Download - pubs.usgs.gov · XLS file · Web view2005-01-31 · District 10 District 09 District 08 District 07 District 06 District 05 District 04 District 03 District 02 District 01 In flood--unable

document.xls

District 01

DISCHARGE "A"Missouri Department of Transportation (MoDOT) district 01 (fig. 1)

Discharge Contraction scour Abutment scour

TypeTotal

MethodMain channel

OverbankLeft

Route CountyLeft Right

b[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft]

A1153A&B DILLON CR IS229 ANDREW 1 164 15.2 Q100 7220 7220 REG 14.4 4.3 L -- -- 7.7 -- 13.2A1251 ONE HUNDRED TWO RI RT00B ANDREW 1 353 635 Q100 42100 34700 BC 17.2 4.5 L 16.9 15.5 7.7 7.7 20.2A1290A&B MILL CR & RD IS029 ANDREW 1 243 3.48 Q100 3580 3580 REG 10.5 0.5 L -- -- 7.6 7.6 11.4A1782 LINCOLN CR RT00H ANDREW 1 129 17.0 Q100 7410 7410 REG 15.2 0.5 L -- -- 7.7 -- 12.1A4345 ONE HUNDRED TWO RI US169 ANDREW 1 503 755 Q100 45200 45200 REG 18.6 0.0 L 27.7 -- 8.7 3.9 15.2K131 PLATTE RI OF MO048 ANDREW 1 107 617 Q100 39700 1112 EST 4.4 -- -- -- -- -- -- --K350 DILLON CR RT00K ANDREW 1 127 19.8 Q100 8070 8070 REG 14.1 14.5 L -- -- 3.9 -- 14.0K84 PLATTE RI MO048 ANDREW 1 404 617 Q100 39700 38509 EST 17.2 0.0 L -- 28.2 15.7 8.5 14.6L633 PEDLAR CR RT00H ANDREW 1 109 18.5 Q100 6820 6820 REG 14.6 7.9 L -- -- 3.9 -- 20.7N868 PLATTE RI RT00O ANDREW 1 399 678 Q100 41500 41500 REG 21.7 8.1 L 17.4 8.6 9.7 7.7 17.7P570 ARAPAHOE CR RT00Y ANDREW 1 139 21.7 Q100 8250 8250 REG 17.3 17.9 L -- -- 8.5 -- 31.4S190 STREAM RT00A ANDREW 1 81 3.00 Q100 2660 2660 REG 11.6 13.8 L -- -- 3.9 -- 18.1A1863 M FK TARKIO CR RT00O ATCHISON 1 141 18.9 Q100 6560 6560 REG 16.6 2.5 L -- -- 6.4 -- 14.3A2545 ROCK CR US136 ATCHISON 1 137 36.5 Q100 8450 8450 REG 13.3 1.2 L -- -- 5.5 -- 12.7G674 COW CR US136 ATCHISON 1 137 7.06 Q100 3920 3920 REG 12.5 0.0 L -- -- 6.4 -- 12.3J222 E FK HIGH CR US275 ATCHISON 1 163 16.3 Q100 7310 7310 REG 12.5 6.3 L -- -- 6.4 6.4 12.3J23 E FK TARKIO CR US136 ATCHISON 1 98 6.98 Q100 3580 3580 REG 11.1 16.4 L -- -- 7.7 -- 21.6K812 M FK TARKIO CR RT00C ATCHISON 1 121 19.2 Q100 7140 7140 REG 17.4 0.0 L -- -- 10.2 -- 26.7K827 E FK TARKIO CR RT00C ATCHISON 1 212 219 Q100 21500 21500 REG 20.9 9.3 L -- -- 12.2 4.8 31.0N274 LONG BR RT00M ATCHISON 1 119 9.90 Q100 5320 5320 REG 14.7 13.4 L -- -- 4.4 -- 13.4N733 LONG BR RT0TT ATCHISON 1 106 8.47 Q100 5100 5100 REG 14.3 10.4 L -- -- 3.9 -- 19.5P330 E FK TARKIO CR RT00N ATCHISON 1 197 59.6 Q100 12200 12200 REG 14.4 0.0 L -- 17.8 11.6 -- 13.3R186 HICKORY BR RT0EE ATCHISON 1 109 10.1 Q100 5220 5220 REG 13.9 8.0 L -- -- 5.7 -- 18.0R276 L TARKIO CR RT00N ATCHISON 1 201 13.3 Q100 5680 5680 REG 15.3 0.0 L -- -- 6.4 -- 13.7T813 HICKORY CR MO046 ATCHISON 1 80 7.33 Q100 4310 4310 REG 13.3 0.0 L -- -- 13.6 -- 12.7X576 ROCK CR RT00B ATCHISON 1 105 14.7 Q100 5550 5550 REG 15.9 14.6 L -- -- 11.7 -- 17.6A520 CONTRARY CR RT0JJ BUCHANAN 1 194 22.5 Q100 13000 13000 REG 17.4 1.4 L -- -- 7.7 -- 12.9K681 LOST CR DD US059 BUCHANAN 1 98 6.18 Q100 4810 4810 REG 11.3 -- -- -- -- -- -- --S445 L SUGAR CR MO116 BUCHANAN 1 102 7.70 Q100 4840 4840 REG 14.7 3.5 L -- -- 3.9 -- 13.9S785 BEE CR MO116 BUCHANAN 1 134 28.0 Q100 8930 8930 REG 15.1 11.1 L 14.2 -- 3.9 -- 19.2A1014 LONG BR US036 CALDWELL 1 149 11.8 Q100 5030 5030 REG 9.0 -- -- -- -- -- -- --A603 N FK MUD CR RT00A CALDWELL 1 147 29.4 Q100 8820 8820 REG 13.4 13.1 L -- -- 7.7 -- 19.3G400 SHEEP CROSSING CR RT00W CALDWELL 1 28 2.63 Q100 2470 2470 REG 16.5 15.2 L -- -- -- -- 31.3G402 CREEK BU036 CALDWELL 1 20 2.60 Q100 2770 1965 BC 17.9 16.7 L -- -- -- -- 45.7N318 TOM CR RT00U CALDWELL 1 98 10.8 Q100 5540 5540 REG 12.6 16.0 L -- -- 3.9 -- 17.0N319 COTTONWOOD CR RT00U CALDWELL 1 111 5.71 Q100 3760 3760 REG 9.6 4.9 L -- 12.2 7.6 -- 9.0N536 MUD CR RT00N CALDWELL 1 174 81.0 Q100 13700 8755 BC 12.8 5.2 L 6.0 5.1 7.7 -- 19.5N735 OTTER CR RT00U CALDWELL 1 103 13.6 Q100 5710 5710 REG 12.2 13.7 L 16.2 17.5 3.2 -- 20.1R526 PLUM CR RT0HH CALDWELL 1 113 6.43 Q100 3360 3360 REG 10.3 7.9 L 9.6 -- 10.4 -- 16.2T844 WILLOW CR RT0KK CALDWELL 1 101 6.97 Q100 4330 4330 REG 10.9 1.7 L 7.3 12.2 3.2 -- 11.1T863 PANTHER CR RT00A CALDWELL 1 99 10.3 Q100 4980 3080 BC 8.9 1.7 L 8.3 8.5 7.2 -- 14.5X565 MCGUIRE CR BR RT0NN CLINTON 1 77 8.42 Q100 4280 4280 REG 12.7 18.2 L -- -- 6.7 -- 33.9A1756A&B GRAND RI IS035 DAVIESS 1 1335 2100 Q100 86800 86800 REG 13.4 -- -- -- -- -- -- --A3015 E BRUSHY CR RT0RA DAVIESS 1 110 3.48 Q100 2990 2990 REG 10.1 3.5 L -- -- 3.2 -- 11.2A4227 GRAND RI RT00Z DAVIESS 1 342 1250 Q100 65600 65600 REG 25.9 -- -- -- -- -- -- --

Table 3. Bridge site information and estimated scour depths from rapid estimation assessments (Level 1+) in Missouri.

[ft, feet; mi2, square miles; ft3/s, cubic feet per second; --, not determined]Depth of flow at bridge

Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number

Stream name in potential-scour (Level 1) database (table 2)

Physio-graphic region

Bridge length

Drain-age area Qtot Q2 Y2 Ycm Ycl Ycr Ypm Ypo Yal

[mi2] [ft3/s] [ft3/s]

C D E F G H I J K L M N O P Q R S T U123456789

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J6

Type of discharge: Q100 - 100-year peak discharge Q500 - 500-year peak discharge Qimp - impendent road or levee overtopping discharge

M6

Method used to determine discharge: REG - Discharge determined using regional regression equations from Alexander and Wilson (1995). BC - Impendent discharge was back-calculated using the depth of flow at the bridge and generalized unit discharge equations for each physiographic region, Qimp = b * 0.888 * y21.653 for Region 1, Central Lowlands and Region 3, Mississippi Alluvial Plain, or Qimp = b * 0.918 * y21.664 for Region 2, Ozark Plateaus If Qimp < Q100, discharge through bridge, Q2, for 100-year discharge, Q2 = Q100 - 1/2 (Q100 - Qimp) EST - Estimated, usually by a distribution of conveyance through each bridge at a site with multiple bridges, where Ka = (1.49 * ba * y2a5/3) / na conveyance of bridge "a" Kb = (1.49 * bb * y2b5/3) / nb conveyance of bridge "b", and Q2a = Qtot * Ka / (Ka + Kb) discharge through bridge "a" GAGE - Discharge determined from gaging station at structure (usually because of substantial difference from discharge determined using regional regression equations)

C7

The "Structure Number" is a unique identifier assigned to each bridge. Structure numbers followed by "A&B" are bridges over the same stream on a multi-lane, divided highway, and are counted as two bridges in table 4 in the text. Structure numbers in bold-face type had Level 1+ assessment performed in 2002.

D7

The following abbreviations are used in stream names, except when part of proper name: BR - Branch CHAN - channel CR - Creek DD - Drainage Ditch DIST - Uncertain; assumed to be "District" or "Distributor" (typically found in conjunction with drainage ditches) FK - Fork L - Little (as in Little Piney Creek) LAT - Lateral, used in conjuction with drainage ditches M - Middle (as in Middle Fork Tarkio Creek) N, S, E, W - North, South, East, and West respectively (usually refers to a fork or branch of a stream) OF - Overflow (usually used with flood relief bridge) RD - Road RI - River RR - Railroad SL - Slough

E7

Highway Number, abbreviated using the following format: All are two letters followed by three numbers with leading zeroes (lettered highways use up to three letters with leading zeroes (i.e., "RT0WW" is "RT" - zero - "WW" and stands for State lettered highway "WW")). In order of priority: IS - Interstates (i.e., "Interstate 29" -- IS029) US - U.S. Highways (i.e., "U.S. Route 63" -- US063) MO - State Numbered Highway (i.e., "State Route 142" -- MO142) RT - State Lettered Highway (i.e., "State Route 'WW' -- RT0WW) OR - Outer Road or Old Route (i.e., "Outer Road I-44" -- OR044) BU - Business Route of primary highway (i.e., "Business Route 63" -- BU063) Interstate and U.S. Highway numbers are unique across the country; State Numbered Highways are unique to the state; State Lettered Highways are unique to the county (i.e., there will likely be a RT00A in every county, and only occassionally will it cross the county line).

G7

Physiographic Region (fig 1) is used to determine discharge from regional regression equations in Alexander and Wilson (1995): 1 - Central Lowlands 2 - Ozark Plateaus 3 - Mississippi Alluvial Plain

P10

Type: L = live bed C = clear water

document.xls

District 01

Missouri Department of Transportation (MoDOT) district 01 (fig. 1)

Route County b[ft]

A1153A&B DILLON CR IS229 ANDREW 1 164 15.2A1251 ONE HUNDRED TWO RI RT00B ANDREW 1 353 635A1290A&B MILL CR & RD IS029 ANDREW 1 243 3.48A1782 LINCOLN CR RT00H ANDREW 1 129 17.0A4345 ONE HUNDRED TWO RI US169 ANDREW 1 503 755K131 PLATTE RI OF MO048 ANDREW 1 107 617K350 DILLON CR RT00K ANDREW 1 127 19.8K84 PLATTE RI MO048 ANDREW 1 404 617L633 PEDLAR CR RT00H ANDREW 1 109 18.5N868 PLATTE RI RT00O ANDREW 1 399 678P570 ARAPAHOE CR RT00Y ANDREW 1 139 21.7S190 STREAM RT00A ANDREW 1 81 3.00A1863 M FK TARKIO CR RT00O ATCHISON 1 141 18.9A2545 ROCK CR US136 ATCHISON 1 137 36.5G674 COW CR US136 ATCHISON 1 137 7.06J222 E FK HIGH CR US275 ATCHISON 1 163 16.3J23 E FK TARKIO CR US136 ATCHISON 1 98 6.98K812 M FK TARKIO CR RT00C ATCHISON 1 121 19.2K827 E FK TARKIO CR RT00C ATCHISON 1 212 219N274 LONG BR RT00M ATCHISON 1 119 9.90N733 LONG BR RT0TT ATCHISON 1 106 8.47P330 E FK TARKIO CR RT00N ATCHISON 1 197 59.6R186 HICKORY BR RT0EE ATCHISON 1 109 10.1R276 L TARKIO CR RT00N ATCHISON 1 201 13.3T813 HICKORY CR MO046 ATCHISON 1 80 7.33X576 ROCK CR RT00B ATCHISON 1 105 14.7A520 CONTRARY CR RT0JJ BUCHANAN 1 194 22.5K681 LOST CR DD US059 BUCHANAN 1 98 6.18S445 L SUGAR CR MO116 BUCHANAN 1 102 7.70S785 BEE CR MO116 BUCHANAN 1 134 28.0A1014 LONG BR US036 CALDWELL 1 149 11.8A603 N FK MUD CR RT00A CALDWELL 1 147 29.4G400 SHEEP CROSSING CR RT00W CALDWELL 1 28 2.63G402 CREEK BU036 CALDWELL 1 20 2.60N318 TOM CR RT00U CALDWELL 1 98 10.8N319 COTTONWOOD CR RT00U CALDWELL 1 111 5.71N536 MUD CR RT00N CALDWELL 1 174 81.0N735 OTTER CR RT00U CALDWELL 1 103 13.6R526 PLUM CR RT0HH CALDWELL 1 113 6.43T844 WILLOW CR RT0KK CALDWELL 1 101 6.97T863 PANTHER CR RT00A CALDWELL 1 99 10.3X565 MCGUIRE CR BR RT0NN CLINTON 1 77 8.42A1756A&B GRAND RI IS035 DAVIESS 1 1335 2100A3015 E BRUSHY CR RT0RA DAVIESS 1 110 3.48A4227 GRAND RI RT00Z DAVIESS 1 342 1250


[ft, feet; mi2, square miles; ft3/s, cubic feet per second; --, not determined]

Structure number



Bridge length

Drain-age area[mi2]

DISCHARGE "A" DISCHARGE "B"

Abutment scour Discharge Contraction scour

RightType

TotalMethod

Main channelOverbank

Left Right

[ft] [ft] [ft] Type [ft] [ft] [ft] [ft]14.1 Q500 9600 9600 REG 16.4 17.8 L -- -- 7.7 --14.4 Qimp 27300 27300 BC 14.9 5.5 L 9.8 7.6 7.7 7.711.4 Q500 4790 4790 REG 12.3 0.6 L -- -- 7.6 7.612.1 Q500 9870 9870 REG 17.5 0.6 L -- -- 7.7 --15.2 Q500 59400 59400 REG 21.7 0.0 L 38.2 -- 8.7 4.0

-- Q500 52400 1468 EST 5.2 -- -- -- -- -- --13.1 Q500 10700 10700 REG 16.7 24.6 L -- -- 3.9 --17.0 Q500 52400 50828 EST 20.3 2.9 L -- 35.5 15.8 8.619.9 Q500 9170 9170 REG 16.0 13.8 L -- -- 3.9 --20.8 Q500 54700 54700 REG 24.2 11.5 L 22.2 15.1 9.7 7.826.6 Q500 11000 11000 REG 19.8 29.9 L -- -- 8.6 --14.2 Q500 3620 3620 REG 14.0 17.9 L -- -- 3.9 --14.3 Q500 8850 8850 REG 18.6 2.7 L -- -- 6.5 --12.7 Q500 11400 11400 REG 15.9 12.1 L -- -- 5.5 --12.3 Q500 5320 5320 REG 14.8 0.0 L -- -- 6.4 --13.9 Q500 9740 9740 REG 14.4 15.1 L -- -- 6.4 6.424.6 Q500 4890 4890 REG 11.5 17.9 L -- -- 7.7 --26.7 Q500 9570 9570 REG 20.0 6.0 L -- -- 10.3 --33.2 Q500 28700 28700 REG 22.2 12.9 L -- -- 12.2 4.819.5 Q500 7140 7140 REG 16.6 18.6 L -- -- 4.4 --13.2 Q500 6840 6840 REG 16.0 15.9 L -- -- 3.9 --13.3 Q500 16400 16400 REG 17.3 0.0 L -- 26.2 11.7 --15.8 Q500 7020 7020 REG 13.4 10.7 L -- -- 5.7 --13.7 Q500 7660 7660 REG 17.8 0.0 L -- -- 6.5 --12.7 Q500 5820 5820 REG 15.1 0.7 L -- -- 13.6 --13.9 Q500 7510 7510 REG 18.6 22.7 L -- -- 11.7 --12.9 Q500 16800 16800 REG 19.0 1.5 L -- -- 7.7 --

-- Q500 6410 6410 REG 13.5 -- -- -- -- -- --12.0 Q500 6480 6480 REG 16.4 5.6 L -- -- 3.9 --12.8 Q500 11900 11900 REG 18.0 16.5 L 17.9 -- 3.9 --

-- Q500 6810 6810 REG 10.8 -- -- -- -- -- --16.8 Q500 11800 11800 REG 15.3 16.0 L -- -- 7.7 --32.3 Q500 3370 3370 REG 19.9 15.6 L -- -- -- --45.7 Qimp 1160 1160 BC 13.0 22.4 L -- -- -- --15.6 Q500 7430 7430 REG 14.7 21.5 L -- -- 3.9 --20.9 Q500 5090 5090 REG 11.5 5.3 L -- 16.9 10.5 --17.3 Qimp 3810 3810 BC 8.4 4.7 L -- 0.5 7.6 --16.0 Q500 7700 7700 REG 14.6 16.6 L 19.5 21.4 3.3 --

9.6 Q500 4600 4600 REG 12.3 11.9 L 13.8 -- 10.5 --10.9 Q500 5830 5830 REG 12.6 4.1 L 12.5 16.4 3.2 --

6.1 Qimp 1180 1180 BC 5.0 3.1 L -- -- 7.1 --39.0 Q500 5800 5800 REG 15.2 18.2 L -- -- 6.8 --

-- Q500 112000 112000 REG 15.7 -- -- -- -- -- --12.8 Q500 4050 4050 REG 10.8 7.0 L -- -- 3.2 --

-- Q500 85400 85400 REG 30.4 -- -- -- -- -- --

Depth of flow at bridge

Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Yar Qtot Q2 Y2 Ycm Ycl Ycr Ypm Ypo

[ft3/s] [ft3/s]

C D E F G H I V W X Y Z AA AB AC AD AE AF AG123456789

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document.xls

District 01


Route County b[ft]




Structure number



Bridge length

Drain-age area[mi2]

DISCHARGE "B"COMMENTS AND NOTES

OT

Abutment scour

PF AR

Left Right

LI PS RR RD[ft] [ft] SD Notes17.0 17.9 N N N Y N Y Y -- Rip Rap covering R&L abuts and aprons; mostly cobblesize and boulder. Extensive debris along RB and U/S 100 feet. U/S bridge was considered in the evaluation with no observable scour.16.7 8.6 P Y N Y N N -- -- No protection on both abuts or banks. Impendent sections occur on both sides of raised bridge. Discontinuous levees exists on both overbanks.14.7 14.7 N N N Y N Y Y -- Completely riprapped on both banks; small channel with low flow for a significant opening. No distinct FPs; Additional county road exists under bridge that does not get overtopped at the Q500.16.5 16.5 N N N Y N M -- -- Riprap covering L abut only. Possibility of inundation onto LFP according to Q500 calculation.20.1 20.1 N N N Y N Y Y -- Boulder-size riprap at both banks extending into channel and existing on the L abut. Calculations show flow not getting onto RFP.

-- -- -- -- -- -- -- -- -- -- This overflow roughly conveys 3% of the flow from the respective main bridge K-84. As such, the main bridge will be the only bridge assessed. No signs of scour at this bridge.18.9 18.1 N Y N Y N N Y -- Recently placed riprap underneath bridge on the L abut and bank. Deep erosional features exist through loess material on the LB.19.8 20.9 N N N Y N N -- -- LB has limestone/shale outcrop exposed from cutbank just U/S and underneath bridge. No riprap visible. Some debris in channel. Bent #2 has local scour hole in sand channel approx 15' in diameter and 2-3' deep. R-abut inlayed block cobbling.24.6 23.8 N N N Y N M Y -- Riprap has been placed on LB and L abut in '93. Significant erosional features exist on the RB and have deeply incised 1 H-pile.20.9 23.1 N N N Y N N -- -- No riprap existing on the R or LB. Channel is composed primarily of silt and sand with hardpan clay at depth.37.3 35.1 N N N Y N M Y -- Riprap is scattered on both abuts.20.8 18.6 P Y Y Y Y Y N -- Riprap and brickwork on the abut faces currently being undercut. Fallen trees in U/S channel. Channel migrating right underneath bridge.18.1 18.1 N N Y Y ? M Y -- Deeply incised channel with an approximate depth of 24'. Cutbanks are near vertical. Riprap in the form of broken concrete and asphalt exposed primarily on the LB. Riprap exists primarily in the middle channel left.17.7 17.7 N P N Y N N -- -- Mass wasting is significant around banks. Area is urbanized and bank is built up on the left side at the approach so that at Q100 no contributing FP flow will occur.16.7 16.7 N N N Y ? M Y -- Mass wasting is significant at L abut. Bottom of abut and partial footing are exposed. Bottom of L abut is exposed as well. Large chunks of broken concrete exist down L abut and on into channel. Deep erosional features common on abuts.15.9 17.5 N N N Y N N -- -- Significant cutbanks on RB U/S. Moderate debris exists just D/S of bridge.23.0 25.9 N N Y Y N Y Y -- Riprap has recently been placed extensively underneath bridge extending into channel; large boulders are frequent. Bridge is well protected; channel deeply incised.35.4 35.4 N N P Y N M Y -- Very deeply incised channel with near vertical banks. Small confluence exists U/S approx 70'. Channel appears channelized. Riprap is very scarce and non-functional.35.2 36.3 N P N Y ? M Y -- Significant riprap recently placed on RB from abut into channel. Old timber piles are reinforced by steel H-piles. H-pile footings are exposed as concrete connecting caps. Significant debris exists within pier bents.17.0 21.2 N N Y N N M Y -- Marginal riprap exists on RB underneath bridge and in roadway drainage ditches on the U/S and D/S sides of the RB. RFP has rather small retention area.20.9 16.3 N N N Y N M Y -- R abut has marginal riprap in the form of concrete slabs extending down into the channel. Channel is deeply incised with extreme cutbanks. Due to channel configuration flow will not exist over into the FPs.18.6 18.6 N N N Y N N -- -- Concrete connecting caps exposed as footings on reinforcing H-piles included in timber-pile bents. Extreme mass wasting exists of U/S and D/S channel banks.17.0 14.9 N N N Y N N -- -- Significant mass wasting underneath bridge; cutbanks are severe U/S.18.4 18.4 N N N Y Y M N -- Stream is deeply incised with vertical banks. Mass wasting of overbank material exists along and below bridge.16.1 16.1 N N P Y N N -- -- No effective riprap on abuts or banks; however, riprap has been recently placed in erosional features existing on the RB U/S. Right bank has been cut; channel is very deep, as a result no flow will get onto RFP.20.9 19.1 N N N Y ? N -- -- No riprap ; H-piles supplement pre-existing timber piles producing a 4.5' effective pier width. Channel overall is narrow and deeply incised.15.9 15.9 N N N N Y M Y -- Deeply incised channel with large riprap on RB. Concrete debris exist D/S in channel. LB and abut very steep. Flow does not get out onto either FP.

-- -- -- -- -- -- -- -- -- -- Bridge has been replaced with A497617.2 15.2 N P N Y Y Y Y -- Riprap on both bank and abut faces. Steep banks, deeply incised channel. Riprap is arresting slope failure, but any further slumping will threaten abuts and approaches. Large meander U/S.21.8 18.2 N P N Y ? M N -- Riprap on RB is slumped; minimal riprap on LB. Meander bend U/S. Steep, well vegetated banks; some slumping observed on D/S banks.

-- -- P N P Y Y N -- -- Bridge D/S of new bridge is A-5337 on US 36. New bridge is designed to resist scour with riprap on both abuts and banks. Old bridge has exposed pile footings; however U/S bridge will limit further exposure.20.9 19.8 P P N P N N -- -- Deep channel with steep banks. Large cutbank on D/S RB and U/S RB. Slumps on other banks. FP is shared with A604 which seems to appear in worse shape.31.8 32.8 P Y P Y Y N -- -- Some concrete on U/S LB. Meandering is significant D/S. Cutbanks exist at all meanders. Footings at both abuts are exposed.43.0 43.0 Y Y Y Y Y N -- -- Immediately D/S from reservoir on Business 36; channel from spillway contains flow to approx 100 feet U/S so FP widths were taken at 45 deg. Q's most likely overestimated due to reservoir U/S. Cutbanks D/S.20.1 19.5 P P N Y Y Y N -- Potential road overflow area on LFP. Riprap on both abut faces. Cutbanks and slumps on both D/S banks. U/S channel appears channelized. Qimp approx equals Q500.13.8 22.7 P P Y Y ? N N -- Riprap and concrete and asphalt debris exist on both banks but not on the abuts. Large meander and cutbanks on U/S LB partially arrested with concrete debris.11.4 6.6 Y N N N N N -- -- Road overflow areas on both sides. Deep, steep banked channel. Highly channelized. Cobbles across channel D/S of bridge.22.2 19.9 P Y N N Y N -- -- Concrete debris on LB to arrest mild lateral migration. Shallow channel with steep, well vegetated banks.19.6 14.2 P N Y P N Y Y -- Concreted riprap on L abut face up to an approximate 8' depth. Channel exist along the R-edge of the FP; therefore, no RFP. R abut and bank exist on a limestone outcrop exposed near the bridge. Channel bottom is bedrock.14.4 14.2 P Y N Y Y M N -- Channel degradation apparent. Riprap exists on both banks and partially on abut faces. Substantial meandering D/S with significant cutbanks. U/S LBs covered with riprap at a 12' depth.

2.3 -- Y N Y P Y N -- -- Channel on edge of Shoal Creek FP. Agricultural levees line both sides of roads; however, they curve to allow road overflow. Riprap and concrete debris on RB and underneath bridge. Steep banks on all banks.33.8 39.0 P Y N Y Y Y N -- Steep banks; deeply incised channel. Riprap on both banks to arrest slumping. Concrete footers exist under timber piles on L abut. Debris is gathered on pile bents.

-- -- N N N Y Y Y Y -- Bridge opening is very large; no signs of scour present. Recently placed riprap on abuts. High water marks show water surface elevations below setback elevations.12.6 14.2 N N N Y N M N -- RB has partial riprap along with culvert pipe just U/S.

-- -- N N N P N Y Y -- RB and abut has recently deposited riprap. LB has limestone/shale outcrop which has been moderately undermined where weaker mud & siltstones lie underneath. Q500 still well below low steel. Photos taken.

OT - Potential for road overtopping?

PF - Chance of pressure flow through bridge opening?

AR - Armored appearance to channel bed?LI - Lateral instability of channel (i.e. is channel migrating)?

PS - Evidence of local pier scour?RR - Riprap on abutments or banks?

RD - Riprap "designed" as a scour countermeasure?Yal Yar SD - Spurdikes present?

C D E F G H I AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV123456789

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document.xls

District 01


Route County b[ft]




Structure number



Bridge length

Drain-age area[mi2]

COMMENTS AND NOTES

Comment codes:

NotesRip Rap covering R&L abuts and aprons; mostly cobblesize and boulder. Extensive debris along RB and U/S 100 feet. U/S bridge was considered in the evaluation with no observable scour.No protection on both abuts or banks. Impendent sections occur on both sides of raised bridge. Discontinuous levees exists on both overbanks.Completely riprapped on both banks; small channel with low flow for a significant opening. No distinct FPs; Additional county road exists under bridge that does not get overtopped at the Q500.Riprap covering L abut only. Possibility of inundation onto LFP according to Q500 calculation.Boulder-size riprap at both banks extending into channel and existing on the L abut. Calculations show flow not getting onto RFP.This overflow roughly conveys 3% of the flow from the respective main bridge K-84. As such, the main bridge will be the only bridge assessed. No signs of scour at this bridge.Recently placed riprap underneath bridge on the L abut and bank. Deep erosional features exist through loess material on the LB.LB has limestone/shale outcrop exposed from cutbank just U/S and underneath bridge. No riprap visible. Some debris in channel. Bent #2 has local scour hole in sand channel approx 15' in diameter and 2-3' deep. R-abut inlayed block cobbling.Riprap has been placed on LB and L abut in '93. Significant erosional features exist on the RB and have deeply incised 1 H-pile.No riprap existing on the R or LB. Channel is composed primarily of silt and sand with hardpan clay at depth.Riprap is scattered on both abuts.Riprap and brickwork on the abut faces currently being undercut. Fallen trees in U/S channel. Channel migrating right underneath bridge.Deeply incised channel with an approximate depth of 24'. Cutbanks are near vertical. Riprap in the form of broken concrete and asphalt exposed primarily on the LB. Riprap exists primarily in the middle channel left.Mass wasting is significant around banks. Area is urbanized and bank is built up on the left side at the approach so that at Q100 no contributing FP flow will occur.Mass wasting is significant at L abut. Bottom of abut and partial footing are exposed. Bottom of L abut is exposed as well. Large chunks of broken concrete exist down L abut and on into channel. Deep erosional features common on abuts.Significant cutbanks on RB U/S. Moderate debris exists just D/S of bridge.Riprap has recently been placed extensively underneath bridge extending into channel; large boulders are frequent. Bridge is well protected; channel deeply incised.Very deeply incised channel with near vertical banks. Small confluence exists U/S approx 70'. Channel appears channelized. Riprap is very scarce and non-functional.Significant riprap recently placed on RB from abut into channel. Old timber piles are reinforced by steel H-piles. H-pile footings are exposed as concrete connecting caps. Significant debris exists within pier bents.Marginal riprap exists on RB underneath bridge and in roadway drainage ditches on the U/S and D/S sides of the RB. RFP has rather small retention area.R abut has marginal riprap in the form of concrete slabs extending down into the channel. Channel is deeply incised with extreme cutbanks. Due to channel configuration flow will not exist over into the FPs.Concrete connecting caps exposed as footings on reinforcing H-piles included in timber-pile bents. Extreme mass wasting exists of U/S and D/S channel banks.Significant mass wasting underneath bridge; cutbanks are severe U/S.Stream is deeply incised with vertical banks. Mass wasting of overbank material exists along and below bridge.No effective riprap on abuts or banks; however, riprap has been recently placed in erosional features existing on the RB U/S. Right bank has been cut; channel is very deep, as a result no flow will get onto RFP.No riprap ; H-piles supplement pre-existing timber piles producing a 4.5' effective pier width. Channel overall is narrow and deeply incised.Deeply incised channel with large riprap on RB. Concrete debris exist D/S in channel. LB and abut very steep. Flow does not get out onto either FP.Bridge has been replaced with A4976Riprap on both bank and abut faces. Steep banks, deeply incised channel. Riprap is arresting slope failure, but any further slumping will threaten abuts and approaches. Large meander U/S.Riprap on RB is slumped; minimal riprap on LB. Meander bend U/S. Steep, well vegetated banks; some slumping observed on D/S banks.Bridge D/S of new bridge is A-5337 on US 36. New bridge is designed to resist scour with riprap on both abuts and banks. Old bridge has exposed pile footings; however U/S bridge will limit further exposure.Deep channel with steep banks. Large cutbank on D/S RB and U/S RB. Slumps on other banks. FP is shared with A604 which seems to appear in worse shape.Some concrete on U/S LB. Meandering is significant D/S. Cutbanks exist at all meanders. Footings at both abuts are exposed.Immediately D/S from reservoir on Business 36; channel from spillway contains flow to approx 100 feet U/S so FP widths were taken at 45 deg. Q's most likely overestimated due to reservoir U/S. Cutbanks D/S.Potential road overflow area on LFP. Riprap on both abut faces. Cutbanks and slumps on both D/S banks. U/S channel appears channelized. Qimp approx equals Q500.Riprap and concrete and asphalt debris exist on both banks but not on the abuts. Large meander and cutbanks on U/S LB partially arrested with concrete debris.Road overflow areas on both sides. Deep, steep banked channel. Highly channelized. Cobbles across channel D/S of bridge.Concrete debris on LB to arrest mild lateral migration. Shallow channel with steep, well vegetated banks.Concreted riprap on L abut face up to an approximate 8' depth. Channel exist along the R-edge of the FP; therefore, no RFP. R abut and bank exist on a limestone outcrop exposed near the bridge. Channel bottom is bedrock.Channel degradation apparent. Riprap exists on both banks and partially on abut faces. Substantial meandering D/S with significant cutbanks. U/S LBs covered with riprap at a 12' depth.Channel on edge of Shoal Creek FP. Agricultural levees line both sides of roads; however, they curve to allow road overflow. Riprap and concrete debris on RB and underneath bridge. Steep banks on all banks.Steep banks; deeply incised channel. Riprap on both banks to arrest slumping. Concrete footers exist under timber piles on L abut. Debris is gathered on pile bents.Bridge opening is very large; no signs of scour present. Recently placed riprap on abuts. High water marks show water surface elevations below setback elevations.RB has partial riprap along with culvert pipe just U/S.RB and abut has recently deposited riprap. LB has limestone/shale outcrop which has been moderately undermined where weaker mud & siltstones lie underneath. Q500 still well below low steel. Photos taken.



AR - Armored appearance to channel bed? N - NoLI - Lateral instability of channel (i.e. is channel migrating)? Y - Yes

PS - Evidence of local pier scour? P - PossibleRR - Riprap on abutments or banks? M - Marginal

RD - Riprap "designed" as a scour countermeasure? ? - Don't knowSD - Spurdikes present? -- - Not determined or not applicable

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The following abbreviations are used in the notes: abut(s) - abutment(s) approx - approximately bbl - barrel (typically found with culverts, as in "3-bbl culvert") cfs - cubic feet per second, a measure of discharge flow rate deg - degrees D/S, U/S - downstream, upstream FP - flood plain L, R - left, right LB, RB - left bank, right bank LFP, RFP - left flood plain, right flood plain LOB, ROB - left overbank/setback, right overbank/setback MI River - Mississippi River MO River - Missouri River Q - discharge Q100, Q500, Qimp - 100-year, 500-year, or impendent discharge RR - railroad w/ - with w/o - without WW - wingwall Yimp - depth of flow associated with impendent discharge

document.xls

District 01


Route County b[ft]




Structure number



Bridge length

Drain-age area[mi2]

Rip Rap covering R&L abuts and aprons; mostly cobblesize and boulder. Extensive debris along RB and U/S 100 feet. U/S bridge was considered in the evaluation with no observable scour.No protection on both abuts or banks. Impendent sections occur on both sides of raised bridge. Discontinuous levees exists on both overbanks.Completely riprapped on both banks; small channel with low flow for a significant opening. No distinct FPs; Additional county road exists under bridge that does not get overtopped at the Q500.Riprap covering L abut only. Possibility of inundation onto LFP according to Q500 calculation.Boulder-size riprap at both banks extending into channel and existing on the L abut. Calculations show flow not getting onto RFP.This overflow roughly conveys 3% of the flow from the respective main bridge K-84. As such, the main bridge will be the only bridge assessed. No signs of scour at this bridge.Recently placed riprap underneath bridge on the L abut and bank. Deep erosional features exist through loess material on the LB.LB has limestone/shale outcrop exposed from cutbank just U/S and underneath bridge. No riprap visible. Some debris in channel. Bent #2 has local scour hole in sand channel approx 15' in diameter and 2-3' deep. R-abut inlayed block cobbling.Riprap has been placed on LB and L abut in '93. Significant erosional features exist on the RB and have deeply incised 1 H-pile.No riprap existing on the R or LB. Channel is composed primarily of silt and sand with hardpan clay at depth.Riprap is scattered on both abuts.Riprap and brickwork on the abut faces currently being undercut. Fallen trees in U/S channel. Channel migrating right underneath bridge.Deeply incised channel with an approximate depth of 24'. Cutbanks are near vertical. Riprap in the form of broken concrete and asphalt exposed primarily on the LB. Riprap exists primarily in the middle channel left.Mass wasting is significant around banks. Area is urbanized and bank is built up on the left side at the approach so that at Q100 no contributing FP flow will occur.Mass wasting is significant at L abut. Bottom of abut and partial footing are exposed. Bottom of L abut is exposed as well. Large chunks of broken concrete exist down L abut and on into channel. Deep erosional features common on abuts.Significant cutbanks on RB U/S. Moderate debris exists just D/S of bridge.Riprap has recently been placed extensively underneath bridge extending into channel; large boulders are frequent. Bridge is well protected; channel deeply incised.Very deeply incised channel with near vertical banks. Small confluence exists U/S approx 70'. Channel appears channelized. Riprap is very scarce and non-functional.Significant riprap recently placed on RB from abut into channel. Old timber piles are reinforced by steel H-piles. H-pile footings are exposed as concrete connecting caps. Significant debris exists within pier bents.Marginal riprap exists on RB underneath bridge and in roadway drainage ditches on the U/S and D/S sides of the RB. RFP has rather small retention area.R abut has marginal riprap in the form of concrete slabs extending down into the channel. Channel is deeply incised with extreme cutbanks. Due to channel configuration flow will not exist over into the FPs.Concrete connecting caps exposed as footings on reinforcing H-piles included in timber-pile bents. Extreme mass wasting exists of U/S and D/S channel banks.Significant mass wasting underneath bridge; cutbanks are severe U/S.Stream is deeply incised with vertical banks. Mass wasting of overbank material exists along and below bridge.No effective riprap on abuts or banks; however, riprap has been recently placed in erosional features existing on the RB U/S. Right bank has been cut; channel is very deep, as a result no flow will get onto RFP.No riprap ; H-piles supplement pre-existing timber piles producing a 4.5' effective pier width. Channel overall is narrow and deeply incised.Deeply incised channel with large riprap on RB. Concrete debris exist D/S in channel. LB and abut very steep. Flow does not get out onto either FP.Bridge has been replaced with A4976Riprap on both bank and abut faces. Steep banks, deeply incised channel. Riprap is arresting slope failure, but any further slumping will threaten abuts and approaches. Large meander U/S.Riprap on RB is slumped; minimal riprap on LB. Meander bend U/S. Steep, well vegetated banks; some slumping observed on D/S banks.Bridge D/S of new bridge is A-5337 on US 36. New bridge is designed to resist scour with riprap on both abuts and banks. Old bridge has exposed pile footings; however U/S bridge will limit further exposure.Deep channel with steep banks. Large cutbank on D/S RB and U/S RB. Slumps on other banks. FP is shared with A604 which seems to appear in worse shape.Some concrete on U/S LB. Meandering is significant D/S. Cutbanks exist at all meanders. Footings at both abuts are exposed.Immediately D/S from reservoir on Business 36; channel from spillway contains flow to approx 100 feet U/S so FP widths were taken at 45 deg. Q's most likely overestimated due to reservoir U/S. Cutbanks D/S.Potential road overflow area on LFP. Riprap on both abut faces. Cutbanks and slumps on both D/S banks. U/S channel appears channelized. Qimp approx equals Q500.Riprap and concrete and asphalt debris exist on both banks but not on the abuts. Large meander and cutbanks on U/S LB partially arrested with concrete debris.Road overflow areas on both sides. Deep, steep banked channel. Highly channelized. Cobbles across channel D/S of bridge.Concrete debris on LB to arrest mild lateral migration. Shallow channel with steep, well vegetated banks.Concreted riprap on L abut face up to an approximate 8' depth. Channel exist along the R-edge of the FP; therefore, no RFP. R abut and bank exist on a limestone outcrop exposed near the bridge. Channel bottom is bedrock.Channel degradation apparent. Riprap exists on both banks and partially on abut faces. Substantial meandering D/S with significant cutbanks. U/S LBs covered with riprap at a 12' depth.Channel on edge of Shoal Creek FP. Agricultural levees line both sides of roads; however, they curve to allow road overflow. Riprap and concrete debris on RB and underneath bridge. Steep banks on all banks.Steep banks; deeply incised channel. Riprap on both banks to arrest slumping. Concrete footers exist under timber piles on L abut. Debris is gathered on pile bents.Bridge opening is very large; no signs of scour present. Recently placed riprap on abuts. High water marks show water surface elevations below setback elevations.RB has partial riprap along with culvert pipe just U/S.RB and abut has recently deposited riprap. LB has limestone/shale outcrop which has been moderately undermined where weaker mud & siltstones lie underneath. Q500 still well below low steel. Photos taken.

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document.xls

District 01


Route County b[ft]




Structure number



Bridge length

Drain-age area[mi2]

Rip Rap covering R&L abuts and aprons; mostly cobblesize and boulder. Extensive debris along RB and U/S 100 feet. U/S bridge was considered in the evaluation with no observable scour.No protection on both abuts or banks. Impendent sections occur on both sides of raised bridge. Discontinuous levees exists on both overbanks.Completely riprapped on both banks; small channel with low flow for a significant opening. No distinct FPs; Additional county road exists under bridge that does not get overtopped at the Q500.Riprap covering L abut only. Possibility of inundation onto LFP according to Q500 calculation.Boulder-size riprap at both banks extending into channel and existing on the L abut. Calculations show flow not getting onto RFP.This overflow roughly conveys 3% of the flow from the respective main bridge K-84. As such, the main bridge will be the only bridge assessed. No signs of scour at this bridge.Recently placed riprap underneath bridge on the L abut and bank. Deep erosional features exist through loess material on the LB.LB has limestone/shale outcrop exposed from cutbank just U/S and underneath bridge. No riprap visible. Some debris in channel. Bent #2 has local scour hole in sand channel approx 15' in diameter and 2-3' deep. R-abut inlayed block cobbling.Riprap has been placed on LB and L abut in '93. Significant erosional features exist on the RB and have deeply incised 1 H-pile.No riprap existing on the R or LB. Channel is composed primarily of silt and sand with hardpan clay at depth.Riprap is scattered on both abuts.Riprap and brickwork on the abut faces currently being undercut. Fallen trees in U/S channel. Channel migrating right underneath bridge.Deeply incised channel with an approximate depth of 24'. Cutbanks are near vertical. Riprap in the form of broken concrete and asphalt exposed primarily on the LB. Riprap exists primarily in the middle channel left.Mass wasting is significant around banks. Area is urbanized and bank is built up on the left side at the approach so that at Q100 no contributing FP flow will occur.Mass wasting is significant at L abut. Bottom of abut and partial footing are exposed. Bottom of L abut is exposed as well. Large chunks of broken concrete exist down L abut and on into channel. Deep erosional features common on abuts.Significant cutbanks on RB U/S. Moderate debris exists just D/S of bridge.Riprap has recently been placed extensively underneath bridge extending into channel; large boulders are frequent. Bridge is well protected; channel deeply incised.Very deeply incised channel with near vertical banks. Small confluence exists U/S approx 70'. Channel appears channelized. Riprap is very scarce and non-functional.Significant riprap recently placed on RB from abut into channel. Old timber piles are reinforced by steel H-piles. H-pile footings are exposed as concrete connecting caps. Significant debris exists within pier bents.Marginal riprap exists on RB underneath bridge and in roadway drainage ditches on the U/S and D/S sides of the RB. RFP has rather small retention area.R abut has marginal riprap in the form of concrete slabs extending down into the channel. Channel is deeply incised with extreme cutbanks. Due to channel configuration flow will not exist over into the FPs.Concrete connecting caps exposed as footings on reinforcing H-piles included in timber-pile bents. Extreme mass wasting exists of U/S and D/S channel banks.Significant mass wasting underneath bridge; cutbanks are severe U/S.Stream is deeply incised with vertical banks. Mass wasting of overbank material exists along and below bridge.No effective riprap on abuts or banks; however, riprap has been recently placed in erosional features existing on the RB U/S. Right bank has been cut; channel is very deep, as a result no flow will get onto RFP.No riprap ; H-piles supplement pre-existing timber piles producing a 4.5' effective pier width. Channel overall is narrow and deeply incised.Deeply incised channel with large riprap on RB. Concrete debris exist D/S in channel. LB and abut very steep. Flow does not get out onto either FP.Bridge has been replaced with A4976Riprap on both bank and abut faces. Steep banks, deeply incised channel. Riprap is arresting slope failure, but any further slumping will threaten abuts and approaches. Large meander U/S.Riprap on RB is slumped; minimal riprap on LB. Meander bend U/S. Steep, well vegetated banks; some slumping observed on D/S banks.Bridge D/S of new bridge is A-5337 on US 36. New bridge is designed to resist scour with riprap on both abuts and banks. Old bridge has exposed pile footings; however U/S bridge will limit further exposure.Deep channel with steep banks. Large cutbank on D/S RB and U/S RB. Slumps on other banks. FP is shared with A604 which seems to appear in worse shape.Some concrete on U/S LB. Meandering is significant D/S. Cutbanks exist at all meanders. Footings at both abuts are exposed.Immediately D/S from reservoir on Business 36; channel from spillway contains flow to approx 100 feet U/S so FP widths were taken at 45 deg. Q's most likely overestimated due to reservoir U/S. Cutbanks D/S.Potential road overflow area on LFP. Riprap on both abut faces. Cutbanks and slumps on both D/S banks. U/S channel appears channelized. Qimp approx equals Q500.Riprap and concrete and asphalt debris exist on both banks but not on the abuts. Large meander and cutbanks on U/S LB partially arrested with concrete debris.Road overflow areas on both sides. Deep, steep banked channel. Highly channelized. Cobbles across channel D/S of bridge.Concrete debris on LB to arrest mild lateral migration. Shallow channel with steep, well vegetated banks.Concreted riprap on L abut face up to an approximate 8' depth. Channel exist along the R-edge of the FP; therefore, no RFP. R abut and bank exist on a limestone outcrop exposed near the bridge. Channel bottom is bedrock.Channel degradation apparent. Riprap exists on both banks and partially on abut faces. Substantial meandering D/S with significant cutbanks. U/S LBs covered with riprap at a 12' depth.Channel on edge of Shoal Creek FP. Agricultural levees line both sides of roads; however, they curve to allow road overflow. Riprap and concrete debris on RB and underneath bridge. Steep banks on all banks.Steep banks; deeply incised channel. Riprap on both banks to arrest slumping. Concrete footers exist under timber piles on L abut. Debris is gathered on pile bents.Bridge opening is very large; no signs of scour present. Recently placed riprap on abuts. High water marks show water surface elevations below setback elevations.RB has partial riprap along with culvert pipe just U/S.RB and abut has recently deposited riprap. LB has limestone/shale outcrop which has been moderately undermined where weaker mud & siltstones lie underneath. Q500 still well below low steel. Photos taken.

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document.xls

District 01



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A876 SAMPSON CR RT00Z DAVIESS 1 173 109 Q100 16100 16100 REG 20.7 0.0 L -- -- 7.7 -- 16.2F1001 OLD CHAN MUDDY CR MO006 DAVIESS 1 84 71.9 Q100 12600 12600 REG 22.3 -- -- -- -- -- -- --F1021 BRUSHY CR MO006 DAVIESS 1 128 26.6 Q100 7970 7970 REG 15.7 4.7 L -- -- 7.7 -- 13.8F11361 MUDDY CR MO006 DAVIESS 1 178 72.8 Q100 12800 12800 REG 19.5 4.1 L -- -- 11.7 -- 15.6F97 GRAND RI MO006 DAVIESS 1 636 2250 Q100 91300 91300 REG 21.7 -- -- -- -- -- -- --F98 GRAND RI OF MO006 DAVIESS 1 115 2250 Q100 91300 91300 REG 61.0 -- -- -- -- -- -- --J146 GRAND RI US069 DAVIESS 1 617 1720 Q100 72400 72400 REG 21.2 9.2 L 20.6 -- 24.7 10.0 28.7J860 HONEY CR MO013 DAVIESS 1 282 97.7 Q100 15800 14315 EST 14.2 7.1 L -- -- 11.0 8.8 13.9K169 L CYPRESS CR MO013 DAVIESS 1 68 4.24 Q100 2610 2610 REG 11.2 13.6 L -- -- 8.6 -- 14.4K170 HICKORY CR MO013 DAVIESS 1 160 16.3 Q100 6330 6330 REG 10.2 14.3 L -- -- 7.6 7.6 16.7P470 PILOT GROVE CR RT00P DAVIESS 1 117 23.2 Q100 7990 7990 REG 16.1 18.9 L -- -- 3.9 -- 21.5P510 BIG MUDDY CR RT00P DAVIESS 1 131 22.9 Q100 6550 6550 REG 16.0 15.2 L -- -- 3.9 -- 14.0R378 MAROWBONE CR RT0HH DAVIESS 1 234 74.0 Q100 23700 23700 REG 24.8 0.0 L 42.1 17.1 7.8 -- 18.1S793 PILOT GROVE CR RT00K DAVIESS 1 76 6.70 Q100 3960 3960 REG 12.7 9.5 L -- -- 4.7 -- 14.9T895 CYPRESS CR RT00B DAVIESS 1 159 36.3 Q100 9450 6710 EST 10.7 12.3 L -- -- 6.7 6.7 16.4T896 L CYPRESS CR RT00B DAVIESS 1 96 35.9 Q100 9440 2740 EST 8.2 0.0 L -- -- 3.9 -- 27.7X733 LICK FK CR RT00M DAVIESS 1 156 36.8 Q100 9980 7410 BC 14.2 14.3 L -- -- -- -- 21.0A1591 CASTILE CR US036 DE KALB 1 181 27.7 Q100 6490 6490 REG 10.2 1.3 L 14.9 14.7 7.6 -- 15.5A4467 JORDAN CR MO006 DE KALB 1 97 13.4 Q100 5860 5860 REG 13.3 17.0 L -- -- 3.9 -- 20.8G538 CASTILE CR US036 DE KALB 1 73 28.0 Q100 6490 5770 BC 18.6 7.3 L -- -- 8.4 -- 20.3J433 GRINDSTONE CR MO006 DE KALB 1 339 254 Q100 25900 25900 REG 14.8 -- -- -- -- -- -- --J605 3RD FK PLATTE RI US169 DE KALB 1 170 45.3 Q100 8660 8660 REG 11.6 18.6 L -- -- 7.6 7.6 22.5J674 W FK LOST CR MO006 DE KALB 1 213 37.0 Q100 9800 9800 REG 10.9 -- -- -- -- -- -- --J675 BIG LOST CR MO006 DE KALB 1 298 157 Q100 18200 18200 REG 12.9 -- -- -- -- -- -- --J73 3RD FK PLATTE RI MO006 DE KALB 1 324 63.9 Q100 10500 10500 REG 8.8 -- -- -- -- -- -- --J776 BIG LOST CR MO006 DE KALB 1 255 158 Q100 18300 18300 REG 14.3 -- -- -- -- -- -- --J777 GRINDSTONE OF MO006 DE KALB 1 243 253 Q100 25600 25600 REG 18.0 -- -- -- -- -- -- --N215 3RD FK PLATTE RI RT00V DE KALB 1 147 81.0 Q100 11900 11900 REG 16.4 12.4 L -- -- 4.8 -- 14.2N537 SMITH BR RT0EE DE KALB 1 105 10.2 Q100 5110 5110 REG 12.7 9.7 L -- -- 3.9 -- 12.4N870 CROOKED CR RT00F DE KALB 1 105 9.80 Q100 4450 4450 REG 13.6 12.9 L -- -- 4.5 -- 12.8R375 L THIRD CR RT00O DE KALB 1 169 53.6 Q100 9640 6380 BC 11.2 0.0 L 3.7 2.4 7.6 -- 14.2S419 ERVENS BR RT00D DE KALB 1 103 5.60 Q100 3690 3690 REG 9.6 5.2 L 15.1 -- 6.1 -- 15.7X140 E FK LOST CR RT00E DE KALB 1 95 12.2 Q100 4330 4330 REG 12.5 16.9 L -- -- 3.9 -- 15.9A1874 ZOUNDS CR RT B GENTRY 1 106 9.41 Q100 4850 4850 REG 12.2 11.8 L -- 11.8 4.7 -- 17.4A2478 PANTHER CR RT C GENTRY 1 145 6.90 Q100 4240 4240 REG 10.2 3.8 L 9.8 14.2 3.9 -- 11.0A2479 WELDON BR RT C GENTRY 1 106 26.4 Q100 7430 6120 BC 13.2 0.0 L 20.6 20.8 3.9 -- 16.1A4498 WILDCAT CR US 169 GENTRY 1 214 106 Q100 18500 14060 EST 15.1 0.0 L 26.2 -- 7.7 -- 12.2A4520 W FK GRAND RI US 136 GENTRY 1 392 353 Q100 31000 25730 EST 15.1 3.4 L 18.1 18.1 6.4 3.9 18.6A4521 W FK GRAND RI US 136 GENTRY 1 201 353 Q100 31000 5270 EST 8.2 0.0 L 17.1 17.1 3.9 -- 19.5A729 M FK GRAND RI US 169 GENTRY 1 429 159 Q100 21100 21100 REG 14.7 12.7 L 10.4 18.4 18.4 -- 18.5F327R1 OLD CHAN ISLAND CR US 136 GENTRY 1 127 49.8 Q100 18500 4440 EST 9.5 0.0 L -- -- 4.1 -- 19.8H223 THOMPSON BR MO 85 GENTRY 1 48 1.30 Q100 1670 1670 REG 9.4 3.2 L -- -- -- -- 16.1H248 TOWN BR MO 85 GENTRY 1 113 10.3 Q100 4870 4870 REG 12.0 7.6 L 8.8 9.0 7.6 -- 12.8H551 BEAR CR RT YY GENTRY 1 193 18.8 Q100 6450 6450 REG 11.6 1.4 L -- 15.7 10.5 3.2 13.1H619R LINN CR US 169 GENTRY 1 182 6.90 Q100 4240 4240 REG 10.6 18.1 L 19.4 -- 8.6 -- 19.8


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document.xls

District 01


Route County b[ft]



Structure number



Bridge length

Drain-age area[mi2]

A876 SAMPSON CR RT00Z DAVIESS 1 173 109F1001 OLD CHAN MUDDY CR MO006 DAVIESS 1 84 71.9F1021 BRUSHY CR MO006 DAVIESS 1 128 26.6F11361 MUDDY CR MO006 DAVIESS 1 178 72.8F97 GRAND RI MO006 DAVIESS 1 636 2250F98 GRAND RI OF MO006 DAVIESS 1 115 2250J146 GRAND RI US069 DAVIESS 1 617 1720J860 HONEY CR MO013 DAVIESS 1 282 97.7K169 L CYPRESS CR MO013 DAVIESS 1 68 4.24K170 HICKORY CR MO013 DAVIESS 1 160 16.3P470 PILOT GROVE CR RT00P DAVIESS 1 117 23.2P510 BIG MUDDY CR RT00P DAVIESS 1 131 22.9R378 MAROWBONE CR RT0HH DAVIESS 1 234 74.0S793 PILOT GROVE CR RT00K DAVIESS 1 76 6.70T895 CYPRESS CR RT00B DAVIESS 1 159 36.3T896 L CYPRESS CR RT00B DAVIESS 1 96 35.9X733 LICK FK CR RT00M DAVIESS 1 156 36.8A1591 CASTILE CR US036 DE KALB 1 181 27.7A4467 JORDAN CR MO006 DE KALB 1 97 13.4G538 CASTILE CR US036 DE KALB 1 73 28.0J433 GRINDSTONE CR MO006 DE KALB 1 339 254J605 3RD FK PLATTE RI US169 DE KALB 1 170 45.3J674 W FK LOST CR MO006 DE KALB 1 213 37.0J675 BIG LOST CR MO006 DE KALB 1 298 157J73 3RD FK PLATTE RI MO006 DE KALB 1 324 63.9J776 BIG LOST CR MO006 DE KALB 1 255 158J777 GRINDSTONE OF MO006 DE KALB 1 243 253N215 3RD FK PLATTE RI RT00V DE KALB 1 147 81.0N537 SMITH BR RT0EE DE KALB 1 105 10.2N870 CROOKED CR RT00F DE KALB 1 105 9.80R375 L THIRD CR RT00O DE KALB 1 169 53.6S419 ERVENS BR RT00D DE KALB 1 103 5.60X140 E FK LOST CR RT00E DE KALB 1 95 12.2A1874 ZOUNDS CR RT B GENTRY 1 106 9.41A2478 PANTHER CR RT C GENTRY 1 145 6.90A2479 WELDON BR RT C GENTRY 1 106 26.4A4498 WILDCAT CR US 169 GENTRY 1 214 106A4520 W FK GRAND RI US 136 GENTRY 1 392 353A4521 W FK GRAND RI US 136 GENTRY 1 201 353A729 M FK GRAND RI US 169 GENTRY 1 429 159F327R1 OLD CHAN ISLAND CR US 136 GENTRY 1 127 49.8H223 THOMPSON BR MO 85 GENTRY 1 48 1.30H248 TOWN BR MO 85 GENTRY 1 113 10.3H551 BEAR CR RT YY GENTRY 1 193 18.8H619R LINN CR US 169 GENTRY 1 182 6.90



RightType

TotalMethod


Left Right

[ft] [ft] [ft] Type [ft] [ft] [ft] [ft]


Maximum pier scour

Through bridge

Main chan-

nel

Over-bank


[ft3/s] [ft3/s]16.2 Q500 21500 21500 REG 23.5 0.0 L -- -- 7.8 --

-- Q500 16900 16900 REG 26.6 -- -- -- -- -- --13.8 Q500 10700 10700 REG 17.5 5.2 L -- -- 7.7 --15.6 Q500 17100 17100 REG 22.4 4.7 L -- -- 11.7 --

-- Q500 118000 118000 REG 25.3 -- -- -- -- -- ---- Q500 118000 118000 REG 71.3 -- -- -- -- -- --

24.5 Q500 94500 94500 REG 23.8 14.5 L 28.0 -- 24.7 10.013.1 Q500 21000 19026 EST 16.2 8.8 L 17.3 -- 11.0 8.811.9 Q500 3590 3590 REG 12.8 18.5 L -- -- 8.6 --25.7 Q500 8520 8520 REG 12.2 25.3 L -- -- 7.6 7.614.0 Q500 10700 10700 REG 17.1 21.1 L -- -- 3.9 --19.8 Q500 8890 8890 REG 17.3 19.2 L -- -- 3.9 --18.7 Q500 30400 30400 REG 27.7 17.5 L 52.1 23.8 7.8 --12.5 Q500 5360 5360 REG 14.3 16.6 L -- -- 4.7 --15.6 Q500 12700 9018 EST 12.8 16.8 L -- -- 6.7 6.728.3 Q500 12700 3686 EST 9.8 0.0 L -- -- 3.9 --

9.5 Qimp 4840 4840 BC 8.6 6.3 L -- -- 4.7 --16.2 Q500 8870 8870 REG 12.0 1.8 L 18.5 18.2 7.6 --23.0 Q500 7880 7880 REG 16.0 17.4 L -- -- 3.9 --36.7 Qimp 5050 5050 BC 17.2 12.2 L -- -- 8.3 --

-- Q500 34300 34300 REG 17.5 -- -- -- -- -- --24.6 Q500 11800 11800 REG 14.0 26.2 L -- -- 7.7 7.7

-- Q500 13100 13100 REG 13.0 -- -- -- -- -- ---- Q500 24400 24400 REG 15.4 -- -- -- -- -- ---- Q500 14200 14200 REG 10.6 -- -- -- -- -- ---- Q500 24500 24500 REG 17.0 -- -- -- -- -- ---- Q500 33900 33900 REG 21.3 -- -- -- -- -- --

16.0 Q500 16100 16100 REG 18.4 16.1 L -- -- 4.8 --16.9 Q500 6890 6890 REG 13.9 11.7 L -- -- 3.9 --18.8 Q500 6050 6050 REG 15.5 15.6 L -- -- 4.6 --13.1 Qimp 3120 3120 BC 7.5 0.0 L 2.6 -- 7.6 --10.9 Q500 4990 4990 REG 11.5 7.0 L 18.4 -- 6.1 --15.3 Q500 5930 5930 REG 14.1 24.1 L -- -- 3.9 --17.8 Q500 6540 6540 REG 13.8 14.8 L -- 16.5 4.7 --12.3 Q500 5720 5720 REG 12.0 10.2 L 15.0 17.8 3.9 --19.3 Qimp 4810 4810 BC 11.3 0.0 L 17.7 18.0 3.9 --12.2 Q500 24400 18544 EST 16.8 0.0 L 29.5 -- 7.7 --19.6 Q500 40900 33947 EST 17.6 5.4 L 22.9 22.9 6.5 3.919.5 Q500 40900 6953 EST 9.3 0.0 L 20.0 20.0 3.9 --17.6 Q500 27900 27900 REG 16.6 15.6 L 15.0 21.8 18.4 --19.8 Q500 24400 5856 EST 11.0 0.0 L -- -- 4.1 --23.1 Q500 2290 2290 REG 11.4 7.0 L -- -- -- --14.0 Q500 6590 6590 REG 13.1 10.2 L 13.6 14.0 7.7 --10.6 Q500 8710 8710 REG 13.2 4.3 L 9.0 19.1 10.5 3.216.8 Q500 5720 5720 REG 12.7 22.2 L 23.4 -- 8.6 --


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District 01


Route County b[ft]



Structure number



Bridge length

Drain-age area[mi2]



OT

Abutment scour

PF AR

Left Right

LI PS RR RD[ft] [ft] SD Notes






20.3 20.3 N N N P N M N -- Channelized river; large levees on both sides. Broken concrete on RB provided as bank protection. Levees on both FPs are consistently higher than low steel of bridge for both FPs.-- -- N Y P N N M N -- Backwater is present at this relief bridge. This bridge conveys roughly 9% of the flow from the main bridge F1136. No observable scour.

17.4 17.4 N N N Y N M Y -- Scattered cobble size riprap on both left and right banks. Slight footing exposure on RB bent. Block cemented cobbling on R abut. No protection on the L abut. Significant debris in U/S channel.20.2 20.2 N N N Y N M Y -- Footing exposure on RB bent. Partial footing exposure on LB.. Sand channel with marginal riprap on RB under bridge and U/S approx 50' on RB. Channel is channelized with steep banks.

-- -- N N N Y ? N N -- Bent #2 has slight scour holes around columns. U/S banks are lined with marginal riprap. Old abuts exist 100' U/S. Photos taken.-- -- N N N Y ? N N -- U/S banks are lined with marginal riprap. Old abuts exist U/S. Photos taken

32.2 30.2 N N N Y Y M Y -- Square inlayed cobbles at L abut. Slight evidence of clear water contraction scour at L-setback. No significant local scour. Large scour hole resulting from massive debris pile-up at conical pier. Photos taken.17.7 17.0 N N N Y N N -- -- No riprap, small erosional gully through L-setback.17.4 14.9 N N N Y N Y N -- Inlayed block cobbles at abuts. Scattered riprap U/S on LB; large concrete chunks and assorted riprap exists on RB U/S.22.5 30.0 N P N Y N Y N -- Riprap exists on both banks and on the outer edges of a blowholes on the R-top of bank and L-top of bank.22.3 15.9 N N N Y N N N -- No riprap; mild slumps along both banks.16.7 21.0 N N N Y N M N -- Marginal riprap filling erosional features on RB. Some cobble/boulder size riprap on LB that is placed in erosional features. Significant amount of debris in approach and exit sections.21.4 21.6 N N N Y N M N Y Riprap exists on R & LBs and abuts. Cobble to boulder size riprap extends into channel. Timber-pile constructed spur dikes exist U/S on the RB. 6-foot dia. culvert pipe exists U/S on LB as an outlet.17.9 15.4 N N N Y N M N -- Severe mass wasting on U/S banks; erosional gullys underneath RB. LB covered with riprap and extending into channel. No riprap exists on either abut.19.8 19.4 N P N Y N M Y -- Recently placed boulder-size riprap on LB and L abut. Extensive debris existing in the approach. Concrete base connecting caps exist on 1 timber-pile bent which has been replaced with steel H-piles.33.2 33.8 N N N N Y M N -- Small amount of riprap on R & L abuts where erosional gullys exist. Small blowhole exists underneath bridge; photo taken.12.2 -- N N N Y N M N -- L abut is fully protected; no riprap on RB or R abut. No riprap on the LB. Qimp will not get onto the RFP.18.8 19.4 N N Y Y Y Y ? -- Dual bridge with G538. Concrete debris along both U/S banks, but a blowhole exists underneath bridge. Riprap exists on both abut faces. U/S flow is controlled by U/S bridge G538.21.1 23.3 P Y N Y N Y N -- Q500 is approx equal to Qimp. Riprap on both banks and abut faces; gravel and cobbles in D/S channel. Cutbanks on U/S and D/S LB. Channel bends roughly parallel to road on the U/S.23.2 38.1 Y Y N Y Y M N -- Concrete debris on embankments U/S and D/S of bridge. Single pier in the middle of span. Channel bends parallel to road on U/S L-side therefore no LFP exists. Flow impinging on R abut. Dual bridge with A1591.

-- -- -- -- -- -- -- -- -- -- Replaced with A4610.29.0 30.0 N P N Y ? Y Y -- Riprap exists on both banks and abuts. Significant footing exposure on L-pier set. Photos taken.

-- -- -- -- -- -- -- -- -- -- Replaced with A4746.-- -- -- -- -- -- -- -- -- -- Replaced with ? Bridge currently being constructed.-- -- -- -- -- -- -- -- -- -- Replaced with A5539.-- -- -- -- -- -- -- -- -- -- Replaced with I9455-- -- -- -- -- -- -- -- -- -- Removed and replaced with box culvert.

17.9 19.5 N N N Y N M N -- Boulder-size riprap extending down into channel from LB. No protection on both abuts. Levee on LB will confine flow even at Q500.14.7 19.1 N N N P N M Y -- RB and abut have cobble size Riprap . LB unprotected. No flow on L-overbank.16.5 20.8 N N N Y N Y Y NA There is a significant amount of riprap on both banks and abuts. Riprap probably placed in '93. Some debris exists in channel.

2.7 -- Y N N Y N N N -- Some riprap exists on the RB. Road overflow will occur on RFP. Meander bend U/S. Large cutbank on U/S RB.19.3 14.5 N Y N Y N Y Y -- Erosion on LB. R abut and RB has cobbled wall that is slightly undercut. No protection on LB.18.9 18.4 N N N Y N M Y -- Rock is well stacked on both abuts. Sand channel with 4 timber-pile bents. Moderate erosion on LB.19.9 20.0 N P N N N Y Y -- Cobble and boulder-sized riprap on both abutment faces & marginally on banks; deeply incised channel14.5 15.8 N P N Y ? Y Y -- Broken cobble riprap at abutments & embankment aprons; broken concrete slabs on RB U/S & at bridge12.6 15.8 P Y N N N Y Y -- Cobble and boulder-sized riprap on both abutment faces & embankment aprons15.6 15.6 N N N Y Y N -- -- Some local scour evident at both bents; no riprap observed except at toe of RB21.2 21.8 N P N Y N N -- -- Large boulders & cobbles on LB & RB; no riprap observed on abutments20.4 20.4 N N N N N N -- -- Relief structure to A-4520; small, indefinite channel; no riprap observed on abutments20.6 20.2 N N N Y Y N -- -- Boulder-sized riprap on LB both U/S & at bridge; substantial meander bend U/S; debris on U/S face of piers21.1 21.1 N P N N N Y N -- Relief structure to A-4498; stone revetment at both abutments25.1 30.0 P Y N N N N -- -- Vertical abutments with essentially vertical faces; no protection; tall grasses underneath14.9 16.1 N P N P ? Y Y -- LB & L abutment covered with boulders & broken concrete16.3 14.0 P P N Y N M N -- Asphalt & concrete on LOB21.7 20.0 N N N P N Y Y -- Cobble-sized riprap on both abutment faces & on RB under bridge; channel appears to be migrating to R.


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Structure number



Bridge length

Drain-age area[mi2]


COMMENTS AND NOTES

Comment codes:

Notes






Channelized river; large levees on both sides. Broken concrete on RB provided as bank protection. Levees on both FPs are consistently higher than low steel of bridge for both FPs.Backwater is present at this relief bridge. This bridge conveys roughly 9% of the flow from the main bridge F1136. No observable scour.Scattered cobble size riprap on both left and right banks. Slight footing exposure on RB bent. Block cemented cobbling on R abut. No protection on the L abut. Significant debris in U/S channel.Footing exposure on RB bent. Partial footing exposure on LB.. Sand channel with marginal riprap on RB under bridge and U/S approx 50' on RB. Channel is channelized with steep banks.Bent #2 has slight scour holes around columns. U/S banks are lined with marginal riprap. Old abuts exist 100' U/S. Photos taken.U/S banks are lined with marginal riprap. Old abuts exist U/S. Photos takenSquare inlayed cobbles at L abut. Slight evidence of clear water contraction scour at L-setback. No significant local scour. Large scour hole resulting from massive debris pile-up at conical pier. Photos taken.No riprap, small erosional gully through L-setback.Inlayed block cobbles at abuts. Scattered riprap U/S on LB; large concrete chunks and assorted riprap exists on RB U/S.Riprap exists on both banks and on the outer edges of a blowholes on the R-top of bank and L-top of bank.No riprap; mild slumps along both banks.Marginal riprap filling erosional features on RB. Some cobble/boulder size riprap on LB that is placed in erosional features. Significant amount of debris in approach and exit sections.Riprap exists on R & LBs and abuts. Cobble to boulder size riprap extends into channel. Timber-pile constructed spur dikes exist U/S on the RB. 6-foot dia. culvert pipe exists U/S on LB as an outlet.Severe mass wasting on U/S banks; erosional gullys underneath RB. LB covered with riprap and extending into channel. No riprap exists on either abut.Recently placed boulder-size riprap on LB and L abut. Extensive debris existing in the approach. Concrete base connecting caps exist on 1 timber-pile bent which has been replaced with steel H-piles.Small amount of riprap on R & L abuts where erosional gullys exist. Small blowhole exists underneath bridge; photo taken.L abut is fully protected; no riprap on RB or R abut. No riprap on the LB. Qimp will not get onto the RFP.Dual bridge with G538. Concrete debris along both U/S banks, but a blowhole exists underneath bridge. Riprap exists on both abut faces. U/S flow is controlled by U/S bridge G538.Q500 is approx equal to Qimp. Riprap on both banks and abut faces; gravel and cobbles in D/S channel. Cutbanks on U/S and D/S LB. Channel bends roughly parallel to road on the U/S.Concrete debris on embankments U/S and D/S of bridge. Single pier in the middle of span. Channel bends parallel to road on U/S L-side therefore no LFP exists. Flow impinging on R abut. Dual bridge with A1591.Replaced with A4610.Riprap exists on both banks and abuts. Significant footing exposure on L-pier set. Photos taken.Replaced with A4746.Replaced with ? Bridge currently being constructed.Replaced with A5539.Replaced with I9455Removed and replaced with box culvert.Boulder-size riprap extending down into channel from LB. No protection on both abuts. Levee on LB will confine flow even at Q500.RB and abut have cobble size Riprap . LB unprotected. No flow on L-overbank.There is a significant amount of riprap on both banks and abuts. Riprap probably placed in '93. Some debris exists in channel.Some riprap exists on the RB. Road overflow will occur on RFP. Meander bend U/S. Large cutbank on U/S RB.Erosion on LB. R abut and RB has cobbled wall that is slightly undercut. No protection on LB.Rock is well stacked on both abuts. Sand channel with 4 timber-pile bents. Moderate erosion on LB.Cobble and boulder-sized riprap on both abutment faces & marginally on banks; deeply incised channelBroken cobble riprap at abutments & embankment aprons; broken concrete slabs on RB U/S & at bridgeCobble and boulder-sized riprap on both abutment faces & embankment apronsSome local scour evident at both bents; no riprap observed except at toe of RBLarge boulders & cobbles on LB & RB; no riprap observed on abutmentsRelief structure to A-4520; small, indefinite channel; no riprap observed on abutmentsBoulder-sized riprap on LB both U/S & at bridge; substantial meander bend U/S; debris on U/S face of piersRelief structure to A-4498; stone revetment at both abutmentsVertical abutments with essentially vertical faces; no protection; tall grasses underneathLB & L abutment covered with boulders & broken concreteAsphalt & concrete on LOBCobble-sized riprap on both abutment faces & on RB under bridge; channel appears to be migrating to R.


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C D E F G H I BM123456789

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District 01



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]J02031 TOWN BR US 136 GENTRY 1 113 6.49 Q100 3780 3780 REG 11.2 14.1 L 5.3 9.4 6.4 -- 12.8J02041 MOCCASIN CR US 136 GENTRY 1 111 7.40 Q100 4070 4070 REG 11.3 2.3 L 7.2 -- 9.9 -- 12.0J83R 3RD FK PLATTE RI MO 48 GENTRY 1 128 14.5 Q100 5210 5210 REG 10.1 21.3 L 19.8 18.8 7.6 -- 18.8J84R ELM GROVE BR MO 48 GENTRY 1 38 5.34 Q100 3300 2725 BC 14.3 7.0 L -- -- -- -- 36.5N1000 ISLAND CR RT BB GENTRY 1 90 2.78 Q100 2550 2550 REG 8.5 12.3 L 12.4 8.9 5.0 -- 16.1N161 GRANTHAM CR RT B GENTRY 1 202 20.7 Q100 7620 7620 REG 13.9 14.5 L 6.8 -- 7.7 3.9 15.2N162 HICKORY CR RT H GENTRY 1 142 21.7 Q100 8100 8100 REG 15.8 4.3 L -- -- 7.7 -- 12.3N248 LITTLE MUDDY CR RT DD GENTRY 1 911 12.6 Q100 5300 5300 REG 12.0 14.8 L 22.1 17.8 5.5 -- 19.5N515 TURKEY CR RT UU GENTRY 1 135 21.5 Q100 7020 7020 REG 13.1 23.7 L 17.9 -- 6.4 -- 20.4R12 W FK GRAND RI RT O GENTRY 1 339 304 Q100 28700 21000 BC 13.5 0.0 L -- 14.3 10.5 6.4 16.2S00951 EVONA CR RT A GENTRY 1 85 5.25 Q100 3510 3000 BC 9.3 2.9 L 16.4 15.4 3.2 -- 16.0S385 BRUSHY CR RT T GENTRY 1 83 7.81 Q100 4110 4110 REG 11.6 9.1 L 18.1 20.1 6.1 -- 20.0S386 FITZGERALD BR RT T GENTRY 1 48 3.17 Q100 2680 2680 REG 12.2 10.6 L -- -- -- -- 16.6T01951 WALNUT FK RT E GENTRY 1 122 18.0 Q100 7080 7080 REG 14.0 5.3 L 20.3 20.1 12.7 -- 16.1T332 W FK GRAND RI RT H GENTRY 1 341 502 Q100 38500 29600 BC 19.0 0.0 L -- -- 26.7 12.3 14.1X725 LONG BR RT H GENTRY 1 101 12.4 Q100 5270 5270 REG 12.2 15.0 L 19.9 17.2 3.2 -- 19.0X848 ISLAND CR RT M GENTRY 1 152 38.1 Q100 9860 9860 REG 17.2 13.3 L -- -- 3.9 -- 18.8A2402 E FK BIG CR RT00N HARRISON 1 255 46.2 Q100 9480 9480 REG 11.6 6.6 L 11.7 11.4 8.5 4.1 17.4F157R WHITE OAK CR US136 HARRISON 1 121 12.6 Q100 4560 4560 REG 9.7 -- -- -- -- -- -- --H753 BIG CR US069 HARRISON 1 208 306 Q100 29700 25245 EST 21.9 13.4 L -- -- 17.4 -- 20.9H789 BIG CR OF US069 HARRISON 1 89 306 Q100 29700 4455 EST 11.6 0.0 L -- -- 7.6 7.6 37.7K165 TRAIL CR US136 HARRISON 1 213 29.5 Q100 9060 9060 REG 10.8 3.0 L -- -- 7.6 7.6 25.1K168 CYPRESS CR MO013 HARRISON 1 223 20.5 Q100 7100 7100 REG 9.5 6.1 L 12.0 11.6 7.6 -- 15.6K756 SAMPSON CR US136 HARRISON 1 128 9.8 Q100 4230 4230 REG 10.2 19.2 L -- -- 7.6 -- 21.5L631 W FK BIG CR RT00W HARRISON 1 194 189.00 Q100 20400 20400 REG 18.3 17.6 L -- -- 7.7 -- 21.4N373 COAL CR RT00V HARRISON 1 147 14.9 Q100 6230 6230 REG 14.0 2.1 L -- -- 3.9 -- 13.0N738 SHAIN CR RT0KK HARRISON 1 107 14.6 Q100 4600 4600 REG 12.5 25.0 L -- -- 4.2 -- 18.5P176 PANTHER CR RT00F HARRISON 1 89 8.55 Q100 4510 4510 REG 11.6 16.5 L -- -- 4.2 -- 15.4P576 WHITE OAK CR RT00P HARRISON 1 125 32.1 Q100 8420 8420 REG 14.6 25.1 L -- -- 3.9 -- 21.3P74 BRUSH CR RT00N HARRISON 1 143 18.2 Q100 6540 6540 REG 12.5 6.8 L -- -- 4.7 -- 12.3P76 INDIAN CR RT00O HARRISON 1 166 23.3 Q100 7740 7740 REG 15.8 4.2 L -- -- 12.3 8.6 13.9P78 DONABY CR RT00O HARRISON 1 101 7.06 Q100 3790 3790 REG 12.7 2.0 L -- -- 5.5 -- --R75 PANTHER CR RT0EE HARRISON 1 102 7.2 Q100 4170 4170 REG 10.7 14.3 L -- -- 3.9 -- 15.9S295 PANTHER CR RT00B HARRISON 1 101 1.22 Q100 921 921 REG 5.5 0.7 L -- -- 4.5 -- 5.6S298 DITCH RT00B HARRISON 1 34 2.64 Q100 2300 1805 BC 11.9 4.7 L -- -- -- -- 25.9S299 DITCH RT00B HARRISON 1 33 0.25 Q100 752 614 BC 6.3 4.7 L -- -- -- -- 20.9H704 SQUAW CR MO118 HOLT 1 170 63.5 Q100 13000 13000 REG 16.2 -- -- -- -- -- -- --H705 TODD DD MO118 HOLT 1 129 63.5 Q100 2280 2280 REG 6.1 0.8 L 9.4 8.3 11.5 3.8 18.6L197 NICHOLS CR RT00B HOLT 1 113 9.46 Q100 4520 4520 REG 14.4 14.5 L -- -- 8.6 -- 13.3N722 KIMSEY CR US159 HOLT 1 93 6.64 Q100 3610 3610 REG 12.4 2.1 L -- -- 3.9 -- 12.3P729 M BR SQUAW CR RT00C HOLT 1 179 12.1 Q100 5970 5970 REG 13.0 3.9 L -- -- 10.5 -- 12.6S183 NICHOLS CR RT00B HOLT 1 157 11.1 Q100 5430 5430 REG 13.2 1.8 L -- -- 9.6 3.9 12.7T104 BIG TARKIO CR MO111 HOLT 1 180 502 Q100 36200 36200 REG 26.6 -- -- -- -- -- -- --T230 GRAND AVENUE CR MO111 HOLT 1 27 1.98 Q100 2400 2400 REG 16.2 -- -- -- -- -- -- --X265 WILDCAT CR RT00N HOLT 1 95 8.39 Q100 4540 4540 REG 13.2 0.0 L -- -- 4.7 -- 12.7


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Bridge length

Drain-age area[mi2]

J02031 TOWN BR US 136 GENTRY 1 113 6.49J02041 MOCCASIN CR US 136 GENTRY 1 111 7.40J83R 3RD FK PLATTE RI MO 48 GENTRY 1 128 14.5J84R ELM GROVE BR MO 48 GENTRY 1 38 5.34N1000 ISLAND CR RT BB GENTRY 1 90 2.78N161 GRANTHAM CR RT B GENTRY 1 202 20.7N162 HICKORY CR RT H GENTRY 1 142 21.7N248 LITTLE MUDDY CR RT DD GENTRY 1 911 12.6N515 TURKEY CR RT UU GENTRY 1 135 21.5R12 W FK GRAND RI RT O GENTRY 1 339 304S00951 EVONA CR RT A GENTRY 1 85 5.25S385 BRUSHY CR RT T GENTRY 1 83 7.81S386 FITZGERALD BR RT T GENTRY 1 48 3.17T01951 WALNUT FK RT E GENTRY 1 122 18.0T332 W FK GRAND RI RT H GENTRY 1 341 502X725 LONG BR RT H GENTRY 1 101 12.4X848 ISLAND CR RT M GENTRY 1 152 38.1A2402 E FK BIG CR RT00N HARRISON 1 255 46.2F157R WHITE OAK CR US136 HARRISON 1 121 12.6H753 BIG CR US069 HARRISON 1 208 306H789 BIG CR OF US069 HARRISON 1 89 306K165 TRAIL CR US136 HARRISON 1 213 29.5K168 CYPRESS CR MO013 HARRISON 1 223 20.5K756 SAMPSON CR US136 HARRISON 1 128 9.8L631 W FK BIG CR RT00W HARRISON 1 194 189.00N373 COAL CR RT00V HARRISON 1 147 14.9N738 SHAIN CR RT0KK HARRISON 1 107 14.6P176 PANTHER CR RT00F HARRISON 1 89 8.55P576 WHITE OAK CR RT00P HARRISON 1 125 32.1P74 BRUSH CR RT00N HARRISON 1 143 18.2P76 INDIAN CR RT00O HARRISON 1 166 23.3P78 DONABY CR RT00O HARRISON 1 101 7.06R75 PANTHER CR RT0EE HARRISON 1 102 7.2S295 PANTHER CR RT00B HARRISON 1 101 1.22S298 DITCH RT00B HARRISON 1 34 2.64S299 DITCH RT00B HARRISON 1 33 0.25H704 SQUAW CR MO118 HOLT 1 170 63.5H705 TODD DD MO118 HOLT 1 129 63.5L197 NICHOLS CR RT00B HOLT 1 113 9.46N722 KIMSEY CR US159 HOLT 1 93 6.64P729 M BR SQUAW CR RT00C HOLT 1 179 12.1S183 NICHOLS CR RT00B HOLT 1 157 11.1T104 BIG TARKIO CR MO111 HOLT 1 180 502T230 GRAND AVENUE CR MO111 HOLT 1 27 1.98X265 WILDCAT CR RT00N HOLT 1 95 8.39



RightType

TotalMethod


Left Right



Maximum pier scour

Through bridge

Main chan-

nel

Over-bank


[ft3/s] [ft3/s]15.5 Q500 5130 5130 REG 12.5 16.8 L 8.9 14.8 6.4 --12.1 Q500 5520 5520 REG 13.0 5.5 L 11.6 -- 9.9 --17.9 Q500 7080 7080 REG 12.2 26.0 L 24.2 23.2 7.6 --38.4 Qimp 2150 2150 BC 12.4 10.4 L -- -- -- --11.3 Q500 3460 3460 REG 10.0 17.4 L 16.3 14.8 5.1 --15.2 Q500 10200 10200 REG 15.0 16.6 L 11.2 -- 7.7 3.916.2 Q500 10800 10800 REG 18.2 9.9 L -- -- 7.7 --19.1 Q500 7170 7170 REG 14.4 17.7 L 27.0 22.4 5.5 --20.1 Q500 9460 9460 REG 15.0 26.9 L 22.5 12.6 6.4 --16.2 Qimp 13300 13300 BC 10.3 0.0 L -- 6.9 10.4 6.414.1 Qimp 2490 2490 BC 8.3 3.7 L 14.8 13.2 3.2 --20.5 Q500 5580 5580 REG 14.0 12.1 L 22.2 24.4 6.1 --19.5 Q500 3650 3650 REG 14.8 17.6 L -- -- -- --16.5 Q500 9480 9480 REG 16.2 12.1 L 25.2 25.0 12.8 --14.9 Qimp 20700 20700 BC 15.6 1.9 L -- -- 26.6 12.319.5 Q500 7120 7120 REG 14.1 17.4 L 24.5 21.4 3.2 --18.8 Q500 13200 13200 REG 19.9 17.8 L -- 13.2 3.9 --12.3 Q500 12800 12800 REG 13.1 8.6 L 15.7 15.5 8.5 4.1

-- Q500 6230 6230 REG 11.7 -- -- -- -- -- --19.5 Q500 39100 33235 EST 25.2 21.7 L -- -- 17.5 --37.4 Q500 39100 5865 EST 13.5 0.0 L -- -- 7.7 7.719.8 Q500 12100 12100 REG 12.8 15.8 L -- -- 7.7 7.713.1 Q500 9540 9540 REG 11.4 12.9 L 15.8 15.6 7.6 --24.4 Q500 5770 5770 REG 12.0 25.8 L -- -- 7.6 --21.9 Q500 27200 27200 REG 21.6 29.3 L -- -- 7.7 --13.0 Q500 8370 8370 REG 16.1 2.4 L -- -- 3.9 --18.5 Q500 6310 6310 REG 13.6 29.6 L -- -- 4.3 --15.3 Q500 6090 6090 REG 13.9 22.7 L -- -- 4.2 --21.6 Q500 11300 11300 REG 16.7 30.4 L -- -- 3.9 --12.5 Q500 8810 8810 REG 14.5 10.8 L -- -- 4.7 --13.9 Q500 10400 10400 REG 17.9 4.8 L -- -- 12.3 8.6

-- Q500 5160 5160 REG 14.0 2.1 L -- -- 5.5 --16.1 Q500 5640 5640 REG 12.5 19.0 L -- -- 3.9 --

5.6 Q500 1320 1320 REG 5.7 1.6 L -- -- 4.5 --29.7 Qimp 1310 1310 BC 9.8 5.4 L -- -- -- --24.3 Qimp 476 476 BC 5.4 5.5 L -- -- -- --

-- Q500 17400 17400 REG 19.3 -- -- -- -- -- --17.8 Qimp 2280 2280 BC 6.1 0.8 L 9.4 8.3 11.5 3.819.5 Q500 6130 6130 REG 16.7 20.5 L -- -- 8.6 --12.3 Q500 4920 4920 REG 14.5 2.4 L -- -- 3.9 --12.6 Q500 8000 8000 REG 15.2 4.5 L -- -- 10.5 --12.7 Q500 7300 7300 REG 15.0 2.0 L -- -- 9.6 3.9

-- Q500 47800 47800 REG 31.5 -- -- -- -- -- ---- Q500 3250 3250 REG 19.5 -- -- -- -- -- --

12.7 Q500 6130 6130 REG 14.9 0.0 L -- -- 4.8 --


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document.xls

District 01


Route County b[ft]



Structure number



Bridge length

Drain-age area[mi2]



OT

Abutment scour

PF AR

Left Right







15.4 18.1 N P N N Y Y Y -- Large boulders on LB & some on RB; footing exposure at L bent; debris in U/S channel15.2 15.4 N P N Y Y Y Y -- Large concrete chunks on LB & RB; stone revetment on L & R abutments; massive debris at R bent; footing exposure at both bents20.9 20.4 P Y N N N Y Y -- Boulder-sized riprap on both abutments31.6 35.4 P Y N N N N -- -- Vertical abutments with essentially vertical faces; no protection18.9 14.2 P Y N N N Y Y -- Substantial riprap at both banks & abutments - well protected17.2 17.2 P P N Y Y N -- Y U/S timber dikes used for debris catchment & channel training; massive debris at RB; severe cutbank on U/S RB; major meander bend U/S16.8 20.0 Y Y N Y N M N -- Small amount of riprap at R abutment; deeply incised channel; confluence with Grand River approx 2 bridge lengths D/S; overflow area on L side21.7 21.4 P Y N N N Y N -- Small riprap on both abutment faces22.1 21.8 P P N Y Y N -- -- Footing exposure at R bent; large blowhole on U/S RB; large riprap on LB, none on abutments

9.0 9.0 Y Y N Y N Y N -- Large cobbles on L abutment, none on R abutment; channel divided U/S; potential overflow areas on both sides14.2 12.2 P Y N N N N -- -- Broken asphalt on RB at R bent connecting footers22.0 22.5 P Y N N N N -- -- No riprap; U/S debris jam 1 bridge length U/S20.2 21.7 P Y N N N Y N -- Stone revetment on LB & abutment; none on R side19.7 19.9 P P N N N N -- -- No riprap observed; substantial debris pile in channel on bents; double pile replacement bents

3.5 5.5 Y P N Y Y Y Y Y Bank restabilization on U/S LB; overflow areas on both sides; boulder-sized riprap on both abutments; debris in D/S chan20.9 21.2 N Y N N Y N -- -- Riprap cobbles on LB under bridge; deeply incised lateral on U/S L21.4 21.4 N N N N N Y Y -- Severe bank erosion (possibly scour induced); riprap on both abutments and banks19.7 15.1 N N N Y N Y Y -- Riprap on both abuts over entire abut apron. Large concrete chunks on RB. Stream is somewhat channelized consisting on mostly sand.

-- -- -- -- -- -- -- -- -- -- This site is well protected. Large boulders placed in '93. Small channel with a calculated Q500 well below low steel. Photos taken.23.9 22.5 N N N Y N M N -- L abut is partially protected. Bridge is located on an extreme meander bend.40.8 40.5 N N N N Y Y Y -- Inlayed block cobbling on both abuts. Abuts exposed underneath. Contraction scour very evident. Photos taken.29.8 25.6 N N N Y N M Y -- Sand channel; riprap exists as concrete chunks on LB. R & L abuts have inlayed block cobbling. Massive debris pile exists approx 50' U/S. Scattered stumps and debris throughout channel bottom.19.1 16.7 N N N Y Y Y N -- Cobbling on both abut faces. Riprap on LB to arrest lateral migration and protect piers. Riprap on U/S LB for same reason. Large erosion gullies on setbacks. Meander bend U/S, slumped banks on D/S LB.26.4 29.0 N N N Y N Y Y -- Inlayed cobbling at each abut. Erosional features exist at both RB & LB. No observable local scour. Bridge is on a significant tilt.24.3 24.7 N N N Y N M Y -- U/S LB consists of large concrete chunks of riprap. RB is not well protected. Both R & L abuts are protected.17.0 17.0 N N N Y N N N -- No protection. Erosional features on abuts particularly on RB and R abut. Very deeply incised channel.20.0 20.0 N N N Y N M N -- Large concrete chunks on RB. Both abuts are not protected nor is the LB. Significant cutbanks for rather small channel.19.5 19.5 N N N Y N M N -- Exposed concrete base connecting caps of steel H-piles to pre-existing timber sub-piles. Marginal protection of boulder-size riprap on RB. No protection on LB. No protection of R & L timber abuts.23.2 23.5 N N N Y N M Y -- Abuts well protected with concreted riprap. Boulder to cobble-size riprap exists down into channel on RB. Steel H-piles exist on RB with concrete connecting caps to pre-existing timber sub-piles.16.1 16.3 N N N Y N M N -- Boulder-size riprap placed in L-cutbank underneath bridge and on LB above cutbank. Both abuts and RB are not protected. Sand channel relatively flat. Riprap also placed in LB drainage ditch.17.9 17.9 N N N Y N Y Y -- Cutbanks U/S heavily lined with riprap. Sand channel. Large concrete chunks.

-- -- N N N Y N N N -- Old abut exists upon LB. Loess exists on RB making banks near vertical. Channel deeply incised.19.3 19.4 N N N Y N Y Y -- Cone shaped piers. Small local scour present approx 2 feet in diameter. Partial cobble retaining wall on both channel banks underneath bridge. Both abuts protected with cobble size riprap.

6.3 6.3 N N N Y Y N N -- No riprap; near vertical banks. Concrete connecting caps on all H-piles joining timber-subpiles. Small Q's. No LFP flow.17.1 22.6 Y Y N Y N Y Y -- Large concrete slabs lining both L & RBs. Abuts are vertical timber structures overlying a pre-existing concrete vertical abut.18.5 21.9 Y Y N P N N N -- Small drainage ditch; somewhat channelized U/S. Pressure flow occurs at Q100. No protection on banks or abuts.

-- -- -- -- -- -- -- -- -- -- Dredged and confined channel where levees are approx 15' higher than the bridge deck. Levees are discontinuous at bridge allowing relief around bridge and overtopping either side of road. Photos taken.18.5 17.7 Y Y N N N N -- -- Designed as an overflow bridge; bridge is unskewed but main span is skewed by 35 deg to match channel.17.5 21.5 N N N Y N M Y -- Poured concrete exists on R & L abuts and R & LBs. Large boulders exist at R-bent. Very small deeply incised channel.16.3 16.3 N N N Y N M N -- Poured concrete exists in erosional gullys on both banks and abuts. Minor slumping exists just U/S on LB. Channel is somewhat channelized and deeply incised. LFP is well above bridge deck.16.8 16.8 N N N Y N M N -- Very deep channel; FPs are cornfields. Channelized with '93 riprap on L & R abuts and banks.15.9 15.9 N N N Y ? M Y -- Fairly severe erosional gullys underneath bridge on RB. Very small amount of local pier scour on connecting cap of associated steel H-piles. Will not get out onto FPs. Deep channel.

-- -- -- -- -- -- -- -- -- -- Completely channelized with confining levees that are an elevation higher than the road. No evident scour or mass wasting. MO River FP.-- -- -- -- -- -- -- -- -- -- Vertical walls ; no piers. Walls continue U/S. Slight abut footing exposure evident on L abut; however, abuts appear to be founded on bedrock.

15.8 15.8 N N N Y ? M Y -- Riprap deposited in '93 where L abut and bank are experiencing mass wasting. Riprap covers LB and abut down into channel. Q500 does not get out onto either FP.


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District 01


Route County b[ft]



Structure number



Bridge length

Drain-age area[mi2]


COMMENTS AND NOTES

Comment codes:

Notes






Large boulders on LB & some on RB; footing exposure at L bent; debris in U/S channelLarge concrete chunks on LB & RB; stone revetment on L & R abutments; massive debris at R bent; footing exposure at both bentsBoulder-sized riprap on both abutmentsVertical abutments with essentially vertical faces; no protectionSubstantial riprap at both banks & abutments - well protectedU/S timber dikes used for debris catchment & channel training; massive debris at RB; severe cutbank on U/S RB; major meander bend U/SSmall amount of riprap at R abutment; deeply incised channel; confluence with Grand River approx 2 bridge lengths D/S; overflow area on L sideSmall riprap on both abutment facesFooting exposure at R bent; large blowhole on U/S RB; large riprap on LB, none on abutmentsLarge cobbles on L abutment, none on R abutment; channel divided U/S; potential overflow areas on both sidesBroken asphalt on RB at R bent connecting footersNo riprap; U/S debris jam 1 bridge length U/SStone revetment on LB & abutment; none on R sideNo riprap observed; substantial debris pile in channel on bents; double pile replacement bentsBank restabilization on U/S LB; overflow areas on both sides; boulder-sized riprap on both abutments; debris in D/S chanRiprap cobbles on LB under bridge; deeply incised lateral on U/S LSevere bank erosion (possibly scour induced); riprap on both abutments and banksRiprap on both abuts over entire abut apron. Large concrete chunks on RB. Stream is somewhat channelized consisting on mostly sand.This site is well protected. Large boulders placed in '93. Small channel with a calculated Q500 well below low steel. Photos taken.L abut is partially protected. Bridge is located on an extreme meander bend.Inlayed block cobbling on both abuts. Abuts exposed underneath. Contraction scour very evident. Photos taken.Sand channel; riprap exists as concrete chunks on LB. R & L abuts have inlayed block cobbling. Massive debris pile exists approx 50' U/S. Scattered stumps and debris throughout channel bottom.Cobbling on both abut faces. Riprap on LB to arrest lateral migration and protect piers. Riprap on U/S LB for same reason. Large erosion gullies on setbacks. Meander bend U/S, slumped banks on D/S LB.Inlayed cobbling at each abut. Erosional features exist at both RB & LB. No observable local scour. Bridge is on a significant tilt.U/S LB consists of large concrete chunks of riprap. RB is not well protected. Both R & L abuts are protected.No protection. Erosional features on abuts particularly on RB and R abut. Very deeply incised channel.Large concrete chunks on RB. Both abuts are not protected nor is the LB. Significant cutbanks for rather small channel.Exposed concrete base connecting caps of steel H-piles to pre-existing timber sub-piles. Marginal protection of boulder-size riprap on RB. No protection on LB. No protection of R & L timber abuts.Abuts well protected with concreted riprap. Boulder to cobble-size riprap exists down into channel on RB. Steel H-piles exist on RB with concrete connecting caps to pre-existing timber sub-piles.Boulder-size riprap placed in L-cutbank underneath bridge and on LB above cutbank. Both abuts and RB are not protected. Sand channel relatively flat. Riprap also placed in LB drainage ditch.Cutbanks U/S heavily lined with riprap. Sand channel. Large concrete chunks.Old abut exists upon LB. Loess exists on RB making banks near vertical. Channel deeply incised.Cone shaped piers. Small local scour present approx 2 feet in diameter. Partial cobble retaining wall on both channel banks underneath bridge. Both abuts protected with cobble size riprap.No riprap; near vertical banks. Concrete connecting caps on all H-piles joining timber-subpiles. Small Q's. No LFP flow.Large concrete slabs lining both L & RBs. Abuts are vertical timber structures overlying a pre-existing concrete vertical abut.Small drainage ditch; somewhat channelized U/S. Pressure flow occurs at Q100. No protection on banks or abuts.Dredged and confined channel where levees are approx 15' higher than the bridge deck. Levees are discontinuous at bridge allowing relief around bridge and overtopping either side of road. Photos taken.Designed as an overflow bridge; bridge is unskewed but main span is skewed by 35 deg to match channel.Poured concrete exists on R & L abuts and R & LBs. Large boulders exist at R-bent. Very small deeply incised channel.Poured concrete exists in erosional gullys on both banks and abuts. Minor slumping exists just U/S on LB. Channel is somewhat channelized and deeply incised. LFP is well above bridge deck.Very deep channel; FPs are cornfields. Channelized with '93 riprap on L & R abuts and banks.Fairly severe erosional gullys underneath bridge on RB. Very small amount of local pier scour on connecting cap of associated steel H-piles. Will not get out onto FPs. Deep channel.Completely channelized with confining levees that are an elevation higher than the road. No evident scour or mass wasting. MO River FP.Vertical walls ; no piers. Walls continue U/S. Slight abut footing exposure evident on L abut; however, abuts appear to be founded on bedrock.Riprap deposited in '93 where L abut and bank are experiencing mass wasting. Riprap covers LB and abut down into channel. Q500 does not get out onto either FP.


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Structure number



Bridge length

Drain-age area[mi2]




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Structure number



Bridge length

Drain-age area[mi2]



C D E F G H I BM123456789

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District 01



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A1379 MILL CR RT00C NODAWAY 1 203 61.5 Q100 13000 13000 REG 14.5 0.0 L -- -- 8.5 -- 13.3A1386 LONG BR CR RT00M NODAWAY 1 167 45.4 Q100 8620 8620 REG 14.2 0.0 L -- -- 7.7 -- 14.7A1387 PLATTE RI RT00M NODAWAY 1 552 523 Q100 35000 35000 REG 13.2 -- -- -- -- -- -- --A4468 NODAWAY RI US071 NODAWAY 1 427 1190 Q100 64300 49450 BC 21.5 10.0 L -- -- 18.0 5.2 21.1A4469 CLEAR CR US071 NODAWAY 1 196 56.7 Q100 13700 13700 REG 15.3 11.3 L -- -- 8.6 -- 16.1A4570 MILL CR US136 NODAWAY 1 314 85.1 Q100 15800 15800 REG 13.3 17.1 L -- 11.5 8.6 3.2 19.5J794 WILDCAT CR US136 NODAWAY 1 170 15.3 Q100 6040 6040 REG 10.8 0.0 L -- 15.5 7.6 7.6 12.1K888 SLEEK CR RT00J NODAWAY 1 65 2.03 Q100 2160 2160 REG 10.3 19.4 L -- -- 10.6 -- 25.1L168 HONEY CR MO246 NODAWAY 1 125 63.4 Q100 9830 9830 REG 17.9 20.8 L -- -- 3.9 -- 21.3L186 BRUSHY BR MO246 NODAWAY 1 89 8.54 Q100 3740 3740 REG 12.8 0.0 L -- -- 3.9 -- 12.5N39 LONG BR RT0VV NODAWAY 1 125 36.8 Q100 7750 7750 REG 14.5 16.5 L -- -- 3.9 -- 22.1P567 JENKINS CR RT00Y NODAWAY 1 131 25 Q100 8470 8470 REG 17.0 11.8 L -- -- 13.4 -- 17.3P979 HONEY CR RT0NN NODAWAY 1 164 75.3 Q100 10900 10900 REG 15.7 8.2 L 17.5 -- 7.7 -- 13.8R14 PLATTE RI RT0VV NODAWAY 1 317 510 Q100 37600 37600 REG 20.2 15.1 L 33.0 -- 18.0 4.6 22.5R192 S FK CLEAR CR RT0FF NODAWAY 1 125 16 Q100 6260 6260 REG 15.9 4.0 L -- -- 7.3 -- 14.0R89 ONE HUNDRED TWO RI RT00U NODAWAY 1 303 534.0 Q100 38800 33100 BC 18.6 4.9 L 23.2 -- 8.7 3.3 19.8S109 WHITE CLOUD CR RT00A NODAWAY 1 163 59.8 Q100 10200 10200 REG 13.1 -- -- -- -- -- -- --S186 JENKINS CR RT00A NODAWAY 1 125 12.2 Q100 6170 6170 REG 15.2 5.3 L -- -- 7.8 -- 13.6S919 BIG SLOUGH MO046 NODAWAY 1 84 6.3 Q100 4150 4150 REG 13.7 6.2 L -- -- 18.0 -- 17.8S921 STREAM MO046 NODAWAY 1 94 7.76 Q100 4010 4010 REG 11.4 21.2 L -- -- 3.2 -- 35.5T44 FLORIDA CR MO113 NODAWAY 1 167 22.3 Q100 7170 7170 REG 10.4 -- -- -- -- -- -- --T50 SAND CR MO113 NODAWAY 1 142 16.2 Q100 6260 6260 REG 12.2 0.8 L -- -- 8.8 8.8 22.2T579 MOZINGO BR RT00F NODAWAY 1 66 26.4 Q100 7600 4930 BC 14.7 5.9 L -- -- 4.6 -- 19.3X671 SAM CR RT00B NODAWAY 1 97 420 Q100 35200 35200 REG 38.0 -- -- -- -- -- -- --A4377 M FK GRAND RI MO046 WORTH 1 265 79 Q100 15000 15000 REG 14.1 0.6 L -- -- 9.5 -- 13.1A448 M FK GRAND RI US169 WORTH 1 364 83.9 Q100 15600 15600 REG 14.5 1.4 L -- -- 8.6 -- 13.3J24 MARLOWE BR MO046 WORTH 1 128 13.5 Q100 5570 5570 REG 14.8 1.9 L -- -- 7.7 -- 13.4N355 L MUDDY CR RT00M WORTH 1 102 12.1 Q100 5890 5890 REG 13.3 14.2 L -- -- 6.3 -- 18.9N516 M FK GRAND RI RT0PP WORTH 1 143 52.9 Q100 11100 11100 REG 14.9 -- -- -- -- -- -- --S50 BRANCH RT A WORTH 1 29 0.53 Q100 1200 846 BC 9.0 4.1 L -- -- -- -- 23.7T898 BEAR CR RT00W WORTH 1 96 7.77 Q100 3550 3550 REG 12.0 16.5 L -- -- 3.9 -- 12.1X112 LOTTS CR RT00T WORTH 1 114 0.47 Q100 1080 1080 REG 6.0 0.3 L -- -- 7.0 -- 10.9


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District 01


Route County b[ft]



Structure number



Bridge length

Drain-age area[mi2]

A1379 MILL CR RT00C NODAWAY 1 203 61.5A1386 LONG BR CR RT00M NODAWAY 1 167 45.4A1387 PLATTE RI RT00M NODAWAY 1 552 523A4468 NODAWAY RI US071 NODAWAY 1 427 1190A4469 CLEAR CR US071 NODAWAY 1 196 56.7A4570 MILL CR US136 NODAWAY 1 314 85.1J794 WILDCAT CR US136 NODAWAY 1 170 15.3K888 SLEEK CR RT00J NODAWAY 1 65 2.03L168 HONEY CR MO246 NODAWAY 1 125 63.4L186 BRUSHY BR MO246 NODAWAY 1 89 8.54N39 LONG BR RT0VV NODAWAY 1 125 36.8P567 JENKINS CR RT00Y NODAWAY 1 131 25P979 HONEY CR RT0NN NODAWAY 1 164 75.3R14 PLATTE RI RT0VV NODAWAY 1 317 510R192 S FK CLEAR CR RT0FF NODAWAY 1 125 16R89 ONE HUNDRED TWO RI RT00U NODAWAY 1 303 534.0S109 WHITE CLOUD CR RT00A NODAWAY 1 163 59.8S186 JENKINS CR RT00A NODAWAY 1 125 12.2S919 BIG SLOUGH MO046 NODAWAY 1 84 6.3S921 STREAM MO046 NODAWAY 1 94 7.76T44 FLORIDA CR MO113 NODAWAY 1 167 22.3T50 SAND CR MO113 NODAWAY 1 142 16.2T579 MOZINGO BR RT00F NODAWAY 1 66 26.4X671 SAM CR RT00B NODAWAY 1 97 420A4377 M FK GRAND RI MO046 WORTH 1 265 79A448 M FK GRAND RI US169 WORTH 1 364 83.9J24 MARLOWE BR MO046 WORTH 1 128 13.5N355 L MUDDY CR RT00M WORTH 1 102 12.1N516 M FK GRAND RI RT0PP WORTH 1 143 52.9S50 BRANCH RT A WORTH 1 29 0.53T898 BEAR CR RT00W WORTH 1 96 7.77X112 LOTTS CR RT00T WORTH 1 114 0.47



RightType

TotalMethod


Left Right



Maximum pier scour

Through bridge

Main chan-

nel

Over-bank


[ft3/s] [ft3/s]13.3 Q500 17400 17400 REG 17.2 6.1 L -- -- 8.5 --13.1 Q500 11700 11700 REG 15.7 9.8 L -- -- 7.7 --

-- Q500 46400 46400 REG 15.7 -- -- -- -- -- --23.9 Qimp 34600 34600 BC 17.3 9.0 L -- -- 17.9 5.218.9 Q500 18100 18100 REG 17.3 15.7 L -- -- 8.7 --15.7 Q500 21000 21000 REG 14.7 18.9 L 15.2 16.3 8.6 3.311.5 Q500 8140 8140 REG 12.8 7.4 L -- 19.2 7.7 7.725.1 Q500 2950 2950 REG 11.0 22.1 L -- -- 10.6 --20.2 Q500 13400 13400 REG 19.8 25.4 L -- -- 3.9 --12.5 Q500 5120 5120 REG 15.1 0.0 L -- -- 3.9 --19.3 Q500 10500 10500 REG 17.0 19.6 L -- -- 4.0 --16.1 Q500 11300 11300 REG 19.6 18.1 L -- -- 13.4 --18.1 Q500 14800 14800 REG 17.7 17.1 L 24.3 -- 7.7 --19.6 Q500 49500 49500 REG 23.0 18.6 L 43.7 -- 18.1 4.614.0 Q500 8430 8430 REG 18.1 4.5 L -- -- 7.3 --12.3 Qimp 27400 27400 BC 16.4 6.1 L 25.9 -- 8.6 3.3

-- Q500 13800 13800 REG 15.8 -- -- -- -- -- --19.7 Q500 8250 8250 REG 17.1 16.5 L -- -- 7.8 --15.0 Q500 5590 5590 REG 15.9 11.0 L -- -- 18.1 --28.5 Q500 5450 5450 REG 13.7 33.1 L -- -- 3.2 --

-- Q500 9660 9660 REG 12.5 -- -- -- -- -- --22.5 Q500 8430 8430 REG 14.2 12.3 L -- 10.8 8.8 8.820.3 Qimp 2260 2260 BC 9.2 2.7 L -- -- 4.5 --

-- Q500 46300 46300 REG 44.8 -- -- -- -- -- --13.1 Q500 20000 20000 REG 15.6 0.6 L -- -- 9.6 --13.3 Q500 20700 20700 REG 16.1 1.5 L -- -- 8.6 --13.4 Q500 7520 7520 REG 16.7 2.1 L -- -- 7.7 --17.3 Q500 7900 7900 REG 15.0 12.0 L -- -- 6.4 --

-- Q500 14900 14900 REG 17.9 -- -- -- -- -- --24.8 Qimp 492 492 BC 6.5 5.3 L -- -- -- --17.9 Q500 4870 4870 REG 13.4 19.6 L -- -- 3.9 --10.9 Q500 1470 1470 REG 7.1 0.4 L -- -- 7.0 --


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District 01


Route County b[ft]



Structure number



Bridge length

Drain-age area[mi2]



OT

Abutment scour

PF AR

Left Right







18.2 18.2 N N N Y N M Y -- LB has recently deposited riprap where considerable mass wasting of banks has occurred near L abut.17.5 15.9 N N N Y ? M Y -- Riprap has recently been placed in slump that exists on RB underneath bridge. Scarce riprap located on LB. Cutbanks significant both U/S and D/S.

-- -- -- -- -- -- -- -- -- -- Both abuts are well protected. No signs of contraction scour or mass wasting under bridge. Cutbanks are moderate U/S. Small erosive gully exists on RB.15.4 20.2 Y Y N Y ? M Y -- Riprap exists at L abut. Several debris piles exist U/S in channel.19.6 20.9 N N N Y N M Y -- Riprap exists on R abut. Riprap is scarce on the L abut. Significant slump exists U/S on LB. New riprap has filled in U/S slump. Significant cutbank exists on the LB U/S and at bridge.20.8 18.4 N N N Y N Y Y -- Recently deposited riprap on both abut faces.15.8 15.2 N N N Y Y Y Y -- Cobbling exists on both abuts. Footing exposure evident. Severe mass wasting on banks. Scattered riprap on LB and over inlayed cobbling. Poured concrete existing on LB. Old grader blades on U/S LB.27.4 27.4 N N N Y N Y Y -- Recent riprap deposited in '93 on both abuts and banks and into channel. Cutbanks are well defined U/S and D/S. Some debris in channel.23.1 21.9 N N N Y N M N -- Small amount of riprap U/S RB. Large chunks of concrete exist on LB in erosional ditch along roadway. Cutbanks are significant U/S and D/S.16.8 16.8 N N N Y N N N -- Some undercutting evident of both abuts. No protection. Significant debris in the channel.24.3 21.5 N N N Y N N N -- No protection. No apparent significant cutbanks or contraction scour evident.20.7 20.1 N N N Y ? M Y -- Completely covered with riprap. Sharp meander U/S.17.7 20.5 N N N Y N M Y -- Boulder size riprap exists on RB and further into channel. Abuts are not protected. Significant cutbanks U/S and D/S.25.0 22.1 N P N Y N M Y -- RB has relatively new boulder size riprap extending down into channel. Significant U/S debris on RB.18.1 18.1 N N N Y Y N N -- Significant bank instability and slope failure at the U/S face and around piers. Deeply incised channel. Considering channel configuration U/S, the RB is susceptible to further contraction scour where extensive mass wasting has occurred.16.3 4.7 P N N Y N M N -- R abut has substantial riprap that extends on into the channel and on the U/S apron.

-- -- -- -- -- -- -- -- -- -- Bridge is presently being replaced. Photos taken.17.2 21.4 N N N Y N M Y -- Riprap on R abut and bank. Recent riprap deposited in roadway ditch perpendicular in approach. New riprap exists furthermore U/S on apron extending down into channel. Small amount of debris in channel.20.6 19.3 N N P Y Y M N -- Debris accumulation and marginal local pier scour evident; deep channel with few large boulders and extensive cobbles. Cobbles are frequent on U/S apron of L abut.39.1 35.7 N P N P N N N -- No LFP. Steel H-piles have been added at abuts to supplement timber piles and timber abuts. No signs of contraction.

-- -- -- -- -- -- -- -- -- -- Unable to locate; most likely replaced.29.0 29.3 N N Y N N Y Y -- New Riprap completely lining L & R abuts, setbacks and banks; protection extends U/S 100 feet on LB and 40 feet U/S on RB.

6.3 11.0 Y Y P Y N Y ? -- Riprap exists as concrete slabs on L abut. Riprap scarce on R abut. Significant road overtopping.-- -- N N P Y N N Y -- Heavy concrete blocks at channel edges on D/S side. Partial outcrop on RB U/S. No signs of observable local or contraction scour.

15.9 15.9 N N P Y N M N -- Marginal riprap on RB approx 1 bridge length U/S. Some debris in channel along with broken riprap. Channel has been channelized.16.3 16.3 N N N Y N M Y -- Riprap on both abuts; some existing on both banks. Old riprap levee exists on RB approx 100 feet U/S starting at bridge. Severe skew; levees are common making this channel somewhat channelized.17.0 17.0 N N N Y ? M N -- RB has moderate boulder-size riprap. Footing exposure exists on RB pile bent. Steep cutbanks. Channel in deeply incised.16.3 14.7 N N N Y N M Y -- Cobble and gravel size riprap exists on the RB and R abut. Boulder-size riprap exists on the U/S apron of R abut and RB.

-- -- -- -- -- -- -- -- -- -- Q500 depth calculated at approx 13'. Low steel of bridge at 25'. This bridge is well protected. Channel is channelized. Photos taken.16.7 17.7 Y Y N N N N -- -- Small single-span bridge; wingwall extensions on L abutment14.9 20.0 N N N Y ? N N -- No riprap at bridge abuts or banks. Local scour evident around concrete base connecting caps.19.3 19.3 N N N Y N Y Y -- Riprap deposited in '93 on LB and abut. Boulder to cobble size riprap exists on RB. Flow does not get out onto LFP at Q500.


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District 01


Route County b[ft]



Structure number



Bridge length

Drain-age area[mi2]


COMMENTS AND NOTES

Comment codes:

Notes






LB has recently deposited riprap where considerable mass wasting of banks has occurred near L abut.Riprap has recently been placed in slump that exists on RB underneath bridge. Scarce riprap located on LB. Cutbanks significant both U/S and D/S.Both abuts are well protected. No signs of contraction scour or mass wasting under bridge. Cutbanks are moderate U/S. Small erosive gully exists on RB.Riprap exists at L abut. Several debris piles exist U/S in channel.Riprap exists on R abut. Riprap is scarce on the L abut. Significant slump exists U/S on LB. New riprap has filled in U/S slump. Significant cutbank exists on the LB U/S and at bridge.Recently deposited riprap on both abut faces.Cobbling exists on both abuts. Footing exposure evident. Severe mass wasting on banks. Scattered riprap on LB and over inlayed cobbling. Poured concrete existing on LB. Old grader blades on U/S LB.Recent riprap deposited in '93 on both abuts and banks and into channel. Cutbanks are well defined U/S and D/S. Some debris in channel.Small amount of riprap U/S RB. Large chunks of concrete exist on LB in erosional ditch along roadway. Cutbanks are significant U/S and D/S.Some undercutting evident of both abuts. No protection. Significant debris in the channel.No protection. No apparent significant cutbanks or contraction scour evident.Completely covered with riprap. Sharp meander U/S.Boulder size riprap exists on RB and further into channel. Abuts are not protected. Significant cutbanks U/S and D/S.RB has relatively new boulder size riprap extending down into channel. Significant U/S debris on RB.Significant bank instability and slope failure at the U/S face and around piers. Deeply incised channel. Considering channel configuration U/S, the RB is susceptible to further contraction scour where extensive mass wasting has occurred.R abut has substantial riprap that extends on into the channel and on the U/S apron.Bridge is presently being replaced. Photos taken.Riprap on R abut and bank. Recent riprap deposited in roadway ditch perpendicular in approach. New riprap exists furthermore U/S on apron extending down into channel. Small amount of debris in channel.Debris accumulation and marginal local pier scour evident; deep channel with few large boulders and extensive cobbles. Cobbles are frequent on U/S apron of L abut.No LFP. Steel H-piles have been added at abuts to supplement timber piles and timber abuts. No signs of contraction.Unable to locate; most likely replaced.New Riprap completely lining L & R abuts, setbacks and banks; protection extends U/S 100 feet on LB and 40 feet U/S on RB.Riprap exists as concrete slabs on L abut. Riprap scarce on R abut. Significant road overtopping.Heavy concrete blocks at channel edges on D/S side. Partial outcrop on RB U/S. No signs of observable local or contraction scour.Marginal riprap on RB approx 1 bridge length U/S. Some debris in channel along with broken riprap. Channel has been channelized.Riprap on both abuts; some existing on both banks. Old riprap levee exists on RB approx 100 feet U/S starting at bridge. Severe skew; levees are common making this channel somewhat channelized.RB has moderate boulder-size riprap. Footing exposure exists on RB pile bent. Steep cutbanks. Channel in deeply incised.Cobble and gravel size riprap exists on the RB and R abut. Boulder-size riprap exists on the U/S apron of R abut and RB.Q500 depth calculated at approx 13'. Low steel of bridge at 25'. This bridge is well protected. Channel is channelized. Photos taken.Small single-span bridge; wingwall extensions on L abutmentNo riprap at bridge abuts or banks. Local scour evident around concrete base connecting caps.Riprap deposited in '93 on LB and abut. Boulder to cobble size riprap exists on RB. Flow does not get out onto LFP at Q500.


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Structure number



Bridge length

Drain-age area[mi2]




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Route County b[ft]



Structure number



Bridge length

Drain-age area[mi2]



C D E F G H I BM123456789

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Comments


C7:

The following abbreviations are used in stream names, except when part of proper name:BR - BranchCHAN - channelCR - CreekDD - Drainage DitchDIST - Uncertain; assumed to be "District" or "Distributor" (typically found in conjunction with drainage ditches)FK - ForkL - Little (as in Little Piney Creek)LAT - Lateral, used in conjuction with drainage ditchesM - Middle (as in Middle Fork Tarkio Creek)N, S, E, W - North, South, East, and West respectively (usually refers to a fork or branch of a stream)OF - Overflow (usually used with flood relief bridge)RD - RoadRI - RiverRR - RailroadSL - Slough

D7:

Highway Number, abbreviated using the following format: All are two letters followed by three numbers with leading zeroes (lettered highways use up to three letters with leading zeroes (i.e., "RT0WW" is "RT" - zero - "WW" and stands for State lettered highway "WW")).

In order of priority:IS - Interstates (i.e., "Interstate 29" -- IS029)US - U.S. Highways (i.e., "U.S. Route 63" -- US063)MO - State Numbered Highway (i.e., "State Route 142" -- MO142)RT - State Lettered Highway (i.e., "State Route 'WW' -- RT0WW)OR - Outer Road or Old Route (i.e., "Outer Road I-44" -- OR044)BU - Business Route of primary highway (i.e., "Business Route 63" -- BU063)

Interstate and U.S. Highway numbers are unique across the country; State Numbered Highways are unique to the state; State Lettered Highways are unique to the county (i.e., there will likely be a RT00A in every county, and only occassionally will it cross the county line).

E7:

Physiographic Region (fig 1) is used to determine discharge from regional regression equations in Alexander and Wilson (1995): 1 - Central Lowlands2 - Ozark Plateaus3 - Mississippi Alluvial Plain

G7:

Type of discharge:Q100 - 100-year peak dischargeQ500 - 500-year peak dischargeQimp - impendent road or levee overtopping discharge

J6:

document.xls

Comments

Method used to determine discharge:REG - Discharge determined using regional regression equations from Alexander and Wilson (1995).BC - Impendent discharge was back-calculated using the depth of flow at the bridge and generalized unit discharge equations for each physiographic region, Qimp = b * 0.888 * y2

1.653 for Region 1, Central Lowlands and Region 3, Mississippi Alluvial Plain, or Qimp = b * 0.918 * y2

1.664 for Region 2, Ozark Plateaus If Qimp < Q100, discharge through bridge, Q2, for 100-year discharge, Q2 = Q100 - 1/2 (Q100 - Qimp)EST - Estimated, usually by a distribution of conveyance through each bridge at a site with multiple bridges, where Ka = (1.49 * ba * y2a

5/3) / na conveyance of bridge "a" Kb = (1.49 * bb * y2b

5/3) / nb conveyance of bridge "b", and Q2a = Qtot * Ka / (Ka + Kb) discharge through bridge "a"GAGE - Discharge determined from gaging station at structure (usually because of substantial difference from discharge determined using regional regression equations)

M6:

Type:L = live bedC = clear water

P10:

Type of discharge:Q100 - 100-year peak dischargeQ500 - 500-year peak dischargeQimp - impendent road or levee overtopping discharge

W6:

Method used to determine discharge:REG - Discharge determined using regional regression equations from Alexander and Wilson (1995).BC - Impendent discharge was back-calculated using the depth of flow at the bridge and generalized unit discharge equations for each physiographic region, Qimp = b * 0.888 * y2

1.653 for Region 1, Central Lowlands and Region 3, Mississippi Alluvial Plain, or Qimp = b * 0.918 * y2

1.664 for Region 2, Ozark Plateaus If Qimp < Q100, discharge through bridge, Q2, for 100-year discharge, Q2 = Q100 - 1/2 (Q100 - Qimp)EST - Estimated, usually by a distribution of conveyance through each bridge at a site with multiple bridges, where Ka = (1.49 * ba * y2a

5/3) / na conveyance of bridge "a" Kb = (1.49 * bb * y2b

5/3) / nb conveyance of bridge "b", and Q2a = Qtot * Ka / (Ka + Kb) discharge through bridge "a"GAGE - Discharge determined from gaging station at structure (usually because of substantial difference from discharge determined using regional regression equations)

Z6:

Type:L = live bedC = clear water

AC10:

document.xls

Comments

The following abbreviations are used in the notes:abut(s) - abutment(s)approx - approximatelybbl - barrel (typically found with culverts, as in "3-bbl culvert")cfs - cubic feet per second, a measure of discharge flow ratedeg - degreesD/S, U/S - downstream, upstreamFP - flood plainL, R - left, rightLB, RB - left bank, right bankLFP, RFP - left flood plain, right flood plainLOB, ROB - left overbank/setback, right overbank/setbackMI River - Mississippi RiverMO River - Missouri RiverQ - dischargeQ100, Q500, Qimp - 100-year, 500-year, or impendent dischargeRR - railroadw/ - withw/o - withoutWW - wingwallYimp - depth of flow associated with impendent discharge

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document.xls

District 02



TypeTotal

MethodMain channel

OverbankLeft



A4120 CHARITON RI RT00N ADAIR 1 337 1550 Q100 59300 59300 REG 24.5 -- -- -- -- 5.6 -- --A4354 N FK SALT RI MO006 ADAIR 1 170 114 Q100 15800 10428 EST 13.7 0.0 L -- -- 9.5 -- 11.6K23 CHARITON RI MO011 ADAIR 1 324 1510 Q100 57200 57200 REG 24.6 -- -- -- -- -- -- --K299 HOG CR MO011 ADAIR 1 190 22.8 Q100 6710 6710 REG 10.4 2.2 L -- -- 3.9 3.9 9.7K301 WALNUT CR MO011 ADAIR 1 263 13.3 Q100 5440 5440 REG 9.2 2.7 L -- -- 5.7 -- 8.7K305 MUSSEL RI DD MO011 ADAIR 1 297 57.8 Q100 10400 10400 REG 11.6 1.2 L -- -- 3.9 3.9 10.7P421 SALT RI RT00T ADAIR 1 103 32.8 Q100 7820 7820 REG 16.5 16.7 L -- -- -- -- 27.7S620 BRUSH CR RT00D ADAIR 1 90 3.22 Q100 2760 2760 REG 9.5 7.4 L -- -- 5.4 -- 9.0S807 S FK FABIUS RI MO011 ADAIR 1 94 13.4 Q100 4650 3845 BC 11.1 22.4 L -- -- 3.9 -- 19.0T883 SALT RI RT00A ADAIR 1 178 16.9 Q100 5470 5470 REG 9.1 10.3 L 19.0 13.2 3.2 3.9 25.4T885 FABIUS RI RT00A ADAIR 1 176 22.2 Q100 6120 6120 REG 10.1 4.8 L -- 15.0 3.2 3.9 17.2A1823 L WAKENDA CR RT0CC CARROLL 1 85 1.95 Q100 2060 2060 REG 8.1 14.5 L 10.7 -- 3.2 -- 12.6A2747 MOSS CR DD US065 CARROLL 1 592 78.9 Q100 6000 6000 REG 4.7 4.6 L 6.9 7.2 3.8 -- 12.3A2903 WAKENDA CR US024 CARROLL 1 142 2.01 Q100 1870 1870 REG 7.4 4.1 L 2.9 -- 3.2 -- 9.6A2906 WAKENDA CR US065 CARROLL 1 572 254 Q100 25100 25100 REG 10.6 -- -- -- -- -- -- --A3928 WAKENDA CR RT0JJ CARROLL 1 152 36.7 Q100 10300 10300 REG 14.5 7.9 L 20.6 18.5 5.1 -- 16.7A4269 BRIDGE CR RT0WW CARROLL 1 181 46.3 Q100 10200 10200 REG 12.8 14.3 L 23.3 -- 3.9 -- 17.3F404 WAKENDA CR BU065 CARROLL 1 104 255 Q100 25400 10746 BC 17.9 0.0 L -- -- -- -- 29.7H423 WILDCAT CR US024 CARROLL 1 33 4.33 Q100 3090 2360 BC 14.4 11.1 L -- -- -- -- 39.8H6061 SHOOTMAN CR US065 CARROLL 1 87 3.64 Q100 2950 2950 REG 13.5 9.6 L 17.9 -- -- -- 35.2H6141 BIG CR US065 CARROLL 1 223 51.2 Q100 12700 12700 REG 12.5 -- -- -- -- -- -- --H9411 WAKENDA CR BU065 CARROLL 1 256 255 Q100 25400 7363 BC 8.2 0.0 L 15.5 15.3 3.2 3.9 17.6J4 SMITH DD US024 CARROLL 1 63 3.81 Q100 2700 2700 REG 10.4 -- -- -- -- -- -- --K571 MOUND CR US065 CARROLL 1 108 8.88 Q100 4750 4750 REG 10.6 18.2 L -- -- 11.3 -- 14.0K98 WAKENDA CR OF BU065 CARROLL 1 61 255 Q100 25400 1791 BC 8.3 0.0 L -- -- 3.9 -- 4.6L2R1 DRAINAGE DITCH MO041 CARROLL 1 80 2.95 Q100 2380 1815 BC 7.5 0.0 L -- -- 3.9 -- 3.9L426 CAMP CR RT00B CARROLL 1 95 6.44 Q100 4180 4180 REG 10.7 14.1 L 8.3 -- 5.8 -- 15.8N630 BIG CR RT00M CARROLL 1 169 114 Q100 17000 9010 EST 13.3 1.7 L -- -- 7.7 -- 15.5N632 WOLF CR RT00M CARROLL 1 95 5.49 Q100 3240 3240 REG 10.3 15.0 L -- -- 7.1 -- 13.6N859 BIG CR RT0UU CARROLL 1 430 133 Q100 17100 17100 REG 10.9 5.3 L 17.1 18.5 7.6 3.2 20.2N910 SHOOTMAN CR RT0UU CARROLL 1 137 18.5 Q100 6050 5155 BC 11.9 7.2 L 13.9 14.8 7.4 -- 7.1P659 BURR OAK CR RT00W CARROLL 1 111 9.44 Q100 4870 4870 REG 11.9 11.5 L 15.7 17.7 3.9 -- 22.4S10 CAMP CR RT00B CARROLL 1 66 1.79 Q100 1990 1990 REG 9.1 11.4 L -- -- 6.1 -- 11.7S485 BIG CR MO139 CARROLL 1 299 175 Q100 19500 8385 EST 8.3 0.0 L 11.2 10.1 5.4 -- 13.4S549 BIG CR OF MO139 CARROLL 1 219 175 Q100 19500 6435 EST 8.3 0.0 L 14.7 13.8 3.9 -- 20.1S605 BIG CR MO139 CARROLL 1 175 175 Q100 19500 4680 EST 7.8 1.7 L -- -- 3.9 -- 19.0S868 MOUND CR RT00J CARROLL 1 102 9.16 Q100 4810 4810 REG 11.1 8.2 L -- -- 3.9 -- 13.3T267 TATER HILL CR RT00Z CARROLL 1 130 27.3 Q100 8970 8970 REG 14.8 5.0 L -- -- 3.9 -- 15.7T271 TURKEY CR RT00D CARROLL 1 149 17.6 Q100 5940 5045 BC 11.8 14.7 L 13.8 11.8 3.2 3.9 26.2T368 BRIDGE CR RT00J CARROLL 1 101 13.6 Q100 5200 5200 REG 13.4 15.4 L -- -- 3.2 -- 14.2T938 WAKENDA CR RT00B CARROLL 1 202 285 Q100 24800 18200 BC 16.7 0.0 L 16.3 16.3 7.7 -- 20.7A3779 CHARITON RI US024 CHARITON 1 504 1960 Q100 68500 68500 REG 21.0 -- -- -- -- -- -- --A4528 L CHARITON RI MO005 CHARITON 1 258 613 Q100 36900 36900 REG 21.6 -- -- -- -- -- -- --G08263 CHARITON RI US024 CHARITON 1 163 169 Q100 17200 7998 EST 11.3 0.0 L 20.0 15.3 11.0 -- 21.8H631 MUSSEL RI US024 CHARITON 1 111 335 Q100 26400 1848 EST 5.9 0.0 L -- -- 6.3 -- 23.9

Table 3. Bridge site information and estimated scour depths from rapid estimation assessments (Level 1+) in Missouri.--Continued


Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]


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District 02

DISCHARGE "A" DISCHARGE "B"COMMENTS AND NOTES

OT

Abutment scour Discharge Contraction scour Abutment scour

PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right

RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes-- Q500 78300 78300 REG 29.0 -- -- -- -- 5.6 -- -- -- -- -- -- -- -- -- -- -- Very large opening; Very well protected. Photos taken

11.6 Q500 21200 13992 EST 15.9 0.4 L -- -- 9.6 -- 15.8 15.8 N N N Y N M N -- Partial riprap on LB. Some erosional gullies on RB. Debris in US channel-- Q500 75600 75600 REG 29.1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A5644

9.7 Q500 9080 9080 REG 11.8 2.3 L 15.4 -- 3.9 3.9 13.1 13.1 N N N Y N N -- -- Concrete connections visible. Substantial debris in channel. Poured asphalt on abutment faces8.7 Q500 7360 7360 REG 10.3 3.0 L -- -- 5.7 -- 12.1 12.1 N N N Y D M -- -- Concrete connections visible. Riprap on R bank

10.7 Q500 14000 14000 REG 13.1 1.3 L -- -- 3.9 3.9 13.6 13.6 N N N Y N N -- -- Severe gully erosion on LB. Moderate mass wasting under bridge. Deep channel--will not get onto FPs or setbacks27.7 Q500 10600 10600 REG 18.7 22.4 L -- -- -- -- 35.1 35.1 N N N Y N Y N -- Moderate cobble-sized riprap on R&L abutments and banks. Significant cutbanks U/S & D/S of bridge.12.0 Q500 3750 3750 REG 10.9 15.6 L -- -- 5.5 -- 12.8 14.7 N N N Y N M N -- Concrete connections visible. Riprap on R bank and partial on abutment16.0 Qimp 3040 3040 BC 9.6 21.5 L -- -- 3.9 -- 16.3 13.3 Y Y N Y N M N -- Riprap on LB; poured asphalt is being undermined on L abutment. Debris trapped on low steel confirms overtopping30.2 Q500 7450 7450 REG 10.9 14.7 L 23.0 17.6 3.2 3.9 31.9 35.8 N N N Y N N -- -- Concrete connections visible. Moderate contraction scour evident in setbacks22.6 Q500 8330 8330 REG 12.1 10.8 L -- 19.2 3.2 3.9 25.5 29.3 N N N Y N N -- -- No riprap on banks or abutments. Thick trees on LFP12.1 Q500 2810 2810 REG 9.1 16.4 L 15.3 -- 3.2 -- 14.4 13.8 N P N Y N Y N -- Riprap on both banks & abutment faces. Large meander U/S. cutbank on U/S RB. Channel appears to be deepening, riprap placed to stop migration.12.3 Q500 8520 8520 REG 5.8 5.7 L 9.2 9.5 3.8 -- 14.4 14.4 P P N N Y Y D -- Bridge designed to carry MO River overflow and backwater; therefore, given Q's misrepresent true scour discharges. Riprap on both abutments and U/S embankment faces. Contraction & local scour observed on R setback.

7.2 Q500 2580 2580 REG 8.4 6.1 L 5.4 -- 3.2 -- 12.2 11.2 N N N N N Y Y Y Riprap on both abutments, on RB and U/S. Spurdike on U/S RB. Small creek, bridge probably designed to help MO River FP. Channelized & leveed mostly. Old US24 road embankment U/S.-- Q500 33300 33300 REG 12.6 -- -- -- -- -- -- -- -- N N N P Y Y Y -- Well protected with riprap on banks and abutments and around pile bents. Apparently designed to carry MO River flow. Levees on setbacks under bridge limit Creek flow up to 12 ft depth & 240 ft width.

14.7 Q500 13800 13800 REG 16.8 13.8 L 26.3 23.9 5.1 -- 20.0 18.9 P P N Y D M N -- Riprap on banks & abutment faces--simply pushed in place to stop slope failure. Cutbanks on U/S RB; mass wasting on all other banks U/S & D/S. Old bridge crossing U/S. High RR embankment with bridges crosses diagonally from U/S RFP to D/S RFP & then to D/S LFP14.1 Q500 13700 13700 REG 15.0 17.8 L 31.1 -- 3.9 -- 20.3 18.2 N N N Y N N -- -- Substantial erosion under bridge. Local scour near setback pier set. Mass wasting common on channel banks.30.3 Qimp 7560 7560 BC 14.5 7.1 L -- -- -- -- 21.1 22.5 Y Y N Y Y M N -- Concrete debris on abutment toes. R abutment toe & footing exposed. Channel shifted to right due to meander U/S. Cutbank on U/S RB. Generally in bad shape.39.0 Qimp 1630 1630 BC 11.5 12.4 L -- -- -- -- 35.2 33.5 Y Y N Y D N -- -- Small bridge with vertical WWs. Channel shifted to Left.29.3 Q500 4000 4000 REG 16.2 9.2 L 23.0 -- -- -- 35.5 30.0 N P N Y Y N -- -- Single span bridge with filled approach "spans". Channelized but meandering. Cutbaks & slumps on all banks U/S & D/S. Footing exposure on R abutment.

-- Q500 16900 16900 REG 14.9 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Well protected. No signs of scour, riprap aprons. Photos taken18.4 Qimp 5490 5490 BC 6.9 0.0 L 12.9 12.6 3.2 3.9 11.1 12.9 Y Y N P Y N -- -- Second relief bridge. Qimp approx equal Q100. Over slough of Wakenda Creek. Old bridge in dire need of replacement. Well-defined channel U/S, blowhole & undefined banks D/S.

-- Q500 3700 3700 REG 12.6 -- -- -- -- -- -- -- -- Y Y N N Y Y N -- Leveed Channel, levees designed for MO River flow. No FPs or setbacks. Large riprap on L abutment face. R abutment appears to be washing out. RR embankment and tressle approx 70 ft U/S.17.2 Q500 6410 6410 REG 12.7 24.8 L -- -- 11.3 -- 18.1 20.2 N N N Y N M N -- Cobbling on both abutment faces. Severe fluvial erosion on LB around pier. Mass wasting typical on all banks U/S & D/S

4.6 Qimp 1390 1390 BC 7.1 1.6 L -- -- 3.9 -- -- -- Y Y N Y Y N -- -- First relief bridge. Qimp approx equal Q100. In town, FPs paved. No flow on FPs, no setbacks.3.9 Qimp 1250 1250 BC 6.0 0.2 L -- -- 3.8 -- -- -- N P N N Y N -- -- Leveed channel at edges of channel. No FPs. Qimp taken as top of levees because FPs are for MO River--ie, once levees overtopped, no additional depth. R abutment undermined.

16.7 Q500 5640 5640 REG 12.8 12.9 L 13.3 -- 5.8 -- 15.4 16.3 P Y N Y Y N -- -- Old road abutments under bridge. Meander w/ cutbanks U/S. On edge of MO River FP, just U/S of Wakenda Creek. Erosion gullies & contraction scour on L setback.15.0 Q500 22700 12031 EST 15.6 6.0 L -- -- 7.7 -- 19.5 19.1 N N N Y N N N -- Old abutment wall in DS channel RB under bridge and LB. Some concrete slabs on LB and Abutment. Erosion gullies under both bridges.

9.6 Q500 4430 4430 REG 11.6 18.3 L -- -- 7.1 -- 15.9 12.8 N N N Y D N -- -- Large concrete slab/wall extending width of LB. ROB is not FP--rolling hills/natural levees.19.4 Q500 22800 22800 REG 12.9 3.9 L 20.4 21.8 7.7 3.2 20.0 19.1 Y Y N Y Y N -- -- Shares a FP with N910 over Shootman Cr, which will act as relief bridge. The present data assumes not (worst case). Well developed contraction/abutment scour holes & deposition on both setbacks. Cutbanks & slumping on U/S & D/S banks. U/S RFP leveed.16.3 Qimp 4260 4260 BC 10.6 12.2 L 9.8 10.9 7.3 -- 5.9 15.8 Y Y N Y Y N -- -- Shares a FP with N859 over Big Cr, and will act as relief bridge. The present data assumes not (worst case). Creek parallels road on U/S LFP for approx 1 mile along overflow section. Levee on U/S FP forces flow between road and levee19.5 Q500 6560 6560 REG 14.3 17.3 L 19.7 21.9 3.9 -- 28.9 26.1 P Y N P Y M N -- Riprap pushed in place on LB and abutment setback. Filled in contraction scour hole on L setback. Channelized. Mass wasting on U/S & D/S banks & under bridge. Potential road overflow on both FPs13.3 Q500 2720 2720 REG 10.4 15.6 L -- -- 6.1 -- 14.2 15.8 P P N Y Y N -- -- Bridge built with 30 deg skew--channel approaches at 15 deg. U/S channel filled w/ debris and wood. Immediately U/S of confluence.13.2 Q500 26000 11180 EST 9.7 0.0 L 15.0 14.4 5.4 -- 15.9 15.8 N P N Y Y N -- -- Channel has migrated left almost one whole span. Levee along RB will limit flow, but assumed not present for relief bridges--Q100 will overtop. Contraction scour observed on L setback. Large slump on RB at & U/S of bridge19.3 Q500 26000 8580 EST 9.9 0.0 L 16.9 16.3 3.9 -- 21.4 20.7 N P N Y Y N -- -- Relief bridge, but small tributary which parallels road of RFP curves under bridge and becomes "channel". Contraction scour observed on both "setbacks".19.0 Q500 26000 6240 EST 9.3 2.3 L -- -- 3.9 -- 20.4 20.4 N P N N N N -- -- Relief bridge. Not in any real danger. Regular deposition appears to occur, some contraction scour as well.10.2 Q500 6490 6490 REG 13.3 15.6 L -- -- 3.9 -- 17.4 14.7 P Y N Y N M N -- Moderate gully erosion on R bank. Left abutment and bank well riprapped. FPs are heavy timber and undergrowth12.0 Q500 12000 12000 REG 17.6 15.1 L -- -- 3.9 -- 20.1 17.4 N P N Y N Y N -- Cobbles sized riprap on both banks and abutments; moderately protected. Sand channel; thick undergrowth28.6 Qimp 4150 4150 BC 10.5 19.7 L 11.2 9.4 3.2 3.9 27.5 29.3 Y Y N Y Y N -- -- Contraction scour under bridge at setbacks with deposition zones immediately D/S. Channelized but meandering. Cutbanks & slumps on all banks U/S & D/S. Overflow sections on both FPs. Bridge cuts across FP diagonally.13.4 Q500 7060 7060 REG 14.2 17.3 L -- -- 3.2 -- 15.4 14.7 N P N Y N N -- -- Moderate fluvial erosion on R&L banks. Concreted connections visible.20.7 Qimp 11600 11600 BC 13.2 0.0 L 9.8 9.8 7.7 -- 15.8 15.8 Y P N N Y N -- -- Channelized, along edge of MO River FP. Leveed on LB to depth of 13.4'. Allows flow from MO River; overflow section on RFP. Contraction scour on R setback

-- Q500 90100 90100 REG 24.8 -- -- -- -- -- -- -- -- N N N N N Y Y -- Bridge well protected with riprap aprons on abutments and U/S and D/S embankment faces. Riprap on both banks. "Newer" bridge. (I-beams unpainted?) Flagged due to high Potential Scour Index. Piers designed to minimize scour as well.-- Q500 49000 49000 REG 25.7 -- -- -- -- -- -- -- -- P P N Y N Y Y -- Flagged due to cutbank on LB. Photos taken. Well protected & designed to resist scour. Riprap with aprons on both abutments & well designed piers. Channel appears to be deepening and shifting slightly.

19.7 Q500 23100 10742 EST 13.5 0.0 L 23.7 18.7 11.0 -- 23.7 21.6 N P N Y Y Y N -- Riprap on LB & both abutments. Channelized straight through bridge. Levee on US RFP up to 9 ft will limit and control flow. Bridge built with 25 deg skew, channel approaches with no skew. Relief bridge G891R. Main bridge along L edge of FP.23.9 Q500 35300 2471 EST 7.0 0.0 L -- -- 6.3 -- 26.9 26.9 P P N N Y N -- -- Relief bridge to Mussel Fork H520R. Probably noted due to contraction scour under bridge. FP depth = channel depth. Old cobbling on abutment faces.




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank


RD - Riprap "designed" as a scour countermeasure?Yar Qtot Q2 Y2 Ycm Ycl Ycr Ypm Ypo Yal Yar SD - Spurdikes present?

[ft3/s] [ft3/s]

V W X Y Z AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW123456789

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W6


Z6


AC10


document.xls

District 02

Comment codes:

NotesVery large opening; Very well protected. Photos takenPartial riprap on LB. Some erosional gullies on RB. Debris in US channelReplaced with A5644Concrete connections visible. Substantial debris in channel. Poured asphalt on abutment facesConcrete connections visible. Riprap on R bankSevere gully erosion on LB. Moderate mass wasting under bridge. Deep channel--will not get onto FPs or setbacksModerate cobble-sized riprap on R&L abutments and banks. Significant cutbanks U/S & D/S of bridge.Concrete connections visible. Riprap on R bank and partial on abutmentRiprap on LB; poured asphalt is being undermined on L abutment. Debris trapped on low steel confirms overtoppingConcrete connections visible. Moderate contraction scour evident in setbacksNo riprap on banks or abutments. Thick trees on LFPRiprap on both banks & abutment faces. Large meander U/S. cutbank on U/S RB. Channel appears to be deepening, riprap placed to stop migration.Bridge designed to carry MO River overflow and backwater; therefore, given Q's misrepresent true scour discharges. Riprap on both abutments and U/S embankment faces. Contraction & local scour observed on R setback.Riprap on both abutments, on RB and U/S. Spurdike on U/S RB. Small creek, bridge probably designed to help MO River FP. Channelized & leveed mostly. Old US24 road embankment U/S.Well protected with riprap on banks and abutments and around pile bents. Apparently designed to carry MO River flow. Levees on setbacks under bridge limit Creek flow up to 12 ft depth & 240 ft width.Riprap on banks & abutment faces--simply pushed in place to stop slope failure. Cutbanks on U/S RB; mass wasting on all other banks U/S & D/S. Old bridge crossing U/S. High RR embankment with bridges crosses diagonally from U/S RFP to D/S RFP & then to D/S LFPSubstantial erosion under bridge. Local scour near setback pier set. Mass wasting common on channel banks.Concrete debris on abutment toes. R abutment toe & footing exposed. Channel shifted to right due to meander U/S. Cutbank on U/S RB. Generally in bad shape.Small bridge with vertical WWs. Channel shifted to Left.Single span bridge with filled approach "spans". Channelized but meandering. Cutbaks & slumps on all banks U/S & D/S. Footing exposure on R abutment. Well protected. No signs of scour, riprap aprons. Photos takenSecond relief bridge. Qimp approx equal Q100. Over slough of Wakenda Creek. Old bridge in dire need of replacement. Well-defined channel U/S, blowhole & undefined banks D/S.Leveed Channel, levees designed for MO River flow. No FPs or setbacks. Large riprap on L abutment face. R abutment appears to be washing out. RR embankment and tressle approx 70 ft U/S.Cobbling on both abutment faces. Severe fluvial erosion on LB around pier. Mass wasting typical on all banks U/S & D/SFirst relief bridge. Qimp approx equal Q100. In town, FPs paved. No flow on FPs, no setbacks.Leveed channel at edges of channel. No FPs. Qimp taken as top of levees because FPs are for MO River--ie, once levees overtopped, no additional depth. R abutment undermined.Old road abutments under bridge. Meander w/ cutbanks U/S. On edge of MO River FP, just U/S of Wakenda Creek. Erosion gullies & contraction scour on L setback.Old abutment wall in DS channel RB under bridge and LB. Some concrete slabs on LB and Abutment. Erosion gullies under both bridges.Large concrete slab/wall extending width of LB. ROB is not FP--rolling hills/natural levees.Shares a FP with N910 over Shootman Cr, which will act as relief bridge. The present data assumes not (worst case). Well developed contraction/abutment scour holes & deposition on both setbacks. Cutbanks & slumping on U/S & D/S banks. U/S RFP leveed.Shares a FP with N859 over Big Cr, and will act as relief bridge. The present data assumes not (worst case). Creek parallels road on U/S LFP for approx 1 mile along overflow section. Levee on U/S FP forces flow between road and leveeRiprap pushed in place on LB and abutment setback. Filled in contraction scour hole on L setback. Channelized. Mass wasting on U/S & D/S banks & under bridge. Potential road overflow on both FPsBridge built with 30 deg skew--channel approaches at 15 deg. U/S channel filled w/ debris and wood. Immediately U/S of confluence.Channel has migrated left almost one whole span. Levee along RB will limit flow, but assumed not present for relief bridges--Q100 will overtop. Contraction scour observed on L setback. Large slump on RB at & U/S of bridgeRelief bridge, but small tributary which parallels road of RFP curves under bridge and becomes "channel". Contraction scour observed on both "setbacks".Relief bridge. Not in any real danger. Regular deposition appears to occur, some contraction scour as well.Moderate gully erosion on R bank. Left abutment and bank well riprapped. FPs are heavy timber and undergrowthCobbles sized riprap on both banks and abutments; moderately protected. Sand channel; thick undergrowthContraction scour under bridge at setbacks with deposition zones immediately D/S. Channelized but meandering. Cutbanks & slumps on all banks U/S & D/S. Overflow sections on both FPs. Bridge cuts across FP diagonally.Moderate fluvial erosion on R&L banks. Concreted connections visible.Channelized, along edge of MO River FP. Leveed on LB to depth of 13.4'. Allows flow from MO River; overflow section on RFP. Contraction scour on R setbackBridge well protected with riprap aprons on abutments and U/S and D/S embankment faces. Riprap on both banks. "Newer" bridge. (I-beams unpainted?) Flagged due to high Potential Scour Index. Piers designed to minimize scour as well.Flagged due to cutbank on LB. Photos taken. Well protected & designed to resist scour. Riprap with aprons on both abutments & well designed piers. Channel appears to be deepening and shifting slightly.Riprap on LB & both abutments. Channelized straight through bridge. Levee on US RFP up to 9 ft will limit and control flow. Bridge built with 25 deg skew, channel approaches with no skew. Relief bridge G891R. Main bridge along L edge of FP.Relief bridge to Mussel Fork H520R. Probably noted due to contraction scour under bridge. FP depth = channel depth. Old cobbling on abutment faces.

N - NoY - YesP - PossibleM - Marginal? - Don't know-- - Not determined or not applicable

AX AY AZ BA BB BC BD BE BF BG BH BI BJ BK BL BM123456789

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AT10


document.xls

District 02

Very large opening; Very well protected. Photos takenPartial riprap on LB. Some erosional gullies on RB. Debris in US channelReplaced with A5644Concrete connections visible. Substantial debris in channel. Poured asphalt on abutment facesConcrete connections visible. Riprap on R bankSevere gully erosion on LB. Moderate mass wasting under bridge. Deep channel--will not get onto FPs or setbacksModerate cobble-sized riprap on R&L abutments and banks. Significant cutbanks U/S & D/S of bridge.Concrete connections visible. Riprap on R bank and partial on abutmentRiprap on LB; poured asphalt is being undermined on L abutment. Debris trapped on low steel confirms overtoppingConcrete connections visible. Moderate contraction scour evident in setbacksNo riprap on banks or abutments. Thick trees on LFPRiprap on both banks & abutment faces. Large meander U/S. cutbank on U/S RB. Channel appears to be deepening, riprap placed to stop migration.Bridge designed to carry MO River overflow and backwater; therefore, given Q's misrepresent true scour discharges. Riprap on both abutments and U/S embankment faces. Contraction & local scour observed on R setback.Riprap on both abutments, on RB and U/S. Spurdike on U/S RB. Small creek, bridge probably designed to help MO River FP. Channelized & leveed mostly. Old US24 road embankment U/S.Well protected with riprap on banks and abutments and around pile bents. Apparently designed to carry MO River flow. Levees on setbacks under bridge limit Creek flow up to 12 ft depth & 240 ft width.Riprap on banks & abutment faces--simply pushed in place to stop slope failure. Cutbanks on U/S RB; mass wasting on all other banks U/S & D/S. Old bridge crossing U/S. High RR embankment with bridges crosses diagonally from U/S RFP to D/S RFP & then to D/S LFPSubstantial erosion under bridge. Local scour near setback pier set. Mass wasting common on channel banks.Concrete debris on abutment toes. R abutment toe & footing exposed. Channel shifted to right due to meander U/S. Cutbank on U/S RB. Generally in bad shape.Small bridge with vertical WWs. Channel shifted to Left.Single span bridge with filled approach "spans". Channelized but meandering. Cutbaks & slumps on all banks U/S & D/S. Footing exposure on R abutment. Well protected. No signs of scour, riprap aprons. Photos takenSecond relief bridge. Qimp approx equal Q100. Over slough of Wakenda Creek. Old bridge in dire need of replacement. Well-defined channel U/S, blowhole & undefined banks D/S.Leveed Channel, levees designed for MO River flow. No FPs or setbacks. Large riprap on L abutment face. R abutment appears to be washing out. RR embankment and tressle approx 70 ft U/S.Cobbling on both abutment faces. Severe fluvial erosion on LB around pier. Mass wasting typical on all banks U/S & D/SFirst relief bridge. Qimp approx equal Q100. In town, FPs paved. No flow on FPs, no setbacks.Leveed channel at edges of channel. No FPs. Qimp taken as top of levees because FPs are for MO River--ie, once levees overtopped, no additional depth. R abutment undermined.Old road abutments under bridge. Meander w/ cutbanks U/S. On edge of MO River FP, just U/S of Wakenda Creek. Erosion gullies & contraction scour on L setback.Old abutment wall in DS channel RB under bridge and LB. Some concrete slabs on LB and Abutment. Erosion gullies under both bridges.Large concrete slab/wall extending width of LB. ROB is not FP--rolling hills/natural levees.Shares a FP with N910 over Shootman Cr, which will act as relief bridge. The present data assumes not (worst case). Well developed contraction/abutment scour holes & deposition on both setbacks. Cutbanks & slumping on U/S & D/S banks. U/S RFP leveed.Shares a FP with N859 over Big Cr, and will act as relief bridge. The present data assumes not (worst case). Creek parallels road on U/S LFP for approx 1 mile along overflow section. Levee on U/S FP forces flow between road and leveeRiprap pushed in place on LB and abutment setback. Filled in contraction scour hole on L setback. Channelized. Mass wasting on U/S & D/S banks & under bridge. Potential road overflow on both FPsBridge built with 30 deg skew--channel approaches at 15 deg. U/S channel filled w/ debris and wood. Immediately U/S of confluence.Channel has migrated left almost one whole span. Levee along RB will limit flow, but assumed not present for relief bridges--Q100 will overtop. Contraction scour observed on L setback. Large slump on RB at & U/S of bridgeRelief bridge, but small tributary which parallels road of RFP curves under bridge and becomes "channel". Contraction scour observed on both "setbacks".Relief bridge. Not in any real danger. Regular deposition appears to occur, some contraction scour as well.Moderate gully erosion on R bank. Left abutment and bank well riprapped. FPs are heavy timber and undergrowthCobbles sized riprap on both banks and abutments; moderately protected. Sand channel; thick undergrowthContraction scour under bridge at setbacks with deposition zones immediately D/S. Channelized but meandering. Cutbanks & slumps on all banks U/S & D/S. Overflow sections on both FPs. Bridge cuts across FP diagonally.Moderate fluvial erosion on R&L banks. Concreted connections visible.Channelized, along edge of MO River FP. Leveed on LB to depth of 13.4'. Allows flow from MO River; overflow section on RFP. Contraction scour on R setbackBridge well protected with riprap aprons on abutments and U/S and D/S embankment faces. Riprap on both banks. "Newer" bridge. (I-beams unpainted?) Flagged due to high Potential Scour Index. Piers designed to minimize scour as well.Flagged due to cutbank on LB. Photos taken. Well protected & designed to resist scour. Riprap with aprons on both abutments & well designed piers. Channel appears to be deepening and shifting slightly.Riprap on LB & both abutments. Channelized straight through bridge. Levee on US RFP up to 9 ft will limit and control flow. Bridge built with 25 deg skew, channel approaches with no skew. Relief bridge G891R. Main bridge along L edge of FP.Relief bridge to Mussel Fork H520R. Probably noted due to contraction scour under bridge. FP depth = channel depth. Old cobbling on abutment faces.

BN BO BP123456789

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document.xls

District 02



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]H667 DOXIE CR MO005 CHARITON 1 403 42.8 Q100 8820 8820 REG 11.0 2.0 L -- 7.0 8.6 8.6 15.2L344 CHARITON RI MO129 CHARITON 1 264 1890 Q100 61000 36300 BC 21.6 0.0 L -- -- 11.7 -- 12.2N135 JONES BR RT00O CHARITON 1 83 8.32 Q100 3760 3145 BC 9.7 15.0 L 15.0 14.5 3.9 -- 26.1N694 SLATER BR RT0JJ CHARITON 1 105 9.60 Q100 4880 3515 BC 9.8 3.0 L 12.6 14.9 3.2 -- 4.2T458 CLARK BR RT00D CHARITON 1 143 26.9 Q100 7730 7730 REG 12.7 14.2 L -- 7.0 7.7 -- 19.4T463 BEE BR RT00D CHARITON 1 90 7.82 Q100 3780 3110 BC 9.7 11.5 L 5.5 6.3 3.2 -- 18.2X808 PUZZLE CR RT00P CHARITON 1 103 28.0 Q100 7170 4935 BC 11.4 3.5 L 11.4 13.2 3.9 -- 17.0A1217 SUGAR CR MO146 GRUNDY 1 185 80.6 Q100 14900 14900 REG 17.9 9.0 L -- -- 10.6 -- 13.1A2413 RACOON CR MO146 GRUNDY 1 175 21.7 Q100 8230 8230 REG 11.1 -- -- -- -- -- -- --A2675 HONEY CR US065 GRUNDY 1 325 102 Q100 15500 15500 REG 11.5 2.5 L 11.4 9.9 6.4 3.9 12.4A904 HICKORY CR MO006 GRUNDY 1 119 12.2 Q100 5930 5930 REG 12.5 15.9 L -- -- 7.8 -- 16.6A906 THOMPSON RI MO006 GRUNDY 1 870 1730 Q100 71000 71000 REG 16.9 6.2 L -- 18.5 17.3 8.1 14.1F10931 HONEY CR MO006 GRUNDY 1 189 85.6 Q100 14100 14100 REG 14.6 -- -- -- -- -- -- --J769 NO CR MO006 GRUNDY 1 212 46.1 Q100 9170 7244 EST 9.3 7.3 L 13.3 16.0 8.4 -- 14.4J771 W MEDICINE CR MO006 GRUNDY 1 357 101 Q100 14800 13172 EST 10.3 0.0 L -- -- 14.7 4.9 9.6L340 WELDON RI RT00A GRUNDY 1 264 547 Q100 34600 30750 BC 19.5 5.0 L -- -- 19.6 -- 12.0N466 GEES CR RT00F GRUNDY 1 90 11.6 Q100 5540 5540 REG 13.0 15.7 L -- -- 4.7 5.1 14.5N701 MUDDY CR RT00O GRUNDY 1 213 96.7 Q100 14100 14100 REG 16.9 0.0 L 15.9 12.0 8.7 -- 12.7P202 HICKORY CR RT00W GRUNDY 1 109 25.9 Q100 7390 5945 BC 12.2 2.8 L 12.5 -- 3.9 -- 15.5P203 GEES CR RT00W GRUNDY 1 109 14.6 Q100 9350 8065 BC 14.6 19.9 L -- -- 3.9 -- 20.6P36 MUDDY CR RT00B GRUNDY 1 132 85.5 Q100 13400 12450 BC 18.1 14.2 L -- -- 7.7 -- 26.0S402 CROOKED CR RT00E GRUNDY 1 71 4.29 Q100 2430 2215 BC 8.6 4.2 L -- -- 3.9 -- 11.1S586 NO CR RT00N GRUNDY 1 90 34.0 Q100 7730 6155 BC 13.9 7.7 L -- -- 4.7 -- 25.3S601 MUDDY CR RT00C GRUNDY 1 98 33.7 Q100 8560 6380 BC 13.8 3.9 L -- -- 4.5 -- 29.4S657 WOLF CR RT00W GRUNDY 1 100 9.10 Q100 4930 3745 BC 9.8 6.3 L -- -- 3.9 -- 13.9T899 WELDON RI RT00C GRUNDY 1 289 492 Q100 36600 36600 REG 20.1 -- -- -- -- -- -- --A4415 BLUE CR MO087 HOWARD 1 130 6.73 Q100 4330 4330 REG 11.1 2.4 L -- 4.2 3.2 -- 11.0A4636 RICHLAND CR MO087 HOWARD 2 148 6.05 Q100 3630 3630 REG 8.7 2.9 L -- -- 5.1 -- 11.2L119 BONNE FEMME CR US040 HOWARD 2 244 175 Q100 21000 21000 REG 15.3 -- -- -- -- -- -- --X127 MONITEAU CR MO124 HOWARD 2 127 36.5 Q100 8320 6140 BC 11.1 3.9 L 7.1 4.6 6.5 -- 18.4A2099 W FK LOCUST CR RT0MM LINN 1 182 117 Q100 14900 14900 REG 16.6 11.7 L -- -- 7.8 -- 19.5A3890 WINNEGAN BR MO011 LINN 1 136 11.7 Q100 4910 4910 REG 10.6 11.2 L -- -- 4.8 -- 13.5A845 BIG TURKEY CR US036 LINN 1 89 21.6 Q100 5680 5680 REG 13.3 -- -- -- -- -- -- --G815R YELLOW CR US036 LINN 1 271 143 Q100 18400 18400 REG 17.2 13.5 L -- 17.5 7.7 10.6 20.1J100 LOCUST CR MO005 LINN 1 131 6.43 Q100 3890 3890 REG 11.8 1.5 L -- -- 6.4 -- 19.6J189 LOCUST CR MO005 LINN 1 43 9.70 Q100 4870 4870 REG 19.5 21.1 L -- -- 6.5 -- 39.8J96 LOWES BR MO005 LINN 1 130 9.50 Q100 4530 4530 REG 10.0 0.6 L -- -- 6.4 -- 9.4P320 MUDDY CR RT00E LINN 1 95 23.5 Q100 11900 8140 BC 16.0 5.6 L -- -- 5.5 -- 21.0R127 YELL0W CR RT00O LINN 1 149 75.5 Q100 11800 11800 REG 16.7 10.6 L -- -- 4.0 -- 16.3S489 YELLOW CR RT00C LINN 1 110 94.0 Q100 13500 9555 BC 16.1 15.4 L -- -- 4.8 -- 32.3S747 LEWIS CR MO139 LINN 1 90 8.92 Q100 3740 3740 REG 11.2 14.2 L -- -- 4.5 -- 16.2T377 PARSONS CR MO139 LINN 1 79 27.4 Q100 6970 4630 BC 12.7 10.0 L -- -- 3.9 -- 32.2T807 VAN DOOSEN CR RT0WW LINN 1 79 7.85 Q100 3870 3870 REG 11.7 14.5 L -- -- 3.9 -- 14.9X480 LOCUST CR DD RT00B LINN 1 237 554 Q100 35800 24800 BC 18.1 1.4 L -- -- 18.7 5.5 18.9X719 LONG CR RT00M LINN 1 112 39.4 Q100 8450 5610 BC 11.9 15.5 L -- -- 7.9 -- 18.9


105657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100

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document.xls

District 02


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right

RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]14.7 Q500 11900 11900 REG 12.9 3.0 L -- 12.3 8.6 8.6 18.8 18.2 N P N Y D N -- -- On edge of MO River FP. Known from observation to be subject to backwater. Webwalls on pier stop approx 10 ft above ground. Road & edge of FP act as a funnel.12.2 Qimp 11600 11600 BC 12.5 4.9 L -- -- 11.6 -- -- -- Y P N Y Y M N -- Riprap on both banks at bridge and U/S. Discontinuous levees on U/S banks will control flow (flow behind levees will be slack)--therefore no FP data. FP flow will be carried by overflow sections. Cutbanks and fallen trees on all banks.24.5 Qimp 2530 2530 BC 8.5 17.3 L 12.0 10.9 3.9 -- 24.8 23.2 Y Y N Y Y N -- -- Riprap on RB at & U/S of bridge. Cutbanks & mass wasting on all banks U/S and D/S.17.5 Qimp 2150 2150 BC 7.3 4.4 L 6.8 9.3 3.2 -- -- 12.8 Y Y N P D N -- -- Channel along L edge of FP. Road overflow sections on both FPs. Cutbanks on both banks U/S & D/S.28.6 Q500 10400 10400 REG 14.4 16.6 L -- 12.0 7.7 -- 24.0 30.9 P P N Y Y N -- -- Cutbanks on LB under bridge. Discontinuous levees on both U/S banks.16.3 Qimp 2440 2440 BC 8.4 12.8 L 3.7 4.6 3.2 -- 15.8 13.8 Y P N Y N M N -- Riprap on both banks & marginal on abutments. Meander U/S with cutbanks. Overflow sections on both FPs17.3 Qimp 2700 2700 BC 8.1 3.5 L 4.6 6.1 3.9 -- 10.6 11.2 Y P N Y Y Y N -- Sparce riprap on both abutment faces. Blowhole D/S. Meander with cutbanks U/S. Overflow sections on both FPs.15.4 Q500 19900 19900 REG 20.4 14.4 L -- -- 10.6 -- 17.7 19.6 P Y P Y N Y Y Y Extensive riprap on RB and abutment. Bedrock exposed in channel bottom U/S. No LFP.

-- Q500 11000 11000 REG 13.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Very large opening. Protected banks. Cutbank on U/S RB. Bridge is not a critical concern. Photos taken.10.6 Q500 20700 20700 REG 13.5 9.2 L 16.5 15.6 6.4 3.9 16.1 14.5 N N N Y D M N -- Moderate riprap on both abutments. Significant debris at bridge opening in channel. Steep cutbanks on both banks U/S.14.9 Q500 7950 7950 REG 14.0 19.3 L -- -- 7.8 -- 19.4 17.7 N N N Y D N -- -- No riprap. Sheet pile caissons exist around exposed footing15.9 Q500 92800 92800 REG 19.7 10.6 L 17.0 23.4 17.4 8.1 19.4 20.2 N N N Y N M N -- Boulder sized riprap on right abutment and bank. Bank slumped to 75 ft U/S, Erosion 100 yds U/S. Debris on pier.

-- Q500 18900 18900 REG 17.4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with I551514.0 Q500 12400 12400 REG 12.9 18.0 L 20.7 23.1 8.5 -- 20.1 20.0 N P N Y Y N -- -- Local scour observed at setback pier sets.

9.6 Q500 19900 17711 EST 12.1 0.0 L -- 18.8 14.8 4.9 13.8 13.8 N P N Y Y N -- -- Slight local scour at setbacks.18.6 Qimp 26900 26900 BC 18.0 6.9 L -- -- 19.6 -- 7.0 15.8 Y P N Y N Y Y Y Moderate protection on both banks & abutments. Rock levee on U/S RB18.9 Q500 7450 7450 REG 15.6 15.6 L -- -- 4.8 5.1 14.0 18.4 P Y N Y D M N -- Riprap on R abutment. No protection on L. L abutment partially exposed lip.12.7 Q500 18900 18900 REG 18.6 3.2 L 20.1 16.7 8.7 -- 15.8 15.8 N N N N N N -- -- Riprap on both banks, but above channel level on setbacks only.11.3 Qimp 4500 4500 BC 10.3 3.6 L 6.4 -- 3.9 -- 11.9 3.5 Y Y N Y D N -- -- Very slight riprap protection on LB. Small amount of contraction scour on RB.20.6 Qimp 6780 6780 BC 13.1 19.9 L -- -- 3.9 -- 19.4 19.4 Y Y N Y D M N -- R abutment protected. Severe erosion gullies & mass wasting on LB/abutment. Concrete connector caps visible on both pile bents.26.6 Qimp 11500 11500 BC 16.0 10.6 L -- -- 7.7 -- 17.8 19.3 Y P N Y N M N -- Large boulder riprap sparingly on both L & R banks. Channelized stream.

8.1 Qimp 2000 2000 BC 8.1 4.0 L -- -- 3.9 -- 9.0 5.9 P P N N N N -- -- Gully erosion on L & R banks26.6 Qimp 4580 4580 BC 11.6 6.4 L -- -- 4.7 -- 14.2 17.1 Y P N Y N M N -- Some erosion on L & R banks and abutments29.4 Qimp 4200 4200 BC 10.9 3.1 L -- -- 4.5 -- 18.6 18.6 Y P N Y N M N -- Big block riprap16.0 Qimp 2560 2560 BC 7.8 5.5 L -- -- 3.9 -- 9.0 12.2 Y Y N Y N N N Y No riprap on banks or abutments. Grader blades on RB are placed in a spur dike fashion with wire mesh & cobbles inside the cavity. Sand channel.

-- Q500 48200 48200 REG 23.7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- RB & abutment well protected recently. LB lined with new riprap for approx 1 bridge length U/S. Photos taken13.1 Q500 5830 5830 REG 12.5 5.4 L -- 7.9 3.2 -- 13.6 15.8 N N N Y Y N -- -- Deeply incised channel with large meander & cutbank U/S. Cutbanks & slumps under bridge on both banks. Flow barely gets out of banks.

5.5 Q500 4930 4930 REG 10.2 1.8 L 8.5 8.5 5.1 -- 14.0 11.4 N N N Y D N -- -- Deeply incised channel. Bridge built with 20 deg skew, channel approaches at 10 deg. Channel migrating to left, widening under bridge.-- Q500 27700 27700 REG 18.1 -- -- -- -- -- -- -- -- P P N Y Y Y Y -- Leveed channel on MO River FP, so no individual FPs. Channel curves from RFP immediately U/S, then bends to LFP D/S. Outside of U/S bend heavily riprapped, RB & abutment riprapped. Blowhole D/S RB. Small probability of pier scour.

15.1 Qimp 3960 3960 BC 8.5 5.0 L 3.7 1.6 6.4 -- 13.6 9.4 Y P N Y Y N -- -- Bridge built with 45 deg skew, channel approaches at 15 deg. Meander bends with cutbanks U/S & D/S. Debris on pile bent exacerbates scour. Some concrete debris on LB. Small riprap on U/S face of R embankment19.6 Q500 20000 20000 REG 19.1 18.3 L -- -- 7.8 -- 21.7 21.8 N N N Y N M N -- Well protected L & R abutments. Gully erosion on L & R banks.12.1 Q500 6660 6660 REG 12.3 15.1 L -- -- 4.8 -- 16.7 15.2 N N N Y N N -- -- Both banks well protected. Boulder-sized riprap. No abutment protection.

-- Q500 7770 7770 REG 16.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Well protected banks. L & R U/S embankments extend U/S approx 50 feet, thereby acting as spur dikes. Insignificant velocities through this bridge (this is a relief bridge). Small amount of contraction scour in main channel area.21.2 Q500 24500 24500 REG 20.2 16.6 L -- 22.9 7.7 10.6 22.7 23.8 N P N Y Y Y Y -- Dual bridge w/ A3841 U/S & G815R D/S. U/S bridge well protected with designed riprap protectionn on abutments and banks. D/S bridge has riprap on abutments and banks--probably placed at time of new bridge construction. Mass wasting evident U/S & D/S20.8 Q500 5270 5270 REG 12.9 2.8 L -- -- 6.4 -- 23.5 24.5 N P N Y Y N -- -- Severe mass wasting on LB--all footings exposed. Battered H-pile are added on. Live bed scour occuring in channel. Photos taken.40.7 Q500 6570 6570 REG 23.4 28.2 L -- -- 6.5 -- 46.0 46.9 Y Y N Y Y M N -- Abutment footings exposed. All footings exposed. Cobbling on both banks. Photos taken.

9.4 Q500 6140 6140 REG 11.5 0.6 L -- -- 6.4 -- 13.1 13.1 N N N Y Y M N -- Old abutment U/S approx 1 bridge length. Concrete chunks on R abutment. Inlaid cobbling on but abutments. Mass wasting on RB. Footing exposure (slight) on R pier set. Doesn't get out onto FPs.20.9 Qimp 4380 4380 BC 11.0 5.6 L -- -- 5.5 -- 13.5 13.3 Y Y N Y N N -- -- 2 concrete connectors exposed on L pile bent.16.5 Q500 15900 15900 REG 19.1 16.1 L -- -- 4.0 -- 20.0 20.1 N N N Y ? N -- -- No banks or abutment protection. No riprap.31.9 Qimp 5610 5610 BC 11.7 14.0 L -- -- 4.7 -- 24.0 23.0 Y Y N Y ? M N -- Large concrete slabs on both banks. Moderate debris on U/S LB.10.3 Q500 5130 5130 REG 13.5 13.7 L -- -- 4.5 -- 14.7 7.0 Y Y N Y ? M N -- Concrete connections visible on L pile bent. Concrete slabs on both LB & RB.33.8 Qimp 2290 2290 BC 8.3 5.2 L -- -- 3.9 -- 13.5 17.1 Y Y N Y N N -- -- L abutment built on old concrete abutment.15.5 Q500 5280 5280 REG 13.7 18.9 L -- -- 3.9 -- 18.6 19.1 Y P N Y Y N -- -- Mass wasting on both banks at bridge. Overflow section on RFP; Qimp = Q500. Well vegetated banks U/S. Terrace on U/S LB approx 1.5 ft deeper than FP depth

8.9 Qimp 13800 13800 BC 12.7 3.2 L -- -- 18.5 5.5 5.9 -- Y Y N Y N M N -- Large concrete slabs on both banks. Debris up in bridge rafters. Photos taken.16.9 Qimp 2770 2770 BC 8.0 9.6 L -- -- 7.9 -- 11.5 7.8 Y P N Y Y M N -- Concrete debris on R abutment face. Cutbanks & mass wasting on LB at bridge & D/S. Old bridge piles just D/S. Overflow section on RFP principally, but also on LFP.


105657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100

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document.xls

District 02

Comment codes:

Notes


On edge of MO River FP. Known from observation to be subject to backwater. Webwalls on pier stop approx 10 ft above ground. Road & edge of FP act as a funnel.Riprap on both banks at bridge and U/S. Discontinuous levees on U/S banks will control flow (flow behind levees will be slack)--therefore no FP data. FP flow will be carried by overflow sections. Cutbanks and fallen trees on all banks.Riprap on RB at & U/S of bridge. Cutbanks & mass wasting on all banks U/S and D/S.Channel along L edge of FP. Road overflow sections on both FPs. Cutbanks on both banks U/S & D/S.Cutbanks on LB under bridge. Discontinuous levees on both U/S banks.Riprap on both banks & marginal on abutments. Meander U/S with cutbanks. Overflow sections on both FPsSparce riprap on both abutment faces. Blowhole D/S. Meander with cutbanks U/S. Overflow sections on both FPs.Extensive riprap on RB and abutment. Bedrock exposed in channel bottom U/S. No LFP.Very large opening. Protected banks. Cutbank on U/S RB. Bridge is not a critical concern. Photos taken.Moderate riprap on both abutments. Significant debris at bridge opening in channel. Steep cutbanks on both banks U/S.No riprap. Sheet pile caissons exist around exposed footingBoulder sized riprap on right abutment and bank. Bank slumped to 75 ft U/S, Erosion 100 yds U/S. Debris on pier.Replaced with I5515Local scour observed at setback pier sets.Slight local scour at setbacks.Moderate protection on both banks & abutments. Rock levee on U/S RBRiprap on R abutment. No protection on L. L abutment partially exposed lip.Riprap on both banks, but above channel level on setbacks only.Very slight riprap protection on LB. Small amount of contraction scour on RB.R abutment protected. Severe erosion gullies & mass wasting on LB/abutment. Concrete connector caps visible on both pile bents.Large boulder riprap sparingly on both L & R banks. Channelized stream.Gully erosion on L & R banksSome erosion on L & R banks and abutmentsBig block riprapNo riprap on banks or abutments. Grader blades on RB are placed in a spur dike fashion with wire mesh & cobbles inside the cavity. Sand channel.RB & abutment well protected recently. LB lined with new riprap for approx 1 bridge length U/S. Photos takenDeeply incised channel with large meander & cutbank U/S. Cutbanks & slumps under bridge on both banks. Flow barely gets out of banks.Deeply incised channel. Bridge built with 20 deg skew, channel approaches at 10 deg. Channel migrating to left, widening under bridge.Leveed channel on MO River FP, so no individual FPs. Channel curves from RFP immediately U/S, then bends to LFP D/S. Outside of U/S bend heavily riprapped, RB & abutment riprapped. Blowhole D/S RB. Small probability of pier scour.Bridge built with 45 deg skew, channel approaches at 15 deg. Meander bends with cutbanks U/S & D/S. Debris on pile bent exacerbates scour. Some concrete debris on LB. Small riprap on U/S face of R embankmentWell protected L & R abutments. Gully erosion on L & R banks.Both banks well protected. Boulder-sized riprap. No abutment protection.Well protected banks. L & R U/S embankments extend U/S approx 50 feet, thereby acting as spur dikes. Insignificant velocities through this bridge (this is a relief bridge). Small amount of contraction scour in main channel area.Dual bridge w/ A3841 U/S & G815R D/S. U/S bridge well protected with designed riprap protectionn on abutments and banks. D/S bridge has riprap on abutments and banks--probably placed at time of new bridge construction. Mass wasting evident U/S & D/SSevere mass wasting on LB--all footings exposed. Battered H-pile are added on. Live bed scour occuring in channel. Photos taken.Abutment footings exposed. All footings exposed. Cobbling on both banks. Photos taken.Old abutment U/S approx 1 bridge length. Concrete chunks on R abutment. Inlaid cobbling on but abutments. Mass wasting on RB. Footing exposure (slight) on R pier set. Doesn't get out onto FPs.2 concrete connectors exposed on L pile bent.No banks or abutment protection. No riprap.Large concrete slabs on both banks. Moderate debris on U/S LB.Concrete connections visible on L pile bent. Concrete slabs on both LB & RB.L abutment built on old concrete abutment.Mass wasting on both banks at bridge. Overflow section on RFP; Qimp = Q500. Well vegetated banks U/S. Terrace on U/S LB approx 1.5 ft deeper than FP depthLarge concrete slabs on both banks. Debris up in bridge rafters. Photos taken.Concrete debris on R abutment face. Cutbanks & mass wasting on LB at bridge & D/S. Old bridge piles just D/S. Overflow section on RFP principally, but also on LFP.


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document.xls

District 02

On edge of MO River FP. Known from observation to be subject to backwater. Webwalls on pier stop approx 10 ft above ground. Road & edge of FP act as a funnel.Riprap on both banks at bridge and U/S. Discontinuous levees on U/S banks will control flow (flow behind levees will be slack)--therefore no FP data. FP flow will be carried by overflow sections. Cutbanks and fallen trees on all banks.Riprap on RB at & U/S of bridge. Cutbanks & mass wasting on all banks U/S and D/S.Channel along L edge of FP. Road overflow sections on both FPs. Cutbanks on both banks U/S & D/S.Cutbanks on LB under bridge. Discontinuous levees on both U/S banks.Riprap on both banks & marginal on abutments. Meander U/S with cutbanks. Overflow sections on both FPsSparce riprap on both abutment faces. Blowhole D/S. Meander with cutbanks U/S. Overflow sections on both FPs.Extensive riprap on RB and abutment. Bedrock exposed in channel bottom U/S. No LFP.Very large opening. Protected banks. Cutbank on U/S RB. Bridge is not a critical concern. Photos taken.Moderate riprap on both abutments. Significant debris at bridge opening in channel. Steep cutbanks on both banks U/S.No riprap. Sheet pile caissons exist around exposed footingBoulder sized riprap on right abutment and bank. Bank slumped to 75 ft U/S, Erosion 100 yds U/S. Debris on pier.Replaced with I5515Local scour observed at setback pier sets.Slight local scour at setbacks.Moderate protection on both banks & abutments. Rock levee on U/S RBRiprap on R abutment. No protection on L. L abutment partially exposed lip.Riprap on both banks, but above channel level on setbacks only.Very slight riprap protection on LB. Small amount of contraction scour on RB.R abutment protected. Severe erosion gullies & mass wasting on LB/abutment. Concrete connector caps visible on both pile bents.Large boulder riprap sparingly on both L & R banks. Channelized stream.Gully erosion on L & R banksSome erosion on L & R banks and abutmentsBig block riprapNo riprap on banks or abutments. Grader blades on RB are placed in a spur dike fashion with wire mesh & cobbles inside the cavity. Sand channel.RB & abutment well protected recently. LB lined with new riprap for approx 1 bridge length U/S. Photos takenDeeply incised channel with large meander & cutbank U/S. Cutbanks & slumps under bridge on both banks. Flow barely gets out of banks.Deeply incised channel. Bridge built with 20 deg skew, channel approaches at 10 deg. Channel migrating to left, widening under bridge.Leveed channel on MO River FP, so no individual FPs. Channel curves from RFP immediately U/S, then bends to LFP D/S. Outside of U/S bend heavily riprapped, RB & abutment riprapped. Blowhole D/S RB. Small probability of pier scour.Bridge built with 45 deg skew, channel approaches at 15 deg. Meander bends with cutbanks U/S & D/S. Debris on pile bent exacerbates scour. Some concrete debris on LB. Small riprap on U/S face of R embankmentWell protected L & R abutments. Gully erosion on L & R banks.Both banks well protected. Boulder-sized riprap. No abutment protection.Well protected banks. L & R U/S embankments extend U/S approx 50 feet, thereby acting as spur dikes. Insignificant velocities through this bridge (this is a relief bridge). Small amount of contraction scour in main channel area.Dual bridge w/ A3841 U/S & G815R D/S. U/S bridge well protected with designed riprap protectionn on abutments and banks. D/S bridge has riprap on abutments and banks--probably placed at time of new bridge construction. Mass wasting evident U/S & D/SSevere mass wasting on LB--all footings exposed. Battered H-pile are added on. Live bed scour occuring in channel. Photos taken.Abutment footings exposed. All footings exposed. Cobbling on both banks. Photos taken.Old abutment U/S approx 1 bridge length. Concrete chunks on R abutment. Inlaid cobbling on but abutments. Mass wasting on RB. Footing exposure (slight) on R pier set. Doesn't get out onto FPs.2 concrete connectors exposed on L pile bent.No banks or abutment protection. No riprap.Large concrete slabs on both banks. Moderate debris on U/S LB.Concrete connections visible on L pile bent. Concrete slabs on both LB & RB.L abutment built on old concrete abutment.Mass wasting on both banks at bridge. Overflow section on RFP; Qimp = Q500. Well vegetated banks U/S. Terrace on U/S LB approx 1.5 ft deeper than FP depthLarge concrete slabs on both banks. Debris up in bridge rafters. Photos taken.Concrete debris on R abutment face. Cutbanks & mass wasting on LB at bridge & D/S. Old bridge piles just D/S. Overflow section on RFP principally, but also on LFP.

BN BO BP123456789

105657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100

document.xls

District 02



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A1180A&B BLACKWELL CR US036 LIVINGSTON 1 103 7.37 Q100 3790 3790 REG 9.8 18.1 L -- -- 8.1 -- 15.0A3595 NO CR US065 LIVINGSTON 1 231 67.5 Q100 11400 11400 REG 11.6 2.8 L 20.9 17.9 9.2 9.7 19.3A3597 CROOKED CR US065 LIVINGSTON 1 157 13.4 Q100 5410 5410 REG 11.2 16.6 L 19.3 -- 13.6 -- 16.9A3851 SHOAL CR US065 LIVINGSTON 1 226 1.29 Q100 3130 3130 REG 5.3 -- -- -- -- -- -- --G6081 MUDDY CR DD US036 LIVINGSTON 1 184 85.3 Q100 13100 13100 REG 14.2 -- -- -- -- -- -- --G614 MEDICINE CR US036 LIVINGSTON 1 396 421 Q100 31300 31300 REG 15.1 -- -- -- -- -- -- --H844 MOUND CR US065 LIVINGSTON 1 158 13.5 Q100 5580 5580 REG 10.2 12.0 L -- 12.9 6.4 -- 16.4L156 MEDICINE CR US036 LIVINGSTON 1 395 420 Q100 31100 31100 REG 15.1 -- -- -- -- -- -- --P932 SHOAL CR DD RT0DD LIVINGSTON 1 265 578 Q100 36000 25000 BC 17.3 0.0 L 13.4 8.5 9.6 -- 8.6S472 CROOKED CR RT00K LIVINGSTON 1 106 15.9 Q100 5180 5180 REG 11.3 21.4 L -- -- 3.2 -- 16.6S639 SHOAL CR DD RT00C LIVINGSTON 1 178 582 Q100 35600 20610 BC 20.2 0.0 L -- -- 10.6 -- 29.6T326 RAT SNAKE CR RT00D LIVINGSTON 1 92 5.83 Q100 3780 3780 REG 12.4 5.3 L -- -- 6.4 -- 11.3T378 INDIAN CR RT00N LIVINGSTON 1 99 21.6 Q100 7180 5250 BC 11.9 2.0 L -- -- 3.2 -- 11.5T379 SHOAL CR RT00C LIVINGSTON 1 175 581 Q100 9300 9300 REG 12.8 3.6 L 19.0 -- 6.4 3.2 24.7X148 OLD MEDICINE CR RT00K LIVINGSTON 1 71 5.53 Q100 3260 3260 REG 10.9 -- -- -- -- -- -- --X956 GEES CR RT00W LIVINGSTON 1 93 11.6 Q100 5880 5880 REG 13.3 23.1 L -- -- 3.9 -- 18.4G07502 MUSSEL FK US036 MACON 1 325 141 Q100 16900 16900 REG 13.9 9.2 L 13.3 14.8 12.7 7.7 16.6G07542 CHARITON RI US036 MACON 1 175 12.6 Q100 4180 4180 REG 9.0 11.0 L 16.0 16.0 3.9 -- 11.7L569 CHARITON RI US036 MACON 1 253 52.6 Q100 10000 10000 REG 12.9 5.5 L 18.7 17.8 7.7 -- 17.7N972 BRUSH CR RT0WW MACON 1 148 41.9 Q100 8910 8910 REG 13.5 26.1 L -- -- 4.5 -- 20.4P105 E FK CHARITON RI RT00T MACON 1 113 135 Q100 15700 9875 BC 16.1 0.0 L -- -- 3.3 -- 9.7S996 COTTONWOOD CR MO156 MACON 1 64 2.87 Q100 2490 2490 REG 11.1 12.6 L -- -- 6.7 -- 12.8X104 LONG BR RT00J MACON 1 86 20.5 Q100 7440 5525 BC 13.8 6.4 L -- -- 5.4 -- 38.4X122 CHARITON RI RT00J MACON 1 84 4.67 Q100 2630 2630 REG 8.8 16.9 L -- -- 3.2 -- 14.4A2633 W MUDDY CR US136 MERCER 1 119 4.78 Q100 2960 2960 REG 9.2 9.8 L -- -- 7.6 -- 17.0A4436 SANDY CR US136 MERCER 1 166 17.4 Q100 6220 6220 REG 12.2 3.7 L -- -- 6.2 -- 11.6H956 W MEDICINE CR US136 MERCER 1 178 20.2 Q100 6270 6270 REG 9.4 1.9 L 14.9 16.4 14.8 9.2 14.8J657 THOMPSON FK OF US136 MERCER 1 203 889 Q100 46700 1494 EST 3.6 0.0 L -- -- 3.8 -- 12.9N02531 HONEY CR RT0JJ MERCER 1 117 18.6 Q100 5530 5530 REG 13.5 12.5 L -- -- 5.5 -- 12.0N02541 HONEY CR RT0JJ MERCER 1 113 20.6 Q100 6130 6130 REG 14.3 12.8 L -- -- 3.9 -- 14.6N08551 WELDON FK GRAND RI RT0BB MERCER 1 105 6.89 Q100 4150 4150 REG 12.8 18.6 L -- -- 5.5 -- 17.1P06701 BRUSHY CR RT00P MERCER 1 99 11.0 Q100 5230 5230 REG 12.3 6.1 L -- -- 4.7 -- 20.2P180 BIG BR RT00P MERCER 1 102 8.61 Q100 4560 4560 REG 11.4 14.4 L -- -- 5.3 -- 16.1R499 GRAND RI RT00D MERCER 1 594 480 Q100 36400 36400 REG 14.7 6.5 L -- 8.0 9.6 6.4 11.9S03711 HONEY CR RT00E MERCER 1 107 9.26 Q100 4080 4080 REG 9.7 14.9 L -- -- 5.2 -- 24.6T00891 W MEDICINE CR RT00M MERCER 1 102 6.20 Q100 3300 3300 REG 8.9 8.5 L -- -- 3.9 -- 14.1X01241 E MUDDY CR RT00E MERCER 1 150 65.6 Q100 11700 11700 REG 17.5 4.6 L -- -- 3.9 -- 23.5X123 W MUDDY CR RT00D MERCER 1 92 19.3 Q100 6070 3233 BC 10.1 7.4 L -- -- 7.7 -- 33.4J400 ELM BR US136 PUTNAM 1 127 7.92 Q100 4020 4020 REG 9.2 14.9 L -- -- 7.6 -- 13.0J406 W LOCUST CR US136 PUTNAM 1 298 35.7 Q100 8780 8780 REG 9.4 0.0 L -- 19.4 9.8 -- 8.8J410 E LOCUST CR US136 PUTNAM 1 297 72.2 Q100 12700 12700 REG 11.4 1.0 L -- -- 9.9 -- 10.5J689 BIG MEDICINE CR US136 PUTNAM 1 362 118 Q100 15000 15000 REG 15.2 1.6 L -- -- 6.7 -- 12.1K711 BLACK BIRD CR MO005 PUTNAM 1 212 25.7 Q100 8510 8510 REG 10.9 4.1 L -- -- 7.6 -- 19.8L256 N BLACK BIRD CR MO129 PUTNAM 1 127 41.9 Q100 10100 10100 REG 15.5 13.5 L 21.2 -- 3.3 -- 19.7N29 MEDICINE CR MO139 PUTNAM 1 98 14.2 Q100 4700 4700 REG 12.3 15.5 L -- -- 4.7 -- 18.3


10101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145

J6


M6


C7


D7


E7


G7


P10


document.xls

District 02


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]17.1 Q500 5160 5160 REG 11.6 22.9 L -- -- 8.1 -- 18.2 19.8 N N N Y N Y Y -- Boulder sized riprap at L & R abutments. Octagonal shaped pile set. Moderate gully erosion on LB & RB.14.7 Q500 15400 15400 REG 13.9 5.5 L 25.0 21.8 9.2 9.7 21.4 19.1 N N N Y ? M N -- Both abutments moderately protected with cobbles. Some local scour around setback pile bents.12.8 Q500 7320 7320 REG 13.1 20.7 L 25.1 -- 13.7 -- 19.9 16.5 N N N Y ? N -- -- Slight erosion on both banks. RB has severe mass wasting.

-- Q500 4100 4100 REG 6.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Not assessed due to bank & abutment protection. Q's are insignificant considering size of bridge opening; however, backwater from Grand River has occurred, as evidenced by high water marks. Photos taken.-- Q500 17600 17600 REG 17.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Road construction in median-- Q500 41500 41500 REG 17.9 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Road construction--adding D/S bridge.

19.3 Q500 7540 7540 REG 12.1 14.6 L -- 17.0 6.4 -- 19.5 20.9 N N P Y N M N -- Old cobbling on both abutments. Massive debris pile at U/S low flow face. Small county bridge ~ 3 bridge lengths U/S. Debris pile may cause future problems.-- Q500 41300 41300 REG 17.9 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Fixing bridge.

8.6 Qimp 14000 14000 BC 12.3 0.9 L 0.3 -- 9.5 -- -- -- Y Y N Y N N -- -- No riprap on either side. Levee confining flow on both sides.15.2 Q500 7070 7070 REG 13.6 30.0 L -- -- 3.2 -- 20.0 19.4 Y Y N Y ? N -- -- Old concrete abutment at REW. Exposed concrete connectors on pile bents.22.3 Qimp 5620 5620 BC 9.2 1.2 L -- -- 10.4 -- -- -- Y Y N Y N N -- -- Q100 produces very high WS elevations. Over road south of bridge. FPs are protected by levees to an extent. RR tracks serve as LFP levee.11.3 Q500 5110 5110 REG 14.1 10.9 L -- -- 6.4 -- 14.5 14.5 N N N Y N M N -- Boulder sized riprap on L bank at U/S meander. No riprap on RB or abutment. Mass wasting prevalent on both banks.

7.8 Qimp 3320 3320 BC 9.0 1.5 L -- -- 3.2 -- -- -- Y Y N Y ? M N -- LB & RB moderately protected. Significant debris on U/S LB.20.5 Q500 12600 12600 REG 14.8 6.3 L 25.4 -- 6.4 3.3 31.6 27.4 N N N Y N M N -- Old cobble wall on R abutment. Moderate erosion on RB & abutment. Contraction scour on L setback. Bluff on RB. LFP is confined

-- Q500 4460 4460 REG 13.1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Done in Level II as relief bridge to A2078.17.6 Q500 7870 7870 REG 15.9 31.6 L -- -- 3.9 -- 21.1 20.8 N P N Y N M N -- LB has substantial riprap down into channel. Severe cutbank & mass wasting on RB.17.1 Q500 22600 22600 REG 16.2 13.7 L 18.2 19.3 12.8 7.7 20.1 20.4 N P N P Y N -- -- Minimal amount of concrete debris and small riprap on abutment faces and setback surfaces. Contraction scour on both setbacks. Mass wasting on RB at bridge and U/S LB15.4 Q500 5750 5750 REG 11.0 9.9 L 19.1 19.1 3.9 -- 11.5 15.2 Y Y N N Y N -- -- Relief bridge over slough of Chariton River; Qs calculated from delineation of slough, but bridge will carry main channel overflow. Given Qs cause pressure flow and impendent road overtopping, so representative11.3 Q500 13500 13500 REG 13.8 6.2 L 23.9 22.7 7.7 -- 19.4 13.1 P P N Y Y M N -- Levee on U/S RB limits flow to channel. Channel on R edge of FP. Exposed footing at pier on RB. Concrete debris & riprap on both abutment faces & around L setback pier. Washouts & contraction scour on both setbacks; left filled with riprap. Photos taken20.0 Q500 12100 12100 REG 16.0 24.7 L -- -- 4.6 -- 19.9 19.5 P Y N Y Y Y N -- New riprap on both abutments and psuedo-setbacks. Not "designed" for scour, but will stop flow impinging on RB. Possible road overflow on LFP. Substantial meander immediately U/S of bridge, w/ cutbanks.

9.7 Qimp 4050 4050 BC 9.9 2.9 L -- -- 3.2 -- -- -- Y N N Y Y Y N -- Riprap on both banks. Cutbanks U/S & D/S. U/S channel widened to model expected flow scenario. RR embankment U/S which will control & limit FP flow at bridge; however gap between RR & road will allow flow to reach overflow section.15.6 Q500 3390 3390 REG 13.4 17.6 L -- -- 6.7 -- 17.0 19.5 P P N Y N Y ? -- Both banks and abutments fully protected--both U/S banks as well.39.0 Qimp 3610 3610 BC 10.7 8.6 L -- -- 5.3 -- 31.6 32.8 Y Y N Y ? N -- -- No riprap. Substantial erosion on LB.12.7 Q500 3620 3620 REG 10.7 23.3 L -- -- 3.2 -- 17.9 16.1 N P N Y ? Y N -- Banks fully protected.17.0 Q500 4050 4050 REG 10.9 14.2 L -- -- 7.6 -- 19.7 19.7 N N N N N N -- -- Regulating reservoir U/S. No protection. Spill-over spillway--corrugated metal culvert underneath 12 -18"11.4 Q500 8390 8390 REG 13.8 9.6 L -- -- 6.2 -- 14.5 14.4 N N N P N M N -- Large concrete chunks on LB around bents. No riprap on abutments13.9 Q500 8510 8510 REG 11.3 2.6 L 18.5 20.1 14.8 9.2 18.4 17.5 N N N Y Y N -- -- No abutment protection--footing exposure. Local scour around bents on setbacks. Severe cutbank on RB--footing exposure at center bent. Photos taken.12.9 Q500 61600 1971 EST 4.2 0.0 L -- -- 3.8 -- 14.2 14.2 N P N N N N -- -- One of 5 bridges on FP, Q's determined by conveyance. Main bridge J655 not flagged.15.4 Q500 7550 7550 REG 15.3 17.5 L -- -- 5.5 -- 15.6 18.9 N N N Y N Y Y -- Large concrete chunks/asphalt on both banks. Roadside ditches on both U/S banks--cutbanks.13.2 Q500 8330 8330 REG 16.2 17.5 L -- -- 4.0 -- 18.2 16.8 N N N Y N Y Y -- Well protected banks--large concrete/asphalt chunks. No abutment protection. Large rootwads in U/S channel. Severe cutbanks on both U/S banks.16.7 Q500 5610 5610 REG 13.5 20.4 L -- -- 5.5 -- 18.4 18.1 N N N Y N Y Y -- Large broken concrete chunks on both banks. Sand channel w/ sharp meander & cutbank ~ 1 bridge length U/S. Concrete debris on RB to mitigate cutbank.27.9 Q500 7050 7050 REG 14.2 15.8 L -- -- 4.7 -- 26.7 34.4 N N N Y ? M ? -- Large concrete slabs on LB; riprap & heavy debris on L abutment & LB. Massive debris obstruction ~ 1 bridge length U/S crossing entire channel--mass wasting induced as a result. Mild local scour at bents.14.0 Q500 6160 6160 REG 12.9 17.2 L -- -- 5.3 -- 18.8 16.7 N P N Y N M Y -- Large concrete slabs on LB & RB. R abutmen has cobble-sized riprap. Gully erosion on LB & abutment. Mild contraction scour on R setback.18.1 Q500 48000 48000 REG 17.2 8.7 L -- 14.9 9.6 6.4 16.7 20.9 N N N Y ? Y Y Y 6-7 spur dikes on RB of channel. Riprap on RB. Extensive debris in channel (pt bar). Rock outcrop/bluff on L side. RR embankment serves as levee on RFP.26.8 Q500 5570 5570 REG 11.7 19.9 L -- -- 5.2 -- 31.6 33.8 N N N Y ? M N -- Gully erosion on L & R banks. Blowhole on RB under bridge--possible contraction scour.17.6 Q500 4520 4520 REG 10.7 13.8 L -- -- 3.9 -- 17.5 20.1 N N N Y N N -- -- Erosion/scour around bents on both banks.23.5 Q500 15700 15700 REG 20.2 5.3 L -- -- 3.9 -- 32.8 32.8 N N N Y N M N -- Large concrete slabs on both banks extending down into sand channel. Some debris on bents. Deeply incised channel--Q500 doesn't overtop banks.31.5 Qimp 395 395 BC 4.2 1.1 L -- -- 7.5 -- 5.6 0.9 Y Y N Y N M N -- Riprap on L abutment on into LB. Steep cutbanks.13.0 Q500 5460 5460 REG 10.9 21.5 L -- -- 7.6 -- 16.1 16.1 N N N Y N M ? -- Inlaid cobbling on both abutments. Erosion gullies around bents on setbacks.

8.8 Q500 11800 11800 REG 10.3 0.0 L -- 23.8 9.8 -- 11.7 11.7 N N N Y N M ? -- Inlaid cobbling on both abutments. Severe slumping on RB under bridge. Some gully erosion on LB under bridge.10.5 Q500 17000 17000 REG 12.7 1.1 L -- -- 9.9 -- 13.1 13.1 N N N Y N M ? -- Inlaid cobbling on both abutments. Concrete debris in U/S L drain ditch. Mild contraction scour/erosion on both setbacks. Fill has been added on fill holes near setback bents.12.1 Q500 20100 20100 REG 16.8 1.8 L -- -- 6.7 -- 15.2 15.2 N N N Y N M ? -- Riprap cobbling on both abutments.19.1 Q500 11400 11400 REG 12.4 2.5 L 17.6 -- 7.7 -- 25.1 24.8 N N N Y Y N -- -- No protection. Contraction scour on L setback. Substantial sloughing and mass wasting at both banks under bridge. Photos taken.19.7 Q500 13500 13500 REG 18.5 17.7 L 27.7 -- 3.3 -- 22.3 22.3 N N N Y N M N -- No abutment protection; riprap on both banks. Minor mass wasting U/S.17.8 Q500 6440 6440 REG 14.3 20.0 L -- -- 4.7 -- 20.6 20.4 N N N Y N M N -- Poured concrete on L abutment. Scattered block rock on R abutment.


10101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145

W6


Z6


AC10


document.xls

District 02

Comment codes:

Notes


Boulder sized riprap at L & R abutments. Octagonal shaped pile set. Moderate gully erosion on LB & RB.Both abutments moderately protected with cobbles. Some local scour around setback pile bents.Slight erosion on both banks. RB has severe mass wasting.Not assessed due to bank & abutment protection. Q's are insignificant considering size of bridge opening; however, backwater from Grand River has occurred, as evidenced by high water marks. Photos taken.Road construction in medianRoad construction--adding D/S bridge.Old cobbling on both abutments. Massive debris pile at U/S low flow face. Small county bridge ~ 3 bridge lengths U/S. Debris pile may cause future problems.Fixing bridge.No riprap on either side. Levee confining flow on both sides.Old concrete abutment at REW. Exposed concrete connectors on pile bents.Q100 produces very high WS elevations. Over road south of bridge. FPs are protected by levees to an extent. RR tracks serve as LFP levee.Boulder sized riprap on L bank at U/S meander. No riprap on RB or abutment. Mass wasting prevalent on both banks.LB & RB moderately protected. Significant debris on U/S LB.Old cobble wall on R abutment. Moderate erosion on RB & abutment. Contraction scour on L setback. Bluff on RB. LFP is confinedDone in Level II as relief bridge to A2078.LB has substantial riprap down into channel. Severe cutbank & mass wasting on RB.Minimal amount of concrete debris and small riprap on abutment faces and setback surfaces. Contraction scour on both setbacks. Mass wasting on RB at bridge and U/S LBRelief bridge over slough of Chariton River; Qs calculated from delineation of slough, but bridge will carry main channel overflow. Given Qs cause pressure flow and impendent road overtopping, so representativeLevee on U/S RB limits flow to channel. Channel on R edge of FP. Exposed footing at pier on RB. Concrete debris & riprap on both abutment faces & around L setback pier. Washouts & contraction scour on both setbacks; left filled with riprap. Photos takenNew riprap on both abutments and psuedo-setbacks. Not "designed" for scour, but will stop flow impinging on RB. Possible road overflow on LFP. Substantial meander immediately U/S of bridge, w/ cutbanks.Riprap on both banks. Cutbanks U/S & D/S. U/S channel widened to model expected flow scenario. RR embankment U/S which will control & limit FP flow at bridge; however gap between RR & road will allow flow to reach overflow section.Both banks and abutments fully protected--both U/S banks as well.No riprap. Substantial erosion on LB.Banks fully protected.Regulating reservoir U/S. No protection. Spill-over spillway--corrugated metal culvert underneath 12 -18"Large concrete chunks on LB around bents. No riprap on abutmentsNo abutment protection--footing exposure. Local scour around bents on setbacks. Severe cutbank on RB--footing exposure at center bent. Photos taken.One of 5 bridges on FP, Q's determined by conveyance. Main bridge J655 not flagged.Large concrete chunks/asphalt on both banks. Roadside ditches on both U/S banks--cutbanks.Well protected banks--large concrete/asphalt chunks. No abutment protection. Large rootwads in U/S channel. Severe cutbanks on both U/S banks.Large broken concrete chunks on both banks. Sand channel w/ sharp meander & cutbank ~ 1 bridge length U/S. Concrete debris on RB to mitigate cutbank.Large concrete slabs on LB; riprap & heavy debris on L abutment & LB. Massive debris obstruction ~ 1 bridge length U/S crossing entire channel--mass wasting induced as a result. Mild local scour at bents.Large concrete slabs on LB & RB. R abutmen has cobble-sized riprap. Gully erosion on LB & abutment. Mild contraction scour on R setback.6-7 spur dikes on RB of channel. Riprap on RB. Extensive debris in channel (pt bar). Rock outcrop/bluff on L side. RR embankment serves as levee on RFP.Gully erosion on L & R banks. Blowhole on RB under bridge--possible contraction scour.Erosion/scour around bents on both banks.Large concrete slabs on both banks extending down into sand channel. Some debris on bents. Deeply incised channel--Q500 doesn't overtop banks.Riprap on L abutment on into LB. Steep cutbanks.Inlaid cobbling on both abutments. Erosion gullies around bents on setbacks.Inlaid cobbling on both abutments. Severe slumping on RB under bridge. Some gully erosion on LB under bridge.Inlaid cobbling on both abutments. Concrete debris in U/S L drain ditch. Mild contraction scour/erosion on both setbacks. Fill has been added on fill holes near setback bents.Riprap cobbling on both abutments.No protection. Contraction scour on L setback. Substantial sloughing and mass wasting at both banks under bridge. Photos taken.No abutment protection; riprap on both banks. Minor mass wasting U/S.Poured concrete on L abutment. Scattered block rock on R abutment.


10101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145

AT10


document.xls

District 02

Boulder sized riprap at L & R abutments. Octagonal shaped pile set. Moderate gully erosion on LB & RB.Both abutments moderately protected with cobbles. Some local scour around setback pile bents.Slight erosion on both banks. RB has severe mass wasting.Not assessed due to bank & abutment protection. Q's are insignificant considering size of bridge opening; however, backwater from Grand River has occurred, as evidenced by high water marks. Photos taken.Road construction in medianRoad construction--adding D/S bridge.Old cobbling on both abutments. Massive debris pile at U/S low flow face. Small county bridge ~ 3 bridge lengths U/S. Debris pile may cause future problems.Fixing bridge.No riprap on either side. Levee confining flow on both sides.Old concrete abutment at REW. Exposed concrete connectors on pile bents.Q100 produces very high WS elevations. Over road south of bridge. FPs are protected by levees to an extent. RR tracks serve as LFP levee.Boulder sized riprap on L bank at U/S meander. No riprap on RB or abutment. Mass wasting prevalent on both banks.LB & RB moderately protected. Significant debris on U/S LB.Old cobble wall on R abutment. Moderate erosion on RB & abutment. Contraction scour on L setback. Bluff on RB. LFP is confinedDone in Level II as relief bridge to A2078.LB has substantial riprap down into channel. Severe cutbank & mass wasting on RB.Minimal amount of concrete debris and small riprap on abutment faces and setback surfaces. Contraction scour on both setbacks. Mass wasting on RB at bridge and U/S LBRelief bridge over slough of Chariton River; Qs calculated from delineation of slough, but bridge will carry main channel overflow. Given Qs cause pressure flow and impendent road overtopping, so representativeLevee on U/S RB limits flow to channel. Channel on R edge of FP. Exposed footing at pier on RB. Concrete debris & riprap on both abutment faces & around L setback pier. Washouts & contraction scour on both setbacks; left filled with riprap. Photos takenNew riprap on both abutments and psuedo-setbacks. Not "designed" for scour, but will stop flow impinging on RB. Possible road overflow on LFP. Substantial meander immediately U/S of bridge, w/ cutbanks.Riprap on both banks. Cutbanks U/S & D/S. U/S channel widened to model expected flow scenario. RR embankment U/S which will control & limit FP flow at bridge; however gap between RR & road will allow flow to reach overflow section.Both banks and abutments fully protected--both U/S banks as well.No riprap. Substantial erosion on LB.Banks fully protected.Regulating reservoir U/S. No protection. Spill-over spillway--corrugated metal culvert underneath 12 -18"Large concrete chunks on LB around bents. No riprap on abutmentsNo abutment protection--footing exposure. Local scour around bents on setbacks. Severe cutbank on RB--footing exposure at center bent. Photos taken.One of 5 bridges on FP, Q's determined by conveyance. Main bridge J655 not flagged.Large concrete chunks/asphalt on both banks. Roadside ditches on both U/S banks--cutbanks.Well protected banks--large concrete/asphalt chunks. No abutment protection. Large rootwads in U/S channel. Severe cutbanks on both U/S banks.Large broken concrete chunks on both banks. Sand channel w/ sharp meander & cutbank ~ 1 bridge length U/S. Concrete debris on RB to mitigate cutbank.Large concrete slabs on LB; riprap & heavy debris on L abutment & LB. Massive debris obstruction ~ 1 bridge length U/S crossing entire channel--mass wasting induced as a result. Mild local scour at bents.Large concrete slabs on LB & RB. R abutmen has cobble-sized riprap. Gully erosion on LB & abutment. Mild contraction scour on R setback.6-7 spur dikes on RB of channel. Riprap on RB. Extensive debris in channel (pt bar). Rock outcrop/bluff on L side. RR embankment serves as levee on RFP.Gully erosion on L & R banks. Blowhole on RB under bridge--possible contraction scour.Erosion/scour around bents on both banks.Large concrete slabs on both banks extending down into sand channel. Some debris on bents. Deeply incised channel--Q500 doesn't overtop banks.Riprap on L abutment on into LB. Steep cutbanks.Inlaid cobbling on both abutments. Erosion gullies around bents on setbacks.Inlaid cobbling on both abutments. Severe slumping on RB under bridge. Some gully erosion on LB under bridge.Inlaid cobbling on both abutments. Concrete debris in U/S L drain ditch. Mild contraction scour/erosion on both setbacks. Fill has been added on fill holes near setback bents.Riprap cobbling on both abutments.No protection. Contraction scour on L setback. Substantial sloughing and mass wasting at both banks under bridge. Photos taken.No abutment protection; riprap on both banks. Minor mass wasting U/S.Poured concrete on L abutment. Scattered block rock on R abutment.

BN BO BP123456789

10101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145

document.xls

District 02



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]N74 SHOAL CR RT0CC PUTNAM 1 89 7.26 Q100 3910 3910 REG 10.9 3.4 L -- -- 3.9 -- 12.9P01031 COON CR RT00N PUTNAM 1 87 12.4 Q100 5160 3575 BC 10.3 8.0 L -- -- 3.9 -- 18.9P374 MEDICINE CR RT00M PUTNAM 1 125 48.6 Q100 9790 5540 BC 11.2 2.4 L -- -- 6.8 -- 25.3P375 SHANKTON BR RT00M PUTNAM 1 111 26.9 Q100 7260 5165 BC 11.0 6.9 L -- -- 3.9 -- 14.8P834 BLACK BIRD CR RT00Y PUTNAM 1 113 44.9 Q100 10200 7285 BC 13.5 19.9 L -- -- 3.9 -- 20.1S584 BARBER CR MO139 PUTNAM 1 212 23.2 Q100 6400 6400 REG 11.3 1.9 L -- -- 6.7 -- 18.9T04901 WILDCAT CR RT00W PUTNAM 1 97 3.80 Q100 2900 2900 REG 10.9 0.1 L -- -- 5.6 -- 10.1A3094 MUNCAS CR MO003 RANDOLPH 1 130 12.6 Q100 4590 4590 REG 11.2 11.6 L 17.9 17.3 4.8 -- 19.5F403R1 CHARITON RI US024 RANDOLPH 1 162 249 Q100 22200 10745 EST 13.7 0.0 L -- 12.7 20.3 -- 11.3J727 SILVER CR MO003 RANDOLPH 1 180 38.2 Q100 9690 9690 REG 12.5 2.6 L 15.3 13.5 9.2 -- 16.5N595 SLOUGH CR RT TT SALINE 1 96 4.97 Q100 3560 3560 REG 15.4 13.9 L 7.2 -- 3.3 3.3 18.9J690 FABIUS CR US136 SCHUYLER 1 100 6.53 Q100 3450 3450 REG 10.2 3.8 L -- -- 9.2 -- 9.5P233 N FK FABIUS RI RT00C SCHUYLER 1 89 5.44 Q100 2940 2940 REG 9.7 18.9 L -- -- 3.9 -- 14.4R308 NEW CHAN RT00W SCHUYLER 1 263 6.63 Q100 3300 3300 REG 5.0 -- -- -- -- -- -- --S912 BRIDGE CR RT00A SCHUYLER 1 68 1.23 Q100 1540 1540 REG 8.3 3.3 L -- -- 7.7 -- 8.4T892 BRUSH CR RT00E SCHUYLER 1 89 5.21 Q100 3200 3200 REG 9.7 30.2 L -- -- 3.9 -- 26.7X97 FABIUS RI RT00A SCHUYLER 1 102 33.5 Q100 8310 5760 BC 12.8 10.7 L -- -- 5.6 -- 36.5A2523 LOCUST CR RT00E SULLIVAN 1 463 224 Q100 21900 21900 REG 11.5 6.8 L 15.2 13.9 7.7 5.1 17.7A4421 E FK YELLOW CR MO005 SULLIVAN 1 254 123 Q100 16500 16500 REG 16.2 6.1 L -- -- 6.4 -- 12.5H806 CREEK MO005 SULLIVAN 1 33 0.87 Q100 1390 1390 REG 10.4 8.5 L -- -- -- -- 23.9J379 W LOCUST CR MO006 SULLIVAN 1 255 80.0 Q100 12400 12400 REG 12.1 8.0 L -- -- 10.5 -- 12.8J951 E LOCUST CR MO006 SULLIVAN 1 439 50.1 Q100 9720 9720 REG 7.0 -- -- -- -- -- -- --P205 YELLOW CR RT00C SULLIVAN 1 83 8.79 Q100 3690 3690 REG 10.7 6.0 L -- -- 3.9 -- 14.9P218 YELLOW CR RT00C SULLIVAN 1 113 54.1 Q100 9260 9260 REG 15.4 16.5 L -- -- 3.9 -- 13.1P418 SPRING CR RT00D SULLIVAN 1 152 51.1 Q100 11700 11700 REG 15.7 19.8 L -- -- 7.7 -- 17.2P528 ROOKS BR RT0BB SULLIVAN 1 109 20.5 Q100 6550 4460 BC 10.5 4.6 L -- -- 3.9 -- 17.4P711 MUSSEL CR RT00H SULLIVAN 1 113 23.8 Q100 6330 6330 REG 13.3 12.6 L -- -- 6.1 -- 15.0P934 W LOCUST CR RT0PP SULLIVAN 1 129 62.2 Q100 11300 7460 BC 12.5 13.0 L -- -- 3.2 -- 19.0P956 E FK MEDICINE CR RT0PP SULLIVAN 1 255 217 Q100 21000 21000 REG 16.3 15.3 L -- -- 11.8 -- 15.5S199 YELLOW CR MO129 SULLIVAN 1 66 3.26 Q100 2330 2330 REG 9.3 6.8 L -- -- 3.9 -- 8.8S582 STREAM MO139 SULLIVAN 1 66 0.65 Q100 1200 1200 REG 7.2 1.2 L -- -- 5.9 -- 7.0S583 NEWTOWN BR MO139 SULLIVAN 1 78 5.17 Q100 3160 3160 REG 11.0 13.3 L -- -- 3.9 -- 21.9T482 LOCUST CR RT00E SULLIVAN 1 105 0.90 Q100 1610 1610 REG 7.1 3.2 L -- -- 4.5 -- 8.5T485 MEDICINE CR RT00E SULLIVAN 1 264 191 Q100 19600 19600 REG 16.8 2.1 L -- 17.4 11.7 9.6 12.7T928 E LOCUST CR RT00T SULLIVAN 1 121 74.5 Q100 12100 9090 BC 14.8 3.6 L -- -- 6.4 5.9 19.7


10146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180

J6


M6


C7


D7


E7


G7


P10


document.xls

District 02


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]10.1 Q500 5310 5310 REG 12.7 11.8 L -- -- 3.9 -- 16.3 14.0 N N N Y N N -- -- No protection. Erosion gullies under bents.18.5 Qimp 1990 1990 BC 7.2 7.8 L -- -- 3.9 -- 13.1 12.8 Y Y N Y N M ? -- Moderate protection on both banks & R abutment. Sand channel.23.7 Qimp 1290 1290 BC 5.1 1.1 L -- -- 6.7 -- -- -- N N N Y N N -- -- Channel doglegs through bridge--bridge built with approx 30 deg skew, channel approaches at 10 deg. Massive slumping on both banks, especially RB.11.7 Qimp 3070 3070 BC 8.1 4.3 L -- -- 3.9 -- 7.4 -- Y P N Y N M N -- Mass wasting & erosion under banks on both banks.17.7 Qimp 4370 4370 BC 9.9 15.3 L -- -- 3.9 -- 14.2 11.0 Y P N Y N M ? -- Riprap on both banks, unsure of design.18.9 Q500 8700 8700 REG 12.5 2.1 L -- -- 6.7 -- 23.9 23.9 N N N Y N M N -- Moderate bank protection on LB & abutment. Sparse riprap on RB, none on R abutment. Deeply incised channel--Q500 doesn't overtop banks.10.1 Q500 3950 3950 REG 12.5 0.1 L -- -- 5.6 -- 13.6 13.6 N N N Y N M ? -- Inlaid cobbling on both abutments. Large cobbles & boulders on LB. No FP on L side. Q500 will not overtop RB.18.8 Q500 6270 6270 REG 13.2 14.5 L 21.8 21.2 4.8 -- 21.3 20.9 N P N Y Y N -- -- Large bend immediately U/S of bridge; channel parallels road on U/S RFP. Bridge built with 30 deg skew, channel approaches at 40 deg. Channel migrating to left under bridge. Cutbank on U/S LB.19.8 Q500 29700 14375 EST 16.4 0.0 L -- 16.8 20.3 -- 11.5 19.9 Y Y Y Y Y N -- -- Riprap on both banks. RR embankment U/S will control & limit flow on FP. Bridge built with 20 deg skew, channel approaches at 10 deg. Mass wasting & cutbanks on U/S & D/S banks. Channel curves to right D/S, major cutbank on D/S LB. Relief bridge F529R111.2 Q500 13000 13000 REG 14.4 3.8 L 19.1 17.5 9.2 -- 19.7 14.9 N N N Y N M N -- Bridge built w/o skew. FP skewed approx 50 deg to bridge, channel approaches approx 30 deg other direction. Used net difference for skew. No flow on RFP18.9 Q500 4810 4810 REG 16.5 11.5 L 10.6 -- 3.3 3.3 20.0 20.0 N P N Y Y N -- -- U/S lateral ditches blown out; Debris in U/S channel; Abutment caps undermined on both sides; Substantial channel erosion

9.9 Q500 4720 4720 REG 11.4 11.0 L -- -- 9.2 -- 12.6 12.8 N P N Y ? M N -- Very slight footing exposure. Scattered riprap on LB. Gully washing on RB. Inlaid cobbling on both abutments.14.4 Q500 4040 4040 REG 11.8 27.5 L -- -- 3.9 -- 18.2 18.2 P P N Y N N -- -- Concrete connecting cap exposed. No protection. Gully erosion under the bridge.

-- Q500 4530 4530 REG 6.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Very well protected banks and abutments. Channelized with low flows. Photos taken.8.0 Q500 2120 2120 REG 9.6 12.3 L -- -- 7.7 -- 12.2 12.1 N N N Y ? Y Y -- Riprap on both abutments & banks, and U/S RB. Concrete connecting caps exposed on R bent.

25.7 Q500 4360 4360 REG 11.7 39.9 L -- -- 3.9 -- 30.5 30.0 Y Y N Y ? N -- -- Severe mass wasting on both banks.31.0 Qimp 3210 3210 BC 9.0 8.7 L -- -- 5.5 -- 25.1 15.7 Y Y N Y N N -- -- Moderate mass wasting on both banks.15.8 Q500 29200 29200 REG 13.3 7.9 L 18.1 17.0 7.7 5.1 20.1 19.1 N N N Y N Y Y -- Both abutments & aprons fully protected. Gully washing on both banks, substantial around setback piers.14.6 Q500 22000 22000 REG 18.8 10.6 L -- -- 6.5 -- 17.4 19.4 N N N Y N N -- -- Gully washing on both banks.20.7 Q500 1910 1910 REG 12.6 13.5 L -- -- -- -- 29.4 26.9 Y Y N Y Y N -- -- Moderate contraction/abutment scour on both abutments. Photos taken.11.6 Q500 16700 16700 REG 14.0 6.8 L 19.1 -- 10.5 -- 16.3 15.1 N N N Y Y M N -- Inlaid cobbling on both abutments. Scattered riprap on RB & L setback. Conctraction scour on L setback. Photos taken.

-- Q500 13100 13100 REG 8.4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A5259.17.0 Q500 5060 5060 REG 12.9 13.3 L -- -- 3.9 -- 19.1 20.2 N P N Y N M N -- Partial riprap on both abutments, moderate cobbling on both banks.19.6 Q500 12600 12600 REG 18.6 23.5 L -- -- 3.9 -- 19.1 22.4 P P N Y N M N -- Both abutments & banks are moderately protected with cobble sized riprap.18.6 Q500 15600 15600 REG 18.4 27.5 L -- -- 7.7 -- 20.7 21.4 N N N Y N M N -- Scattered riprap on both banks.19.8 Qimp 2370 2370 BC 7.2 5.6 L -- -- 3.9 -- 11.2 14.2 Y Y N Y Y!! M N -- L abutment covered with scattered boulder-sized riprap. R abutment scoured. Photos taken.14.3 Q500 8620 8620 REG 15.1 17.6 L -- -- 6.2 -- 18.4 17.7 N N N Y N M N -- Moderate boulder-sized riprap on both banks. Bluff approx 120' beyond top of RB17.6 Qimp 3620 3620 BC 8.7 9.2 L -- -- 3.2 -- 11.9 9.8 Y Y N Y N M N -- Riprap on both banks & abutments--scattered.19.6 Q500 28100 28100 REG 18.5 19.3 L -- -- 11.9 -- 19.5 21.5 P P N Y N M ? -- Large concrete debris on LB.13.4 Q500 3200 3200 REG 11.2 15.8 L -- -- 3.9 -- 13.6 17.0 N P N Y N M N -- Concrete connecting cap exposed. Minimal protection.

7.0 Q500 1650 1650 REG 8.0 7.7 L -- -- 6.0 -- 10.2 10.2 N N N P N N -- -- Severe gully washing on LB/abutment. Clastic-type riprap on RB.20.3 Q500 4310 4310 REG 13.3 13.0 L -- -- 3.9 -- 21.7 20.1 P Y N Y N M N -- Moderate bank protection on RB. Concrete connecting caps exposed. RR bridge D/S approx 1 bridge length--may constrict flow, causing backwater.

7.0 Q500 2190 2190 REG 8.2 4.9 L -- -- 4.5 -- 11.9 11.2 N N N Y ? M N -- Scattered riprap on both banks. Concrete connecting caps exposed.20.3 Q500 26300 26300 REG 19.3 2.2 L -- 22.9 11.7 9.6 17.4 22.5 N N N Y N M N -- Riprap on both channel banks. Footing exposure. Photos taken.19.7 Qimp 6080 6080 BC 11.6 6.0 L -- -- 6.4 5.8 14.2 14.2 Y Y N Y N N -- -- Some erosion on L & R banks. Significant debris in channel less than 1 bridge length U/S.


10146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180

W6


Z6


AC10


document.xls

District 02

Comment codes:

Notes


No protection. Erosion gullies under bents.Moderate protection on both banks & R abutment. Sand channel.Channel doglegs through bridge--bridge built with approx 30 deg skew, channel approaches at 10 deg. Massive slumping on both banks, especially RB.Mass wasting & erosion under banks on both banks.Riprap on both banks, unsure of design.Moderate bank protection on LB & abutment. Sparse riprap on RB, none on R abutment. Deeply incised channel--Q500 doesn't overtop banks.Inlaid cobbling on both abutments. Large cobbles & boulders on LB. No FP on L side. Q500 will not overtop RB.Large bend immediately U/S of bridge; channel parallels road on U/S RFP. Bridge built with 30 deg skew, channel approaches at 40 deg. Channel migrating to left under bridge. Cutbank on U/S LB.Riprap on both banks. RR embankment U/S will control & limit flow on FP. Bridge built with 20 deg skew, channel approaches at 10 deg. Mass wasting & cutbanks on U/S & D/S banks. Channel curves to right D/S, major cutbank on D/S LB. Relief bridge F529R1Bridge built w/o skew. FP skewed approx 50 deg to bridge, channel approaches approx 30 deg other direction. Used net difference for skew. No flow on RFPU/S lateral ditches blown out; Debris in U/S channel; Abutment caps undermined on both sides; Substantial channel erosionVery slight footing exposure. Scattered riprap on LB. Gully washing on RB. Inlaid cobbling on both abutments.Concrete connecting cap exposed. No protection. Gully erosion under the bridge.Very well protected banks and abutments. Channelized with low flows. Photos taken.Riprap on both abutments & banks, and U/S RB. Concrete connecting caps exposed on R bent.Severe mass wasting on both banks.Moderate mass wasting on both banks.Both abutments & aprons fully protected. Gully washing on both banks, substantial around setback piers.Gully washing on both banks.Moderate contraction/abutment scour on both abutments. Photos taken.Inlaid cobbling on both abutments. Scattered riprap on RB & L setback. Conctraction scour on L setback. Photos taken.Replaced with A5259.Partial riprap on both abutments, moderate cobbling on both banks.Both abutments & banks are moderately protected with cobble sized riprap.Scattered riprap on both banks.L abutment covered with scattered boulder-sized riprap. R abutment scoured. Photos taken.Moderate boulder-sized riprap on both banks. Bluff approx 120' beyond top of RBRiprap on both banks & abutments--scattered.Large concrete debris on LB.Concrete connecting cap exposed. Minimal protection.Severe gully washing on LB/abutment. Clastic-type riprap on RB.Moderate bank protection on RB. Concrete connecting caps exposed. RR bridge D/S approx 1 bridge length--may constrict flow, causing backwater.Scattered riprap on both banks. Concrete connecting caps exposed.Riprap on both channel banks. Footing exposure. Photos taken.Some erosion on L & R banks. Significant debris in channel less than 1 bridge length U/S.


10146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180

AT10


document.xls

District 02

No protection. Erosion gullies under bents.Moderate protection on both banks & R abutment. Sand channel.Channel doglegs through bridge--bridge built with approx 30 deg skew, channel approaches at 10 deg. Massive slumping on both banks, especially RB.Mass wasting & erosion under banks on both banks.Riprap on both banks, unsure of design.Moderate bank protection on LB & abutment. Sparse riprap on RB, none on R abutment. Deeply incised channel--Q500 doesn't overtop banks.Inlaid cobbling on both abutments. Large cobbles & boulders on LB. No FP on L side. Q500 will not overtop RB.Large bend immediately U/S of bridge; channel parallels road on U/S RFP. Bridge built with 30 deg skew, channel approaches at 40 deg. Channel migrating to left under bridge. Cutbank on U/S LB.Riprap on both banks. RR embankment U/S will control & limit flow on FP. Bridge built with 20 deg skew, channel approaches at 10 deg. Mass wasting & cutbanks on U/S & D/S banks. Channel curves to right D/S, major cutbank on D/S LB. Relief bridge F529R1Bridge built w/o skew. FP skewed approx 50 deg to bridge, channel approaches approx 30 deg other direction. Used net difference for skew. No flow on RFPU/S lateral ditches blown out; Debris in U/S channel; Abutment caps undermined on both sides; Substantial channel erosionVery slight footing exposure. Scattered riprap on LB. Gully washing on RB. Inlaid cobbling on both abutments.Concrete connecting cap exposed. No protection. Gully erosion under the bridge.Very well protected banks and abutments. Channelized with low flows. Photos taken.Riprap on both abutments & banks, and U/S RB. Concrete connecting caps exposed on R bent.Severe mass wasting on both banks.Moderate mass wasting on both banks.Both abutments & aprons fully protected. Gully washing on both banks, substantial around setback piers.Gully washing on both banks.Moderate contraction/abutment scour on both abutments. Photos taken.Inlaid cobbling on both abutments. Scattered riprap on RB & L setback. Conctraction scour on L setback. Photos taken.Replaced with A5259.Partial riprap on both abutments, moderate cobbling on both banks.Both abutments & banks are moderately protected with cobble sized riprap.Scattered riprap on both banks.L abutment covered with scattered boulder-sized riprap. R abutment scoured. Photos taken.Moderate boulder-sized riprap on both banks. Bluff approx 120' beyond top of RBRiprap on both banks & abutments--scattered.Large concrete debris on LB.Concrete connecting cap exposed. Minimal protection.Severe gully washing on LB/abutment. Clastic-type riprap on RB.Moderate bank protection on RB. Concrete connecting caps exposed. RR bridge D/S approx 1 bridge length--may constrict flow, causing backwater.Scattered riprap on both banks. Concrete connecting caps exposed.Riprap on both channel banks. Footing exposure. Photos taken.Some erosion on L & R banks. Significant debris in channel less than 1 bridge length U/S.

BN BO BP123456789

10146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180

document.xls

District 03



TypeTotal

MethodMain channel

OverbankLeft



A217 M LICK CR RT00J AUDRAIN 1 103 12.1 Q100 3060 3060 REG 8.4 -- -- -- -- -- -- --A4685 BEAVER DAM CR US054 AUDRAIN 1 130 15.6 Q100 9500 9500 REG 14.5 0.5 L 23.1 23.1 3.9 -- 22.8H24 CREEK RT P AUDRAIN 1 46 1.23 Q100 1050 1050 REG 7.3 4.3 L -- -- 9.6 -- 17.2H549 LICK CR MO015 AUDRAIN 1 170 29.3 Q100 6600 6600 REG 11.5 1.2 L 13.2 17.1 7.6 -- 12.4J286 SALING BR MO022 AUDRAIN 1 127 10.3 Q100 2790 2790 REG 7.0 3.5 L 9.0 11.2 6.3 -- 17.8J287 GOOD WATER CR MO151 AUDRAIN 1 88 4.67 Q100 2460 2460 REG 8.1 7.2 L 9.0 10.8 6.3 -- 21.3R428 GOOD WATER CR RT00C AUDRAIN 1 101 11.2 Q100 3820 3820 REG 10.3 6.7 L 15.0 9.5 6.4 -- 14.6S962 SKULL LICK CR RT00E AUDRAIN 1 91 9.32 Q100 4140 4140 REG 10.8 8.5 L 16.4 17.4 6.4 -- 20.2T206 W LICK CR RT00B AUDRAIN 1 115 8.36 Q100 3050 3050 REG 9.0 3.2 L 8.4 7.5 6.4 -- 8.5A2828 HONEY CR US061 CLARK 1 174 48.0 Q100 8910 8910 REG 13.1 4.8 L 16.3 17.4 5.1 -- 19.4A2829 BUCK RUN CR US061 CLARK 1 128 6.70 Q100 3850 3850 REG 9.3 0.0 L 7.2 13.7 3.2 -- 14.4L166 WYACONDA RI RT00D CLARK 1 257 282 Q100 27000 16485 BC 16.3 0.0 L 2.3 6.4 21.1 9.9 10.3P266 L WYACONDA RI RT00D CLARK 1 145 19.8 Q100 5510 4565 BC 9.8 11.4 L 15.1 15.2 3.9 -- 25.7R473 L WYACONDA RI RT00M CLARK 1 149 38.1 Q100 7940 7940 REG 12.2 9.9 L 5.6 12.0 7.6 -- 11.0A4418 N FK S FABIUS RI MO006 KNOX 1 406 72.2 Q100 10800 10800 REG 8.4 15.0 L 15.5 15.3 7.6 3.2 18.7A4501 L FABIUS RI MO015 KNOX 1 85 24.1 Q100 5810 4830 BC 12.4 2.7 L -- -- 3.2 -- 17.5H770 S FK S FABIUS RI MO015 KNOX 1 473 66.2 Q100 11300 11300 REG 9.0 15.1 L 16.0 14.7 7.6 -- 18.7H771 ROCK CR MO015 KNOX 1 158 18.5 Q100 5490 5490 REG 10.0 2.8 L 14.5 11.8 7.6 -- 9.4P507 M FABIUS RI RT00M KNOX 1 300 235 Q100 22800 22800 REG 17.1 5.3 L 9.3 8.6 11.7 6.4 19.9S952 S FABIUS RI MO156 KNOX 1 166 215 Q100 19800 13515 BC 18.1 4.1 L -- -- 8.7 -- 9.2X617 M FABIUS RI RT00K KNOX 1 178 250 Q100 23000 14040 BC 17.7 4.3 L 10.1 -- 9.3 5.5 22.2X905 SALT RI MO156 KNOX 1 233 182 Q100 20400 20400 REG 17.7 2.0 L -- -- 35.8 12.6 13.0P207 SUGAR CR RT00E LEWIS 1 83 9.70 Q100 4040 4040 REG 11.3 10.9 L 12.1 15.6 3.9 -- 27.6P251 DERRAHS BR RT00E LEWIS 1 93 5.35 Q100 2900 2900 REG 9.1 4.5 L 5.9 3.9 7.2 -- 20.4R322 WYACONDA RI RT00E LEWIS 1 362 372 Q100 30700 30700 REG 18.9 4.8 L 15.8 16.3 10.0 -- 23.0T808 DURGEN CR RT00C LEWIS 1 135 18.6 Q100 5520 5520 REG 10.9 9.6 L 15.9 13.2 5.5 -- 14.8A1916 SPRING CR RT00H LINCOLN 1 121 5.58 Q100 3790 3790 REG 9.4 4.6 L 6.3 5.6 5.1 -- 13.4A2608 CROOKED CR US061 LINCOLN 1 110 14.2 Q100 5690 5690 REG 11.7 14.3 L 16.4 -- 3.2 -- 17.2A4172 CUIVRE RI MO079 LINCOLN 1 770 1230 Q100 60600 60600 REG 15.7 9.7 L 25.6 19.5 8.6 3.3 24.9J975 CUIVRE RI MO047 LINCOLN 1 791 970 Q100 54200 54200 REG 13.9 -- -- -- -- -- -- --N386 KINGS LAKE RT00M LINCOLN 1 108 25.6 Q100 1900 1900 REG 6.1 -- -- -- -- -- -- --N730 CUIVRE RI RT00D LINCOLN 1 516 491 Q100 35200 35200 REG 14.8 3.2 L 6.8 -- 10.5 7.7 21.1P111 CUIVRE RI RT00H LINCOLN 1 303 575 Q100 39200 25400 BC 17.7 0.0 L 2.4 2.0 29.4 6.8 21.5R208 CROOKED CR RT0MM LINCOLN 1 108 15.2 Q100 6240 6240 REG 12.6 8.1 L 18.7 15.5 3.2 -- 19.9S143 KINGS LAT DD RT00P LINCOLN 1 40 19.1 Q100 3400 2116 BC 13.4 0.8 L -- -- -- -- 26.5A2021 S FABIUS RI US061 MARION 1 389 617 Q100 39200 39200 REG 17.5 -- -- -- -- -- -- --A3150 N FABIUS RI US061 MARION 1 565 916 Q100 48300 48300 REG 15.8 -- -- -- -- -- -- --A32101 N FABIUS RI US 61 MARION 1 549 462 Q100 29000 29000 REG 14.7 0.0 L 14.7 14.7 8.6 7.7 20.2A3789R1 S FABIUS RI US061 MARION 1 389 617 Q100 39300 39300 REG 17.5 -- -- -- -- -- -- --N752 S FABIUS RI RT CC MARION 1 192 24.7 Q100 7670 7670 REG 11.4 7.7 L -- -- 10.5 10.5 10.5R51 S FK NORTH RI RT00C MARION 1 200 106 Q100 18300 18300 REG 17.3 8.0 L -- 17.0 6.5 3.3 12.8T994 S FK NORTH RI RT00Z MARION 1 185 75.5 Q100 14900 11910 BC 17.6 2.7 L 5.2 -- 6.5 3.9 21.5A3731 E FK SALT RI MO154 MONROE 1 628 291 Q100 24200 24200 REG 9.8 -- -- -- -- -- -- --A3732 S FK SALT RI MO154 MONROE 1 926 536 Q100 42200 42200 REG 10.8 -- -- -- -- -- -- --A3738 N FK SALT RI RT0FF MONROE 1 539 632 Q100 37900 37900 REG 14.1 -- -- -- -- -- -- --



Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]


10111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455

J6


M6


C7


D7


E7


G7


P10


document.xls

District 03


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right

RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes-- Q500 4310 4310 REG 10.3 -- -- -- -- -- -- -- -- N N N Y Y Y ? -- Concrete pads on abutment & embankment faces. Contraction scour hole on L setback filled with riprap. Meander U/S with cutbank on U/S LB. Well protected.

22.8 Q500 12400 12400 REG 17.1 0.5 L 27.8 27.8 4.0 -- 25.0 25.0 P Y N Y N N -- -- Buried riprap on RB. Channel shifting to R approx 200 ft D/S of southbound lane & RR bridge. Built with 15 deg skew, flow approaches at 10 deg. Median acts as levee on both FPs.17.2 Q500 1480 1480 REG 9.0 10.6 L -- -- 9.6 -- 21.9 21.9 P Y N N N N -- -- Tall grasses in channel; old abutment approx 2 bridge widths D/S15.4 Q500 9020 9020 REG 13.9 5.5 L 16.9 20.6 7.7 -- 17.0 19.6 N Y N Y Y M N -- Large blowhole under bridge. Channel shifting to left. Cobbling on L abutment faces. Falling trees in U/S channel.18.4 Q500 3930 3930 REG 8.6 7.7 L 13.4 15.0 6.3 -- 22.2 22.7 N N N Y Y M N -- Contraction scour on both setbacks. Shallow channel. Marginal riprap on banks & abutments.22.9 Q500 3400 3400 REG 9.8 9.8 L 13.2 14.8 6.4 -- 26.1 27.7 N Y N Y Y N -- -- Contraction scour on R setback. Channel shifted to left. Weir & gage of unknown ownership U/S.14.2 Q500 5270 5270 REG 12.0 10.5 L 18.1 14.6 6.4 -- 17.9 17.5 N P N Y Y N -- -- Contraction scour observed on setbacks. Wier & gage of unknown ownership U/S. Cutbanks on U/S & D/S LB.20.7 Q500 5650 5650 REG 13.1 12.2 L 19.8 20.9 6.4 -- 22.2 22.7 N P N Y Y N -- -- Narrow FP. Cutbanks on U/S LB & D/S RB due to meander. No abutment.19.8 Q500 4240 4240 REG 10.4 4.6 L 12.0 10.9 6.4 -- 12.6 21.0 P P N Y Y M N -- Concrete on abutment faces. Blowhole under bridge. Large debris dam D/S. Terraced FP on U/S L side.12.3 Q500 12100 12100 REG 15.1 7.2 L 20.6 22.0 5.2 -- 21.2 16.1 N N N Y Y Y ? -- Leveed channel on edge of MO River FP. Riprapped on both abutments and U/S embankment faces. Large contraction/abutment scour hole on L setback, presumably due to debris deflected flow. Photos taken.18.7 Q500 5230 5230 REG 10.5 0.0 L 11.2 16.7 3.2 -- 16.7 20.0 N N N Y Y N -- -- Meandering channel has shifted under bridge, causing a channel & subchannel. Riprap on LB and setback. Riprap on U/S LB. On edge of MI River FP.20.3 Qimp 5970 5970 BC 10.4 2.7 L -- 0.0 20.9 9.8 -- 9.4 Y N N Y Y N -- -- Slumped riprap on RB. Meander U/S, slumped banks U/S & D/S. Levee on U/S LFP that isn't overtopped24.4 Qimp 3620 3620 BC 8.5 12.3 L 12.1 12.5 3.9 -- 22.2 20.9 Y Y N Y Y N -- -- Riprap on both setback, filling contraction scour holes. Cutbanks U/S & D/S.21.3 Q500 10800 10800 REG 14.6 11.9 L 9.2 15.3 7.7 -- 15.8 23.5 N P N Y Y N -- -- Riprap on both banks. Cutbanks on U/S & D/S LB. Levee on U/S RFP. Channel along L edge of FP.16.0 Q500 14600 14600 REG 10.0 17.1 L 18.0 17.8 7.6 3.2 20.4 18.9 N P N Y Y Y Y -- Riprap on abutment faces and U/S faces of embankments. Main channel piers have some sort of concrete pad (scour inhibitor?) Small riprap on setbacks. WELL DESIGNED to resist scour--other than webwalls on main channel piers.

6.3 Qimp 3850 3850 BC 10.8 4.0 L -- -- 3.2 -- 14.5 -- Y Y N N N Y Y -- Riprap on both banks, abutments & U/S faces of embankments. Overflow section on LFP. Channel along R edge of FP17.5 Q500 15300 15300 REG 10.9 17.1 L 18.8 17.4 7.6 -- 20.6 20.0 N P N Y Y N -- -- Contraction scour & local scour on setbacks. Channel migrating to right. Fallen trees in U/S channel indicate mass wasting. Cobbling on abutment faces.15.8 Q500 7490 7490 REG 12.1 3.9 L 17.7 16.2 7.6 -- 14.2 19.5 N Y N Y ? N -- -- Channel shifting to right. Gravel in stream (not natural). Cobbling on abutment faces. Cutbanks U/S & D/S. Erosion gullies on setbacks. U/S LFP appears to be a raised FP or landfill (?)12.8 Q500 30400 30400 REG 19.2 8.7 L 14.2 13.4 11.7 6.5 21.8 16.8 N N N Y Y N -- -- Contraction scour on L setback. Riprap used to fill hole. Channel bends from LFP U/S; cutbank on U/S & D/S RBs. Local scour at first bent from channel on L setback. Riprap on U/S face of L embankment.23.1 Qimp 7230 7230 BC 12.9 7.3 L -- -- 8.6 -- -- 17.7 Y N Y Y Y Y N -- Slumped riprap on RB & abutment. Bedrock outcrop on LB U/S to D/S. Exposed footing on LB pier on bedrock. Bedrock residue in channel. Bend & cutbank on U/S LB. Contraction/abutment scour on RB. Road overflow section on RFP.21.1 Qimp 5080 5080 BC 10.0 4.2 L 0.0 -- 9.2 5.4 10.6 5.5 Y N N Y Y M N -- Bridge built with 30 deg skew; channel impinges on R embankment, then comes through bridge at approx 40 deg. Overflow sections on both FPs. Small riprap on abutment faces, on U/S LB, & along U/S face of R embankment where flow impinges.13.5 Q500 27200 27200 REG 20.2 7.7 L -- -- 35.9 12.6 17.7 18.2 P N N Y Y Y N -- Bridge built with 30 deg skew, channel approaches 15 deg from other direction. Large cutbank on U/S LB; channel shifting. Riprap on LB & U/S LB on bend. Cutbanks on U/S & D/S banks. Well vegetated bar on U/S RFP29.2 Q500 5530 5530 REG 13.6 14.6 L 16.4 19.0 3.9 -- 31.3 32.3 Y Y N Y Y N -- -- Small amount of riprap on LB. No vegetation immediately U/S, blowhole. Contraction scour on R setback. Cutbanks on D/S banks. Q500 approx equals Qimp18.0 Q500 3990 3990 REG 11.1 8.1 L 10.0 7.8 7.2 -- 25.9 23.5 P P N Y Y N -- -- Bend in channel U/S of bridge. Cutbank on RB at bridge. Blowhole at bridge. Trees falling into U/S channel. Contraction scour on L setback.24.7 Q500 40600 40600 REG 21.9 6.1 L 19.5 19.7 10.0 -- 25.7 27.3 P N N Y Y Y ? -- Riprap on L abutment & U/S face of embankment. Large contraction/abutment scour hole at base of L abutment. Local scour at L setback bent. Sandbar U/S & under bridge on L setback. Cutbank on RB U/S & D/S. Photos taken.15.4 Q500 7540 7540 REG 12.6 13.3 L 19.8 17.4 5.5 -- 18.1 18.6 N P N Y Y N -- -- Channel shifting to right, causing cutbank on RB. Contraction scour on L setback.12.7 Q500 5120 5120 REG 11.0 7.2 L 8.7 8.0 5.1 -- 16.3 15.6 N P N Y Y N -- -- Bridge built with 10 deg skew, channel approaches at 25 deg. Channel shifted to L under bridge. Gravel bar on D/S RB. Contraction scour on R setback.17.9 Q500 7680 7680 REG 14.0 17.9 L 21.3 -- 3.2 -- 20.4 20.7 N P N Y Y N -- -- Blowhole under bridge. Riprap on U/S banks to stop slumping. Channelized but beginning to meander. U/S of northbound lanes (unknown structure number). Steep banks in median.21.7 Q500 79300 79300 REG 18.0 11.1 L 30.8 24.5 8.7 3.3 26.9 23.7 N N N Y Y Y ? -- Riprap on L abutment, both embankment faces on L side, & on RB. Cutbank on U/S & D/S RBs. Riprap on D/S RB approx 2 bridge lengths. Road on R setback. Bents on L setback well protected with riprap.

-- Q500 70900 70900 REG 16.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Scheduled to be replaced. No apparent immediate threat.-- Q500 2830 2830 REG 7.7 -- -- -- -- -- -- -- -- Y N N N N N -- -- Appears to be over oxbow or slough. Nearby bridge (N385) is leveed & carries flow--this one has no flow & is in backwater area. Not protected.

12.0 Q500 46500 46500 REG 17.1 3.9 L 9.8 -- 10.6 7.7 23.1 16.3 N N N Y Y Y ? -- Concrete paving on L abutment & U/S embankment faces. Local, contraction, & abutment scour all observed on L setback. Bedrock outcrop on R side, R pier footing exposed. Along R edge of FP. Cutbank on U/S & D/S RBs. Large hole D/S of bridge on L side.15.6 Qimp 11600 11600 BC 11.8 2.5 L 0.0 0.0 29.1 6.8 12.8 -- Y N N Y Y Y N -- Inlaid cobbling on both abutment & U/S embankment faces. Large meander U/S causing major cutbank & shifting to L. L setback pile bent substantially exposed (12-15 ft). Recent dirtwork in progress, presumably to stop channel shift & cutting bank.11.2 Q500 8390 8390 REG 15.1 10.6 L 23.2 19.7 3.3 -- 22.1 15.9 P Y N Y Y Y N -- Riprap on both abutments & LB. Contraction scour (minor) on L setback. Cutbank on RB U/S & under bridge. Rock outcrop on U/S RB. Meandering channel.26.5 Qimp 832 832 BC 7.6 1.3 L -- -- -- -- 2.8 2.8 Y Y N P N Y N -- Deep channelized ditch. Flow on FPs will occur at Qimp, not before. Slumped concreted & unconcreted riprap on banks & abutments. Levee on U/S RFP.

-- Q500 51700 51700 REG 20.7 -- -- -- -- -- -- -- -- -- -- Y N Y Y Y -- Well protected. Bedrock outcrop on RB, footing exposed. Gravel channel, sand overbank. Concreted riprap on L abutment. Wide setback on L side, some local scour observed. Dual bridge with A3789R1 (U/S). Channel along R edge of FP.-- Q500 63700 63700 REG 18.7 -- -- -- -- -- -- -- -- -- -- N N Y Y Y -- Well protected. L abutment paved, R abutment covered with riprap. Clean setbacks, piers appear designed for scour. Levees on both FPs, on edge of MI River FP. Flagged due to unknown pier scour--indeterminable. Dual bridge with A3210 (U/S).

20.2 Q500 38800 38800 REG 17.3 0.0 L 18.2 18.2 8.7 7.7 22.5 22.5 N N N N ? Y Y -- Concrete revetment on L abut; riprap on R abut; Massive debris pileup at R main channel peir; D/S structure A-3150; levees on U/S L & R FPs-- Q500 52000 52000 REG 20.8 -- -- -- -- -- -- -- -- -- -- Y N Y Y Y -- Well protected. Bedrock outcrop on RB, footing exposed. Gravel channel, sand overbank. Concreted riprap on L abutment. Wide setback on L side, some local scour observed. Dual bridge with A2021 (D/S). Channel along R edge of FP.

16.4 Q500 10300 10300 REG 13.5 10.3 L -- 6.2 10.5 10.5 14.5 19.7 N N P N N Y ? -- Channel is bedrock; foundations most-likely on bedrock21.6 Q500 24200 24200 REG 19.9 10.3 L -- 21.9 6.5 3.3 17.7 23.8 P N N Y Y Y N -- Bedrock outcrop on LB. Riprap on R abutment & partially on RB. Contraction scour on R setback. Old road embankment & vertical abutment on U/S RFP. Channel on L edge of FP.

6.6 Qimp 8920 8920 BC 14.8 5.1 L 2.7 -- 6.4 3.9 18.8 -- Y N P Y Y Y N -- Bedrock outcrop on RB. Old bridge abutment immediately U/S of R main channel bent. Riprap on L abutment & bedrock residue on LB. Cutbank on D/S LB. Knoll on U/S RFP. Debris on L main channel bent. Q100 approx equals Qimp-- Q500 32300 32300 REG 11.7 -- -- -- -- -- -- -- -- N N N N N Y Y -- Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.-- Q500 55200 55200 REG 12.7 -- -- -- -- -- -- -- -- N N N N N Y Y -- Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.-- Q500 50200 50200 REG 16.7 -- -- -- -- -- -- -- -- N N P N N Y Y -- Lake Arm, just U/S of Mark Twain Lake. VERY well protected with riprap on banks, abutments & embankments; 4 to 1 slopes; cylindrical piers w/o webwalls. Flagged due to unknown pier scour--indeterminable, but not deemed to be a problem.




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]


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W6


Z6


AC10


document.xls

District 03

Comment codes:

NotesConcrete pads on abutment & embankment faces. Contraction scour hole on L setback filled with riprap. Meander U/S with cutbank on U/S LB. Well protected.Buried riprap on RB. Channel shifting to R approx 200 ft D/S of southbound lane & RR bridge. Built with 15 deg skew, flow approaches at 10 deg. Median acts as levee on both FPs.Tall grasses in channel; old abutment approx 2 bridge widths D/SLarge blowhole under bridge. Channel shifting to left. Cobbling on L abutment faces. Falling trees in U/S channel.Contraction scour on both setbacks. Shallow channel. Marginal riprap on banks & abutments.Contraction scour on R setback. Channel shifted to left. Weir & gage of unknown ownership U/S.Contraction scour observed on setbacks. Wier & gage of unknown ownership U/S. Cutbanks on U/S & D/S LB.Narrow FP. Cutbanks on U/S LB & D/S RB due to meander. No abutment.Concrete on abutment faces. Blowhole under bridge. Large debris dam D/S. Terraced FP on U/S L side.Leveed channel on edge of MO River FP. Riprapped on both abutments and U/S embankment faces. Large contraction/abutment scour hole on L setback, presumably due to debris deflected flow. Photos taken.Meandering channel has shifted under bridge, causing a channel & subchannel. Riprap on LB and setback. Riprap on U/S LB. On edge of MI River FP.Slumped riprap on RB. Meander U/S, slumped banks U/S & D/S. Levee on U/S LFP that isn't overtoppedRiprap on both setback, filling contraction scour holes. Cutbanks U/S & D/S.Riprap on both banks. Cutbanks on U/S & D/S LB. Levee on U/S RFP. Channel along L edge of FP.Riprap on abutment faces and U/S faces of embankments. Main channel piers have some sort of concrete pad (scour inhibitor?) Small riprap on setbacks. WELL DESIGNED to resist scour--other than webwalls on main channel piers.Riprap on both banks, abutments & U/S faces of embankments. Overflow section on LFP. Channel along R edge of FPContraction scour & local scour on setbacks. Channel migrating to right. Fallen trees in U/S channel indicate mass wasting. Cobbling on abutment faces.Channel shifting to right. Gravel in stream (not natural). Cobbling on abutment faces. Cutbanks U/S & D/S. Erosion gullies on setbacks. U/S LFP appears to be a raised FP or landfill (?)Contraction scour on L setback. Riprap used to fill hole. Channel bends from LFP U/S; cutbank on U/S & D/S RBs. Local scour at first bent from channel on L setback. Riprap on U/S face of L embankment.Slumped riprap on RB & abutment. Bedrock outcrop on LB U/S to D/S. Exposed footing on LB pier on bedrock. Bedrock residue in channel. Bend & cutbank on U/S LB. Contraction/abutment scour on RB. Road overflow section on RFP.Bridge built with 30 deg skew; channel impinges on R embankment, then comes through bridge at approx 40 deg. Overflow sections on both FPs. Small riprap on abutment faces, on U/S LB, & along U/S face of R embankment where flow impinges.Bridge built with 30 deg skew, channel approaches 15 deg from other direction. Large cutbank on U/S LB; channel shifting. Riprap on LB & U/S LB on bend. Cutbanks on U/S & D/S banks. Well vegetated bar on U/S RFPSmall amount of riprap on LB. No vegetation immediately U/S, blowhole. Contraction scour on R setback. Cutbanks on D/S banks. Q500 approx equals QimpBend in channel U/S of bridge. Cutbank on RB at bridge. Blowhole at bridge. Trees falling into U/S channel. Contraction scour on L setback.Riprap on L abutment & U/S face of embankment. Large contraction/abutment scour hole at base of L abutment. Local scour at L setback bent. Sandbar U/S & under bridge on L setback. Cutbank on RB U/S & D/S. Photos taken.Channel shifting to right, causing cutbank on RB. Contraction scour on L setback.Bridge built with 10 deg skew, channel approaches at 25 deg. Channel shifted to L under bridge. Gravel bar on D/S RB. Contraction scour on R setback.Blowhole under bridge. Riprap on U/S banks to stop slumping. Channelized but beginning to meander. U/S of northbound lanes (unknown structure number). Steep banks in median.Riprap on L abutment, both embankment faces on L side, & on RB. Cutbank on U/S & D/S RBs. Riprap on D/S RB approx 2 bridge lengths. Road on R setback. Bents on L setback well protected with riprap.Scheduled to be replaced. No apparent immediate threat.Appears to be over oxbow or slough. Nearby bridge (N385) is leveed & carries flow--this one has no flow & is in backwater area. Not protected.Concrete paving on L abutment & U/S embankment faces. Local, contraction, & abutment scour all observed on L setback. Bedrock outcrop on R side, R pier footing exposed. Along R edge of FP. Cutbank on U/S & D/S RBs. Large hole D/S of bridge on L side.Inlaid cobbling on both abutment & U/S embankment faces. Large meander U/S causing major cutbank & shifting to L. L setback pile bent substantially exposed (12-15 ft). Recent dirtwork in progress, presumably to stop channel shift & cutting bank.Riprap on both abutments & LB. Contraction scour (minor) on L setback. Cutbank on RB U/S & under bridge. Rock outcrop on U/S RB. Meandering channel.Deep channelized ditch. Flow on FPs will occur at Qimp, not before. Slumped concreted & unconcreted riprap on banks & abutments. Levee on U/S RFP.Well protected. Bedrock outcrop on RB, footing exposed. Gravel channel, sand overbank. Concreted riprap on L abutment. Wide setback on L side, some local scour observed. Dual bridge with A3789R1 (U/S). Channel along R edge of FP.Well protected. L abutment paved, R abutment covered with riprap. Clean setbacks, piers appear designed for scour. Levees on both FPs, on edge of MI River FP. Flagged due to unknown pier scour--indeterminable. Dual bridge with A3210 (U/S).Concrete revetment on L abut; riprap on R abut; Massive debris pileup at R main channel peir; D/S structure A-3150; levees on U/S L & R FPsWell protected. Bedrock outcrop on RB, footing exposed. Gravel channel, sand overbank. Concreted riprap on L abutment. Wide setback on L side, some local scour observed. Dual bridge with A2021 (D/S). Channel along R edge of FP.Channel is bedrock; foundations most-likely on bedrockBedrock outcrop on LB. Riprap on R abutment & partially on RB. Contraction scour on R setback. Old road embankment & vertical abutment on U/S RFP. Channel on L edge of FP.Bedrock outcrop on RB. Old bridge abutment immediately U/S of R main channel bent. Riprap on L abutment & bedrock residue on LB. Cutbank on D/S LB. Knoll on U/S RFP. Debris on L main channel bent. Q100 approx equals QimpLake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.Lake Arm, just U/S of Mark Twain Lake. VERY well protected with riprap on banks, abutments & embankments; 4 to 1 slopes; cylindrical piers w/o webwalls. Flagged due to unknown pier scour--indeterminable, but not deemed to be a problem.



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AT10


document.xls

District 03

Concrete pads on abutment & embankment faces. Contraction scour hole on L setback filled with riprap. Meander U/S with cutbank on U/S LB. Well protected.Buried riprap on RB. Channel shifting to R approx 200 ft D/S of southbound lane & RR bridge. Built with 15 deg skew, flow approaches at 10 deg. Median acts as levee on both FPs.Tall grasses in channel; old abutment approx 2 bridge widths D/SLarge blowhole under bridge. Channel shifting to left. Cobbling on L abutment faces. Falling trees in U/S channel.Contraction scour on both setbacks. Shallow channel. Marginal riprap on banks & abutments.Contraction scour on R setback. Channel shifted to left. Weir & gage of unknown ownership U/S.Contraction scour observed on setbacks. Wier & gage of unknown ownership U/S. Cutbanks on U/S & D/S LB.Narrow FP. Cutbanks on U/S LB & D/S RB due to meander. No abutment.Concrete on abutment faces. Blowhole under bridge. Large debris dam D/S. Terraced FP on U/S L side.Leveed channel on edge of MO River FP. Riprapped on both abutments and U/S embankment faces. Large contraction/abutment scour hole on L setback, presumably due to debris deflected flow. Photos taken.Meandering channel has shifted under bridge, causing a channel & subchannel. Riprap on LB and setback. Riprap on U/S LB. On edge of MI River FP.Slumped riprap on RB. Meander U/S, slumped banks U/S & D/S. Levee on U/S LFP that isn't overtoppedRiprap on both setback, filling contraction scour holes. Cutbanks U/S & D/S.Riprap on both banks. Cutbanks on U/S & D/S LB. Levee on U/S RFP. Channel along L edge of FP.Riprap on abutment faces and U/S faces of embankments. Main channel piers have some sort of concrete pad (scour inhibitor?) Small riprap on setbacks. WELL DESIGNED to resist scour--other than webwalls on main channel piers.Riprap on both banks, abutments & U/S faces of embankments. Overflow section on LFP. Channel along R edge of FPContraction scour & local scour on setbacks. Channel migrating to right. Fallen trees in U/S channel indicate mass wasting. Cobbling on abutment faces.Channel shifting to right. Gravel in stream (not natural). Cobbling on abutment faces. Cutbanks U/S & D/S. Erosion gullies on setbacks. U/S LFP appears to be a raised FP or landfill (?)Contraction scour on L setback. Riprap used to fill hole. Channel bends from LFP U/S; cutbank on U/S & D/S RBs. Local scour at first bent from channel on L setback. Riprap on U/S face of L embankment.Slumped riprap on RB & abutment. Bedrock outcrop on LB U/S to D/S. Exposed footing on LB pier on bedrock. Bedrock residue in channel. Bend & cutbank on U/S LB. Contraction/abutment scour on RB. Road overflow section on RFP.Bridge built with 30 deg skew; channel impinges on R embankment, then comes through bridge at approx 40 deg. Overflow sections on both FPs. Small riprap on abutment faces, on U/S LB, & along U/S face of R embankment where flow impinges.Bridge built with 30 deg skew, channel approaches 15 deg from other direction. Large cutbank on U/S LB; channel shifting. Riprap on LB & U/S LB on bend. Cutbanks on U/S & D/S banks. Well vegetated bar on U/S RFPSmall amount of riprap on LB. No vegetation immediately U/S, blowhole. Contraction scour on R setback. Cutbanks on D/S banks. Q500 approx equals QimpBend in channel U/S of bridge. Cutbank on RB at bridge. Blowhole at bridge. Trees falling into U/S channel. Contraction scour on L setback.Riprap on L abutment & U/S face of embankment. Large contraction/abutment scour hole at base of L abutment. Local scour at L setback bent. Sandbar U/S & under bridge on L setback. Cutbank on RB U/S & D/S. Photos taken.Channel shifting to right, causing cutbank on RB. Contraction scour on L setback.Bridge built with 10 deg skew, channel approaches at 25 deg. Channel shifted to L under bridge. Gravel bar on D/S RB. Contraction scour on R setback.Blowhole under bridge. Riprap on U/S banks to stop slumping. Channelized but beginning to meander. U/S of northbound lanes (unknown structure number). Steep banks in median.Riprap on L abutment, both embankment faces on L side, & on RB. Cutbank on U/S & D/S RBs. Riprap on D/S RB approx 2 bridge lengths. Road on R setback. Bents on L setback well protected with riprap.Scheduled to be replaced. No apparent immediate threat.Appears to be over oxbow or slough. Nearby bridge (N385) is leveed & carries flow--this one has no flow & is in backwater area. Not protected.Concrete paving on L abutment & U/S embankment faces. Local, contraction, & abutment scour all observed on L setback. Bedrock outcrop on R side, R pier footing exposed. Along R edge of FP. Cutbank on U/S & D/S RBs. Large hole D/S of bridge on L side.Inlaid cobbling on both abutment & U/S embankment faces. Large meander U/S causing major cutbank & shifting to L. L setback pile bent substantially exposed (12-15 ft). Recent dirtwork in progress, presumably to stop channel shift & cutting bank.Riprap on both abutments & LB. Contraction scour (minor) on L setback. Cutbank on RB U/S & under bridge. Rock outcrop on U/S RB. Meandering channel.Deep channelized ditch. Flow on FPs will occur at Qimp, not before. Slumped concreted & unconcreted riprap on banks & abutments. Levee on U/S RFP.Well protected. Bedrock outcrop on RB, footing exposed. Gravel channel, sand overbank. Concreted riprap on L abutment. Wide setback on L side, some local scour observed. Dual bridge with A3789R1 (U/S). Channel along R edge of FP.Well protected. L abutment paved, R abutment covered with riprap. Clean setbacks, piers appear designed for scour. Levees on both FPs, on edge of MI River FP. Flagged due to unknown pier scour--indeterminable. Dual bridge with A3210 (U/S).Concrete revetment on L abut; riprap on R abut; Massive debris pileup at R main channel peir; D/S structure A-3150; levees on U/S L & R FPsWell protected. Bedrock outcrop on RB, footing exposed. Gravel channel, sand overbank. Concreted riprap on L abutment. Wide setback on L side, some local scour observed. Dual bridge with A2021 (D/S). Channel along R edge of FP.Channel is bedrock; foundations most-likely on bedrockBedrock outcrop on LB. Riprap on R abutment & partially on RB. Contraction scour on R setback. Old road embankment & vertical abutment on U/S RFP. Channel on L edge of FP.Bedrock outcrop on RB. Old bridge abutment immediately U/S of R main channel bent. Riprap on L abutment & bedrock residue on LB. Cutbank on D/S LB. Knoll on U/S RFP. Debris on L main channel bent. Q100 approx equals QimpLake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.Lake Arm, just U/S of Mark Twain Lake. VERY well protected with riprap on banks, abutments & embankments; 4 to 1 slopes; cylindrical piers w/o webwalls. Flagged due to unknown pier scour--indeterminable, but not deemed to be a problem.

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document.xls

District 03



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A3798 N FK SALT RI MO107 MONROE 1 2012 890 Q100 44000 44000 REG 6.9 -- -- -- -- -- -- --A3799 S FK SALT RI MO107 MONROE 1 1652 1210 Q100 15100 15100 REG 4.1 -- -- -- -- -- -- --A3815 OTTER CR US024 MONROE 1 625 100 Q100 13200 13200 REG 6.8 -- -- -- -- -- -- --A3816 N FK SALT RI US024 MONROE 1 764 769 Q100 42600 42600 REG 12.2 -- -- -- -- -- -- --A4396 M FK SALT RI MO015 MONROE 1 345 334 Q100 25700 25700 REG 15.9 0.0 L -- 13.3 21.5 11.2 12.4A4701 ELK FK SALT RI MO015 MONROE 1 465 260 Q100 22800 22800 REG 11.3 -- -- -- -- -- -- --A3603 LOUTRE RI MO094 MONTGOMERY 2 394 399 Q100 41700 41700 REG 18.5 1.6 L 32.2 19.7 8.8 3.3 27.1A736 DRY FK CR RT00K MONTGOMERY 2 111 9.03 Q100 6370 4945 BC 10.3 0.0 L -- 1.7 3.3 -- 6.2A737 LOUTRE RI RT00K MONTGOMERY 2 323 331 Q100 39000 39000 REG 20.8 11.7 L 35.7 24.4 10.7 7.8 27.2J193 BEAR CR MO019 MONTGOMERY 2 272 45.3 Q100 15500 15500 REG 12.0 -- -- -- -- -- -- --L389 LOUTRE RI IS070 MONTGOMERY 1 581 199 Q100 26000 26000 REG 11.5 10.0 L 9.4 9.0 8.6 7.6 18.2L564 DRY FK CR RT00K MONTGOMERY 2 237 28.3 Q100 12600 11400 BC 12.2 3.2 L 9.1 8.5 3.9 -- 18.1N785 CLEAR CR RT00J MONTGOMERY 2 126 12.0 Q100 6240 4895 BC 10.1 4.0 L 5.4 6.6 3.3 -- 4.1R550 BEAR CR RT00F MONTGOMERY 1 128 11.9 Q100 4960 4960 REG 11.1 7.1 L 3.7 0.2 3.2 -- 14.5X108 ELKHORN CR MO161 MONTGOMERY 1 115 16.1 Q100 5140 5140 REG 12.4 9.1 L -- 10.2 5.2 -- 13.4A1345 BUFFALO CR RT00D PIKE 1 215 39.4 Q100 13600 13600 REG 13.7 11.9 L 3.4 4.1 6.4 -- 19.5A4056 SALT RI MO079 PIKE 1 345 2830 Q100 72100 53650 BC 23.2 1.3 L 7.3 5.3 8.7 -- 22.7H231 BR PENO CR US061 PIKE 1 128 4.81 Q100 7590 5815 BC 15.0 6.7 L -- -- 8.6 -- 11.7K318 FOX CR MO079 PIKE 1 83 4.20 Q100 4060 4060 REG 11.3 5.1 L -- -- 3.9 -- 10.4K323 GWINS CR MO079 PIKE 1 169 31.6 Q100 10800 9490 BC 13.0 0.0 L -- 7.8 8.6 -- 8.2N753 SANDY CR RT0AC PIKE 1 160 22.5 Q100 5820 5820 REG 11.2 12.0 L 5.8 0.6 7.6 -- 13.9P575 BIG LEAD CR RT00O PIKE 1 97 11.7 Q100 3920 3920 REG 10.6 4.6 L 15.3 11.6 3.2 -- 15.8A1061 BEAR CR US061 RALLS 1 201 29.4 Q100 7980 7980 REG 10.0 -- -- -- -- -- -- --A1062 SALT RI US061 RALLS 1 707 2490 Q100 75000 75000 REG 18.1 -- -- -- -- -- -- --A3900 SALT RI US061 RALLS 1 511 2490 Q100 75000 75000 REG 22.0 -- -- -- -- -- -- --G9231 SPENCER CR US061 RALLS 1 383 206 Q100 23100 23100 REG 12.8 -- -- -- -- -- -- --N218 SALT RI RT00V RALLS 1 485 2510 Q100 79300 61150 BC 22.6 0.0 L 3.2 3.2 28.4 13.5 21.8R434 SALT RI RT00H RALLS 1 653 2420 Q100 71400 71400 REG 19.2 5.6 L 18.4 19.6 8.7 7.7 18.4H857 WYACONDA RI MO015 SCOTLAND 1 203 74.4 Q100 12400 12400 REG 16.6 2.5 L -- -- 9.6 7.7 12.6L295 S WYACONDA RI RT00H SCOTLAND 1 204 100 Q100 13900 13900 REG 16.5 15.8 L -- -- 10.6 -- 21.7N265 BEAR CR RT00U SCOTLAND 1 117 21.5 Q100 5960 5960 REG 11.6 7.6 L 15.6 17.3 3.9 -- 19.3N345 INDIAN CR RT00M SCOTLAND 1 91 11.2 Q100 4210 3580 BC 10.1 8.2 L 15.2 15.0 3.9 -- 15.4S165 BEAR CR RT00A SCOTLAND 1 66 1.88 Q100 1200 1200 REG 7.7 16.9 L 14.2 12.1 3.9 -- 24.0X173 N BR WYACONDA RI RT00H SCOTLAND 1 111 49.6 Q100 8630 6420 BC 12.8 6.4 L 12.1 6.7 6.1 -- 20.6X174 N FK N WYACONDA RI RT00H SCOTLAND 1 107 8.43 Q100 3530 2430 BC 8.3 5.0 L 12.5 10.3 3.9 -- 19.2Y29 N WYACONDA RI RT00H SCOTLAND 1 121 82.8 Q100 10900 10900 REG 17.8 0.0 L -- -- 9.6 -- 13.0A3742 N FK SALT RI US036 SHELBY 1 450 606 Q100 48400 48400 REG 18.2 -- -- -- -- -- -- --P40 N TIGER FK RT00W SHELBY 1 101 29.1 Q100 7550 5735 BC 12.8 5.6 L -- 10.8 3.2 -- 18.0P680 HILTON BR RT00H SHELBY 1 86 10.4 Q100 4090 3625 BC 10.5 14.5 L 16.7 17.3 3.9 -- 19.8R599 NORTH RI RT00W SHELBY 1 242 98.4 Q100 13200 13200 REG 12.1 12.5 L 16.3 14.7 7.6 -- 17.9T06011 PERRY CR MO151 SHELBY 1 96 3.78 Q100 2240 2240 REG 7.9 8.3 L 13.1 12.5 3.9 -- 16.7X496 OTTER CR RT0DD SHELBY 1 93 22.4 Q100 5240 3555 BC 9.7 1.9 L 15.3 15.8 3.9 -- 17.1A4316 BIG CR MO047 WARREN 1 151 26.7 Q100 9790 9790 REG 14.6 3.2 L -- 5.1 9.9 -- 16.9G704 CREEK OR070 WARREN 1 44 1.19 Q100 1500 1500 REG 9.1 -- -- -- -- -- -- --N305 TUQUE WOLF CR RT00D WARREN 2 148 25.7 Q100 12500 12500 REG 15.1 18.4 L 17.2 18.8 7.8 -- 24.8


105657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100

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M6


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E7


G7


P10


document.xls

District 03


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- Q500 58300 58300 REG 8.2 -- -- -- -- -- -- -- -- N N N N N Y Y -- Bedrock bluffs on both sides. Riprap on both abutments. VERY well protected. Lake--no velocities.-- Q500 21800 21800 REG 5.1 -- -- -- -- -- -- -- -- N N N N N Y Y -- Bedrock bluffs on both sides. Riprap on both abutments. VERY well protected. Lake--no velocities.-- Q500 17800 17800 REG 8.1 -- -- -- -- -- -- -- -- N N N N N Y Y -- Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.-- Q500 56400 56400 REG 14.5 -- -- -- -- -- -- -- -- N N N N N Y Y -- Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.

16.6 Q500 34400 34400 REG 18.4 0.0 L -- 16.6 21.6 11.2 17.2 20.3 P N Y P Y Y ? -- Bedrock outcrop on U/S & D/S LB. Riprap on R abutment & embankment faces, & RB. Concreted riprap on L abutment. Channel in hairpin bend at bridge. Large cobbles & riprap on U/S LB & LFP. Potential road overflow on R side.-- Q500 30500 30500 REG 13.5 -- -- -- -- -- -- -- -- N N P N Y Y Y -- Well protected. Riprap on abutment & embankment faces, & on L & R banks U/S up to 1 bridge length U/S. Piers well designed for scour; wide, clean setbacks. Slight lateral shifting of channel. Flagged due to unknown pier scour--not deemed to be a problem.

27.1 Q500 55600 55600 REG 21.4 1.5 L 40.0 25.7 8.8 3.3 29.6 29.6 N N N Y Y Y N -- Riprap on R abutment, L & RBs. Contraction scour on R setback recently filled with dirt. Levee on RFP, Road grade on LFP. Slumped banks U/S LB & D/S RB immediately D/S of bridge. Subject to MO River backwater.14.8 Qimp 3520 3520 BC 8.4 1.7 L -- 0.0 3.2 -- -- 11.2 Y P Y Y Y Y N -- Riprap on both abutments & on RB U/S & D/S. Meander with cutbank on U/S RB. Raised FP on U/S L side. Local scour at L bent.25.4 Q500 52100 52100 REG 23.8 13.7 L 44.8 32.1 10.7 7.8 29.9 28.1 Y N N Y Y Y N -- Riprap on both abutments & U/S embankment faces. Overflow section on RFP. Recent dirtwork on R setback, apparently to fill contraction scour hole. Large woody debris in U/S & D/S channels.

-- Q500 21300 21300 REG 14.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A-514117.9 Q500 34200 34200 REG 13.4 12.4 L 12.6 12.2 8.6 7.7 20.4 20.3 N N N Y Y Y N -- D/S of westbound bridge of unknown number. Riprap on abutment faces and on L & RBs. Wide setbacks. Large meander w/ cutbanks D/S. Mild meander U/S of U/S bridge. Recent dirtwork on R setback, probably to fill contraction scour. U/S bridge similar protection.14.9 Qimp 10200 10200 BC 11.4 3.7 L 8.2 7.5 3.9 -- 16.7 13.5 Y Y N Y Y Y N -- Riprap on R abutment. Meander bend U/S & D/S. Recent dirtwork on L setback. Minor discontinuous levee on D/S LFP & U/S RFP.20.7 Qimp 3550 3550 BC 8.3 6.7 L 3.5 4.7 3.2 -- -- 18.9 Y Y P N Y Y N -- Riprap on R abutment. Contraction scour on R setback. Gravel bar D/S RB. Meander with cutbank approx 500 ft D/S. Along L edge of FP. Overflow section on RFP.14.2 Q500 6730 6730 REG 13.3 12.2 L 5.9 2.3 3.2 -- 18.8 18.4 N P P Y Y Y N -- Riprap on R abutment & bank extending to approx 100 ft U/S. Contraction scour & gravel splay on L setback. Channel has shifted to R.18.2 Q500 7020 7020 REG 13.7 11.6 L -- 15.2 5.2 -- 15.9 20.0 N P N Y Y Y N -- Riprap on L abutment & bank; inlaid cobbling on R abutment. Large concrete remains immediately D/S. Cutbank under bridge on R side. Trees in channel D/S.19.7 Q500 17900 17900 REG 15.9 14.9 L 5.9 6.6 6.4 -- 21.4 21.7 P N N Y Y Y N -- Riprap on L abutment. Meanders with cutbanks U/S & D/s. Channel shifted to L. Large blowhole under bridge, particularly on L side just D/S of old bridge pier remains. Potential overflow section on LFP. Qimp approx equals Q50023.2 Qimp 35200 35200 BC 18.0 4.4 L 2.6 0.7 8.7 -- 16.8 17.7 Y Y N Y Y N -- -- Appears channelized. No levees. Overflow sections on both FPs. Contraction scour observedon R setback. Slumping bank on U/S LB.38.0 Qimp 4040 4040 BC 12.2 8.4 L -- -- 8.6 -- -- 31.6 Y N Y Y Y N -- -- D/S of new US 61 bridges. Along L edge of FP. Pier on LB has exposed footings. Vertical abutment on R side. Photos taken.13.9 Q500 5410 5410 REG 13.4 13.8 L -- -- 3.9 -- 14.7 17.9 P P N Y Y N -- -- Partly leveed with potential overflow sections on both sides. Assumed flow would equal given depths after overtopping partial levees. Railroad bridge & embankment will contain flow--is approx 1 bridge length D/S.

8.2 Qimp 8180 8180 BC 11.9 2.7 L -- 4.1 8.6 -- 3.5 3.5 Y N N Y Y Y N -- Riprap on both abutments & on RB U/S to approx 1.5 bridge lengths. Large bend causing cutbank on U/S RB approx 1.75 bridge lengths. Unskewed RR bridge approx 1 bridge length D/S. Blowhole at bridge. Contraction scour on L "setback". Channel parallels road U/S.20.4 Q500 7960 7960 REG 13.0 14.6 L 8.5 2.7 7.7 -- 17.2 21.9 P N N Y Y N -- -- Old bridge abutment on RB with concrete debris. Contraction scour on L setback. Meander with cutbanks on U/S RB. Potential overflow section on both FPs. Blowhole under bridge on R side behind riprap.16.1 Q500 5410 5410 REG 12.5 7.3 L 18.6 15.9 3.2 -- 19.3 19.5 P N N Y Y Y N -- Riprap on L & R banks. Broken concrete on abutments. Meanders U/S & D/S with cutbanks. Trees across channel U/S & D/S. Potential overflow section on LFP.

-- Q500 10800 10800 REG 12.0 -- -- -- -- -- -- -- -- N N Y N N M N -- Dual bridge with A4712 (U/S). Flagged due to abutment scour--is actually only gully erosion, not deemed to be a problem. U/S bridge will control flow, & U/S bridge not flagged.-- Q500 98700 98700 REG 21.3 -- -- -- -- -- -- -- -- N N P N N Y N -- Dual bridge with A3900 (U/S). Regulated by Mark Twain Lake. Flagged due to exposed piles but with unknown scour--not deemed to be a problem. Flow will be controlled by U/S bridge.-- Q500 98700 98700 REG 25.9 -- -- -- -- -- -- -- -- N N P N N N N -- Dual bridge with A1062 (D/S). Regulated by Mark Twain Lake. Built after lake; approx 200 ft shorter than D/S bridge (built before lake). Designed as though scour not a worry. Flagged due to exposed piles but with unknown pier scour--not deemed to be a problem.-- Q500 30600 30600 REG 15.2 -- -- -- -- -- -- -- -- P P N N N Y ? -- New bridge for extra lanes of US 61 being built U/S. Old bridge heavily riprapped in prep for new bridge. New bridge designed to resist scour (no doubt) & will control flow at old bridge. Rock has been placed in U/S channel for a crossing.

19.7 Qimp 43000 43000 BC 18.5 2.2 L 0.0 0.0 28.3 13.5 16.8 12.4 Y N P Y Y M N -- Partial riprap on abutment faces & U/S faces of embankments. Old contraction/abutment scour hole on L setback. Large meander U/S, with cutbanks on both U/S banks. Overflow section on LFP. Small road embankment on U/S RB may act as a spurdike of a sort.22.6 Q500 94200 94200 REG 22.0 7.8 L 23.1 24.5 8.7 7.8 21.4 25.1 P N P Y Y Y N -- Riprap on both abutments. Cutbanks observed U/S. D/S channel has an island. Regulated flow from Mark Twain Lake. Potential overflow section on RFP.13.7 Q500 16600 16600 REG 19.0 7.1 L -- -- 9.6 7.7 17.2 18.2 P P N Y Y N -- -- Deep channel. Overflow sections on both FPs, but FP spoon shaped. Q's didn't get much out of banks.15.8 Q500 18700 18700 REG 19.1 20.2 L -- -- 10.6 -- 24.0 20.0 P N N Y Y N -- -- Deep channel. Overflow sections on both FPs. Gently sloping bank under bridge on LB. Fallen & falling trees on U/S & D/S banks indicate slumping.19.7 Q500 8120 8120 REG 14.0 10.8 L 19.2 21.0 3.9 -- 21.4 21.8 N P N Y Y Y N -- Riprap on L abutment & both banks to fill old contraction scour holes. Meanders U/S & D/S. Trees in channel U/S. Small riprap on U/S faces of embankments.17.2 Qimp 2950 2950 BC 9.0 8.6 L 12.8 12.5 3.9 -- 13.3 15.1 Y Y N Y Y Y N -- Riprap on both banks--used to fill contraction scour holes. Contraction scour hole still evident on LB. Meander with cutbanks D/S. Pile exposure on R abutment behind riprap.24.6 Q500 1700 1700 REG 9.5 20.5 L 16.9 15.7 3.9 -- 28.9 29.1 P Y N Y Y M N -- Cobbling on R abutment. Contraction scour on L setback. Flagged for "pile exposure", probably due to local scour at pile bent (no true pile exposure).17.8 Qimp 4210 4210 BC 9.9 7.0 L 7.7 2.8 6.1 -- 16.8 12.4 Y P N Y Y N -- -- Riprap on LB but not on abutment. Meander with cutbanks U/S; fallen trees. Overflow section on LFP.20.5 Qimp 1330 1330 BC 5.8 2.5 L 6.0 4.1 3.8 -- 7.0 9.9 Y P N Y Y M N -- Shallow channel. Partial riprap on L abutment. Trees in U/S channel. Blowhole under bridge. Overflow section on LFP.13.0 Q500 14800 14800 REG 20.3 0.0 L -- -- 9.6 -- 17.7 17.7 N N N Y Y Y N -- DEEP channel. Riprap on both banks & abutments, obviously to protect from slumping due to channel deepening. Meander U/S with cutbanks. Photos taken

-- Q500 63000 63000 REG 21.4 -- -- -- -- -- -- -- -- N N P N Y Y Y -- Very well protected. U/S of lake arm. Riprapped on both abutments, on road embankments faces, and on RB. Cylindrical piers w/o webwalls. Flagged due to unknown pier scour--indeterminable, but not deemed to be a problem.17.0 Qimp 3920 3920 BC 10.2 6.3 L -- 5.0 3.2 -- 13.1 12.1 Y P N Y Y Y N -- Riprap on RB & abutment. Concreted riprap on LB & U/S face of embankment. Meander U/S, riprap on U/S LB to stop migration. Fallen trees in channel. Overflow section on LFP.20.1 Qimp 3160 3160 BC 9.7 15.2 L 15.4 16.0 3.9 -- 18.8 19.3 Y Y N Y Y Y ? -- Riprap on both abutments & banks. Blowhole under bridge. Meanders with cutbanks U/S & D/S. Overflow sections on both FPs.19.5 Q500 17800 17800 REG 14.5 15.5 L 19.8 18.0 7.7 -- 20.8 21.6 P P N Y Y N -- -- Shallow channel with gently sloping banks under bridge & D/S. Meander with cutbanks U/S. Contraction scour on R setback. Channel shifting to L.14.1 Q500 3110 3110 REG 9.6 11.6 L 16.1 15.8 3.9 -- 19.6 17.4 P Y N Y Y Y N -- Riprap on RB & abutment. Contraction scour on L setback. Fallen trees in U/S channel.19.6 Qimp 1870 1870 BC 6.6 3.4 L 8.8 9.6 3.8 -- 11.2 14.0 Y P N Y Y Y N -- Slumped riprap on both abutments. Large blowhole under bridge. Meander with cutbanks & fallen trees U/S.17.0 Q500 13000 13000 REG 16.7 4.6 L -- 8.5 10.0 -- 20.0 20.0 N N N Y N Y ? -- Riprap on both abutments, U/S embankment faces & on RB. Meander with gravel bar and cutbank U/S. Gravel splay D/S LB. Bridge built without skew, channel approaches at 15 deg.

-- Q500 2070 2070 REG 11.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In the process of being bypassed with new grade & box culvert.24.1 Q500 17300 17300 REG 18.4 21.1 L 21.5 23.2 7.8 -- 27.8 27.0 N N N Y Y Y N -- Riprap on R abutment & U/S embankment face. Contraction scour on R setback. Meander with minor cutbank U/S. Road embankment will funnel flow on U/S LFP.


105657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100

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Z6


AC10


document.xls

District 03

Comment codes:

Notes


Bedrock bluffs on both sides. Riprap on both abutments. VERY well protected. Lake--no velocities.Bedrock bluffs on both sides. Riprap on both abutments. VERY well protected. Lake--no velocities.Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.Bedrock outcrop on U/S & D/S LB. Riprap on R abutment & embankment faces, & RB. Concreted riprap on L abutment. Channel in hairpin bend at bridge. Large cobbles & riprap on U/S LB & LFP. Potential road overflow on R side.Well protected. Riprap on abutment & embankment faces, & on L & R banks U/S up to 1 bridge length U/S. Piers well designed for scour; wide, clean setbacks. Slight lateral shifting of channel. Flagged due to unknown pier scour--not deemed to be a problem.Riprap on R abutment, L & RBs. Contraction scour on R setback recently filled with dirt. Levee on RFP, Road grade on LFP. Slumped banks U/S LB & D/S RB immediately D/S of bridge. Subject to MO River backwater.Riprap on both abutments & on RB U/S & D/S. Meander with cutbank on U/S RB. Raised FP on U/S L side. Local scour at L bent.Riprap on both abutments & U/S embankment faces. Overflow section on RFP. Recent dirtwork on R setback, apparently to fill contraction scour hole. Large woody debris in U/S & D/S channels.Replaced with A-5141D/S of westbound bridge of unknown number. Riprap on abutment faces and on L & RBs. Wide setbacks. Large meander w/ cutbanks D/S. Mild meander U/S of U/S bridge. Recent dirtwork on R setback, probably to fill contraction scour. U/S bridge similar protection.Riprap on R abutment. Meander bend U/S & D/S. Recent dirtwork on L setback. Minor discontinuous levee on D/S LFP & U/S RFP.Riprap on R abutment. Contraction scour on R setback. Gravel bar D/S RB. Meander with cutbank approx 500 ft D/S. Along L edge of FP. Overflow section on RFP.Riprap on R abutment & bank extending to approx 100 ft U/S. Contraction scour & gravel splay on L setback. Channel has shifted to R.Riprap on L abutment & bank; inlaid cobbling on R abutment. Large concrete remains immediately D/S. Cutbank under bridge on R side. Trees in channel D/S.Riprap on L abutment. Meanders with cutbanks U/S & D/s. Channel shifted to L. Large blowhole under bridge, particularly on L side just D/S of old bridge pier remains. Potential overflow section on LFP. Qimp approx equals Q500Appears channelized. No levees. Overflow sections on both FPs. Contraction scour observedon R setback. Slumping bank on U/S LB.D/S of new US 61 bridges. Along L edge of FP. Pier on LB has exposed footings. Vertical abutment on R side. Photos taken.Partly leveed with potential overflow sections on both sides. Assumed flow would equal given depths after overtopping partial levees. Railroad bridge & embankment will contain flow--is approx 1 bridge length D/S.Riprap on both abutments & on RB U/S to approx 1.5 bridge lengths. Large bend causing cutbank on U/S RB approx 1.75 bridge lengths. Unskewed RR bridge approx 1 bridge length D/S. Blowhole at bridge. Contraction scour on L "setback". Channel parallels road U/S.Old bridge abutment on RB with concrete debris. Contraction scour on L setback. Meander with cutbanks on U/S RB. Potential overflow section on both FPs. Blowhole under bridge on R side behind riprap.Riprap on L & R banks. Broken concrete on abutments. Meanders U/S & D/S with cutbanks. Trees across channel U/S & D/S. Potential overflow section on LFP.Dual bridge with A4712 (U/S). Flagged due to abutment scour--is actually only gully erosion, not deemed to be a problem. U/S bridge will control flow, & U/S bridge not flagged.Dual bridge with A3900 (U/S). Regulated by Mark Twain Lake. Flagged due to exposed piles but with unknown scour--not deemed to be a problem. Flow will be controlled by U/S bridge.Dual bridge with A1062 (D/S). Regulated by Mark Twain Lake. Built after lake; approx 200 ft shorter than D/S bridge (built before lake). Designed as though scour not a worry. Flagged due to exposed piles but with unknown pier scour--not deemed to be a problem.New bridge for extra lanes of US 61 being built U/S. Old bridge heavily riprapped in prep for new bridge. New bridge designed to resist scour (no doubt) & will control flow at old bridge. Rock has been placed in U/S channel for a crossing.Partial riprap on abutment faces & U/S faces of embankments. Old contraction/abutment scour hole on L setback. Large meander U/S, with cutbanks on both U/S banks. Overflow section on LFP. Small road embankment on U/S RB may act as a spurdike of a sort.Riprap on both abutments. Cutbanks observed U/S. D/S channel has an island. Regulated flow from Mark Twain Lake. Potential overflow section on RFP.Deep channel. Overflow sections on both FPs, but FP spoon shaped. Q's didn't get much out of banks.Deep channel. Overflow sections on both FPs. Gently sloping bank under bridge on LB. Fallen & falling trees on U/S & D/S banks indicate slumping.Riprap on L abutment & both banks to fill old contraction scour holes. Meanders U/S & D/S. Trees in channel U/S. Small riprap on U/S faces of embankments.Riprap on both banks--used to fill contraction scour holes. Contraction scour hole still evident on LB. Meander with cutbanks D/S. Pile exposure on R abutment behind riprap.Cobbling on R abutment. Contraction scour on L setback. Flagged for "pile exposure", probably due to local scour at pile bent (no true pile exposure).Riprap on LB but not on abutment. Meander with cutbanks U/S; fallen trees. Overflow section on LFP.Shallow channel. Partial riprap on L abutment. Trees in U/S channel. Blowhole under bridge. Overflow section on LFP.DEEP channel. Riprap on both banks & abutments, obviously to protect from slumping due to channel deepening. Meander U/S with cutbanks. Photos takenVery well protected. U/S of lake arm. Riprapped on both abutments, on road embankments faces, and on RB. Cylindrical piers w/o webwalls. Flagged due to unknown pier scour--indeterminable, but not deemed to be a problem.Riprap on RB & abutment. Concreted riprap on LB & U/S face of embankment. Meander U/S, riprap on U/S LB to stop migration. Fallen trees in channel. Overflow section on LFP.Riprap on both abutments & banks. Blowhole under bridge. Meanders with cutbanks U/S & D/S. Overflow sections on both FPs.Shallow channel with gently sloping banks under bridge & D/S. Meander with cutbanks U/S. Contraction scour on R setback. Channel shifting to L.Riprap on RB & abutment. Contraction scour on L setback. Fallen trees in U/S channel.Slumped riprap on both abutments. Large blowhole under bridge. Meander with cutbanks & fallen trees U/S.Riprap on both abutments, U/S embankment faces & on RB. Meander with gravel bar and cutbank U/S. Gravel splay D/S LB. Bridge built without skew, channel approaches at 15 deg.In the process of being bypassed with new grade & box culvert.Riprap on R abutment & U/S embankment face. Contraction scour on R setback. Meander with minor cutbank U/S. Road embankment will funnel flow on U/S LFP.


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Bedrock bluffs on both sides. Riprap on both abutments. VERY well protected. Lake--no velocities.Bedrock bluffs on both sides. Riprap on both abutments. VERY well protected. Lake--no velocities.Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.Lake arm. VERY well protected with riprap on banks, abutments, & embankment faces; 4 to 1 slopes. Piers designed for scour. Flagged due to unknown scour--not deemed to be a problem.Bedrock outcrop on U/S & D/S LB. Riprap on R abutment & embankment faces, & RB. Concreted riprap on L abutment. Channel in hairpin bend at bridge. Large cobbles & riprap on U/S LB & LFP. Potential road overflow on R side.Well protected. Riprap on abutment & embankment faces, & on L & R banks U/S up to 1 bridge length U/S. Piers well designed for scour; wide, clean setbacks. Slight lateral shifting of channel. Flagged due to unknown pier scour--not deemed to be a problem.Riprap on R abutment, L & RBs. Contraction scour on R setback recently filled with dirt. Levee on RFP, Road grade on LFP. Slumped banks U/S LB & D/S RB immediately D/S of bridge. Subject to MO River backwater.Riprap on both abutments & on RB U/S & D/S. Meander with cutbank on U/S RB. Raised FP on U/S L side. Local scour at L bent.Riprap on both abutments & U/S embankment faces. Overflow section on RFP. Recent dirtwork on R setback, apparently to fill contraction scour hole. Large woody debris in U/S & D/S channels.Replaced with A-5141D/S of westbound bridge of unknown number. Riprap on abutment faces and on L & RBs. Wide setbacks. Large meander w/ cutbanks D/S. Mild meander U/S of U/S bridge. Recent dirtwork on R setback, probably to fill contraction scour. U/S bridge similar protection.Riprap on R abutment. Meander bend U/S & D/S. Recent dirtwork on L setback. Minor discontinuous levee on D/S LFP & U/S RFP.Riprap on R abutment. Contraction scour on R setback. Gravel bar D/S RB. Meander with cutbank approx 500 ft D/S. Along L edge of FP. Overflow section on RFP.Riprap on R abutment & bank extending to approx 100 ft U/S. Contraction scour & gravel splay on L setback. Channel has shifted to R.Riprap on L abutment & bank; inlaid cobbling on R abutment. Large concrete remains immediately D/S. Cutbank under bridge on R side. Trees in channel D/S.Riprap on L abutment. Meanders with cutbanks U/S & D/s. Channel shifted to L. Large blowhole under bridge, particularly on L side just D/S of old bridge pier remains. Potential overflow section on LFP. Qimp approx equals Q500Appears channelized. No levees. Overflow sections on both FPs. Contraction scour observedon R setback. Slumping bank on U/S LB.D/S of new US 61 bridges. Along L edge of FP. Pier on LB has exposed footings. Vertical abutment on R side. Photos taken.Partly leveed with potential overflow sections on both sides. Assumed flow would equal given depths after overtopping partial levees. Railroad bridge & embankment will contain flow--is approx 1 bridge length D/S.Riprap on both abutments & on RB U/S to approx 1.5 bridge lengths. Large bend causing cutbank on U/S RB approx 1.75 bridge lengths. Unskewed RR bridge approx 1 bridge length D/S. Blowhole at bridge. Contraction scour on L "setback". Channel parallels road U/S.Old bridge abutment on RB with concrete debris. Contraction scour on L setback. Meander with cutbanks on U/S RB. Potential overflow section on both FPs. Blowhole under bridge on R side behind riprap.Riprap on L & R banks. Broken concrete on abutments. Meanders U/S & D/S with cutbanks. Trees across channel U/S & D/S. Potential overflow section on LFP.Dual bridge with A4712 (U/S). Flagged due to abutment scour--is actually only gully erosion, not deemed to be a problem. U/S bridge will control flow, & U/S bridge not flagged.Dual bridge with A3900 (U/S). Regulated by Mark Twain Lake. Flagged due to exposed piles but with unknown scour--not deemed to be a problem. Flow will be controlled by U/S bridge.Dual bridge with A1062 (D/S). Regulated by Mark Twain Lake. Built after lake; approx 200 ft shorter than D/S bridge (built before lake). Designed as though scour not a worry. Flagged due to exposed piles but with unknown pier scour--not deemed to be a problem.New bridge for extra lanes of US 61 being built U/S. Old bridge heavily riprapped in prep for new bridge. New bridge designed to resist scour (no doubt) & will control flow at old bridge. Rock has been placed in U/S channel for a crossing.Partial riprap on abutment faces & U/S faces of embankments. Old contraction/abutment scour hole on L setback. Large meander U/S, with cutbanks on both U/S banks. Overflow section on LFP. Small road embankment on U/S RB may act as a spurdike of a sort.Riprap on both abutments. Cutbanks observed U/S. D/S channel has an island. Regulated flow from Mark Twain Lake. Potential overflow section on RFP.Deep channel. Overflow sections on both FPs, but FP spoon shaped. Q's didn't get much out of banks.Deep channel. Overflow sections on both FPs. Gently sloping bank under bridge on LB. Fallen & falling trees on U/S & D/S banks indicate slumping.Riprap on L abutment & both banks to fill old contraction scour holes. Meanders U/S & D/S. Trees in channel U/S. Small riprap on U/S faces of embankments.Riprap on both banks--used to fill contraction scour holes. Contraction scour hole still evident on LB. Meander with cutbanks D/S. Pile exposure on R abutment behind riprap.Cobbling on R abutment. Contraction scour on L setback. Flagged for "pile exposure", probably due to local scour at pile bent (no true pile exposure).Riprap on LB but not on abutment. Meander with cutbanks U/S; fallen trees. Overflow section on LFP.Shallow channel. Partial riprap on L abutment. Trees in U/S channel. Blowhole under bridge. Overflow section on LFP.DEEP channel. Riprap on both banks & abutments, obviously to protect from slumping due to channel deepening. Meander U/S with cutbanks. Photos takenVery well protected. U/S of lake arm. Riprapped on both abutments, on road embankments faces, and on RB. Cylindrical piers w/o webwalls. Flagged due to unknown pier scour--indeterminable, but not deemed to be a problem.Riprap on RB & abutment. Concreted riprap on LB & U/S face of embankment. Meander U/S, riprap on U/S LB to stop migration. Fallen trees in channel. Overflow section on LFP.Riprap on both abutments & banks. Blowhole under bridge. Meanders with cutbanks U/S & D/S. Overflow sections on both FPs.Shallow channel with gently sloping banks under bridge & D/S. Meander with cutbanks U/S. Contraction scour on R setback. Channel shifting to L.Riprap on RB & abutment. Contraction scour on L setback. Fallen trees in U/S channel.Slumped riprap on both abutments. Large blowhole under bridge. Meander with cutbanks & fallen trees U/S.Riprap on both abutments, U/S embankment faces & on RB. Meander with gravel bar and cutbank U/S. Gravel splay D/S LB. Bridge built without skew, channel approaches at 15 deg.In the process of being bypassed with new grade & box culvert.Riprap on R abutment & U/S embankment face. Contraction scour on R setback. Meander with minor cutbank U/S. Road embankment will funnel flow on U/S LFP.

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[mi2] [ft3/s] [ft3/s]R30 INDIAN CAMP CR RT00J WARREN 1 155 21.4 Q100 8390 8390 REG 12.0 6.0 L 16.4 -- 3.2 -- 17.5R352 BEAR CR RT00Y WARREN 2 185 30.6 Q100 13700 9210 BC 11.0 0.2 L 8.3 3.9 7.7 -- 16.0W113 BR TUQUE CR RT00D WARREN 2 41 1.28 Q100 1530 1530 REG 10.9 9.2 L -- -- -- -- 28.2X212 TRELOAR CR MO094 WARREN 2 110 11.2 Q100 3490 3490 REG 8.4 4.8 L 15.7 -- 3.9 -- 16.9Y981 BIG CR RT0MM WARREN 1 38 0.42 Q100 1290 1290 REG 10.6 5.9 L -- -- -- -- 26.5


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[ft3/s] [ft3/s]16.1 Q500 11200 11200 REG 14.3 10.3 L 19.5 -- 3.2 -- 20.4 19.8 N P N Y Y Y N -- Riprap on both abutments & U/S RB--placed to stop cutbanks. Meandering channel with cutbanks U/S & D/S. Pseudo-setback area on L side--has contraction & local scour. Soil placed on R abutment to fill gully erosion. Bridge built with 10 deg skew.18.5 Qimp 4720 4720 BC 7.5 2.3 C 4.1 0.2 7.6 -- 7.4 11.9 Y N N Y Y Y N -- Concreted riprap on both abutments. Scour hole at R bent. Recent dirtwork on R side. Overflow sections on both FPs--RFP very wide. Cutbank D/S RB.13.4 Q500 2100 2100 REG 13.2 13.0 L -- -- -- -- 31.5 21.4 P Y N Y Y N -- -- Small riprap on U/S L embankment face to deflect flow. Meandering channel U/S & D/S. Potential overflow section on LFP.

7.3 Q500 4610 4610 REG 9.9 6.1 L 18.5 -- 3.9 -- 19.5 12.2 P Y N Y Y N -- -- On MO River FP. Leveed on RB. Contraction scour on L setback. Potential overflow section on LFP. Road on curve, channel curves under bridge. Sign labels this "Kochs Creek"25.9 Q500 1740 1740 REG 12.8 8.9 L -- -- -- -- 30.5 30.2 N Y N Y Y M N -- Built without skew, channel forced to approach at 40 deg by building on U/S RFP. Vertical wall on U/S face of L embankment will channel flow into bridge. Parking lot on U/S LFP. Channelized and contained D/S.


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Comment codes:

Notes


Riprap on both abutments & U/S RB--placed to stop cutbanks. Meandering channel with cutbanks U/S & D/S. Pseudo-setback area on L side--has contraction & local scour. Soil placed on R abutment to fill gully erosion. Bridge built with 10 deg skew.Concreted riprap on both abutments. Scour hole at R bent. Recent dirtwork on R side. Overflow sections on both FPs--RFP very wide. Cutbank D/S RB.Small riprap on U/S L embankment face to deflect flow. Meandering channel U/S & D/S. Potential overflow section on LFP.On MO River FP. Leveed on RB. Contraction scour on L setback. Potential overflow section on LFP. Road on curve, channel curves under bridge. Sign labels this "Kochs Creek"Built without skew, channel forced to approach at 40 deg by building on U/S RFP. Vertical wall on U/S face of L embankment will channel flow into bridge. Parking lot on U/S LFP. Channelized and contained D/S.


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Riprap on both abutments & U/S RB--placed to stop cutbanks. Meandering channel with cutbanks U/S & D/S. Pseudo-setback area on L side--has contraction & local scour. Soil placed on R abutment to fill gully erosion. Bridge built with 10 deg skew.Concreted riprap on both abutments. Scour hole at R bent. Recent dirtwork on R side. Overflow sections on both FPs--RFP very wide. Cutbank D/S RB.Small riprap on U/S L embankment face to deflect flow. Meandering channel U/S & D/S. Potential overflow section on LFP.On MO River FP. Leveed on RB. Contraction scour on L setback. Potential overflow section on LFP. Road on curve, channel curves under bridge. Sign labels this "Kochs Creek"Built without skew, channel forced to approach at 40 deg by building on U/S RFP. Vertical wall on U/S face of L embankment will channel flow into bridge. Parking lot on U/S LFP. Channelized and contained D/S.

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TypeTotal

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T502 GRAND RI RT00B CASS 1 250 386 Q100 30600 30600 REG 24.7 0.0 L -- -- 8.7 -- 18.1Y875 OWENS CR RT00O CASS 1 24 0.82 Q100 128 128 REG 3.0 1.5 L -- -- 8.0 -- 7.0A1333A&B NEW HOPE CR IS035 CLAY 1 176 20.3 Q100 7380 7380 REG 13.4 6.3 L -- -- 7.7 -- 13.3A2505A&B SHOAL CR & RR MO291 CLAY 1 879 58.9 Q100 12900 12900 REG 5.5 0.0 L -- -- 7.5 -- --A3088A&B SHOAL CR MO210 CLAY 1 531 64.0 Q100 13400 13400 REG 8.9 0.0 L -- -- 7.6 3.2 --A3613 CAMP BR RT00C CLAY 1 246 2.06 Q100 2380 2380 REG 4.2 -- -- -- -- -- -- --A3633 OWL CR RT00W CLAY 1 595 14.9 Q100 6260 6260 REG 4.5 -- -- -- -- -- -- --A3785 FISHING RI MO033 CLAY 1 226 39.6 Q100 11100 11100 REG 14.6 32.3 L -- -- 12.2 7.3 20.6A3806 SHOAL CR MO001 CLAY 1 368 9.80 Q100 9250 9250 REG 7.6 -- -- -- -- -- -- --A4559 WILKERSON CR MO092 CLAY 1 151 17.6 Q100 7740 7740 REG 13.2 15.1 L -- -- 8.6 -- 21.0H661 CLEAR CR MO033 CLAY 1 179 30.3 Q100 8810 8810 REG 12.8 6.3 L 6.2 -- 10.9 6.4 29.7K307 FISHING RI & RD MO010 CLAY 1 347 24.3 Q100 9010 9010 REG 7.7 -- -- -- -- -- -- --K648 FISHING RI RT00N CLAY 1 113 0.92 Q100 1640 1640 REG 5.5 0.0 L -- -- 4.3 -- 19.9L501R1 A&B BIG SHOAL CR IS 35 CLAY 1 207 29.2 Q100 9750 9750 REG 13.5 1.7 L -- 21.0 11.6 -- 11.5R269 WILKERSON CR RT0DD CLAY 1 186 20.9 Q100 7920 7920 REG 16.4 0.0 L -- 11.8 6.4 -- 14.2S818 CLEAR CR MO092 CLAY 1 212 71.7 Q100 15000 12600 BC 14.7 0.4 L 4.4 -- 3.9 3.9 21.1W388 OWENS BR RT0KK CLAY 1 28 10.0 Q100 4940 3105 BC 18.5 4.1 L -- -- -- -- 37.6A2305 S GRAND RI RT00K HENRY 1 539 669 Q100 43900 43900 REG 16.6 2.8 L 38.5 33.0 6.4 3.4 20.5A3693 TEBO CR RT0PP HENRY 1 649 210 Q100 22000 22000 REG 9.1 -- -- -- -- -- -- --A3702 BIG RI MO007 HENRY 1 518 528 Q100 30200 30200 REG 15.7 2.6 L 24.9 24.9 8.6 8.6 19.3A3832 BIG CR OF MO007 HENRY 1 440 528 Q100 31300 31300 REG 14.2 -- -- -- -- -- -- --A4165 S GRAND RI MO018 HENRY 1 1048 1260 Q100 60700 60700 REG 12.5 -- -- -- -- -- -- --A4167 TOWN CR MO018 HENRY 1 200 10.1 Q100 4470 4470 REG 7.0 -- -- -- -- -- -- --A488 DEEPWATER CR MO013 HENRY 1 549 240 Q100 19800 19800 REG 9.4 -- -- -- -- -- -- --A489 MENSON CR MO013 HENRY 1 364 240 Q100 19800 19800 REG 12.1 -- -- -- -- -- -- --T816 BRUSHY CR RT00K HENRY 1 77 6.38 Q100 3320 2595 BC 9.0 16.9 L -- -- 3.9 -- 18.3Y852 CATFISH CR RT00E HENRY 1 60 7.19 Q100 3940 3940 REG 13.6 14.7 L -- -- 10.6 -- 38.3A167 SNI-A-BAR CR IS070 JACKSON 1 529 96.2 Q100 15300 15300 REG 8.2 11.6 L 9.9 12.5 10.4 7.6 15.4A2548 SNI-A-BAR CR RT00F JACKSON 1 109 8.08 Q100 4690 4690 REG 10.5 5.1 L -- -- 3.3 -- 14.7A2745 BLUE RI & RD US 71 JACKSON 1 1589 -- Q100 39400 39400 GAGE 11.8 0.0 L -- 22.3 8.6 -- 10.8A3932 L BLUE RI MO 78 JACKSON 1 216 186 Q100 21900 21900 REG 18.2 0.0 L 37.3 38.2 10.1 8.1 14.9A4363 FIRE PRAIRIE CR US024 JACKSON 1 181 44.3 Q100 9460 9460 REG 12.0 18.5 L -- -- 9.9 -- 20.1J526R BLUE RI & RD US040 JACKSON 1 430 257 Q100 26900 26900 REG 15.7 0.0 L 19.8 23.0 18.7 11.0 21.6K3921 BIG BLUE RI US024 JACKSON 1 366 263 Q100 26500 26500 REG 14.3 -- -- -- -- -- -- --K6531 ROCK CR US024 JACKSON 1 110 8.39 Q100 8530 8530 REG 15.9 27.5 L -- -- 17.5 -- 23.8K791 FK BLUE RI US040 JACKSON 1 215 34.4 Q100 9320 9320 REG 11.8 24.9 L -- 26.9 7.1 -- 21.5L1461 SNI-A-BAR CR IS070 JACKSON 1 531 96.1 Q100 15300 15300 REG 8.2 11.6 L 9.9 12.5 10.4 7.6 15.4L589 FIRE PRAIRIE CR US024 JACKSON 1 182 45.0 Q100 9460 9460 REG 12.0 18.5 L -- -- 9.9 -- 20.1L967R1 A&B CREEK & RD IS 70 JACKSON 1 2423 0.70 Q100 37600 37600 REG 20.0 0.0 L -- -- 12.8 10.6 --Y146 TUCKERS BR RT00H JACKSON 1 55 5.22 Q100 3550 2510 BC 10.9 0.7 L -- -- -- -- 21.8Z733 CREEK MO007 JACKSON 1 124 0.12 Q100 439 439 REG 2.3 -- -- -- -- -- -- --A4319 BLACKWATER RI RT00E JOHNSON 1 262 536 Q100 41200 26050 BC 18.3 0.0 L 15.0 -- 9.6 -- 12.7A5844 SCALY BARK CR MO 132 JOHNSON 1 143 3.89 Q100 2810 2810 REG 9.4 7.5 L 12.0 12.3 7.6 -- 8.9G953 BUTCHERS CR US050 JOHNSON 1 106 4.13 Q100 3100 3100 REG 8.3 -- -- -- -- -- -- --N361 CLEAR CR RT0PP JOHNSON 1 163 27.5 Q100 9770 9770 REG 13.6 19.8 L -- -- 8.8 5.8 20.7



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RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes18.1 Q500 40500 40500 REG 27.8 0.0 L -- -- 8.8 -- 21.4 21.4 N N N P ? Y ? ? Completely channelized--fill exists to well above bridge level for several miles both U/S and D/S14.2 Q500 208 208 REG 4.1 2.8 L -- -- 8.1 -- 15.0 21.0 N N N N N N -- -- Very small creek--unsubstantial flows; One pier bent in middle--no apparent scour; cobbling on banks beyond wingwalls17.8 Q500 9890 9890 REG 14.9 9.0 L -- -- 7.7 -- 16.1 19.9 N N P Y N Y Y -- Dual bridge scenario; sharp meander in U/S channel forced LFP width to be taken at an angle into embankment

-- Q500 17200 17200 REG 6.5 0.0 L -- -- 7.5 -- -- -- N N N Y N M ? -- Very high bridge--designed for MO River flow; footing exposure at pier in channel due to lateral migration; photo taken-- Q500 17800 17800 REG 10.5 0.0 L -- -- 7.6 3.2 -- -- N N N Y ? M -- -- Completely channelized--empties into Missouri Riv approx 1/4 mi D/S; bridge width equals width between levees; flagged due to mass wasting on U/S banks--deemed insignificant.-- Q500 3220 3220 REG 5.1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In backwater of Smithville Lake; likely experiences neglible velocities; Extensive riprap along banks-- Q500 8410 8410 REG 5.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In backwater of Smithville Lake; likely experiences neglible velocities

21.9 Q500 14800 14800 REG 16.6 40.2 L -- -- 12.2 7.3 22.4 23.7 N N P Y ? Y ? ? Extensive riprap on abutment aprons; FP has undulating topography--difficult to tell extent of approach flow-- Q500 11900 11900 REG 8.8 -- -- -- -- -- -- -- -- N N Y P N Y ? ? Very small channel compared to bridge opening; substantial riprap--no potential for scour at these discharges; photo taken

17.1 Q500 10300 10300 REG 15.3 19.3 L -- -- 8.6 -- 22.8 20.1 N N P Y N N -- -- No setbacks under bridge; all considered at one channel (therefore, conservative contraction scour)18.6 Q500 11800 11800 REG 14.5 8.2 L 9.8 -- 11.0 6.4 32.0 23.5 N N N Y Y N -- -- Q500 depth is at bankfull on right side; therefore, flow on right setback is approx 0 ft

-- Q500 12000 12000 REG 9.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Bridge in City (Excelsior Springs); well-maintained setting with poured concrete abutment faces; runoff erosion present, but no indications of scour12.0 Q500 2230 2230 REG 6.6 0.0 L -- -- 4.3 -- 23.5 20.0 N N N N N M N -- Sparse riprap & low flow; small bridge; flow does not get onto FP at either discharge20.6 Q500 13000 13000 REG 15.4 5.2 L -- 26.0 11.6 -- 15.1 22.3 N N N N N Y N -- Small amount of riprap on abutments; riprap at main channel bents14.2 Q500 10600 10600 REG 18.5 1.3 L -- 17.8 6.5 -- 18.2 18.2 N N N Y Y M ? -- None10.7 Qimp 10200 10200 BC 13.0 3.3 L 2.6 -- 3.9 3.9 19.6 3.5 Y Y N Y Y N -- -- None41.0 Qimp 1270 1270 BC 10.8 1.2 L -- -- -- -- 6.3 21.3 Y N N Y N N -- -- None20.8 Q500 57600 57600 REG 18.1 4.1 L 48.4 42.0 6.5 3.4 21.8 22.2 N P P Y N Y ? -- Concreted riprap on L and R abutment faces; Concrete debris and riprap along both banks as well.

-- Q500 29300 29300 REG 10.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In backwater of Truman Reservoir; likely experiences neglible velocities20.2 Q500 40400 40400 REG 18.1 6.0 L 31.2 31.2 8.7 8.7 21.4 22.3 N N N Y N Y ? -- Both abutments completely riprapped; small indication of scour at pier on R setback; stream appears channelized

-- Q500 41800 41800 REG 16.9 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- No defined channel--appears to be expansion area for Truman Reservoir; Piers and abutments completely riprapped; Central piers apparently underwater at Level 1-- Q500 79500 79500 REG 14.7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In backwater of Truman Reservoir--likely experiences neglible velocities; Heavily riprapped at piers and abutments; USGS gaging station 06921760-- Q500 6080 6080 REG 8.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Heavily riprapped at piers and abutments; Level 1 indicates small scour hole near bridge-- Q500 26700 26700 REG 11.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In backwater of Truman Reservoir--likely experiences neglible velocities-- Q500 26700 26700 REG 14.4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In backwater of Truman Reservoir--likely experiences neglible velocities

14.9 Qimp 1870 1870 BC 7.4 17.4 L -- -- 3.9 -- 15.2 11.9 Y Y P Y N N -- -- None37.7 Q500 5350 5350 REG 16.3 17.9 L -- -- 10.6 -- 42.7 42.1 N P N P N N -- -- Some cobbling on left bank--insignificant16.1 Q500 19800 19800 REG 9.6 14.2 L 12.7 14.9 10.4 7.6 18.1 18.8 N P N P Y Y Y -- Concrete pads on abutment faces and on U/S side of embankment; Dual bridge situation w/ L1461; Small riprap in channel U/S of L main channel pier; steep, moderately-vegetated banks, w/ meander bend D/S11.4 Q500 6310 6310 REG 12.5 12.9 L -- -- 3.4 -- 18.6 15.2 N N Y P N N -- -- No riprap present; old timber piles present on left bank; Left abutment appears to be substantially undercut19.3 Q500 57800 57800 GAGE 13.5 0.0 L -- 26.3 8.6 -- 14.2 20.9 N N N Y Y Y Y -- Structure spans roadways and channel; Other structures exists U/S & D/S, which will keep flow confined to channel; Substantial bank erosion on LB; Left setback is high elevation, flow contained within subchannel13.7 Q500 29100 29100 REG 21.4 0.0 L 46.6 48.1 10.2 8.2 20.1 19.5 N P N N N Y Y -- Riprap along banks under bridge and in U/S channel16.3 Q500 12800 12800 REG 14.4 24.0 L -- -- 9.9 -- 22.3 20.0 N Y N Y N N -- -- Pressure flow at Q500; Dual bridge (L589) scenario12.3 Q500 35500 35500 REG 17.9 0.0 L 25.6 29.3 18.8 11.1 23.5 16.5 N N N P Y Y N -- Concreted riprap on both abutment faces. Highly channelized--in urban setting but basin not completely urban. R setback & FP area limited by salvage yard U/S. Staff gage near bridge indicates flow could get much deeper than from these Q's.

-- Q500 35100 35100 REG 17.0 -- -- -- -- -- -- -- -- N N N N N Y Y Y Bridge mis-numbered--K3923 over concrete-lined channel w/ little to no scour potential (14.00 in Level 1 DB)23.5 Q500 12200 12200 REG 19.7 35.1 L -- -- 17.5 -- 27.2 26.9 N Y Y P Y Y N -- Riprap and concreted cobbles on abutment faces--being undermined; "abutments" are supported by piers by means of arch; Pressure flow for both discharges but no road overtopping; Photos taken19.6 Q500 12500 12500 REG 13.5 28.8 L -- 33.4 7.1 -- 23.0 21.1 N N N P ? Y ? -- Cobbling exists on both abutments; Right FP is a park w/ mowed grass, parking lot, pool, etc.16.1 Q500 20400 20400 REG 9.8 14.4 L 13.1 15.1 10.4 7.6 18.4 19.1 N P N P Y Y Y -- Concrete pads on abutment faces and on U/S side of embankment; Dual bridge situation w/ A167; Small riprap in channel U/S of L main channel pier; steep, moderately-vegetated banks, w/ meander bend D/S16.3 Q500 12700 12700 REG 14.3 23.7 L -- -- 9.9 -- 22.2 20.0 N Y N Y N N -- -- Pressure flow at Q500; Dual bridge (A4363) scenario

-- Q500 50600 50600 REG 23.9 0.0 L -- -- 12.9 10.6 -- -- N N N N N Y Y -- Large structure spanning road/railways and channel; Riprap on all banks and in channel; No contraction potential--will use D/S (J-526) Level 2 analysis to determine velocities for pier scour23.1 Qimp 1470 1470 BC 7.9 0.0 L -- -- -- -- -- 3.5 Y P N P N N -- -- Small span; Significant debris on U/S face; No piers

-- Q500 615 615 REG 2.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Could not find bridge; may have been replaced with a culvert17.3 Qimp 10900 10900 BC 11.7 0.0 L -- -- 9.5 -- -- -- Y N N Y D Y -- -- Mild slough and drainage on U/S face of bridge & road conveys flow to low point of road; however, U/S FP higher than low point of road; therefore LOB and ROB depths = 018.7 Q500 3840 3840 REG 11.0 9.0 L 15.5 15.7 7.6 -- 12.9 20.4 P Y N N N Y Y -- Riprap at both abutments--fully protected.

-- Q500 4210 4210 REG 10.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Level 1 indicated footing exposure; however, site heavily riprapped and concreted; dual bridge scenario17.8 Q500 13000 13000 REG 16.0 25.5 L -- -- 8.8 5.8 22.8 20.7 N N P Y N M ? -- None




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]


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NotesCompletely channelized--fill exists to well above bridge level for several miles both U/S and D/SVery small creek--unsubstantial flows; One pier bent in middle--no apparent scour; cobbling on banks beyond wingwallsDual bridge scenario; sharp meander in U/S channel forced LFP width to be taken at an angle into embankmentVery high bridge--designed for MO River flow; footing exposure at pier in channel due to lateral migration; photo takenCompletely channelized--empties into Missouri Riv approx 1/4 mi D/S; bridge width equals width between levees; flagged due to mass wasting on U/S banks--deemed insignificant.In backwater of Smithville Lake; likely experiences neglible velocities; Extensive riprap along banksIn backwater of Smithville Lake; likely experiences neglible velocitiesExtensive riprap on abutment aprons; FP has undulating topography--difficult to tell extent of approach flowVery small channel compared to bridge opening; substantial riprap--no potential for scour at these discharges; photo takenNo setbacks under bridge; all considered at one channel (therefore, conservative contraction scour)Q500 depth is at bankfull on right side; therefore, flow on right setback is approx 0 ftBridge in City (Excelsior Springs); well-maintained setting with poured concrete abutment faces; runoff erosion present, but no indications of scourSparse riprap & low flow; small bridge; flow does not get onto FP at either dischargeSmall amount of riprap on abutments; riprap at main channel bentsNoneNoneNoneConcreted riprap on L and R abutment faces; Concrete debris and riprap along both banks as well.In backwater of Truman Reservoir; likely experiences neglible velocitiesBoth abutments completely riprapped; small indication of scour at pier on R setback; stream appears channelizedNo defined channel--appears to be expansion area for Truman Reservoir; Piers and abutments completely riprapped; Central piers apparently underwater at Level 1In backwater of Truman Reservoir--likely experiences neglible velocities; Heavily riprapped at piers and abutments; USGS gaging station 06921760Heavily riprapped at piers and abutments; Level 1 indicates small scour hole near bridgeIn backwater of Truman Reservoir--likely experiences neglible velocitiesIn backwater of Truman Reservoir--likely experiences neglible velocitiesNoneSome cobbling on left bank--insignificantConcrete pads on abutment faces and on U/S side of embankment; Dual bridge situation w/ L1461; Small riprap in channel U/S of L main channel pier; steep, moderately-vegetated banks, w/ meander bend D/SNo riprap present; old timber piles present on left bank; Left abutment appears to be substantially undercutStructure spans roadways and channel; Other structures exists U/S & D/S, which will keep flow confined to channel; Substantial bank erosion on LB; Left setback is high elevation, flow contained within subchannelRiprap along banks under bridge and in U/S channelPressure flow at Q500; Dual bridge (L589) scenarioConcreted riprap on both abutment faces. Highly channelized--in urban setting but basin not completely urban. R setback & FP area limited by salvage yard U/S. Staff gage near bridge indicates flow could get much deeper than from these Q's.Bridge mis-numbered--K3923 over concrete-lined channel w/ little to no scour potential (14.00 in Level 1 DB)Riprap and concreted cobbles on abutment faces--being undermined; "abutments" are supported by piers by means of arch; Pressure flow for both discharges but no road overtopping; Photos takenCobbling exists on both abutments; Right FP is a park w/ mowed grass, parking lot, pool, etc.Concrete pads on abutment faces and on U/S side of embankment; Dual bridge situation w/ A167; Small riprap in channel U/S of L main channel pier; steep, moderately-vegetated banks, w/ meander bend D/SPressure flow at Q500; Dual bridge (A4363) scenarioLarge structure spanning road/railways and channel; Riprap on all banks and in channel; No contraction potential--will use D/S (J-526) Level 2 analysis to determine velocities for pier scourSmall span; Significant debris on U/S face; No piersCould not find bridge; may have been replaced with a culvertMild slough and drainage on U/S face of bridge & road conveys flow to low point of road; however, U/S FP higher than low point of road; therefore LOB and ROB depths = 0Riprap at both abutments--fully protected.Level 1 indicated footing exposure; however, site heavily riprapped and concreted; dual bridge scenarioNone



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Completely channelized--fill exists to well above bridge level for several miles both U/S and D/SVery small creek--unsubstantial flows; One pier bent in middle--no apparent scour; cobbling on banks beyond wingwallsDual bridge scenario; sharp meander in U/S channel forced LFP width to be taken at an angle into embankmentVery high bridge--designed for MO River flow; footing exposure at pier in channel due to lateral migration; photo takenCompletely channelized--empties into Missouri Riv approx 1/4 mi D/S; bridge width equals width between levees; flagged due to mass wasting on U/S banks--deemed insignificant.In backwater of Smithville Lake; likely experiences neglible velocities; Extensive riprap along banksIn backwater of Smithville Lake; likely experiences neglible velocitiesExtensive riprap on abutment aprons; FP has undulating topography--difficult to tell extent of approach flowVery small channel compared to bridge opening; substantial riprap--no potential for scour at these discharges; photo takenNo setbacks under bridge; all considered at one channel (therefore, conservative contraction scour)Q500 depth is at bankfull on right side; therefore, flow on right setback is approx 0 ftBridge in City (Excelsior Springs); well-maintained setting with poured concrete abutment faces; runoff erosion present, but no indications of scourSparse riprap & low flow; small bridge; flow does not get onto FP at either dischargeSmall amount of riprap on abutments; riprap at main channel bentsNoneNoneNoneConcreted riprap on L and R abutment faces; Concrete debris and riprap along both banks as well.In backwater of Truman Reservoir; likely experiences neglible velocitiesBoth abutments completely riprapped; small indication of scour at pier on R setback; stream appears channelizedNo defined channel--appears to be expansion area for Truman Reservoir; Piers and abutments completely riprapped; Central piers apparently underwater at Level 1In backwater of Truman Reservoir--likely experiences neglible velocities; Heavily riprapped at piers and abutments; USGS gaging station 06921760Heavily riprapped at piers and abutments; Level 1 indicates small scour hole near bridgeIn backwater of Truman Reservoir--likely experiences neglible velocitiesIn backwater of Truman Reservoir--likely experiences neglible velocitiesNoneSome cobbling on left bank--insignificantConcrete pads on abutment faces and on U/S side of embankment; Dual bridge situation w/ L1461; Small riprap in channel U/S of L main channel pier; steep, moderately-vegetated banks, w/ meander bend D/SNo riprap present; old timber piles present on left bank; Left abutment appears to be substantially undercutStructure spans roadways and channel; Other structures exists U/S & D/S, which will keep flow confined to channel; Substantial bank erosion on LB; Left setback is high elevation, flow contained within subchannelRiprap along banks under bridge and in U/S channelPressure flow at Q500; Dual bridge (L589) scenarioConcreted riprap on both abutment faces. Highly channelized--in urban setting but basin not completely urban. R setback & FP area limited by salvage yard U/S. Staff gage near bridge indicates flow could get much deeper than from these Q's.Bridge mis-numbered--K3923 over concrete-lined channel w/ little to no scour potential (14.00 in Level 1 DB)Riprap and concreted cobbles on abutment faces--being undermined; "abutments" are supported by piers by means of arch; Pressure flow for both discharges but no road overtopping; Photos takenCobbling exists on both abutments; Right FP is a park w/ mowed grass, parking lot, pool, etc.Concrete pads on abutment faces and on U/S side of embankment; Dual bridge situation w/ A167; Small riprap in channel U/S of L main channel pier; steep, moderately-vegetated banks, w/ meander bend D/SPressure flow at Q500; Dual bridge (A4363) scenarioLarge structure spanning road/railways and channel; Riprap on all banks and in channel; No contraction potential--will use D/S (J-526) Level 2 analysis to determine velocities for pier scourSmall span; Significant debris on U/S face; No piersCould not find bridge; may have been replaced with a culvertMild slough and drainage on U/S face of bridge & road conveys flow to low point of road; however, U/S FP higher than low point of road; therefore LOB and ROB depths = 0Riprap at both abutments--fully protected.Level 1 indicated footing exposure; however, site heavily riprapped and concreted; dual bridge scenarioNone

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MethodMain channel

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Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]P807 POST OAK CR RT00F JOHNSON 1 143 29.7 Q100 9430 9430 REG 14.2 13.5 L -- -- 3.4 -- 14.9A2850 TABO CR US024 LAFAYETTE 1 239 128 Q100 16900 16900 REG 16.8 28.0 L -- -- 8.7 3.9 30.0N708 DAVIS CR RT00U LAFAYETTE 1 108 14.4 Q100 5580 5580 REG 11.9 10.4 L -- -- 6.4 -- 12.1N827 OWL CR RT0WW LAFAYETTE 1 90 5.87 Q100 4260 4260 REG 12.2 2.7 L -- -- 4.1 -- 13.6A1744A&B TODD CR IS029 PLATTE 1 130 4.20 Q100 3350 3350 REG 10.1 0.0 L -- -- 9.9 -- 11.2A198R1 PLATTE RI OF IS029 PLATTE 1 402 2420 Q100 91200 13130 EST 8.9 0.0 L -- -- 7.6 -- 20.5A199R1 PLATTE RI IS029 PLATTE 1 704 2420 Q100 91200 78050 EST 18.7 8.6 L 21.3 17.9 19.2 9.3 22.8A2030 LINE CR OR009 PLATTE 1 314 21.4 Q100 8850 8850 REG 11.6 4.9 L 11.4 -- 8.6 -- 10.7A3430 BRUSH CR MO152 PLATTE 1 381 9.90 Q100 5510 5510 REG 5.4 -- -- -- -- -- -- --A4256 OWL CR RT00U PLATTE 1 71 3.27 Q100 2980 2155 BC 8.7 0.0 L -- -- 3.3 -- 6.3A4291 LINE CR US069 PLATTE 1 167 19.4 Q100 8640 8640 REG 15.3 1.5 L -- -- 7.7 3.3 12.1F579 PLATTE RI MO092 PLATTE 1 429 2410 Q100 90100 90100 REG 27.3 -- -- -- -- -- -- --H917 BEE CR RT00Z PLATTE 1 158 37.2 Q100 9890 9890 REG 13.6 0.0 L -- -- 7.7 -- 12.9K266R PLATTE RI MO045 PLATTE 1 548 2460 Q100 88200 88200 REG 23.7 -- -- -- -- 11.8 -- --K480R LINE CR US069 PLATTE 1 128 15.2 Q100 7480 7480 REG 14.0 2.1 L -- -- 10.5 -- 13.0K703 SUGAR CR MO045 PLATTE 1 165 34.9 Q100 9650 9650 REG 16.8 1.7 L -- -- 7.7 3.9 14.4L354R2 PLATTE RI IS029 PLATTE 1 704 2420 Q100 91200 78050 EST 18.7 8.6 L 21.3 17.9 19.2 9.3 22.8L380R2 PLATTE RI OF IS029 PLATTE 1 402 2420 Q100 91200 13130 EST 8.9 0.0 L -- -- 7.6 -- 20.5L689 LINE CR IS029 PLATTE 1 196 15.2 Q100 7880 7880 REG 10.0 -- -- -- -- -- -- --S25 PLATTE RI RT00Z PLATTE 1 838 2020 Q100 82400 82400 REG 17.3 3.7 L -- 33.8 11.7 6.5 22.8Y344 E FK LINE CR RT0AA PLATTE 1 22 4.60 Q100 3820 3820 REG 24.3 -- -- -- -- -- -- --A2688 CROOKED RI RT00J RAY 1 333 348 Q100 29300 29300 REG 16.1 -- -- -- -- -- -- --A3168 KEENEY CR MO210 RAY 1 142 6.47 Q100 4240 4240 REG 11.3 0.0 L -- -- 3.9 -- 11.8G949 CROOKED RI MO010 RAY 1 100 9.36 Q100 5700 5700 REG 13.2 3.7 L -- -- 27.1 -- 38.3J633 M CROOKED RI MO013 RAY 1 247 160 Q100 18400 18400 REG 16.6 12.1 L 23.5 -- 7.7 -- 19.2J7442 BRANCH MO013 RAY 1 43 0.66 Q100 1560 1560 REG 9.4 40.3 L -- -- -- -- 20.6N298 S MUD CR RT00E RAY 1 105 10.8 Q100 5170 4065 BC 10.2 9.7 L -- -- 4.2 -- 16.6N839 MCDONALD BR RT0FF RAY 1 90 5.80 Q100 4200 3725 BC 10.2 14.6 L -- -- 3.9 -- 19.7S487 CRABAPPLE CR RT00A RAY 1 66 4.02 Q100 3380 3380 REG 11.7 14.9 L -- -- 5.0 -- 18.3S699 ROLLINS CR RT00T RAY 1 132 10.2 Q100 5980 5980 REG 12.6 3.1 L -- -- 3.9 -- 12.4S704 WILLOW CR MO210 RAY 1 77 7.83 Q100 4510 4510 REG 12.7 10.9 L -- -- 3.9 -- 15.4X618 ROCKY FK CR RT00C RAY 1 175 14.2 Q100 7140 7140 REG 11.1 2.9 L 16.1 -- 3.9 -- 17.3


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[ft3/s] [ft3/s]16.1 Q500 12600 12600 REG 16.2 17.3 L -- -- 3.4 -- 18.6 19.5 N P P Y N M ? -- Riprap extensive on LB and abutment; not present on RB or abutment14.4 Q500 22500 22500 REG 19.7 30.9 L -- -- 8.7 3.9 32.1 19.5 N N N P N M ? -- RB completely covered with cemented riprap; L abut covered with cobbles down to top of LB; Deep channel; R abut not protected, but a steep bluff w/ no flow15.2 Q500 7550 7550 REG 14.3 17.8 L -- -- 6.4 -- 16.5 19.5 N N N P N Y Y -- Riprap and poured concrete on RB--shows signs of mild undercutting; Sparse riprap on LB--marginal protection13.8 Q500 5720 5720 REG 13.7 10.3 L -- -- 4.1 -- 16.5 16.7 N N P Y N Y N -- Some cobbling under bridge; Substantial riprap on abutment faces11.2 Q500 4520 4520 REG 12.4 5.4 L -- -- 10.0 -- 15.4 15.4 N N N P N N -- -- Dual bridge scenario--examined U/S bridge; no setbacks; Q100 & Q500 close to bankfull20.5 Q500 118000 17020 EST 10.7 0.0 L -- -- 7.6 -- 22.1 22.1 N N N Y Y M -- -- Dual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridges23.8 Q500 118000 101220 EST 22.2 11.0 L 25.4 21.9 19.3 9.3 25.8 26.9 N N N Y Y M -- -- Dual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridges12.5 Q500 11700 11700 REG 13.0 7.4 L 16.3 -- 8.6 -- 13.5 15.1 N N N Y N N -- -- No riprap at abutments. LFP built up for warehouse. Urban setting.

-- Q500 7380 7380 REG 6.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- New bridge; bankfull conditions approx 1/4 height to low steel; no sign of scour; outcrop present on RB6.3 Qimp 1330 1330 BC 6.5 0.0 L -- -- 3.3 -- -- -- Y Y N Y N N -- -- Road overtopping at Q100, almost bridge overtopping at Q100; road is incised into floodplain, so although road is overtopped, no flow on FPs

13.2 Q500 11400 11400 REG 17.5 9.9 L -- -- 7.7 3.3 16.3 17.4 N N P Y N N -- -- Severe erosion on L abutment down to bank. Drainage outlet just U/S leaving large gully into stream. Cobbles line main channel. Urban setting. RFP built up car lot; LFP is parking lot & old residential.-- Q500 117000 117000 REG 32.0 -- -- -- -- -- -- -- -- N N Y Y N Y ? -- Large bridge opening--tall and wide; extensive riprapping on both abutments and in channel; photo taken at site

12.9 Q500 13200 13200 REG 16.2 6.2 L -- -- 7.7 -- 17.7 17.7 N Y N Y Y M -- -- Q100 under bankfull; Q500 overtops banks onto RFP-- Q500 115000 115000 REG 27.9 -- -- -- -- 11.8 -- -- -- N N N N N M N -- Levees exist on both U/S & D/S FPs. Q500 will not overtop levees. No contraction scour potential, no abutment scour.

13.0 Q500 9920 9920 REG 16.3 2.4 L -- -- 10.5 -- 17.5 17.5 N N Y Y N M ? -- L abutment is a slab of concrete; No significant FPs; substantial cobbles in channel14.4 Q500 12900 12900 REG 19.0 1.9 L -- -- 7.7 3.9 18.6 18.6 N N N Y N N -- -- No FP calculations made; levee on both banks confines flow throughout MO River FP; Q500 MAY overtop levee several bridge lengths upstream23.8 Q500 118000 101220 EST 22.2 11.0 L 25.4 21.9 19.3 9.3 25.8 26.9 N N N Y Y M -- -- Dual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridges20.5 Q500 118000 17020 EST 10.7 0.0 L -- -- 7.6 -- 22.1 22.1 N N N Y Y M -- -- Dual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridges

-- Q500 10400 10400 REG 11.9 -- -- -- -- -- -- -- -- N N P N N Y Y -- Lower abutment faces/banks heavily riprapped with large riprap up to Q500 depth. 2.5 ft-wide piers widely-spaced. Riprap/cobbles in channel.26.2 Q500 107000 107000 REG 20.2 6.1 L -- 41.0 11.7 6.5 25.4 28.8 P N N Y N N -- -- Q500 extends abut to abut; however, levee confines flow to main channel and R setback; FP widths taken using angled lines from approach

-- Q500 5120 5120 REG 29.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Old concrete tunnel bridge w/ bedrock channel bed; abutment edges are exposed but not undercut; Level 1 potential scour 42.5 due to U/S and D/S banks-- Q500 38800 38800 REG 19.1 -- -- -- -- -- -- -- -- N N N N N N -- -- In MO River FP--currently in backwater; unable to see pier foundations. Levees on both banks will not be overtopped by Q500; narrow down well U/S--no contraction at bridge. Flagged due to unknown pier scour--piers designed to resist scour.

11.8 Q500 5710 5710 REG 13.5 0.0 L -- -- 3.9 -- 15.9 15.9 N N N P N N -- -- Rotational slump in R abut; substantial runoff erosion on L abut23.0 Q500 7590 7590 REG 15.6 5.3 L -- -- 27.2 -- 42.3 31.6 N N Y P N Y Y -- Extensive concreted riprap under bridge; armored channel--some outcrops16.0 Q500 24700 24700 REG 19.2 19.2 L 30.3 -- 7.7 -- 21.6 20.1 P Y P Y D M ? -- Cobbling on abutment faces; broken cobbling on bank under bridge; Q500 in pressure flow20.6 Q500 2100 2100 REG 11.3 48.1 L -- -- -- -- 22.3 22.2 P Y N N N N -- -- Small bridge; flows will be substantially splayed out of creek during flood events17.5 Qimp 2960 2960 BC 8.4 9.5 L -- -- 4.2 -- 13.3 14.2 P Y N Y Y N -- -- Deeply incised channel; Pier scour observed on L bent; deeply incised highway drains18.6 Qimp 3250 3250 BC 9.4 14.8 L -- -- 3.9 -- 18.6 17.0 Y Y N Y Y N -- -- Q100 already in pressure flow; Abutments are scoured out underneath slightly16.4 Q500 4560 4560 REG 14.0 21.8 L -- -- 5.0 -- 20.9 20.0 N P N Y ? Y ? -- "Footing" exposure on steel H-pile--probably a tie to timber pile below; Cobbles and boulders in channel; Fence across U/S channel may trap debris15.9 Q500 7970 7970 REG 14.7 5.2 L -- -- 3.9 -- 16.3 19.5 N N N Y N N -- -- Slight slump on L abut; levee 133 ft from edge of water at approach12.4 Q500 6080 6080 REG 15.2 21.2 L -- -- 3.9 -- 19.7 17.2 N N N Y ? M ? -- Poured concrete on abutment faces; Substantial amounts of debris in U/S channel just U/S of bridge11.7 Q500 9480 9480 REG 13.1 4.5 L 19.1 -- 3.9 -- 20.1 15.4 N N N Y N M ? -- Q500 flow just gets out of bank on ROB--significant slope on ROB; Partial riprap on L abut


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Comment codes:

Notes


Riprap extensive on LB and abutment; not present on RB or abutmentRB completely covered with cemented riprap; L abut covered with cobbles down to top of LB; Deep channel; R abut not protected, but a steep bluff w/ no flowRiprap and poured concrete on RB--shows signs of mild undercutting; Sparse riprap on LB--marginal protectionSome cobbling under bridge; Substantial riprap on abutment facesDual bridge scenario--examined U/S bridge; no setbacks; Q100 & Q500 close to bankfullDual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridgesDual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridgesNo riprap at abutments. LFP built up for warehouse. Urban setting.New bridge; bankfull conditions approx 1/4 height to low steel; no sign of scour; outcrop present on RBRoad overtopping at Q100, almost bridge overtopping at Q100; road is incised into floodplain, so although road is overtopped, no flow on FPsSevere erosion on L abutment down to bank. Drainage outlet just U/S leaving large gully into stream. Cobbles line main channel. Urban setting. RFP built up car lot; LFP is parking lot & old residential.Large bridge opening--tall and wide; extensive riprapping on both abutments and in channel; photo taken at siteQ100 under bankfull; Q500 overtops banks onto RFPLevees exist on both U/S & D/S FPs. Q500 will not overtop levees. No contraction scour potential, no abutment scour.L abutment is a slab of concrete; No significant FPs; substantial cobbles in channelNo FP calculations made; levee on both banks confines flow throughout MO River FP; Q500 MAY overtop levee several bridge lengths upstreamDual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridgesDual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridgesLower abutment faces/banks heavily riprapped with large riprap up to Q500 depth. 2.5 ft-wide piers widely-spaced. Riprap/cobbles in channel.Q500 extends abut to abut; however, levee confines flow to main channel and R setback; FP widths taken using angled lines from approachOld concrete tunnel bridge w/ bedrock channel bed; abutment edges are exposed but not undercut; Level 1 potential scour 42.5 due to U/S and D/S banksIn MO River FP--currently in backwater; unable to see pier foundations. Levees on both banks will not be overtopped by Q500; narrow down well U/S--no contraction at bridge. Flagged due to unknown pier scour--piers designed to resist scour.Rotational slump in R abut; substantial runoff erosion on L abutExtensive concreted riprap under bridge; armored channel--some outcropsCobbling on abutment faces; broken cobbling on bank under bridge; Q500 in pressure flowSmall bridge; flows will be substantially splayed out of creek during flood eventsDeeply incised channel; Pier scour observed on L bent; deeply incised highway drainsQ100 already in pressure flow; Abutments are scoured out underneath slightly"Footing" exposure on steel H-pile--probably a tie to timber pile below; Cobbles and boulders in channel; Fence across U/S channel may trap debrisSlight slump on L abut; levee 133 ft from edge of water at approachPoured concrete on abutment faces; Substantial amounts of debris in U/S channel just U/S of bridgeQ500 flow just gets out of bank on ROB--significant slope on ROB; Partial riprap on L abut


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AT10


document.xls

District 04

Riprap extensive on LB and abutment; not present on RB or abutmentRB completely covered with cemented riprap; L abut covered with cobbles down to top of LB; Deep channel; R abut not protected, but a steep bluff w/ no flowRiprap and poured concrete on RB--shows signs of mild undercutting; Sparse riprap on LB--marginal protectionSome cobbling under bridge; Substantial riprap on abutment facesDual bridge scenario--examined U/S bridge; no setbacks; Q100 & Q500 close to bankfullDual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridgesDual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridgesNo riprap at abutments. LFP built up for warehouse. Urban setting.New bridge; bankfull conditions approx 1/4 height to low steel; no sign of scour; outcrop present on RBRoad overtopping at Q100, almost bridge overtopping at Q100; road is incised into floodplain, so although road is overtopped, no flow on FPsSevere erosion on L abutment down to bank. Drainage outlet just U/S leaving large gully into stream. Cobbles line main channel. Urban setting. RFP built up car lot; LFP is parking lot & old residential.Large bridge opening--tall and wide; extensive riprapping on both abutments and in channel; photo taken at siteQ100 under bankfull; Q500 overtops banks onto RFPLevees exist on both U/S & D/S FPs. Q500 will not overtop levees. No contraction scour potential, no abutment scour.L abutment is a slab of concrete; No significant FPs; substantial cobbles in channelNo FP calculations made; levee on both banks confines flow throughout MO River FP; Q500 MAY overtop levee several bridge lengths upstreamDual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridgesDual bridge (A199R1 & L354R2 ) and dual relief bridge (A198R & L380R2) scenario; FP widths taken as 1/2 distance between bridgesLower abutment faces/banks heavily riprapped with large riprap up to Q500 depth. 2.5 ft-wide piers widely-spaced. Riprap/cobbles in channel.Q500 extends abut to abut; however, levee confines flow to main channel and R setback; FP widths taken using angled lines from approachOld concrete tunnel bridge w/ bedrock channel bed; abutment edges are exposed but not undercut; Level 1 potential scour 42.5 due to U/S and D/S banksIn MO River FP--currently in backwater; unable to see pier foundations. Levees on both banks will not be overtopped by Q500; narrow down well U/S--no contraction at bridge. Flagged due to unknown pier scour--piers designed to resist scour.Rotational slump in R abut; substantial runoff erosion on L abutExtensive concreted riprap under bridge; armored channel--some outcropsCobbling on abutment faces; broken cobbling on bank under bridge; Q500 in pressure flowSmall bridge; flows will be substantially splayed out of creek during flood eventsDeeply incised channel; Pier scour observed on L bent; deeply incised highway drainsQ100 already in pressure flow; Abutments are scoured out underneath slightly"Footing" exposure on steel H-pile--probably a tie to timber pile below; Cobbles and boulders in channel; Fence across U/S channel may trap debrisSlight slump on L abut; levee 133 ft from edge of water at approachPoured concrete on abutment faces; Substantial amounts of debris in U/S channel just U/S of bridgeQ500 flow just gets out of bank on ROB--significant slope on ROB; Partial riprap on L abut

BN BO123456789

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document.xls

District 05



TypeTotal

MethodMain channel

OverbankLeft



H07732 CORMAN CR US 65 BENTON 2 42 6.37 Q100 3980 3980 REG 18.3 18.2 L -- -- -- -- --N614 BIG BUFFALO CR & RR RT WW BENTON 2 25 8.03 Q100 6110 3145 BC 20.2 15.9 L -- -- -- -- --P86 DEER CR & RR RT V BENTON 2 50 60.9 Q100 17600 9134 BC 24.1 0.0 L -- -- -- -- --Y401 INDIAN CR RT00B BENTON 2 61 12.0 Q100 7040 4670 BC 15.1 3.0 L -- -- 20.8 -- 36.4A1803 GANS CR M0163 BOONE 2 136 12.7 Q100 5520 5520 REG 10.1 5.6 L 3.8 -- 7.7 -- 13.0A1899 HINKSON CR MO 163 BOONE 2 273 70.2 Q100 15900 10870 BC 10.7 2.1 L -- 23.2 10.5 10.5 5.4A2189 GANS CR US063 BOONE 2 133 8.58 Q100 3700 3700 REG 10.0 18.7 L -- -- 7.7 -- 16.9A3124 GANS CR US063 BOONE 2 130 8.93 Q100 3700 3700 REG 10.0 18.7 L -- -- 7.7 -- 16.9A3439 GRINDSTONE CR US063 BOONE 2 253 12.4 Q100 6180 6180 REG 7.2 -- -- -- -- -- -- --A4546 ROCKY FK CR RT0VV BOONE 2 266 26.1 Q100 9340 9340 REG 9.6 9.7 L 6.2 11.9 7.7 3.2 13.4A4612 CEDAR CR RT0WW BOONE 2 197 51.6 Q100 8710 8710 REG 11.3 0.0 L -- 7.5 7.7 -- 9.3A4802 HINKSON CR MO163 BOONE 2 273 69.6 Q100 15700 15700 REG 12.0 -- -- -- -- -- -- --A557 PERCHE CR RT00E BOONE 2 214 186 Q100 28400 20050 BC 16.1 1.6 L 14.4 9.5 7.8 -- 20.8A558 ROCKY FK CR RT00E BOONE 2 164 48.8 Q100 12400 9150 BC 12.1 5.8 L -- 11.2 7.7 -- 19.9A859 HINKSON CR RT0WW BOONE 2 229 44.5 Q100 11100 11100 REG 14.8 -- -- -- -- -- -- --G519R1 PERCHE CR IS070 BOONE 2 698 276 Q100 32000 32000 REG 10.5 -- -- -- -- -- -- --N38 CEDAR CR RT00Y BOONE 2 214 141 Q100 22900 16750 BC 15.0 6.1 L -- 6.0 10.6 -- 14.6P384 COON CR RT00F BOONE 1 108 7.06 Q100 4090 4090 REG 9.9 9.1 L -- -- 6.4 -- 14.6P735 SILVER FK CR RT00V BOONE 1 119 36.9 Q100 8350 5920 BC 11.8 2.6 L -- -- 3.9 -- 16.8W559 BONNE FEMME CR MO163 BOONE 2 34 7.08 Q100 3370 2795 BC 14.9 7.2 L -- -- -- -- 21.3A1833 FOUR MILE BR RT00E CALLAWAY 1 89 6.62 Q100 3060 3060 REG 10.2 17.1 L -- -- 3.2 -- 14.6A1959 CROWS FK RT00O CALLAWAY 2 274 66.3 Q100 16900 16900 REG 14.5 6.0 L 26.2 -- 10.6 -- 21.1A1960 AUXVASSE CR RT00O CALLAWAY 2 316 169 Q100 27800 20500 BC 16.7 10.4 L -- -- 10.7 -- 6.5A2361 AUXVASSE CR RT0BB CALLAWAY 2 173 56.5 Q100 15000 15000 REG 15.4 -- -- -- -- -- -- --A2549 BACHELOR CR RT0EE CALLAWAY 2 117 13.8 Q100 14300 11425 BC 16.7 18.9 L -- -- 7.8 -- 24.6A3532 CEDAR CR US063 CALLAWAY 2 283 213 Q100 28100 28100 REG 17.9 13.2 L -- -- 7.8 -- 12.2A3534A&B TURKEY CR US063 CALLAWAY 2 197 6.87 Q100 4170 4170 REG 8.4 5.5 L 9.9 9.9 7.6 -- 13.7A4810 AUXVASSE CR IS070 CALLAWAY 1 383 110 Q100 18600 18600 REG 11.3 -- -- -- -- -- -- --A989 AUXVASSE CR MO094 CALLAWAY 2 273 312 Q100 42800 42800 REG 22.0 -- -- -- -- -- -- --G488 CEDAR CR US063 CALLAWAY 2 264 213 Q100 28100 28100 REG 17.9 13.2 L -- -- 7.8 -- 12.2H02853 SMITH BR BU 54 CALLAWAY 2 27 1.09 Q100 658 658 REG 7.2 1.3 L -- -- -- -- --L546 E WING CR MO094 CALLAWAY 2 79 4.06 Q100 3570 2695 BC 8.9 13.8 L 8.2 -- 5.5 -- 28.4N908 MIDDLE RI RT0PP CALLAWAY 2 172 56.6 Q100 14600 12950 BC 14.5 16.4 L 19.8 23.0 7.7 -- 21.7R417 MIDDLE RI RT00H CALLAWAY 2 132 9.70 Q100 3610 3610 REG 9.4 7.9 L -- -- 8.8 -- 12.1S553 WAINSCOTT CR MO094 CALLAWAY 2 89 3.08 Q100 2370 2370 REG 7.9 1.7 C -- -- 6.1 -- 6.9S908 AUXVASSE CR MO094 CALLAWAY 2 197 62.5 Q100 14200 14200 REG 15.2 11.2 L 20.8 16.6 11.8 4.0 22.2T539 LOGAN CR MO094 CALLAWAY 2 143 28.9 Q100 10700 10700 REG 14.9 12.7 L -- -- 6.5 -- 22.2T562 MIDDLE RI MO094 CALLAWAY 2 163 71.2 Q100 17100 14950 BC 16.9 0.0 L -- -- 28.8 -- 7.8J344 LINN CR US054 CAMDEN 2 159 10.5 Q100 6640 6640 REG 9.9 -- -- -- -- -- -- --W251 LINN CR RT00V CAMDEN 2 44 5.47 Q100 4790 3310 BC 15.0 2.2 L -- -- 7.8 -- 23.6A1414 MOREAU RI US054 COLE 2 415 531 Q100 53500 46278 EST 21.0 8.8 L -- 32.4 9.7 7.8 15.6A1470 N MOREAU CR RT00D COLE 2 274 318 Q100 37000 37000 REG 20.1 20.6 L 10.7 -- 13.6 8.7 27.6A2551 MOREAU RI US054 COLE 2 415 532 Q100 53500 46278 EST 21.0 5.6 L -- 32.4 9.7 7.8 13.0A2914 MOREAU RI RT00C COLE 2 374 335 Q100 37900 37900 REG 18.7 10.0 L -- 25.9 7.8 3.3 14.6A3618 MOREAU RI RT00B COLE 2 475 563 Q100 56700 56700 REG 22.5 22.3 L 39.1 -- 12.7 11.5 25.6



Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]


10111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455

J6


M6


C7


D7


E7


G7


P10


document.xls

District 05


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right

RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes-- Q500 5430 5430 REG 22.0 24.0 L -- -- -- -- -- -- N P Y Y N N -- -- 3-bbl box culvert; concrete bottom; large boulders at U/S R apron toe-- Qimp 179 179 BC 3.6 7.2 L -- -- -- -- -- -- Y Y Y Y N Y N -- Low-water crossing; 3-bbl box culvert with U/S headwall weir; riprap & large concrete slabs at U/S LB-- Qimp 668 668 BC 5.0 0.0 L -- -- -- -- -- -- Y Y Y Y N Y Y -- 3-bbl box culvert; poured concrete slabs at abutment toes

35.9 Qimp 2300 2300 BC 9.9 3.1 L -- -- 20.5 -- 19.3 17.1 Y Y Y Y Y Y N -- On bedrock outcrop with cobbled bed--concrete debris on U/S LB. Bridge built w/o skew, but channel has shifted. Both abutments and pier undercut and exposed--pier footing allows flow under it at U/S end. Photos taken.16.6 Q500 7460 7460 REG 12.1 9.2 L 5.8 -- 7.7 -- 16.8 19.8 P P Y P Y Y N -- Exposed rootwads on U/S LB indicate lateral instability. Riprap on L abutment to stop migration. No protection on R abutment. Old truss bridge U/S; may affect flow at this bridge.18.7 Qimp 5840 5840 BC 8.0 3.0 L -- 16.4 10.5 10.5 0.0 13.6 N N P Y N Y Y -- Outcrop on LB D/S and under bridge; D/S bridge A 4802; Gaged location - Gage approx 2 bridge lengths D/S on smaller plate-girder bridge16.5 Q500 4950 4950 REG 11.7 26.2 L -- -- 7.7 -- 19.7 19.5 N N Y Y N Y ? -- Extensive riprap on both banks & abutments. Dual bridge w/ A3124, third bridge (G739) D/S on outer road. Cutbank on U/S RB indicates lateral instability, but controlled at bridge by riprap.16.5 Q500 4950 4950 REG 11.7 26.2 L -- -- 7.7 -- 19.7 19.5 N N Y Y N Y ? -- Extensive riprap on both banks & abutments. Dual bridge w/ A3124, third bridge (G739) D/S on outer road. Cutbank on U/S RB indicates lateral instability, but controlled at bridge by riprap.

-- Q500 8430 8430 REG 8.7 -- -- -- -- -- -- -- -- N N Y N N Y Y -- Rock bluff/outcrop on RB; embankment on L side causes litte contraction of channel; piers probably founded on bedrock. Riprapped on L abutment up to Q500 depth. Flagged due to footing exposure--confirmed at footing founded on bedrock.13.2 Q500 12700 12700 REG 11.3 15.9 L 10.2 15.4 7.7 3.3 16.7 16.5 P P P Y N N -- -- Just outside city limits. No observed scour other than gully washing. Potential road overflow section on RFP.18.2 Q500 11400 11400 REG 13.0 0.0 L -- 10.3 7.7 -- 13.5 20.3 P P Y N Y Y N -- Old road grade on U/S RFP acts as a channelizing dike--will take brunt of scour. Rock outcrop on LB. Old bridge abutment on U/S LB. Concrete debris on L abutment & bank, none on R abutment, some on RB.

-- Q500 21100 21100 REG 14.4 -- -- -- -- -- -- -- -- Y N Y P N Y Y -- Well protected with riprap and cobble channel. Rock outcrop on D/S LB inplies bridge probably founded on bedrock. Overflow section on RFP. Channel along L edge of FP. Flagged due to mass wasting on RB--not deemed to be a problem.19.9 Qimp 11700 11700 BC 11.7 3.2 L 7.6 3.3 7.7 -- 14.0 12.1 Y N N Y Y Y N -- Deep channel w/ slumped banks U/S & D/S. Riprap on both abutments recently pushed in place. Meander bend in U/S channel cutting into RB. Shares FP with A558, road embankment between drops to elev of FP.11.9 Qimp 5900 5900 BC 9.4 6.6 L -- 6.3 7.7 -- 15.6 1.9 Y N N Y Y Y N -- Riprap on both abutments; LB at bridge indicates lateral shifting. Meander bend U/S cutting into RB. Shares FP with A557, road embankment between drops to elev of FP.

-- Q500 14900 14900 REG 17.2 -- -- -- -- -- -- -- -- P N Y N ? Y ? -- Large dam remnant will constrict flow. Flagged due to footing exposure--confirmed, but founded on bedrock outcrop. Surrounded by outrcrops, & highly armored channel.-- Q500 42700 42700 REG 12.5 -- -- -- -- -- -- -- -- N N Y P Y Y Y Y Bedrock outcrop on L side, abutment and pier built on it on LB. Minor scour evident on R setback, but filled with riprap. Flagged due to mass wasting on RB--not confirmed, and not deemed a problem at a site this large.

20.4 Qimp 10600 10600 BC 11.4 7.2 L -- 2.6 10.6 -- 3.9 14.9 Y N Y Y Y Y N -- Riprap on both abutments, concreted on L side. Channel migrating to L, impinging on L embankment; Road overflow section on LFP. Armoured channel. Sloughing on U/S RB.14.6 Q500 5540 5540 REG 11.9 14.5 L -- -- 6.4 -- 18.4 18.4 P Y N Y Y N -- -- Cobbles & gravel in channel. Cutbank on LB under bridge cutting into abutment. Meandering channel w/ cutbanks U/S. Q500 approx equals Qimp.14.5 Qimp 3490 3490 BC 8.8 2.6 L -- -- 3.9 -- 11.0 5.9 Y N P Y Y M N -- Concreted riprap on both abutment faces. Severe undercutting of riprap on L abutment; channel migrating to left--approx 20' high piles from low steel to channel. Overflow sections on both FPs.

7.9 Qimp 2220 2220 BC 13.0 9.4 L -- -- -- -- 15.2 -- Y Y Y N Y M N -- Substantial scour at L abutment, but apparently founded on bedrock. Outcrop on U/S RB. Some riprap on L abutment WW.14.4 Q500 4220 4220 REG 11.4 21.8 L -- -- 3.2 -- 17.0 16.8 P P N Y Y M N -- Concrete debris on L abutment; indications of lateral migration to L. Narrow channel bounded w/ trees & pasture. Numerous sand bars in channel. Cutbanks/blowhole under bridge.11.2 Q500 22900 22900 REG 16.7 8.8 L 32.7 -- 10.7 -- 23.2 15.6 P N N N Y Y N -- Riprap on both abutments and on RB to approx 100' U/S; road not overtopped by calculated Q's. Channel along R edge of FP.23.7 Qimp 13200 13200 BC 13.0 13.3 L -- -- 10.6 -- -- 20.4 Y N N Y Y Y N -- Concreted riprap on R abutment; riprap on LB & abutment at pier. Bank erosion at pier caused by vortex flow. Trees on banks indicate sloughing & widening.

-- Q500 20300 20300 REG 18.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Well protected with riprap on abutments & piers designed to resist scour. Relatively new bridge. Flagged due to mass wasting on LB--not deemed to be a problem at a site this large.23.5 Qimp 8550 8550 BC 14.0 19.9 L -- -- 7.7 -- 22.2 21.1 Y Y Y Y Y Y N -- Pressure flow at Q100. Concreted riprap & concrete debris on both abutments. Piers skewed by 10 deg but columns are 30' apart--skew insignificant. Channel degradation evident by undercutting of abutment protection.21.9 Q500 37500 37500 REG 20.9 16.1 L -- -- 7.8 -- 17.9 24.6 N N N N N Y ? -- On edge of MO River FP, along L edge of FP. Dual bridge w/ G488. Raised FP on L side; Riprap on both abutments. Leveed channel D/S.15.5 Q500 5690 5690 REG 9.9 7.5 L 14.3 14.3 7.7 -- 16.7 18.4 N N N N Y Y Y -- On edge of MO River FP. Leveed channel, limited to 1.5x bridge length. Riprap on both abutments, concrete debris on both banks. Banks show minimal sloughing.

-- Q500 24600 24600 REG 13.3 -- -- -- -- -- -- -- -- N N Y P N Y Y -- Riprap on both abutments and banks. Cobbles in channel. Substantial overbank areas; no evidence of scour. Flagged due to mass wasting on LB--not deemed to be a problem at a site of this size.-- Q500 57800 57800 REG 26.3 -- -- -- -- -- -- -- -- N P N N Y Y N -- Leveed channel on edge of MO River FP. Approx 300' D/S of Katy Trail bridge, same size. No contraction of flow. Flagged due to unknown pier scour--unable to further define, but not anticipated to be substantial. Riprap & concrete debris on LB & abutment.

21.9 Q500 37500 37500 REG 20.9 16.1 L -- -- 7.8 -- 17.9 24.6 N N N N N Y ? -- On edge of MO River FP, along L edge of FP. Dual bridge w/ A3532. Raised FP on L side; Riprap on both abutments. Leveed channel D/S.-- Q500 858 858 REG 8.4 1.4 L -- -- -- -- -- -- P P N N N Y N -- Vertical wall abutment footings slightly exposed; Q100 & Q500 flows within channel; moderate debris toward U/S LB; possilby box culvert(?)

28.4 Qimp 1820 1820 BC 7.0 12.8 L 4.8 -- 5.4 -- 21.9 21.9 Y Y N Y N N -- -- On edge of MO River FP; deeply incised channel. Pond on U/S RFP limits flow. MO River FP on L.20.8 Qimp 11300 11300 BC 13.0 16.5 L 17.9 21.1 7.7 -- 20.4 19.5 Y P N Y Y Y N -- Riprap on both autments & RB. Approx 1/2 mi U/S of MO River FP. Bar of concrete debris extends into channel from LB. Channel degrading. Meander bend w/ cutbank U/S.

8.0 Q500 4800 4800 REG 10.8 13.6 L -- -- 8.8 -- 14.7 12.2 N P N P P P N -- Riprap & concrete debris on both abutments & banks. Bridge built w/ 35 deg skew, but channel approaches at 15 deg; piers skewed by 20 deg to flow. No LFP U/S of bridge.6.9 Q500 3220 3220 REG 9.3 3.3 C -- -- 6.1 -- 11.7 11.7 N N Y N N Y N -- On edge of MO River FP approx 80'D/S of tressle on Katy Trail. Tressle will tend to catch debris and will act as U/S channel width control. Only scour potential from degradation. Riprap on abutments, bed, & banks from Katy Trail to 20' D/S of bridge.

14.2 Q500 19100 19100 REG 17.5 14.4 L 26.3 21.2 11.8 4.0 24.2 18.6 P N N N Y N -- -- On edge of MO River FP. Timber substructure, one bent rebuilt using H-pile frame. Road embankment limits LFP, Unleveed.11.3 Q500 14600 14600 REG 18.0 15.5 L -- -- 6.5 -- 24.9 17.2 P Y N N N N -- -- On edge of MO River FP--leveed for MO River flow, calculated Q's do not overtop levees. Substantial woody debris on piers. High water mark on top of pier caps. Minimal riprap on U/S side of R abutment.

7.8 Qimp 12800 12800 BC 15.4 0.0 L -- -- 28.8 -- 1.4 1.4 Y N N P Y M N -- On edge of MO River FP approx 180' D/S of Katy Trail bridge of same size. Katy Trail bridge will control U/S flow, minimal contraction at bridge in question, but flow can reach overflow sections on both FPs.-- Q500 9170 9170 REG 12.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Well protected banks and abutments. Recently riprapped. Photos taken.

33.6 Qimp 1830 1830 BC 10.5 2.0 L -- -- 7.7 -- -- 15.7 Y Y Y Y Y N -- -- Inlaid cobbling on LB U/S. Vertical abutments are undermined where concrete is poured from toe into bank. Center bent has substantial footing exposure w/ massive debris pile. Photos taken.22.9 Q500 71600 61934 EST 22.8 10.8 L -- 42.3 9.8 7.8 18.9 24.5 N N P Y Y Y Y -- Local scour evident on R setback around piers and abutment toe. Completely covered with riprap and concrete.15.2 Q500 49500 49500 REG 24.0 23.2 L 22.0 -- 13.6 8.7 31.0 20.9 N Y N Y N Y Y -- Concreted riprap on both abutment faces.21.7 Q500 71600 61934 EST 22.8 7.6 L -- 42.3 9.8 7.8 16.5 23.3 N N P Y Y Y Y -- Local scour evident on R setback around piers and abutment toe. Completely covered with riprap and concrete.20.5 Q500 50600 50600 REG 21.6 14.1 L -- 34.5 7.8 3.3 19.7 23.1 N N N Y N M N -- Bluff on L side. Marginal riprap on abutments and banks. Large concrete slabs on RB. Cutbanks are significant.13.5 Q500 76000 76000 REG 26.3 26.5 L 52.0 -- 12.8 11.5 29.0 20.0 N N N Y N M N -- Scattered cobbling on both banks and broken cobbles on R & L-abutments. Slumping extensive on upstream side of bridge. Channel deeply incised. No R setback or RFP




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]


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W6


Z6


AC10


document.xls

District 05

Comment codes:

Notes3-bbl box culvert; concrete bottom; large boulders at U/S R apron toeLow-water crossing; 3-bbl box culvert with U/S headwall weir; riprap & large concrete slabs at U/S LB3-bbl box culvert; poured concrete slabs at abutment toesOn bedrock outcrop with cobbled bed--concrete debris on U/S LB. Bridge built w/o skew, but channel has shifted. Both abutments and pier undercut and exposed--pier footing allows flow under it at U/S end. Photos taken.Exposed rootwads on U/S LB indicate lateral instability. Riprap on L abutment to stop migration. No protection on R abutment. Old truss bridge U/S; may affect flow at this bridge.Outcrop on LB D/S and under bridge; D/S bridge A 4802; Gaged location - Gage approx 2 bridge lengths D/S on smaller plate-girder bridgeExtensive riprap on both banks & abutments. Dual bridge w/ A3124, third bridge (G739) D/S on outer road. Cutbank on U/S RB indicates lateral instability, but controlled at bridge by riprap.Extensive riprap on both banks & abutments. Dual bridge w/ A3124, third bridge (G739) D/S on outer road. Cutbank on U/S RB indicates lateral instability, but controlled at bridge by riprap.Rock bluff/outcrop on RB; embankment on L side causes litte contraction of channel; piers probably founded on bedrock. Riprapped on L abutment up to Q500 depth. Flagged due to footing exposure--confirmed at footing founded on bedrock.Just outside city limits. No observed scour other than gully washing. Potential road overflow section on RFP.Old road grade on U/S RFP acts as a channelizing dike--will take brunt of scour. Rock outcrop on LB. Old bridge abutment on U/S LB. Concrete debris on L abutment & bank, none on R abutment, some on RB.Well protected with riprap and cobble channel. Rock outcrop on D/S LB inplies bridge probably founded on bedrock. Overflow section on RFP. Channel along L edge of FP. Flagged due to mass wasting on RB--not deemed to be a problem.Deep channel w/ slumped banks U/S & D/S. Riprap on both abutments recently pushed in place. Meander bend in U/S channel cutting into RB. Shares FP with A558, road embankment between drops to elev of FP.Riprap on both abutments; LB at bridge indicates lateral shifting. Meander bend U/S cutting into RB. Shares FP with A557, road embankment between drops to elev of FP.Large dam remnant will constrict flow. Flagged due to footing exposure--confirmed, but founded on bedrock outcrop. Surrounded by outrcrops, & highly armored channel.Bedrock outcrop on L side, abutment and pier built on it on LB. Minor scour evident on R setback, but filled with riprap. Flagged due to mass wasting on RB--not confirmed, and not deemed a problem at a site this large.Riprap on both abutments, concreted on L side. Channel migrating to L, impinging on L embankment; Road overflow section on LFP. Armoured channel. Sloughing on U/S RB.Cobbles & gravel in channel. Cutbank on LB under bridge cutting into abutment. Meandering channel w/ cutbanks U/S. Q500 approx equals Qimp.Concreted riprap on both abutment faces. Severe undercutting of riprap on L abutment; channel migrating to left--approx 20' high piles from low steel to channel. Overflow sections on both FPs.Substantial scour at L abutment, but apparently founded on bedrock. Outcrop on U/S RB. Some riprap on L abutment WW.Concrete debris on L abutment; indications of lateral migration to L. Narrow channel bounded w/ trees & pasture. Numerous sand bars in channel. Cutbanks/blowhole under bridge.Riprap on both abutments and on RB to approx 100' U/S; road not overtopped by calculated Q's. Channel along R edge of FP.Concreted riprap on R abutment; riprap on LB & abutment at pier. Bank erosion at pier caused by vortex flow. Trees on banks indicate sloughing & widening.Well protected with riprap on abutments & piers designed to resist scour. Relatively new bridge. Flagged due to mass wasting on LB--not deemed to be a problem at a site this large.Pressure flow at Q100. Concreted riprap & concrete debris on both abutments. Piers skewed by 10 deg but columns are 30' apart--skew insignificant. Channel degradation evident by undercutting of abutment protection.On edge of MO River FP, along L edge of FP. Dual bridge w/ G488. Raised FP on L side; Riprap on both abutments. Leveed channel D/S.On edge of MO River FP. Leveed channel, limited to 1.5x bridge length. Riprap on both abutments, concrete debris on both banks. Banks show minimal sloughing.Riprap on both abutments and banks. Cobbles in channel. Substantial overbank areas; no evidence of scour. Flagged due to mass wasting on LB--not deemed to be a problem at a site of this size.Leveed channel on edge of MO River FP. Approx 300' D/S of Katy Trail bridge, same size. No contraction of flow. Flagged due to unknown pier scour--unable to further define, but not anticipated to be substantial. Riprap & concrete debris on LB & abutment.On edge of MO River FP, along L edge of FP. Dual bridge w/ A3532. Raised FP on L side; Riprap on both abutments. Leveed channel D/S.Vertical wall abutment footings slightly exposed; Q100 & Q500 flows within channel; moderate debris toward U/S LB; possilby box culvert(?)On edge of MO River FP; deeply incised channel. Pond on U/S RFP limits flow. MO River FP on L.Riprap on both autments & RB. Approx 1/2 mi U/S of MO River FP. Bar of concrete debris extends into channel from LB. Channel degrading. Meander bend w/ cutbank U/S.Riprap & concrete debris on both abutments & banks. Bridge built w/ 35 deg skew, but channel approaches at 15 deg; piers skewed by 20 deg to flow. No LFP U/S of bridge.On edge of MO River FP approx 80'D/S of tressle on Katy Trail. Tressle will tend to catch debris and will act as U/S channel width control. Only scour potential from degradation. Riprap on abutments, bed, & banks from Katy Trail to 20' D/S of bridge.On edge of MO River FP. Timber substructure, one bent rebuilt using H-pile frame. Road embankment limits LFP, Unleveed.On edge of MO River FP--leveed for MO River flow, calculated Q's do not overtop levees. Substantial woody debris on piers. High water mark on top of pier caps. Minimal riprap on U/S side of R abutment.On edge of MO River FP approx 180' D/S of Katy Trail bridge of same size. Katy Trail bridge will control U/S flow, minimal contraction at bridge in question, but flow can reach overflow sections on both FPs.Well protected banks and abutments. Recently riprapped. Photos taken.Inlaid cobbling on LB U/S. Vertical abutments are undermined where concrete is poured from toe into bank. Center bent has substantial footing exposure w/ massive debris pile. Photos taken.Local scour evident on R setback around piers and abutment toe. Completely covered with riprap and concrete.Concreted riprap on both abutment faces.Local scour evident on R setback around piers and abutment toe. Completely covered with riprap and concrete.Bluff on L side. Marginal riprap on abutments and banks. Large concrete slabs on RB. Cutbanks are significant.Scattered cobbling on both banks and broken cobbles on R & L-abutments. Slumping extensive on upstream side of bridge. Channel deeply incised. No R setback or RFP



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AT10


document.xls

District 05

3-bbl box culvert; concrete bottom; large boulders at U/S R apron toeLow-water crossing; 3-bbl box culvert with U/S headwall weir; riprap & large concrete slabs at U/S LB3-bbl box culvert; poured concrete slabs at abutment toesOn bedrock outcrop with cobbled bed--concrete debris on U/S LB. Bridge built w/o skew, but channel has shifted. Both abutments and pier undercut and exposed--pier footing allows flow under it at U/S end. Photos taken.Exposed rootwads on U/S LB indicate lateral instability. Riprap on L abutment to stop migration. No protection on R abutment. Old truss bridge U/S; may affect flow at this bridge.Outcrop on LB D/S and under bridge; D/S bridge A 4802; Gaged location - Gage approx 2 bridge lengths D/S on smaller plate-girder bridgeExtensive riprap on both banks & abutments. Dual bridge w/ A3124, third bridge (G739) D/S on outer road. Cutbank on U/S RB indicates lateral instability, but controlled at bridge by riprap.Extensive riprap on both banks & abutments. Dual bridge w/ A3124, third bridge (G739) D/S on outer road. Cutbank on U/S RB indicates lateral instability, but controlled at bridge by riprap.Rock bluff/outcrop on RB; embankment on L side causes litte contraction of channel; piers probably founded on bedrock. Riprapped on L abutment up to Q500 depth. Flagged due to footing exposure--confirmed at footing founded on bedrock.Just outside city limits. No observed scour other than gully washing. Potential road overflow section on RFP.Old road grade on U/S RFP acts as a channelizing dike--will take brunt of scour. Rock outcrop on LB. Old bridge abutment on U/S LB. Concrete debris on L abutment & bank, none on R abutment, some on RB.Well protected with riprap and cobble channel. Rock outcrop on D/S LB inplies bridge probably founded on bedrock. Overflow section on RFP. Channel along L edge of FP. Flagged due to mass wasting on RB--not deemed to be a problem.Deep channel w/ slumped banks U/S & D/S. Riprap on both abutments recently pushed in place. Meander bend in U/S channel cutting into RB. Shares FP with A558, road embankment between drops to elev of FP.Riprap on both abutments; LB at bridge indicates lateral shifting. Meander bend U/S cutting into RB. Shares FP with A557, road embankment between drops to elev of FP.Large dam remnant will constrict flow. Flagged due to footing exposure--confirmed, but founded on bedrock outcrop. Surrounded by outrcrops, & highly armored channel.Bedrock outcrop on L side, abutment and pier built on it on LB. Minor scour evident on R setback, but filled with riprap. Flagged due to mass wasting on RB--not confirmed, and not deemed a problem at a site this large.Riprap on both abutments, concreted on L side. Channel migrating to L, impinging on L embankment; Road overflow section on LFP. Armoured channel. Sloughing on U/S RB.Cobbles & gravel in channel. Cutbank on LB under bridge cutting into abutment. Meandering channel w/ cutbanks U/S. Q500 approx equals Qimp.Concreted riprap on both abutment faces. Severe undercutting of riprap on L abutment; channel migrating to left--approx 20' high piles from low steel to channel. Overflow sections on both FPs.Substantial scour at L abutment, but apparently founded on bedrock. Outcrop on U/S RB. Some riprap on L abutment WW.Concrete debris on L abutment; indications of lateral migration to L. Narrow channel bounded w/ trees & pasture. Numerous sand bars in channel. Cutbanks/blowhole under bridge.Riprap on both abutments and on RB to approx 100' U/S; road not overtopped by calculated Q's. Channel along R edge of FP.Concreted riprap on R abutment; riprap on LB & abutment at pier. Bank erosion at pier caused by vortex flow. Trees on banks indicate sloughing & widening.Well protected with riprap on abutments & piers designed to resist scour. Relatively new bridge. Flagged due to mass wasting on LB--not deemed to be a problem at a site this large.Pressure flow at Q100. Concreted riprap & concrete debris on both abutments. Piers skewed by 10 deg but columns are 30' apart--skew insignificant. Channel degradation evident by undercutting of abutment protection.On edge of MO River FP, along L edge of FP. Dual bridge w/ G488. Raised FP on L side; Riprap on both abutments. Leveed channel D/S.On edge of MO River FP. Leveed channel, limited to 1.5x bridge length. Riprap on both abutments, concrete debris on both banks. Banks show minimal sloughing.Riprap on both abutments and banks. Cobbles in channel. Substantial overbank areas; no evidence of scour. Flagged due to mass wasting on LB--not deemed to be a problem at a site of this size.Leveed channel on edge of MO River FP. Approx 300' D/S of Katy Trail bridge, same size. No contraction of flow. Flagged due to unknown pier scour--unable to further define, but not anticipated to be substantial. Riprap & concrete debris on LB & abutment.On edge of MO River FP, along L edge of FP. Dual bridge w/ A3532. Raised FP on L side; Riprap on both abutments. Leveed channel D/S.Vertical wall abutment footings slightly exposed; Q100 & Q500 flows within channel; moderate debris toward U/S LB; possilby box culvert(?)On edge of MO River FP; deeply incised channel. Pond on U/S RFP limits flow. MO River FP on L.Riprap on both autments & RB. Approx 1/2 mi U/S of MO River FP. Bar of concrete debris extends into channel from LB. Channel degrading. Meander bend w/ cutbank U/S.Riprap & concrete debris on both abutments & banks. Bridge built w/ 35 deg skew, but channel approaches at 15 deg; piers skewed by 20 deg to flow. No LFP U/S of bridge.On edge of MO River FP approx 80'D/S of tressle on Katy Trail. Tressle will tend to catch debris and will act as U/S channel width control. Only scour potential from degradation. Riprap on abutments, bed, & banks from Katy Trail to 20' D/S of bridge.On edge of MO River FP. Timber substructure, one bent rebuilt using H-pile frame. Road embankment limits LFP, Unleveed.On edge of MO River FP--leveed for MO River flow, calculated Q's do not overtop levees. Substantial woody debris on piers. High water mark on top of pier caps. Minimal riprap on U/S side of R abutment.On edge of MO River FP approx 180' D/S of Katy Trail bridge of same size. Katy Trail bridge will control U/S flow, minimal contraction at bridge in question, but flow can reach overflow sections on both FPs.Well protected banks and abutments. Recently riprapped. Photos taken.Inlaid cobbling on LB U/S. Vertical abutments are undermined where concrete is poured from toe into bank. Center bent has substantial footing exposure w/ massive debris pile. Photos taken.Local scour evident on R setback around piers and abutment toe. Completely covered with riprap and concrete.Concreted riprap on both abutment faces.Local scour evident on R setback around piers and abutment toe. Completely covered with riprap and concrete.Bluff on L side. Marginal riprap on abutments and banks. Large concrete slabs on RB. Cutbanks are significant.Scattered cobbling on both banks and broken cobbles on R & L-abutments. Slumping extensive on upstream side of bridge. Channel deeply incised. No R setback or RFP

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document.xls

District 05



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A4351 MOREAU RI US063 COLE 2 477 581 Q100 46000 46000 REG 16.4 -- -- -- -- -- -- --A576 GRAYS CR MO179 COLE 2 172 22.9 Q100 6270 6270 REG 10.8 17.0 L -- 26.7 8.5 -- 8.9A723 MOREAU RI US063 COLE 2 577 581 Q100 47400 47400 REG 23.4 0.0 L 26.2 28.7 16.7 4.5 18.3N683 ROCK CR RT00W COLE 2 99 3.99 Q100 2530 2530 REG 8.5 0.0 L -- -- 3.9 -- 9.1W572 WEARS CR SIGN SHOP DCOLE 2 75 8.13 Q100 4620 4620 REG 14.2 5.7 L -- -- -- -- 16.6X35 ROCK CR MO179 COLE 2 102 7.46 Q100 3970 3970 REG 9.6 7.1 L -- -- 5.5 -- 28.7Y310 STROBEL RI RT00U COLE 2 33 3.87 Q100 2910 2260 BC 13.5 2.6 L -- -- -- -- 30.3A1382 BLACKWATER CR RT00K COOPER 2 425 1660 Q100 89400 81450 BC 26.1 0.0 L 19.7 23.4 10.8 7.9 24.8A1831 PETITE SALINE CR MO179 COOPER 2 313 234 Q100 26700 26700 REG 16.8 3.6 L 28.3 26.8 7.8 3.3 23.1A2012A&B LAMINE RI IS070 COOPER 2 761 1080 Q100 69100 69100 REG 15.8 -- -- -- -- -- -- --A4460 STEPHENS FK CR RT J COOPER 2 44 2.08 Q100 1850 1361 BC 10.2 3.1 L -- -- -- -- --A4608 CLARKS FK CR MO087 COOPER 2 193 39.6 Q100 12500 12500 REG 14.2 13.4 L 26.3 18.0 3.3 -- 19.8K236 LAMINE RI MO041 COOPER 2 523 2650 Q100 109000 109000 REG 26.9 15.2 L 34.9 -- 11.9 6.6 42.8N401 BRUSHY CR RT0HH COOPER 2 119 2.89 Q100 2870 2870 REG 7.8 2.5 L -- 13.0 6.1 -- 6.8N47 HEATHS CR RT00Z COOPER 2 194 103 Q100 16800 13850 BC 14.4 3.4 L 17.7 -- 10.6 -- 19.7P227 FLAT CR RT0DD COOPER 2 161 20.4 Q100 5780 5780 REG 12.8 0.0 L -- -- 7.7 3.9 10.3A3599 CRIDER CR RT00A GASCONADE 2 214 28.1 Q100 17300 17300 REG 15.3 21.2 L -- -- -- -- --A4062 SECOND CR US 50 GASCONADE 2 365 24.0 Q100 10000 10000 REG 13.6 2.1 L -- 16.3 7.7 7.7 10.8A4435 RED OAK CR RT00V GASCONADE 2 136 11.2 Q100 6290 6290 REG 11.2 22.2 L -- -- 7.7 -- 16.1R500 DRY FK CR RT00B GASCONADE 2 261 66.9 Q100 15900 15900 REG 14.5 16.8 L 21.9 -- 9.3 -- 20.4S826 FRENE CR MO100 GASCONADE 2 83 10.6 Q100 10400 10400 REG 19.2 -- -- -- -- 8.8 -- 12.5X417 FIRST CR RT00J GASCONADE 2 166 24.0 Q100 10400 10400 REG 13.3 5.7 L -- -- 3.9 -- 14.5X525 THIRD CR RT00A GASCONADE 2 217 80.9 Q100 27600 24650 BC 18.1 18.4 L -- -- 4.0 -- 20.9A4447 L BOURBEUSE CR RT00H MARIES 2 171 35.3 Q100 11500 11500 REG 14.2 15.9 L -- -- 7.7 -- 19.2W268 MARIES RI RT0AA MARIES 2 45 1.71 Q100 1880 1600 BC 9.0 0.0 L -- -- -- -- 9.5W275 L MARIES RI RT0BB MARIES 2 70 7.09 Q100 4240 4240 REG 12.4 15.4 L -- -- 13.4 -- 33.5W38 MARIES RI RT00N MARIES 2 139 27.4 Q100 10100 6100 BC 10.4 1.3 L -- -- 18.8 -- 13.0W490 L MARIES RI RT0DD MARIES 2 70 17.2 Q100 7670 7670 REG 18.1 26.2 L -- -- 18.0 -- 31.8W93 MILLS SPRING MO042 MARIES 2 35 1.53 Q100 2450 1502 BC 11.8 11.6 L -- -- -- -- 20.0X882 EASTLAND CR RT E MARIES 2 1084 6.53 Q100 4730 2748 BC 17.9 24.6 L -- -- -- -- --A1675A&B BIG SPRINGS CR US054 MILLER 2 212 23.8 Q100 10600 10600 REG 14.1 22.7 L -- -- 8.7 -- 11.1H119 SALINE CR MO017 MILLER 2 288 61.7 Q100 18600 18600 REG 13.9 14.0 L -- -- 23.9 -- 25.8J719 OSAGE RI RT 17 MILLER 2 184 3630 Q100 143000 143000 REG 24.3 2.7 L 7.4 18.3 12.1 7.8 19.8S05361 HUMPHREYS CR MO052 MILLER 2 114 10.1 Q100 6200 6200 REG 11.9 5.5 L -- -- 3.9 -- 39.5S609 PANTHER CR MO052 MILLER 2 106 3.97 Q100 3530 3530 REG 9.9 11.4 L -- -- 7.1 3.9 31.3T962 L TAVERN CR MO052 MILLER 2 304 301 Q100 42000 25755 BC 17.1 11.9 L -- -- 13.5 13.5 24.1W538 RABBITHEAD CR RT EE MILLER 2 23 0.54 Q100 800 800 REG 9.0 9.2 L -- -- -- -- --A1836 BURRIS CR FK RT0CC MONITEAU 2 197 47.3 Q100 12200 12200 REG 14.1 14.7 L 22.8 -- 7.8 3.3 21.9A4593 MONITEAU RI MO087 MONITEAU 2 375 170 Q100 30900 30900 REG 16.9 0.0 L -- 35.8 8.7 3.3 11.9A1193 LAMINE RI US050 MORGAN 2 898 541 Q100 46300 46300 REG 11.6 13.2 L 19.6 17.3 17.9 10.1 20.8Y529 CREEK RT0AA MORGAN 2 27 1.74 Q100 2180 2180 REG 14.7 -- -- -- -- -- -- --A1822 DEER CR MO100 OSAGE 2 158 17.4 Q100 7770 7770 REG 13.4 13.6 L -- -- 10.5 -- 10.7A2525 LOOSE CR US050 OSAGE 2 120 4.36 Q100 3420 3420 REG 8.3 1.2 L 13.4 -- 7.3 -- 7.9A4188 MARIES RI US050 OSAGE 2 304 1.83 Q100 2120 2120 REG 3.4 -- -- -- -- -- -- --A4322 MARIES RI US063 OSAGE 2 325 255 Q100 36800 36800 REG 18.1 -- -- -- -- -- -- --


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document.xls

District 05


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- Q500 60800 60800 REG 19.4 -- -- -- -- -- -- -- -- N N N Y N M Y -- Boulder to cobble size riprap on RB & LB; old bridge abutments downstream. Riprap exists only on banks and between U/S and D/S bridges on both banks.

21.7 Q500 8330 8330 REG 12.6 18.9 L -- 32.6 8.6 -- 13.5 23.2 N N N Y N M N -- R & L-abutment are moderately riprapped.16.2 Q500 62700 62700 REG 24.4 0.0 L 33.4 36.5 16.7 4.5 19.7 18.1 N N N Y N M Y -- Boulder to cobble size riprap on RB & LB; old bridge abutments downstream. Riprap exists only on banks and between U/S and D/S bridges on both banks.

9.1 Q500 3420 3420 REG 9.7 0.0 L -- -- 3.9 -- 12.4 12.4 P P N P N N -- -- Upstream presents a constriction composed of old bridge abutments and respective road embankment. Contraction scour should not be a concern due to upstream condition.16.6 Q500 6300 6300 REG 16.4 6.5 L -- -- -- -- 23.0 23.0 N N Y N N Y Y -- Boulders & cobbles on both abutment faces; stone wall at R abutment toe12.1 Q500 5380 5380 REG 11.5 9.7 L -- -- 5.5 -- 31.2 19.8 P Y N Y N M N -- Extensive cobbling on R-abutment and on the upstream apron of the R-abutment. Cobbles and boulders extend down into channel. Cutbanks exist under bridge.10.7 Qimp 1610 1610 BC 11.0 4.3 L -- -- -- -- 21.6 -- Y Y P N N N -- -- Abutments slightly undercut; small span, no defined channel. No piers; vertical abutments.14.5 Qimp 73500 73500 BC 24.0 0.0 L 17.5 20.0 10.7 7.8 22.9 9.8 Y N N N Y Y Y -- Large riprap on both abutments and R U/S & D/S embankment faces. Rock hill on L side. Minor local scour holes on both setbacks. Conservation park area surrounded by trees on U/S RFP.23.2 Q500 35400 35400 REG 19.7 5.0 L 34.8 33.3 7.8 3.3 25.6 25.7 P N P P ? Y N -- Bridge in backwater up to bankfull width. Terraced bank at bankfull approx 550' wide. R side bordered by ridge, L edge of L terrace equals abutment. Terraced bank funnels flow through bridge. Riprap on both abutments.

-- Q500 91200 91200 REG 18.7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Substantial opening. Very well protected abutments. Rock outcrop on R side. Minor local scour and gully washing on L setback.-- Qimp 871 871 BC 7.8 1.3 L -- -- -- -- -- -- Y Y Y Y N N -- -- 3-bbl box culvert; concrete bottom; filling with gravel and cobbles

11.1 Q500 17000 17000 REG 16.4 14.5 L 31.8 23.0 3.3 -- 21.8 15.4 P N N Y Y Y Y -- Riprap apron on L abutment seems well designed. Cobbles & boulders on banks may be bank material or may be placed. Channel along R edge of FP. No RFP, but R setback area develops.21.8 Q500 143000 143000 REG 30.7 17.6 L 46.6 -- 12.0 6.6 47.6 30.6 P Y N Y Y M N -- Inlaid cobbling on abutments. Small shale outcrop on RB. Local scour on L setback Along R edge of FP.13.5 Q500 3960 3960 REG 9.2 3.5 L -- 16.7 6.1 -- 11.7 16.1 N N N Y Y Y N -- On edge of Lamine River floodplain; apparently designed for backwater from Lamine. Raised floodplain on L side which limits flow to RFP only. Riprap on R abutment and upstream LB; however, channel shifting to left and significant cutbanks observed.

5.0 Qimp 10900 10900 BC 12.5 5.0 L 14.8 -- 10.6 -- 16.5 -- Y N Y P Y Y N -- Qimp approx equals Q100. Riprap on L abutment; concrete debris on R abutment. Appears channelized, but beginning to meander; cutbanks evident. Gravel bar D/S indicates armoring (not confirmed) Overflow sections on both FPs. FP raised on both sides.10.3 Q500 7680 7680 REG 14.0 0.0 L -- -- 7.7 3.9 12.9 12.9 P P N Y ? N -- -- Just U/S of Blackwater River, which parallels road. Road at same elevation as FP on R side, but FP appears built up. Levee on U/S LFP and raised FP on R side funnel flow through bridge--no contraction. Recent dirtwork on U/S face.

-- Q500 24500 24500 REG 18.9 31.6 L -- -- -- -- -- -- P Y Y Y N N -- -- Cutbanks on both banks upstream of bridge and under bridge; some debris in channel. No riprap. Gravel mining extensive approx 1 bridge length downstream causing further degradation.13.4 Q500 13800 13800 REG 16.0 4.0 L -- 19.9 7.8 7.8 15.4 17.9 N N Y Y N Y Y -- Some local scour at bents; R abutment covered with cobble-sized riprap20.2 Q500 8630 8630 REG 13.5 29.3 L -- -- 7.7 -- 19.9 22.3 N Y Y P N N -- -- Shallow gravel channel; no riprap.20.2 Q500 21600 21600 REG 17.3 20.9 L 28.7 -- 9.4 -- 22.8 22.7 N N N Y N M Y -- Some large boulders on RB. Moderate riprap on L-abutment and LB. 12.5 Q500 14900 14900 REG 23.8 -- -- -- -- 8.8 -- 20.3 20.3 -- -- -- -- -- -- -- -- Fully protected banks and abutments. Inlayed concrete squares poured around piers. Shallow bedrock channel.10.6 Q500 14300 14300 REG 15.5 11.0 L -- -- 4.0 -- 18.8 15.1 N N Y N Y Y Y -- Abutments well protected; poured concrete on L-abutment. Broken cobbles on RB and abutment. Local scour evident underneath bridge. Photos taken.21.5 Qimp 21700 21700 BC 16.8 18.8 L -- -- 4.0 -- 19.7 20.3 Y Y Y P N Y Y -- Massive debris pile downstream. Moderate debris upstream. Gravel mining operation just downstream. Protected R & L abutments. Concreted riprap around abutments. Blow hole evident on the upstream LB12.7 Q500 15700 15700 REG 16.6 19.9 L -- -- 7.8 -- 21.4 17.2 N P Y P N N -- -- Limestone/Sandstone outcrop just upstream on RB. Outcrop is discontinuous underneath bridge on RB. Outcrop will confine flow; out-of-bank flow will occur in LFP.21.2 Qimp 1320 1320 BC 8.0 0.0 L -- -- -- -- 3.4 18.5 Y Y Y P Y N -- -- Vertical abutments with exposed footings. Both footings are slightly undermined. Bedrock channel.27.4 Q500 5780 5780 REG 15.0 20.0 L -- -- 13.5 -- 38.4 35.5 N Y Y Y Y M Y -- Gravel bedrock channel. Footing is undermined considerably but may not pose a threat due to bedrock. Riprap exists on both abutment faces with poured concrete.21.2 Qimp 2100 2100 BC 5.5 2.8 L -- -- 18.5 -- -- -- Y Y Y Y Y N -- -- Excessive contraction scour; footing exposure. Gravel channel bed; no defined main channel. Footings are undermined.27.2 Q500 10500 10500 REG 21.8 34.4 L -- -- 18.1 -- 36.9 33.1 Y Y Y P Y N -- -- No well defined channel. Abutments and pier footing exposed. Bedrock channel may limit problems from undermined pier footing and vertical abutments.20.2 Qimp 554 554 BC 6.5 6.8 L -- -- -- -- 10.2 11.2 Y Y P N ? N -- -- L-abutment partially exposed. Gravel channel. Overtopping is significant at this site. R-overbank parallels channel upstream.

-- Qimp 765 765 BC 8.3 18.8 L -- -- -- -- -- -- Y Y Y Y Y N -- -- 3-bbl box culvert; concrete bottom; sharp meander U/S; U/S RB cut & incising21.9 Q500 14500 14500 REG 16.6 27.4 L -- -- 8.7 -- 15.8 24.1 N N N Y ? Y Y Y Both banks and abutments well protected and concreted. Riprap has been poured in a spurdike fashion between upstream and downstream bridge.12.5 Q500 25400 25400 REG 16.5 15.3 L -- -- 24.0 -- 28.2 17.5 N N P Y N Y Y -- Cobbling exists on both abutments. Concrete slabs exist upstream on LB where sloughing has taken place. Bluff on R side.33.1 Q500 189000 189000 REG 27.6 4.5 L 13.0 22.2 12.2 7.9 22.8 34.5 Y N N N N Y Y -- Riprap/stone revetment & concrete at abutments; banks undergoing localized mass wasting, but relatively stable.41.5 Q500 8530 8530 REG 14.3 6.7 L -- -- 4.0 -- 43.5 45.4 N N Y N ? N -- -- No protection on banks or abutments. L-bent has small insignificant amount of local scour.36.2 Q500 4870 4870 REG 11.5 24.2 L -- -- 7.1 4.0 36.0 38.8 N N Y P ? M Y -- Protection exists on R-abutment. L-abutment not protected. Gravel channel. Concrete connecting caps barely visable at LB H-pile set. LFP constricted by road embankment. Old bridge abutments upstream approx 100'.16.3 Qimp 9510 9510 BC 9.4 9.6 L -- -- 13.3 13.3 14.9 -- Y Y N Y ? N -- -- No riprap at abutments or banks. Confluence upstream approx 400'. Confluence exists approx 200' upstream; both streams parallel road at the approach with road overtopping imminent. Floodplain widths at approach taken from main channel to the highway.

-- Q500 1090 1090 REG 10.8 13.9 L -- -- -- -- -- -- Y Y N Y N Y N -- 2-bbl box culvert; concrete bottom; round-nosed web; fence & debris U/S; sharp meander U/S11.1 Q500 16500 16500 REG 16.4 16.4 L 28.7 -- 7.8 3.3 23.9 15.4 N N N Y N Y Y -- L abutment well protected. Local scour around setback piers; filled in with asphalt slabs. Limestone / sandstone outcrop on RB up to R abutment.23.4 Q500 41900 41900 REG 19.7 0.0 L -- 45.3 8.8 3.3 17.4 26.0 N N N Y Y M N -- Well defined local scour and contraction scour on setback. Riprap covering R abutment completely. Limestone outcrop evident at base of LB and L abutment. Upstream channel is well protected and at the bridge. Footing exposure on RB. Photos taken13.0 Q500 61400 61400 REG 13.6 15.7 L 23.6 21.2 18.0 10.1 22.6 16.8 N N Y Y Y Y Y Y Dual upstream channel divided by island. Bridge built w/o skew. Spurdike on LFP. Riprap on both abutments and on LB of R channel. Used combined upstream channel widths for total channel widths. Split FP between channels and shared equally.

-- Q500 3020 3020 REG 17.9 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Small span with vertical abutments founded on bedrock which is evident at the channel bottom.17.2 Q500 10600 10600 REG 15.7 17.1 L -- -- 10.5 -- 15.1 20.3 N N N Y N N -- -- Mass wasting on both banks; No protection. RFP is steep bluff.

7.1 Q500 4690 4690 REG 9.7 7.7 L 17.0 -- 7.4 -- 12.4 12.1 N N Y Y N M N -- Footing exposure on both piers on main channel bent which is founded on bedrock. Some riprap at RB upstream and at bridge. Broken cobbles under R abutment and on LB.-- Q500 2930 2930 REG 4.1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Maries River bridge is extremely well protected on both abutments and banks; cutbanks are low to moderate upstream and on LB. Downstream serves as mild control; sharp meander along outcrop near quarry. Photos taken.-- Q500 49700 49700 REG 21.6 -- -- -- -- -- -- -- -- N N P Y N Y N -- LB and abutment well protected. RB protected. High water mark vaguely visable approx 17' below low steel. Cobbling extends into channel. No signs of local scour.


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Boulder to cobble size riprap on RB & LB; old bridge abutments downstream. Riprap exists only on banks and between U/S and D/S bridges on both banks.R & L-abutment are moderately riprapped.Boulder to cobble size riprap on RB & LB; old bridge abutments downstream. Riprap exists only on banks and between U/S and D/S bridges on both banks.Upstream presents a constriction composed of old bridge abutments and respective road embankment. Contraction scour should not be a concern due to upstream condition.Boulders & cobbles on both abutment faces; stone wall at R abutment toeExtensive cobbling on R-abutment and on the upstream apron of the R-abutment. Cobbles and boulders extend down into channel. Cutbanks exist under bridge.Abutments slightly undercut; small span, no defined channel. No piers; vertical abutments.Large riprap on both abutments and R U/S & D/S embankment faces. Rock hill on L side. Minor local scour holes on both setbacks. Conservation park area surrounded by trees on U/S RFP.Bridge in backwater up to bankfull width. Terraced bank at bankfull approx 550' wide. R side bordered by ridge, L edge of L terrace equals abutment. Terraced bank funnels flow through bridge. Riprap on both abutments.Substantial opening. Very well protected abutments. Rock outcrop on R side. Minor local scour and gully washing on L setback.3-bbl box culvert; concrete bottom; filling with gravel and cobblesRiprap apron on L abutment seems well designed. Cobbles & boulders on banks may be bank material or may be placed. Channel along R edge of FP. No RFP, but R setback area develops.Inlaid cobbling on abutments. Small shale outcrop on RB. Local scour on L setback Along R edge of FP.On edge of Lamine River floodplain; apparently designed for backwater from Lamine. Raised floodplain on L side which limits flow to RFP only. Riprap on R abutment and upstream LB; however, channel shifting to left and significant cutbanks observed.Qimp approx equals Q100. Riprap on L abutment; concrete debris on R abutment. Appears channelized, but beginning to meander; cutbanks evident. Gravel bar D/S indicates armoring (not confirmed) Overflow sections on both FPs. FP raised on both sides.Just U/S of Blackwater River, which parallels road. Road at same elevation as FP on R side, but FP appears built up. Levee on U/S LFP and raised FP on R side funnel flow through bridge--no contraction. Recent dirtwork on U/S face.Cutbanks on both banks upstream of bridge and under bridge; some debris in channel. No riprap. Gravel mining extensive approx 1 bridge length downstream causing further degradation.Some local scour at bents; R abutment covered with cobble-sized riprapShallow gravel channel; no riprap.Some large boulders on RB. Moderate riprap on L-abutment and LB. Fully protected banks and abutments. Inlayed concrete squares poured around piers. Shallow bedrock channel.Abutments well protected; poured concrete on L-abutment. Broken cobbles on RB and abutment. Local scour evident underneath bridge. Photos taken.Massive debris pile downstream. Moderate debris upstream. Gravel mining operation just downstream. Protected R & L abutments. Concreted riprap around abutments. Blow hole evident on the upstream LBLimestone/Sandstone outcrop just upstream on RB. Outcrop is discontinuous underneath bridge on RB. Outcrop will confine flow; out-of-bank flow will occur in LFP.Vertical abutments with exposed footings. Both footings are slightly undermined. Bedrock channel.Gravel bedrock channel. Footing is undermined considerably but may not pose a threat due to bedrock. Riprap exists on both abutment faces with poured concrete.Excessive contraction scour; footing exposure. Gravel channel bed; no defined main channel. Footings are undermined.No well defined channel. Abutments and pier footing exposed. Bedrock channel may limit problems from undermined pier footing and vertical abutments.L-abutment partially exposed. Gravel channel. Overtopping is significant at this site. R-overbank parallels channel upstream.3-bbl box culvert; concrete bottom; sharp meander U/S; U/S RB cut & incisingBoth banks and abutments well protected and concreted. Riprap has been poured in a spurdike fashion between upstream and downstream bridge.Cobbling exists on both abutments. Concrete slabs exist upstream on LB where sloughing has taken place. Bluff on R side.Riprap/stone revetment & concrete at abutments; banks undergoing localized mass wasting, but relatively stable.No protection on banks or abutments. L-bent has small insignificant amount of local scour.Protection exists on R-abutment. L-abutment not protected. Gravel channel. Concrete connecting caps barely visable at LB H-pile set. LFP constricted by road embankment. Old bridge abutments upstream approx 100'.No riprap at abutments or banks. Confluence upstream approx 400'. Confluence exists approx 200' upstream; both streams parallel road at the approach with road overtopping imminent. Floodplain widths at approach taken from main channel to the highway.2-bbl box culvert; concrete bottom; round-nosed web; fence & debris U/S; sharp meander U/SL abutment well protected. Local scour around setback piers; filled in with asphalt slabs. Limestone / sandstone outcrop on RB up to R abutment.Well defined local scour and contraction scour on setback. Riprap covering R abutment completely. Limestone outcrop evident at base of LB and L abutment. Upstream channel is well protected and at the bridge. Footing exposure on RB. Photos takenDual upstream channel divided by island. Bridge built w/o skew. Spurdike on LFP. Riprap on both abutments and on LB of R channel. Used combined upstream channel widths for total channel widths. Split FP between channels and shared equally.Small span with vertical abutments founded on bedrock which is evident at the channel bottom.Mass wasting on both banks; No protection. RFP is steep bluff.Footing exposure on both piers on main channel bent which is founded on bedrock. Some riprap at RB upstream and at bridge. Broken cobbles under R abutment and on LB.Maries River bridge is extremely well protected on both abutments and banks; cutbanks are low to moderate upstream and on LB. Downstream serves as mild control; sharp meander along outcrop near quarry. Photos taken.LB and abutment well protected. RB protected. High water mark vaguely visable approx 17' below low steel. Cobbling extends into channel. No signs of local scour.


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Boulder to cobble size riprap on RB & LB; old bridge abutments downstream. Riprap exists only on banks and between U/S and D/S bridges on both banks.R & L-abutment are moderately riprapped.Boulder to cobble size riprap on RB & LB; old bridge abutments downstream. Riprap exists only on banks and between U/S and D/S bridges on both banks.Upstream presents a constriction composed of old bridge abutments and respective road embankment. Contraction scour should not be a concern due to upstream condition.Boulders & cobbles on both abutment faces; stone wall at R abutment toeExtensive cobbling on R-abutment and on the upstream apron of the R-abutment. Cobbles and boulders extend down into channel. Cutbanks exist under bridge.Abutments slightly undercut; small span, no defined channel. No piers; vertical abutments.Large riprap on both abutments and R U/S & D/S embankment faces. Rock hill on L side. Minor local scour holes on both setbacks. Conservation park area surrounded by trees on U/S RFP.Bridge in backwater up to bankfull width. Terraced bank at bankfull approx 550' wide. R side bordered by ridge, L edge of L terrace equals abutment. Terraced bank funnels flow through bridge. Riprap on both abutments.Substantial opening. Very well protected abutments. Rock outcrop on R side. Minor local scour and gully washing on L setback.3-bbl box culvert; concrete bottom; filling with gravel and cobblesRiprap apron on L abutment seems well designed. Cobbles & boulders on banks may be bank material or may be placed. Channel along R edge of FP. No RFP, but R setback area develops.Inlaid cobbling on abutments. Small shale outcrop on RB. Local scour on L setback Along R edge of FP.On edge of Lamine River floodplain; apparently designed for backwater from Lamine. Raised floodplain on L side which limits flow to RFP only. Riprap on R abutment and upstream LB; however, channel shifting to left and significant cutbanks observed.Qimp approx equals Q100. Riprap on L abutment; concrete debris on R abutment. Appears channelized, but beginning to meander; cutbanks evident. Gravel bar D/S indicates armoring (not confirmed) Overflow sections on both FPs. FP raised on both sides.Just U/S of Blackwater River, which parallels road. Road at same elevation as FP on R side, but FP appears built up. Levee on U/S LFP and raised FP on R side funnel flow through bridge--no contraction. Recent dirtwork on U/S face.Cutbanks on both banks upstream of bridge and under bridge; some debris in channel. No riprap. Gravel mining extensive approx 1 bridge length downstream causing further degradation.Some local scour at bents; R abutment covered with cobble-sized riprapShallow gravel channel; no riprap.Some large boulders on RB. Moderate riprap on L-abutment and LB. Fully protected banks and abutments. Inlayed concrete squares poured around piers. Shallow bedrock channel.Abutments well protected; poured concrete on L-abutment. Broken cobbles on RB and abutment. Local scour evident underneath bridge. Photos taken.Massive debris pile downstream. Moderate debris upstream. Gravel mining operation just downstream. Protected R & L abutments. Concreted riprap around abutments. Blow hole evident on the upstream LBLimestone/Sandstone outcrop just upstream on RB. Outcrop is discontinuous underneath bridge on RB. Outcrop will confine flow; out-of-bank flow will occur in LFP.Vertical abutments with exposed footings. Both footings are slightly undermined. Bedrock channel.Gravel bedrock channel. Footing is undermined considerably but may not pose a threat due to bedrock. Riprap exists on both abutment faces with poured concrete.Excessive contraction scour; footing exposure. Gravel channel bed; no defined main channel. Footings are undermined.No well defined channel. Abutments and pier footing exposed. Bedrock channel may limit problems from undermined pier footing and vertical abutments.L-abutment partially exposed. Gravel channel. Overtopping is significant at this site. R-overbank parallels channel upstream.3-bbl box culvert; concrete bottom; sharp meander U/S; U/S RB cut & incisingBoth banks and abutments well protected and concreted. Riprap has been poured in a spurdike fashion between upstream and downstream bridge.Cobbling exists on both abutments. Concrete slabs exist upstream on LB where sloughing has taken place. Bluff on R side.Riprap/stone revetment & concrete at abutments; banks undergoing localized mass wasting, but relatively stable.No protection on banks or abutments. L-bent has small insignificant amount of local scour.Protection exists on R-abutment. L-abutment not protected. Gravel channel. Concrete connecting caps barely visable at LB H-pile set. LFP constricted by road embankment. Old bridge abutments upstream approx 100'.No riprap at abutments or banks. Confluence upstream approx 400'. Confluence exists approx 200' upstream; both streams parallel road at the approach with road overtopping imminent. Floodplain widths at approach taken from main channel to the highway.2-bbl box culvert; concrete bottom; round-nosed web; fence & debris U/S; sharp meander U/SL abutment well protected. Local scour around setback piers; filled in with asphalt slabs. Limestone / sandstone outcrop on RB up to R abutment.Well defined local scour and contraction scour on setback. Riprap covering R abutment completely. Limestone outcrop evident at base of LB and L abutment. Upstream channel is well protected and at the bridge. Footing exposure on RB. Photos takenDual upstream channel divided by island. Bridge built w/o skew. Spurdike on LFP. Riprap on both abutments and on LB of R channel. Used combined upstream channel widths for total channel widths. Split FP between channels and shared equally.Small span with vertical abutments founded on bedrock which is evident at the channel bottom.Mass wasting on both banks; No protection. RFP is steep bluff.Footing exposure on both piers on main channel bent which is founded on bedrock. Some riprap at RB upstream and at bridge. Broken cobbles under R abutment and on LB.Maries River bridge is extremely well protected on both abutments and banks; cutbanks are low to moderate upstream and on LB. Downstream serves as mild control; sharp meander along outcrop near quarry. Photos taken.LB and abutment well protected. RB protected. High water mark vaguely visable approx 17' below low steel. Cobbling extends into channel. No signs of local scour.

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[mi2] [ft3/s] [ft3/s]L383 SCHOOL HOUSE BR RT B OSAGE 2 39 2.03 Q100 2620 1810 BC 10.7 8.2 L -- -- -- -- --N388 THIRD CR RT00D OSAGE 2 276 118 Q100 31000 31000 REG 19.5 19.4 L -- -- 12.8 -- 15.0N85 DOOLING CR MO100 OSAGE 2 138 9.03 Q100 5550 5550 REG 12.0 12.9 L -- -- 3.9 -- 12.2W351 LINN CR RT U OSAGE 2 25 0.55 Q100 921 719 BC 8.4 2.9 L -- -- -- -- --W466 FK BAILEYS CR RT0HH OSAGE 2 18 1.02 Q100 2850 2850 REG 22.1 -- -- -- -- -- -- --W467 BAILEYS CR RT0HH OSAGE 2 24 1.66 Q100 2030 1193 BC 12.0 1.4 L -- -- -- -- 24.4X484 DOOLINGS CR RT00K OSAGE 2 120 8.10 Q100 5300 5300 REG 11.1 4.6 L -- -- 5.5 -- 9.1Y198 TOWN CR RT00E OSAGE 2 35 2.54 Q100 2200 2200 REG 12.7 -- -- -- -- -- -- --A1041 CREEK US 65 PETTIS 1 22 0.95 Q100 765 765 REG 9.2 0.0 L -- -- -- -- --A2124 FLAT CR RT00U PETTIS 2 478 195 Q100 24900 24900 REG 12.6 14.1 L 8.3 -- 10.6 7.7 17.7A2663A&B MUDDY CR US050 PETTIS 2 289 124 Q100 15500 15500 REG 12.5 2.0 L -- 8.6 7.7 7.7 10.1A3040 MUDDY CR US065 PETTIS 2 375 207 Q100 23900 23900 REG 13.8 2.7 L 20.2 21.7 10.6 7.7 12.4A4476 FLAT CR MO052 PETTIS 2 130 20.8 Q100 5780 5780 REG 10.3 6.6 L -- -- 7.7 -- 11.3A4883 LAKE CR RT0DD PETTIS 2 62 48.1 Q100 13400 10645 BC 12.8 1.6 L 8.7 19.5 3.3 -- 16.3A809 MUDDY CR US065 PETTIS 2 375 206 Q100 23900 23900 REG 13.8 2.7 L 20.2 21.7 10.6 7.7 12.4P284 FLAT CR RT00W PETTIS 2 242 250 Q100 29500 21450 BC 17.3 3.2 L 11.4 -- 10.7 3.3 22.9S41 MUDDY CR MO127 PETTIS 2 192 97.0 Q100 13500 11950 BC 13.1 4.5 L 15.5 15.7 6.5 3.9 15.7W535 SEWER BR RT00H PETTIS 2 33 3.73 Q100 2470 2470 REG 14.1 -- -- -- -- -- -- --X222 FLAT CR RT00M PETTIS 2 298 199 Q100 26300 22618 EST 16.6 10.0 L 6.1 13.1 12.9 7.8 21.9X861 MUDDY CR RT00O PETTIS 2 197 238 Q100 23700 15075 BC 14.3 0.0 L -- 28.4 7.7 4.0 6.1


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[ft3/s] [ft3/s]-- Qimp 1000 1000 BC 7.5 7.5 L -- -- -- -- -- -- Y Y Y Y N N -- -- 3-bbl box culvert; concrete bottom

23.2 Q500 42700 42700 REG 21.8 22.6 L -- -- 12.8 -- 19.4 25.3 N P Y Y N M N -- R abutment has poured concrete over riprap. Medium size gravel channel. Flow does not get out onto LFP.10.5 Q500 7620 7620 REG 13.8 19.4 L -- -- 3.9 -- 15.6 14.2 N N N Y N M Y -- Mass wasting on LB. Significant debris on pier set. Extensive debris in middle of channel in approach. Riprap placed recently (in '93?). LB and abutment well protected.

-- Qimp 517 517 BC 6.9 2.8 L -- -- -- -- -- -- Y Y N N N N -- -- 2-bbl box culvert; concrete bottom-- Q500 4110 4110 REG 27.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Essentially a box culvert with well protected LB. Possible undercutting of abutments and upstream L-wall; however, not threatening. L cutbank is moderate. Photos taken.

27.7 Qimp 356 356 BC 5.8 2.0 L -- -- -- -- -- -- Y Y Y Y Y N -- -- Abutments are slightly undercut; however, they are founded on bedrock. No piers. Vertical abutments.10.3 Q500 7290 7290 REG 12.9 15.5 L -- -- 5.5 -- 13.6 14.2 N N N Y N M N -- Mass wasting on RB; some block cobbling on U/S RB. Confluence occures approx 1 bridge length U/S. Poured concrete on LB. No abutment protection.

-- Q500 2990 2990 REG 15.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Very small creek; protected upstream retaining wall (wingwall). This bridge resembles a hemispherical culvert with a 5' radius.-- Q500 1100 1100 REG 11.5 0.0 L -- -- -- -- -- -- -- -- -- -- -- -- -- -- Concrete lined channel U/S & D/S; box culvert with concrete bottom; No scour assessment

10.2 Q500 33100 33100 REG 14.3 15.7 L 12.4 -- 10.6 7.7 20.0 13.8 N N Y Y Y Y ? -- Concrete riprap on LB and abutment to approx 150 ft. upstream. Old dike exists approx 1 bridge length U/S. Holding ponds at Q500 depth on U/S LFP will limit flow to channel so channel widened to help carry flow. Channel along R edge of FP. Cutbanks noted on LB.15.0 Q500 20400 20400 REG 14.5 3.7 L -- 12.1 7.7 7.7 14.2 18.6 N N Y Y Y Y Y Y Dual bridges. Channel on L-edge of FP; Rock outcrop observed on U/S LB, adding coarse material to channel and possibly armoring. Concreted riprap on both abutments and on spurdike on RFP. Old scour holes filled with riprap.21.0 Q500 31600 31600 REG 16.0 6.9 L 24.0 25.5 10.6 7.8 16.7 23.0 N N N P Y Y N -- Riprap present on both abutments and banks. Dual bridge scenario. Channel on L edge of FP. Cutbanks and sloughing on both banks. RFP taken at 45 deg. 12.2 Q500 7680 7680 REG 12.2 14.5 L -- -- 7.7 -- 14.9 15.8 P P P Y Y Y N -- Riprap on L abutment only placed to arrest lateral migration. Gravel bars upstream and downstream and noted on banks. Road embankment lower slightly on LFP, but not enough to allow overtopping and given discharges.19.3 Qimp 7890 7890 BC 10.7 3.0 L 4.2 16.5 3.3 -- 12.2 15.2 Y Y N P N N -- -- Riprap on both banks; steep banks U/S & D/S but minimal cutbanks. Road overflow on RFP; No riprap on abutments. Silty gravel bars U/S & D/S.21.0 Q500 31600 31600 REG 16.0 5.3 L 25.0 26.5 10.6 7.8 16.7 23.0 N N N P Y Y N -- Riprap present on both abutments and banks. Dual bridge scenario. Channel on L edge of FP. Cutbanks and sloughing on both banks. RFP taken at 45 deg.

6.8 Qimp 13400 13400 BC 13.2 6.6 L 5.5 -- 10.6 3.3 19.3 -- Y N P Y Y M N -- Concrete on L abutment; concrete debris on LB. Rock ledge on RB and abutment. Large overflow area on LFP. Channel along R edge of FP at bluff.14.8 Qimp 10400 10400 BC 12.0 5.0 L 12.6 13.0 6.5 3.9 13.6 12.8 Y Y N Y Y M N -- Another bridge over minor tributary (joins approx 1000 ft. D/S) approx 1800 ft. on R-side. Concrete debris on both setbacks upstream of bridge, but substantial clear-water scour immediately under approach spans. Photos taken.

-- Q500 3340 3340 REG 16.9 -- -- -- -- -- -- -- -- Y Y Y N Y M N -- Founded on bedrock observed in channel U/S, D/S, and at bridge. Footing exposure at both abutments, but not a problem if socketted to bedrock. Riprap at ends on wingwalls on both U/S & D/S banks. Sign calls this "Little Cedar Creek"21.6 Q500 35100 30186 EST 18.5 12.7 L 10.1 16.6 12.9 7.8 23.7 23.3 N N N N Y M N -- Concrete on U/S face of R abutment. Concrete debris on LB. Relief bridge X404. Large amounts of woody debris; some slumps observed on banks, but not cutbanks. Relief bridge is well vegetated; U/S face of abutments cobbled.21.1 Qimp 6450 6450 BC 9.2 2.8 L -- 14.9 7.7 3.9 -- 13.5 Y N N Y Y M N -- Riprap on LB. No LFP or L setback; Cutbanks on LB both upstream and downstream channel edge along left edge of floodplain. Road overflow section on RFP. LB steep.


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3-bbl box culvert; concrete bottomR abutment has poured concrete over riprap. Medium size gravel channel. Flow does not get out onto LFP.Mass wasting on LB. Significant debris on pier set. Extensive debris in middle of channel in approach. Riprap placed recently (in '93?). LB and abutment well protected.2-bbl box culvert; concrete bottomEssentially a box culvert with well protected LB. Possible undercutting of abutments and upstream L-wall; however, not threatening. L cutbank is moderate. Photos taken.Abutments are slightly undercut; however, they are founded on bedrock. No piers. Vertical abutments.Mass wasting on RB; some block cobbling on U/S RB. Confluence occures approx 1 bridge length U/S. Poured concrete on LB. No abutment protection.Very small creek; protected upstream retaining wall (wingwall). This bridge resembles a hemispherical culvert with a 5' radius.Concrete lined channel U/S & D/S; box culvert with concrete bottom; No scour assessmentConcrete riprap on LB and abutment to approx 150 ft. upstream. Old dike exists approx 1 bridge length U/S. Holding ponds at Q500 depth on U/S LFP will limit flow to channel so channel widened to help carry flow. Channel along R edge of FP. Cutbanks noted on LB.Dual bridges. Channel on L-edge of FP; Rock outcrop observed on U/S LB, adding coarse material to channel and possibly armoring. Concreted riprap on both abutments and on spurdike on RFP. Old scour holes filled with riprap.Riprap present on both abutments and banks. Dual bridge scenario. Channel on L edge of FP. Cutbanks and sloughing on both banks. RFP taken at 45 deg. Riprap on L abutment only placed to arrest lateral migration. Gravel bars upstream and downstream and noted on banks. Road embankment lower slightly on LFP, but not enough to allow overtopping and given discharges.Riprap on both banks; steep banks U/S & D/S but minimal cutbanks. Road overflow on RFP; No riprap on abutments. Silty gravel bars U/S & D/S.Riprap present on both abutments and banks. Dual bridge scenario. Channel on L edge of FP. Cutbanks and sloughing on both banks. RFP taken at 45 deg. Concrete on L abutment; concrete debris on LB. Rock ledge on RB and abutment. Large overflow area on LFP. Channel along R edge of FP at bluff.Another bridge over minor tributary (joins approx 1000 ft. D/S) approx 1800 ft. on R-side. Concrete debris on both setbacks upstream of bridge, but substantial clear-water scour immediately under approach spans. Photos taken.Founded on bedrock observed in channel U/S, D/S, and at bridge. Footing exposure at both abutments, but not a problem if socketted to bedrock. Riprap at ends on wingwalls on both U/S & D/S banks. Sign calls this "Little Cedar Creek"Concrete on U/S face of R abutment. Concrete debris on LB. Relief bridge X404. Large amounts of woody debris; some slumps observed on banks, but not cutbanks. Relief bridge is well vegetated; U/S face of abutments cobbled.Riprap on LB. No LFP or L setback; Cutbanks on LB both upstream and downstream channel edge along left edge of floodplain. Road overflow section on RFP. LB steep.


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AT10


document.xls

District 05

3-bbl box culvert; concrete bottomR abutment has poured concrete over riprap. Medium size gravel channel. Flow does not get out onto LFP.Mass wasting on LB. Significant debris on pier set. Extensive debris in middle of channel in approach. Riprap placed recently (in '93?). LB and abutment well protected.2-bbl box culvert; concrete bottomEssentially a box culvert with well protected LB. Possible undercutting of abutments and upstream L-wall; however, not threatening. L cutbank is moderate. Photos taken.Abutments are slightly undercut; however, they are founded on bedrock. No piers. Vertical abutments.Mass wasting on RB; some block cobbling on U/S RB. Confluence occures approx 1 bridge length U/S. Poured concrete on LB. No abutment protection.Very small creek; protected upstream retaining wall (wingwall). This bridge resembles a hemispherical culvert with a 5' radius.Concrete lined channel U/S & D/S; box culvert with concrete bottom; No scour assessmentConcrete riprap on LB and abutment to approx 150 ft. upstream. Old dike exists approx 1 bridge length U/S. Holding ponds at Q500 depth on U/S LFP will limit flow to channel so channel widened to help carry flow. Channel along R edge of FP. Cutbanks noted on LB.Dual bridges. Channel on L-edge of FP; Rock outcrop observed on U/S LB, adding coarse material to channel and possibly armoring. Concreted riprap on both abutments and on spurdike on RFP. Old scour holes filled with riprap.Riprap present on both abutments and banks. Dual bridge scenario. Channel on L edge of FP. Cutbanks and sloughing on both banks. RFP taken at 45 deg. Riprap on L abutment only placed to arrest lateral migration. Gravel bars upstream and downstream and noted on banks. Road embankment lower slightly on LFP, but not enough to allow overtopping and given discharges.Riprap on both banks; steep banks U/S & D/S but minimal cutbanks. Road overflow on RFP; No riprap on abutments. Silty gravel bars U/S & D/S.Riprap present on both abutments and banks. Dual bridge scenario. Channel on L edge of FP. Cutbanks and sloughing on both banks. RFP taken at 45 deg. Concrete on L abutment; concrete debris on LB. Rock ledge on RB and abutment. Large overflow area on LFP. Channel along R edge of FP at bluff.Another bridge over minor tributary (joins approx 1000 ft. D/S) approx 1800 ft. on R-side. Concrete debris on both setbacks upstream of bridge, but substantial clear-water scour immediately under approach spans. Photos taken.Founded on bedrock observed in channel U/S, D/S, and at bridge. Footing exposure at both abutments, but not a problem if socketted to bedrock. Riprap at ends on wingwalls on both U/S & D/S banks. Sign calls this "Little Cedar Creek"Concrete on U/S face of R abutment. Concrete debris on LB. Relief bridge X404. Large amounts of woody debris; some slumps observed on banks, but not cutbanks. Relief bridge is well vegetated; U/S face of abutments cobbled.Riprap on LB. No LFP or L setback; Cutbanks on LB both upstream and downstream channel edge along left edge of floodplain. Road overflow section on RFP. LB steep.

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document.xls

District 06



TypeTotal

MethodMain channel

OverbankLeft



A273 BOEUF CR RT00C FRANKLIN 2 281 131 Q100 23100 23100 REG 18.6 7.3 L 21.2 -- 8.8 7.8 22.5A3871 MERAMEC RI & RD RT00K FRANKLIN 2 606 1740 Q100 115000 115000 REG 24.6 8.1 L 19.8 -- 7.9 3.3 26.7A4162 BOURBEUSE RI RT0CC FRANKLIN 2 411 607 Q100 51800 51800 REG 19.3 -- -- -- -- -- -- --A4189 RED OAK CR RT0AN FRANKLIN 2 232 60.6 Q100 16500 14550 BC 13.4 7.6 L 15.1 21.4 7.7 3.3 19.9A4229 BOEUF CR RT00Y FRANKLIN 2 246 109 Q100 21300 21300 REG 15.8 14.4 L 14.2 15.1 7.8 -- 22.2A4676 BRUSH CR RT N FRANKLIN 2 49 5.68 Q100 3750 3750 REG 17.6 13.7 L -- -- -- -- --J960 L BOEUF CR MO100 FRANKLIN 2 138 5.34 Q100 3670 3670 REG 9.7 14.8 L 13.3 5.0 11.0 -- 16.5K154 BIG BERGER CR MO100 FRANKLIN 2 206 50.1 Q100 13100 13100 REG 14.9 6.5 L -- 16.8 10.6 -- 19.8N819 BIG BERGER CR RT0VV FRANKLIN 2 163 44.4 Q100 13800 13800 REG 15.6 19.9 L -- 23.1 7.8 -- 21.8N854 ST JOHNS CR RT0AJ FRANKLIN 2 243 31.8 Q100 11700 9145 BC 13.4 5.0 L 11.6 -- 10.5 -- 20.5Z547 BOONE CR RT00H FRANKLIN 2 63 27.3 Q100 9660 9660 REG 21.7 -- -- -- -- -- -- --A2222A&B PLATTIN CR IS055 JEFFERSON 2 232 2.37 Q100 2950 2950 REG 4.9 -- -- -- -- -- -- --A2569 DRY CR RT00Y JEFFERSON 2 101 0.15 Q100 303 303 REG 2.0 0.0 L -- -- 7.4 -- 2.3A2895 BIG RI RT00W JEFFERSON 2 602 930 Q100 67200 67200 REG 18.3 4.6 L 14.6 14.5 7.8 3.3 26.9A2898 JOACHIM CR RT00A JEFFERSON 2 279 108 Q100 26600 26600 REG 16.3 -- -- -- -- -- -- --A2958 ROCK CR MO021 JEFFERSON 2 277 6.74 Q100 6970 6970 REG 7.3 -- -- -- -- -- -- --A2959 ROCK CR MO021 JEFFERSON 2 291 6.74 Q100 6970 6970 REG 7.1 -- -- -- -- -- -- --A3104 BIG RI MO030 JEFFERSON 2 606 892 Q100 68100 68100 REG 18.0 -- -- -- -- -- -- --A3616 JOACHIM CR & RR MO110 JEFFERSON 2 443 49.3 Q100 18200 18200 REG 9.8 -- -- -- -- -- -- --A4588 ROCK CR US061 JEFFERSON 2 219 24.6 Q100 22300 22300 REG 16.9 -- -- -- -- -- -- --A503A&B ROCK CR IS055 JEFFERSON 2 199 18.8 Q100 17900 17900 REG 15.7 -- -- -- -- -- -- --A945A&B JOACHIM CR IS055 JEFFERSON 2 405 165 Q100 96300 96300 REG 28.2 -- -- -- -- -- -- --G916 HEADS CR RT0MM JEFFERSON 2 128 24.4 Q100 20100 16800 BC 19.7 4.6 L -- -- 12.7 21.1 29.8J610 PLATTIN CR US061 JEFFERSON 2 284 83.6 Q100 55100 55100 REG 25.0 -- -- -- -- -- -- --K135 ROCK CR RT00K JEFFERSON 2 135 25.0 Q100 22600 15375 BC 19.8 12.5 L -- 28.7 7.8 4.0 22.6K294 JOACHIM CR US061 JEFFERSON 2 281 167 Q100 97500 97500 REG 35.4 -- -- -- -- -- -- --K598 SANDY CR MO021 JEFFERSON 2 158 9.70 Q100 9370 9370 REG 13.2 14.2 L 10.8 7.7 7.7 -- 20.6R120 BIG RI RT00B JEFFERSON 2 714 845 Q100 67200 67200 REG 16.2 -- -- -- -- -- -- --R486 SANDY CR RT0BB JEFFERSON 2 129 14.7 Q100 11300 9425 BC 14.2 4.8 L 9.0 7.6 7.7 -- 20.8A2091 BELLEAU CR OR070 ST CHARLES 1 126 5.45 Q100 5860 5860 REG 11.4 0.0 L 24.9 -- 7.6 -- 19.6A2314 PERUQUE CR RT00Z ST CHARLES 1 243 35.2 Q100 27100 19250 BC 18.1 11.4 L 27.0 -- 7.7 -- 25.6A2695 DARDENNE CR RT00C ST CHARLES 1 209 101 Q100 55000 40450 BC 26.2 5.7 L 40.6 36.7 7.8 -- 28.1A3877 PERUQUE CR MO00P ST CHARLES 1 232 71.5 Q100 48500 34300 BC 22.1 0.0 L 36.5 35.2 7.8 -- 30.2A4838 DARDENNE CR RT00N ST CHARLES 1 218 80.2 Q100 53300 53300 REG 29.9 -- -- -- -- -- -- --A873 DARDENNE CR RT00B ST CHARLES 1 247 153 Q100 90600 51500 BC 27.2 0.0 L -- -- -- -- --G3361 DARDENNE CR IS070 ST CHARLES 1 214 101 Q100 55200 37800 BC 26.1 4.2 L 49.9 48.4 8.7 -- 31.7L15 DARDENNE CR RT00K ST CHARLES 1 183 59.9 Q100 41900 41900 REG 28.8 -- -- -- -- -- -- --L481 DARDENNE CR IS070 ST CHARLES 1 214 101 Q100 55200 37800 BC 26.1 4.2 L 49.9 48.4 8.7 -- 31.7L503 HOSTETTER CR MO079 ST CHARLES 1 118 0.25 Q100 863 863 REG 5.1 5.7 L 3.5 -- 6.3 -- 9.2L711 BELLEAU CR IS070 ST CHARLES 1 102 5.81 Q100 6180 6180 REG 13.4 11.9 L 22.2 -- 7.7 -- 11.5R94 SPENCER CR OR070 ST CHARLES 1 101 7.20 Q100 7360 7360 REG 14.4 -- -- -- -- -- -- --T401 SEHRT CR MO094 ST CHARLES 2 82 2.67 Q100 2870 2870 REG 9.3 13.0 L -- 12.0 3.9 -- 20.0A1072 COLDWATER CR US067 ST LOUIS 1 211 22.2 Q100 20500 20500 REG 17.1 -- -- -- -- -- -- --A1074 COLDWATER CR US067 ST LOUIS 1 222 36.2 Q100 30600 30600 REG 21.2 -- -- -- -- -- -- --A1109 MALINE CR RT0AC ST LOUIS 1 149 13.9 Q100 13900 13900 REG 16.7 -- -- -- -- -- -- --



Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]


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J6


M6


C7


D7


E7


G7


P10


document.xls

District 06


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right

RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes12.4 Q500 31100 31100 REG 21.6 9.7 L 27.7 -- 8.8 7.8 25.2 18.2 P N N Y Y! Y Y Y R side on bedrock bluff. L abutment protected w/ riprap & spur dike. Large contraction/abutment scour hole U/S of dike & through setback, causing wider channel at bridge. Very large material moved by scour. Along R edge of FP. Photos taken.14.0 Q500 154000 154000 REG 29.4 10.6 L 25.2 -- 7.9 3.3 31.0 21.1 N P N Y Y Y Y -- Rock outcrop on R side; along R edge of FP. L abutment covered with riprap. Large contraction/abutment scour hole on L setback, pile bent exposure. In flood.

-- Q500 68800 68800 REG 22.8 -- -- -- -- -- -- -- -- P P N Y Y Y Y -- Rock outcrop on U/S LB. Well protected abutments & embankments. Overflow sections on both FPs. On bend in channel. Contraction scour on L setback. Possible pier scour, but piers well designed. In flood.21.2 Qimp 12600 12600 BC 12.0 8.7 L 12.3 19.6 7.7 3.3 17.9 20.0 Y P N Y Y N -- -- Just U/S of confluence w/ Bourbeuse river--in backwater. Shallow channel, unprotected abutments. Some riprap on R setback to fill contraction scour hole there. Partial levee on D/S LB, being cut into by channel. Overflow section on RFP.20.1 Q500 28700 28700 REG 18.4 16.7 L 18.6 19.5 7.8 -- 24.5 22.4 P Y N Y Y Y ? -- Riprap on both abutments & embankment faces. Gravel bars in D/S channel. Debris lodged on low steel; large log under bridge on R setback. Contraction scour on R setback. Shallow channel. Potential overflow on RFP. Cutbanks on D/S RB & U/S LB.

-- Q500 5120 5120 REG 21.2 17.9 L -- -- -- -- -- -- N N N N N Y N -- 3-bbl box culvert; concrete bottom; concrete on U/S LB at meander11.7 Q500 5010 5010 REG 10.0 15.2 L 16.6 7.6 11.1 -- 17.0 12.2 N P N Y Y N -- -- Near MO River--probably subject to backwater. Built w/o skew, channel approaches at 25 deg. Home on raised FP on U/S RFP. Local & contraction scour on both setbacks. Cutbanks on U/S RB & D/S LB.19.7 Q500 17700 17700 REG 16.9 8.4 L -- 21.2 10.7 -- 21.6 21.5 N P N Y Y Y ? -- Heavy riprap & cobbling on LB & abutment into channel. Concreted riprap on R abutment & both embankment faces. On L edge of FP. Contraction/abutment scour on R setback. Located on bend in channel.21.0 Q500 18800 18800 REG 18.3 24.3 L -- 29.9 7.8 -- 24.2 23.4 P P N Y Y Y N -- Riprap on both abutment faces, due to slumping abutments. Blowhole at bridge. Cutbanks on U/S banks & D/S RB.

5.0 Qimp 6590 6590 BC 11.0 7.0 L 7.3 -- 10.4 -- 17.4 -- Y N P Y Y Y ? -- Rock outcrop on R side. LB & abutment covered w/ riprap. U/S face of L embankment also partially covered. In mild flood.-- Q500 13100 13100 REG 26.0 -- -- -- -- -- -- -- -- P P Y Y Y Y N -- Founded on BEDROCK! Vertical abutments with flared WWs, riprap on all WWs. Pier appears to have been struck and damaged; new widened base poured. Photos taken.-- Q500 4170 4170 REG 6.0 -- -- -- -- -- -- -- -- N P P Y Y Y Y -- Well protected with riprap on both abutments, LB and L setback. Minor cutbank on D/S RB due to bend in channel. Minor contraction & local scour on R setback. Flagged due to pier scour & cutbank--not deemed to be a problem.

2.3 Q500 400 400 REG 2.4 0.0 L -- -- 7.4 -- 3.9 3.9 Y P Y Y Y -- Large riprap on both abutments. Large cobbles in channel. Along R edge of FP. Tops of footings on L bent exposed, but surrounded by large rock.26.7 Q500 89200 89200 REG 21.2 5.3 L 17.4 17.2 7.8 3.3 29.5 29.3 P P N Y Y Y Y Y Riprap on both abutments; spurdike on L side. Contraction scour on both setbacks. Local scour at bents on L setback; top of footing exposed at one bent. Potential overflow on LFP. Drum deposited on spurdike.

-- Q500 36400 36400 REG 19.7 -- -- -- -- -- -- -- -- N N Y P N N Y -- Very large riprap on abutments & U/S embankment faces. High bridge across valley near RR overpass. Gravel & cobble channel. Minor contraction scour on setbacks; some bank instability noticed on U/S RB & D/S LB.-- Q500 10100 10100 REG 9.1 -- -- -- -- -- -- -- -- N N P Y Y Y Y -- Well protected with riprap on L abutment; rock outcrop on R side. Flagged due to pier scour & cutbank--both confirmed, but not deemed a problem. High road embankment across a valley.-- Q500 10100 10100 REG 8.9 -- -- -- -- -- -- -- -- N N P Y Y Y Y -- Well protected with riprap on L abutment; rock outcrop on R side. Flagged due to pier scour & cutbank--both confirmed, but not deemed a problem. High road embankment across a valley.-- Q500 90600 90600 REG 21.3 -- -- -- -- -- -- -- -- N N N P Y Y ? -- Dual bridge w/ A4629 (U/S). Both well protected; A3104 concreted riprap on abutments, A4629 large riprap on abutments & U/S embankment faces. Minor local & contraction scour on setbacks. Flagged due to unknown pier scour--piers designed to resist scour.-- Q500 25100 25100 REG 11.9 -- -- -- -- -- -- -- -- N N Y Y Y Y Y -- Designed for RR, creek is secondary. Concrete pad on L abutment, bedrock outcrop on R side. Large cobbles & gravel in channel. Flagged due to mass wasting on LB--not deemed a problem at a site of this size.-- Q500 34800 34800 REG 22.1 -- -- -- -- -- -- -- -- P P Y Y Y Y Y -- Very well protected with riprap on abutments, embankments faces, setbacks, & U/S & D/S LBs. Fallen or falling trees U/S indicate shifting channel, but will be controlled by riprap through bridge.-- Q500 27600 27600 REG 20.4 -- -- -- -- -- -- -- -- N P P Y Y Y ? -- Well protected with riprap on abutments & U/S embankment faces. Channelized & lined with concreted riprap on RB through a bend U/S & through bridge. Concrete getting undermined, but underlain with riprap.-- Q500 155000 155000 REG 37.5 -- -- -- -- -- -- -- -- N N P P ? Y N -- Riprap on upper abutment faces for slope stabilization. Tall bridges across deep valley, rock bluff on R side. Flagged due to unknown pier scour--in backwater, so unable to determine further.

26.0 Qimp 13500 13500 BC 17.3 5.3 L -- -- 12.7 21.1 24.0 19.0 Y N P Y Y Y ? -- Immediately D/S of low-water crossing. Built with 45 deg skew, channel approaches perpendicularly. Rock outcrop & bluff on R side. Overflow section on LFP. Concreted riprap on L abutments; undermined. L bent footings exposed & undermined. Photos taken-- Q500 86700 86700 REG 32.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A5117

26.1 Qimp 8150 8150 BC 13.5 13.2 L -- 17.1 7.7 3.9 14.4 20.5 Y Y N Y Y Y N -- Concreted riprap on both abutment faces. Contraction scour on R setback. Cutbank on LB U/S to D/S through bridge, cutting into abutment.-- Q500 157000 157000 REG 47.1 -- -- -- -- -- -- -- -- Y Y N Y ? Y N -- Inlaid cobbling on abutments. Flagged due to unknown pier scour--in backwater, so unable to determine further. Meander bend D/S.

20.4 Q500 13800 13800 REG 15.5 16.2 L 15.5 12.5 7.8 -- 22.7 22.5 N P P Y Y Y ? -- Riprap & concreted riprap on abutments. Blowhole under bridge. Secondary channel on R setback formed by large sandbar & contraction scour on setback. Large debris pille on L bent. Cutbanks on both U/S banks.-- Q500 89500 89500 REG 19.2 -- -- -- -- -- -- -- -- Y N Y Y Y Y ? -- Riprap on both abutments. Riprap dike under bridge on L setback resistant to scour. Minor contraction/local scour on R setback. Steep banks on both sides, but not deemed a problem at a bridge this size. Overflow section on RFP.

21.2 Qimp 7550 7550 BC 12.4 7.1 L 6.7 5.8 7.7 -- 19.3 19.7 Y Y N Y Y Y N -- Large riprap on L abutment to stop cutbank on U/S LB. Sandbars in U/S channel, gravel bars in D/S channel. Along L edge of FP.10.5 Q500 8460 8460 REG 14.2 0.0 L 33.3 -- 7.7 -- 22.1 16.1 N P N Y Y Y N -- D/S of L711 which will control flow. L711 is unskewed, A2091 is skewed approx 20 deg. Flow bends to D/S RB, but LB at bridge & D/S is protected with concreted riprap.

8.5 Qimp 11400 11400 BC 13.5 14.7 L 18.6 -- 7.7 -- 21.5 -- Y N N Y N Y N -- Along R edge of FP. Gravel bars in D/S channel. Minor riprap on L abutment. Overflow section on LFP. Rock outcrop on U/S RB.10.6 Qimp 25900 25900 BC 20.0 12.1 L 26.0 22.6 7.7 -- 22.6 -- Y Y N Y Y Y ? -- Concreted riprap on L&R abutments & embankment faces. Levees on U/S & D/S RB & U/S & D/S LFP. Woody & concrete debris in U/S & D/S channels. Gage on U/S face on R setback.30.5 Qimp 20100 20100 BC 16.0 7.1 L 25.2 24.0 7.7 -- 24.8 25.1 Y P N Y Y Y Y -- Riprap on abutments & both embankment faces. Riprap cobbles in channel at bridge. Local scour at both piers. Bank instability noted on all U/S & D/S banks. Trees across channel D/S. Some riprap on setbacks. U/S flow controlled by Lake St. Louis.

-- Q500 83700 83700 REG 39.3 -- -- -- -- -- -- -- -- P P N P Y Y Y -- Well protected with riprap aprons on abutments & both embankment faces; piers designed for scour. Partial levees on both U/S banks will direct flow through bridge. Potential overflow sections on both FPs. Flagged due to mass wasting--not deemed a problem-- Qimp 12400 12400 BC 11.5 0.0 L -- -- 7.6 -- -- -- Y P N N Y N -- -- On edge of MI river--will certainly backwater. Yimp = RFP elev, Qimp substantially less than Q100. Therefore, due to MI river FP, no other Q calculated.

11.5 Qimp 20400 20400 BC 18.0 12.6 L 29.2 27.9 8.7 -- 24.6 -- Y Y N Y Y Y N -- Riprap on abutments & U/S embankment faces; some in channel. Highly channelized but starting to shift. Contraction scour on L setback. Embankment on U/S RFP.-- Q500 65300 65300 REG 37.6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In process of being replaced. Raised road & longer span under construction.

11.5 Qimp 20400 20400 BC 18.0 12.6 L 29.2 27.9 8.7 -- 24.6 -- Y Y N Y Y Y N -- Riprap on abutments & U/S embankment faces; some in channel. Highly channelized but starting to shift. Contraction scour on L setback. Embankment on U/S RFP.5.2 Q500 1180 1180 REG 5.8 7.1 L 5.7 -- 6.3 -- 11.4 7.8 N N N Y Y N -- -- On edge of MI river FP--most likely subject to backwater. Q's seem really low. Contraction scour on L setback. Cutbank on D/S RB. FPs are leveed.

19.9 Q500 8940 8940 REG 16.1 18.8 L 30.1 -- 7.7 -- 16.5 22.3 N P N Y Y N -- -- Channel bends from U/S RFP; large cutbank U/S LB; recoils to cutbank on RB at bridge at pier; bends to D/S RB--D/S LB covered with concreted riprap at D/S bridge A2091. Gravel in channel--not sure if small riprap or natural. LB pier shows signs of scour.-- Q500 10700 10700 REG 18.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced by all new bridges--one continuous bridge from north to south outer road including I-70

15.4 Q500 3980 3980 REG 11.3 15.2 L -- 16.6 3.9 -- 21.8 19.3 P Y N Y Y N -- -- Large meander immediately U/S of bridge; flow impinging on R embankment. Potential overflow section on RFP. Along L edge of FP-- Q500 31800 31800 REG 22.3 -- -- -- -- -- -- -- -- P P P Y Y Y ? -- Heavy-duty riprap on both banks & abutments; some in channel as well. Mild meander bends with cutbanks U/S, but no immediate threat to bridge.-- Q500 48300 48300 REG 27.9 -- -- -- -- -- -- -- -- N P Y Y Y Y ? -- Moderately well protected with riprap & concrete debris. 3 cylinder pier bents. Buried riprap? U/S & D/S banks intermittently covered with rock & concrete debris, directing flow away from abutments. Channel appears shifted to L, large cobbles in channel-- Q500 21300 21300 REG 21.6 -- -- -- -- -- -- -- -- N N P Y Y Y N -- Riprap on both banks at bridge. No appreciable setbacks. Riprap on U/S RB will act as quidebank. Large cutbank on U/S RB & D/S LB. Channel widened under bridge, but lined with cobbles & concrete debris.




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]


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W6


Z6


AC10


document.xls

District 06

Comment codes:

NotesR side on bedrock bluff. L abutment protected w/ riprap & spur dike. Large contraction/abutment scour hole U/S of dike & through setback, causing wider channel at bridge. Very large material moved by scour. Along R edge of FP. Photos taken.Rock outcrop on R side; along R edge of FP. L abutment covered with riprap. Large contraction/abutment scour hole on L setback, pile bent exposure. In flood.Rock outcrop on U/S LB. Well protected abutments & embankments. Overflow sections on both FPs. On bend in channel. Contraction scour on L setback. Possible pier scour, but piers well designed. In flood.Just U/S of confluence w/ Bourbeuse river--in backwater. Shallow channel, unprotected abutments. Some riprap on R setback to fill contraction scour hole there. Partial levee on D/S LB, being cut into by channel. Overflow section on RFP.Riprap on both abutments & embankment faces. Gravel bars in D/S channel. Debris lodged on low steel; large log under bridge on R setback. Contraction scour on R setback. Shallow channel. Potential overflow on RFP. Cutbanks on D/S RB & U/S LB.3-bbl box culvert; concrete bottom; concrete on U/S LB at meanderNear MO River--probably subject to backwater. Built w/o skew, channel approaches at 25 deg. Home on raised FP on U/S RFP. Local & contraction scour on both setbacks. Cutbanks on U/S RB & D/S LB.Heavy riprap & cobbling on LB & abutment into channel. Concreted riprap on R abutment & both embankment faces. On L edge of FP. Contraction/abutment scour on R setback. Located on bend in channel.Riprap on both abutment faces, due to slumping abutments. Blowhole at bridge. Cutbanks on U/S banks & D/S RB.Rock outcrop on R side. LB & abutment covered w/ riprap. U/S face of L embankment also partially covered. In mild flood.Founded on BEDROCK! Vertical abutments with flared WWs, riprap on all WWs. Pier appears to have been struck and damaged; new widened base poured. Photos taken.Well protected with riprap on both abutments, LB and L setback. Minor cutbank on D/S RB due to bend in channel. Minor contraction & local scour on R setback. Flagged due to pier scour & cutbank--not deemed to be a problem.Large riprap on both abutments. Large cobbles in channel. Along R edge of FP. Tops of footings on L bent exposed, but surrounded by large rock.Riprap on both abutments; spurdike on L side. Contraction scour on both setbacks. Local scour at bents on L setback; top of footing exposed at one bent. Potential overflow on LFP. Drum deposited on spurdike.Very large riprap on abutments & U/S embankment faces. High bridge across valley near RR overpass. Gravel & cobble channel. Minor contraction scour on setbacks; some bank instability noticed on U/S RB & D/S LB.Well protected with riprap on L abutment; rock outcrop on R side. Flagged due to pier scour & cutbank--both confirmed, but not deemed a problem. High road embankment across a valley.Well protected with riprap on L abutment; rock outcrop on R side. Flagged due to pier scour & cutbank--both confirmed, but not deemed a problem. High road embankment across a valley.Dual bridge w/ A4629 (U/S). Both well protected; A3104 concreted riprap on abutments, A4629 large riprap on abutments & U/S embankment faces. Minor local & contraction scour on setbacks. Flagged due to unknown pier scour--piers designed to resist scour.Designed for RR, creek is secondary. Concrete pad on L abutment, bedrock outcrop on R side. Large cobbles & gravel in channel. Flagged due to mass wasting on LB--not deemed a problem at a site of this size.Very well protected with riprap on abutments, embankments faces, setbacks, & U/S & D/S LBs. Fallen or falling trees U/S indicate shifting channel, but will be controlled by riprap through bridge.Well protected with riprap on abutments & U/S embankment faces. Channelized & lined with concreted riprap on RB through a bend U/S & through bridge. Concrete getting undermined, but underlain with riprap.Riprap on upper abutment faces for slope stabilization. Tall bridges across deep valley, rock bluff on R side. Flagged due to unknown pier scour--in backwater, so unable to determine further.Immediately D/S of low-water crossing. Built with 45 deg skew, channel approaches perpendicularly. Rock outcrop & bluff on R side. Overflow section on LFP. Concreted riprap on L abutments; undermined. L bent footings exposed & undermined. Photos takenReplaced with A5117Concreted riprap on both abutment faces. Contraction scour on R setback. Cutbank on LB U/S to D/S through bridge, cutting into abutment.Inlaid cobbling on abutments. Flagged due to unknown pier scour--in backwater, so unable to determine further. Meander bend D/S.Riprap & concreted riprap on abutments. Blowhole under bridge. Secondary channel on R setback formed by large sandbar & contraction scour on setback. Large debris pille on L bent. Cutbanks on both U/S banks.Riprap on both abutments. Riprap dike under bridge on L setback resistant to scour. Minor contraction/local scour on R setback. Steep banks on both sides, but not deemed a problem at a bridge this size. Overflow section on RFP.Large riprap on L abutment to stop cutbank on U/S LB. Sandbars in U/S channel, gravel bars in D/S channel. Along L edge of FP.D/S of L711 which will control flow. L711 is unskewed, A2091 is skewed approx 20 deg. Flow bends to D/S RB, but LB at bridge & D/S is protected with concreted riprap.Along R edge of FP. Gravel bars in D/S channel. Minor riprap on L abutment. Overflow section on LFP. Rock outcrop on U/S RB.Concreted riprap on L&R abutments & embankment faces. Levees on U/S & D/S RB & U/S & D/S LFP. Woody & concrete debris in U/S & D/S channels. Gage on U/S face on R setback.Riprap on abutments & both embankment faces. Riprap cobbles in channel at bridge. Local scour at both piers. Bank instability noted on all U/S & D/S banks. Trees across channel D/S. Some riprap on setbacks. U/S flow controlled by Lake St. Louis.Well protected with riprap aprons on abutments & both embankment faces; piers designed for scour. Partial levees on both U/S banks will direct flow through bridge. Potential overflow sections on both FPs. Flagged due to mass wasting--not deemed a problemOn edge of MI river--will certainly backwater. Yimp = RFP elev, Qimp substantially less than Q100. Therefore, due to MI river FP, no other Q calculated.Riprap on abutments & U/S embankment faces; some in channel. Highly channelized but starting to shift. Contraction scour on L setback. Embankment on U/S RFP.In process of being replaced. Raised road & longer span under construction.Riprap on abutments & U/S embankment faces; some in channel. Highly channelized but starting to shift. Contraction scour on L setback. Embankment on U/S RFP.On edge of MI river FP--most likely subject to backwater. Q's seem really low. Contraction scour on L setback. Cutbank on D/S RB. FPs are leveed.Channel bends from U/S RFP; large cutbank U/S LB; recoils to cutbank on RB at bridge at pier; bends to D/S RB--D/S LB covered with concreted riprap at D/S bridge A2091. Gravel in channel--not sure if small riprap or natural. LB pier shows signs of scour.Replaced by all new bridges--one continuous bridge from north to south outer road including I-70Large meander immediately U/S of bridge; flow impinging on R embankment. Potential overflow section on RFP. Along L edge of FPHeavy-duty riprap on both banks & abutments; some in channel as well. Mild meander bends with cutbanks U/S, but no immediate threat to bridge.Moderately well protected with riprap & concrete debris. 3 cylinder pier bents. Buried riprap? U/S & D/S banks intermittently covered with rock & concrete debris, directing flow away from abutments. Channel appears shifted to L, large cobbles in channelRiprap on both banks at bridge. No appreciable setbacks. Riprap on U/S RB will act as quidebank. Large cutbank on U/S RB & D/S LB. Channel widened under bridge, but lined with cobbles & concrete debris.



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AT10


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District 06

R side on bedrock bluff. L abutment protected w/ riprap & spur dike. Large contraction/abutment scour hole U/S of dike & through setback, causing wider channel at bridge. Very large material moved by scour. Along R edge of FP. Photos taken.Rock outcrop on R side; along R edge of FP. L abutment covered with riprap. Large contraction/abutment scour hole on L setback, pile bent exposure. In flood.Rock outcrop on U/S LB. Well protected abutments & embankments. Overflow sections on both FPs. On bend in channel. Contraction scour on L setback. Possible pier scour, but piers well designed. In flood.Just U/S of confluence w/ Bourbeuse river--in backwater. Shallow channel, unprotected abutments. Some riprap on R setback to fill contraction scour hole there. Partial levee on D/S LB, being cut into by channel. Overflow section on RFP.Riprap on both abutments & embankment faces. Gravel bars in D/S channel. Debris lodged on low steel; large log under bridge on R setback. Contraction scour on R setback. Shallow channel. Potential overflow on RFP. Cutbanks on D/S RB & U/S LB.3-bbl box culvert; concrete bottom; concrete on U/S LB at meanderNear MO River--probably subject to backwater. Built w/o skew, channel approaches at 25 deg. Home on raised FP on U/S RFP. Local & contraction scour on both setbacks. Cutbanks on U/S RB & D/S LB.Heavy riprap & cobbling on LB & abutment into channel. Concreted riprap on R abutment & both embankment faces. On L edge of FP. Contraction/abutment scour on R setback. Located on bend in channel.Riprap on both abutment faces, due to slumping abutments. Blowhole at bridge. Cutbanks on U/S banks & D/S RB.Rock outcrop on R side. LB & abutment covered w/ riprap. U/S face of L embankment also partially covered. In mild flood.Founded on BEDROCK! Vertical abutments with flared WWs, riprap on all WWs. Pier appears to have been struck and damaged; new widened base poured. Photos taken.Well protected with riprap on both abutments, LB and L setback. Minor cutbank on D/S RB due to bend in channel. Minor contraction & local scour on R setback. Flagged due to pier scour & cutbank--not deemed to be a problem.Large riprap on both abutments. Large cobbles in channel. Along R edge of FP. Tops of footings on L bent exposed, but surrounded by large rock.Riprap on both abutments; spurdike on L side. Contraction scour on both setbacks. Local scour at bents on L setback; top of footing exposed at one bent. Potential overflow on LFP. Drum deposited on spurdike.Very large riprap on abutments & U/S embankment faces. High bridge across valley near RR overpass. Gravel & cobble channel. Minor contraction scour on setbacks; some bank instability noticed on U/S RB & D/S LB.Well protected with riprap on L abutment; rock outcrop on R side. Flagged due to pier scour & cutbank--both confirmed, but not deemed a problem. High road embankment across a valley.Well protected with riprap on L abutment; rock outcrop on R side. Flagged due to pier scour & cutbank--both confirmed, but not deemed a problem. High road embankment across a valley.Dual bridge w/ A4629 (U/S). Both well protected; A3104 concreted riprap on abutments, A4629 large riprap on abutments & U/S embankment faces. Minor local & contraction scour on setbacks. Flagged due to unknown pier scour--piers designed to resist scour.Designed for RR, creek is secondary. Concrete pad on L abutment, bedrock outcrop on R side. Large cobbles & gravel in channel. Flagged due to mass wasting on LB--not deemed a problem at a site of this size.Very well protected with riprap on abutments, embankments faces, setbacks, & U/S & D/S LBs. Fallen or falling trees U/S indicate shifting channel, but will be controlled by riprap through bridge.Well protected with riprap on abutments & U/S embankment faces. Channelized & lined with concreted riprap on RB through a bend U/S & through bridge. Concrete getting undermined, but underlain with riprap.Riprap on upper abutment faces for slope stabilization. Tall bridges across deep valley, rock bluff on R side. Flagged due to unknown pier scour--in backwater, so unable to determine further.Immediately D/S of low-water crossing. Built with 45 deg skew, channel approaches perpendicularly. Rock outcrop & bluff on R side. Overflow section on LFP. Concreted riprap on L abutments; undermined. L bent footings exposed & undermined. Photos takenReplaced with A5117Concreted riprap on both abutment faces. Contraction scour on R setback. Cutbank on LB U/S to D/S through bridge, cutting into abutment.Inlaid cobbling on abutments. Flagged due to unknown pier scour--in backwater, so unable to determine further. Meander bend D/S.Riprap & concreted riprap on abutments. Blowhole under bridge. Secondary channel on R setback formed by large sandbar & contraction scour on setback. Large debris pille on L bent. Cutbanks on both U/S banks.Riprap on both abutments. Riprap dike under bridge on L setback resistant to scour. Minor contraction/local scour on R setback. Steep banks on both sides, but not deemed a problem at a bridge this size. Overflow section on RFP.Large riprap on L abutment to stop cutbank on U/S LB. Sandbars in U/S channel, gravel bars in D/S channel. Along L edge of FP.D/S of L711 which will control flow. L711 is unskewed, A2091 is skewed approx 20 deg. Flow bends to D/S RB, but LB at bridge & D/S is protected with concreted riprap.Along R edge of FP. Gravel bars in D/S channel. Minor riprap on L abutment. Overflow section on LFP. Rock outcrop on U/S RB.Concreted riprap on L&R abutments & embankment faces. Levees on U/S & D/S RB & U/S & D/S LFP. Woody & concrete debris in U/S & D/S channels. Gage on U/S face on R setback.Riprap on abutments & both embankment faces. Riprap cobbles in channel at bridge. Local scour at both piers. Bank instability noted on all U/S & D/S banks. Trees across channel D/S. Some riprap on setbacks. U/S flow controlled by Lake St. Louis.Well protected with riprap aprons on abutments & both embankment faces; piers designed for scour. Partial levees on both U/S banks will direct flow through bridge. Potential overflow sections on both FPs. Flagged due to mass wasting--not deemed a problemOn edge of MI river--will certainly backwater. Yimp = RFP elev, Qimp substantially less than Q100. Therefore, due to MI river FP, no other Q calculated.Riprap on abutments & U/S embankment faces; some in channel. Highly channelized but starting to shift. Contraction scour on L setback. Embankment on U/S RFP.In process of being replaced. Raised road & longer span under construction.Riprap on abutments & U/S embankment faces; some in channel. Highly channelized but starting to shift. Contraction scour on L setback. Embankment on U/S RFP.On edge of MI river FP--most likely subject to backwater. Q's seem really low. Contraction scour on L setback. Cutbank on D/S RB. FPs are leveed.Channel bends from U/S RFP; large cutbank U/S LB; recoils to cutbank on RB at bridge at pier; bends to D/S RB--D/S LB covered with concreted riprap at D/S bridge A2091. Gravel in channel--not sure if small riprap or natural. LB pier shows signs of scour.Replaced by all new bridges--one continuous bridge from north to south outer road including I-70Large meander immediately U/S of bridge; flow impinging on R embankment. Potential overflow section on RFP. Along L edge of FPHeavy-duty riprap on both banks & abutments; some in channel as well. Mild meander bends with cutbanks U/S, but no immediate threat to bridge.Moderately well protected with riprap & concrete debris. 3 cylinder pier bents. Buried riprap? U/S & D/S banks intermittently covered with rock & concrete debris, directing flow away from abutments. Channel appears shifted to L, large cobbles in channelRiprap on both banks at bridge. No appreciable setbacks. Riprap on U/S RB will act as quidebank. Large cutbank on U/S RB & D/S LB. Channel widened under bridge, but lined with cobbles & concrete debris.

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District 06



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A1156 GRAVOIS CR MO021 ST LOUIS 2 250 11.7 Q100 12100 12100 REG 10.8 -- -- -- -- -- -- --A1242 CREEK & RR IS270 ST LOUIS 1 329 6.16 Q100 7160 7160 REG 6.9 -- -- -- -- -- -- --A16181 CREVE COEUR CR MO340 ST LOUIS 1 186 22.0 Q100 20300 20300 REG 20.0 22.0 L 29.8 28.2 7.7 -- 26.5A1680 BONHOMME CR US040 ST LOUIS 1 285 36.2 Q100 27700 27700 REG 17.1 -- -- -- -- -- -- --A1796 MERAMEC RI IS044 ST LOUIS 2 1308 3790 Q100 211000 211000 REG 22.3 -- -- -- -- -- -- --A2014A&B MERAMEC RI & RD MO030 ST LOUIS 2 1217 3900 Q100 203000 203000 REG 22.8 -- -- -- -- -- -- --A210 COLDWATER CR OR270 ST LOUIS 1 119 16.6 Q100 16100 12935 BC 19.4 11.8 L 23.6 -- 7.7 -- 20.6A2219 FENTON CR OR030 ST LOUIS 2 83 3.30 Q100 4290 4290 REG 11.3 -- -- -- -- -- -- --A2643 MERAMEC RI & RD IS044 ST LOUIS 2 1081 3900 Q100 201000 201000 REG 24.3 -- -- -- -- -- -- --A2955 MERAMEC RI RT00W ST LOUIS 2 972 2800 Q100 166000 166000 REG 23.1 -- -- -- -- -- -- --A3998 MERAMEC RI MO141 ST LOUIS 2 635 3850 Q100 202000 202000 REG 33.6 -- -- -- -- -- -- --A4012 CREEK & RR IS044 ST LOUIS 2 341 15.7 Q100 14000 14000 REG 9.8 -- -- -- -- -- -- --A4157 COWMIRE CR RT B ST LOUIS 1 43 2.85 Q100 2710 2710 REG 16.2 8.9 L -- -- -- -- --A4287 FLAT CR RT00W ST LOUIS 2 118 5.26 Q100 5690 5690 REG 10.8 -- -- -- -- -- -- --A4513 COLDWATER CR OR270 ST LOUIS 1 118 16.6 Q100 16100 16100 REG 21.0 -- -- -- -- -- -- --A4626 BONHOMME CR & RR US040 ST LOUIS 2 286 36.2 Q100 12600 12600 REG 10.2 -- -- -- -- -- -- --A4783A&B CREVE COEUR CR US040 ST LOUIS 1 182 5.39 Q100 6410 6410 REG 9.3 -- -- -- -- -- -- --A4784 CREVE COEUR CR OR040 ST LOUIS 1 182 7.20 Q100 8140 8140 REG 10.7 -- -- -- -- -- -- --A4785 CREVE COEUR CR OR040 ST LOUIS 1 180 0.53 Q100 948 948 REG 2.9 -- -- -- -- -- -- --A4886 COWMIRE CR MO115 ST LOUIS 1 182 5.94 Q100 6940 6940 REG 9.7 -- -- -- -- -- -- --A4887 COWMIRE CR CTYST ST LOUIS 1 211 6.10 Q100 7100 7100 REG 9.0 -- -- -- -- -- -- --A5006 COWMIRE CR MO115 ST LOUIS 1 182 5.94 Q100 6940 6940 REG 9.7 -- -- -- -- -- -- --A607A&B GRAVOIS CR IS055 ST LOUIS 1 271 14.2 Q100 14200 14200 REG 11.8 -- -- -- -- -- -- --A609A&B MERAMEC RI IS055 ST LOUIS 2 1425 3930 Q100 202000 202000 REG 20.7 -- -- -- -- -- -- --A8691 COLDWATER CR RT0AC ST LOUIS 1 228 34.7 Q100 29600 26750 BC 22.5 4.1 L 18.9 11.8 7.8 -- 23.2J824 FOX CR LP044 ST LOUIS 2 193 15.6 Q100 13900 13900 REG 17.4 12.2 L 6.1 -- 12.1 -- 20.0K205 MERAMEC RI US061 ST LOUIS 2 845 3930 Q100 211000 211000 REG 29.0 -- -- -- -- -- -- --K458 MERAMEC RI MO231 ST LOUIS 2 1179 3950 Q100 210000 210000 REG 23.7 -- -- -- -- -- -- --K849 BONHOMME CR MO109 ST LOUIS 2 83 5.73 Q100 3230 3230 REG 9.5 -- -- -- -- -- -- --L218 MALINE CR RT00N ST LOUIS 1 95 5.35 Q100 6380 6380 REG 14.9 6.5 L -- -- 7.7 -- 21.1L6111 MERAMEC RI IS044 ST LOUIS 2 1307 3780 Q100 206000 206000 REG 22.0 -- -- -- -- -- -- --L6231 MERAMEC RI & RD IS044 ST LOUIS 2 1103 3880 Q100 202000 202000 REG 24.1 -- -- -- -- -- -- --L717R COLDWATER CR IS270 ST LOUIS 1 120 16.6 Q100 16100 12935 BC 19.3 0.0 L -- -- 7.7 -- 13.6L932A&B FOX CR IS044 ST LOUIS 2 176 14.0 Q100 12700 11450 BC 12.9 5.4 L -- 7.5 7.7 -- 5.2N201 WILLIAMS CR OR044 ST LOUIS 2 113 9.28 Q100 10000 8555 BC 14.2 0.0 L 22.8 24.2 5.2 -- 22.5R306 MERAMEC RI DD OR055 ST LOUIS 2 72 1.56 Q100 2320 2320 REG 8.5 -- -- -- -- -- -- --W332 HIBLER CR RT0AB ST LOUIS 1 27 3.14 Q100 4110 3115 BC 20.7 6.5 L -- -- -- -- 12.5Z773 DRY BR MO109 ST LOUIS 2 26 0.77 Q100 1300 1300 REG 11.0 -- -- -- -- -- -- --Z779 CREVE COEUR CR MO141 ST LOUIS 1 52 11.7 Q100 11000 6420 BC 19.8 0.0 L -- -- -- -- 17.7Z785 BONHOMME CR RT00C ST LOUIS 2 53 7.38 Q100 4590 3150 BC 14.4 9.2 L -- -- -- -- 29.5Z787 CAULKS CR RT0CC ST LOUIS 2 75 17.6 Q100 8420 7370 BC 17.2 4.6 L -- -- 18.6 -- 29.5A1057 RIVER DES PERES & RD IS055 ST LOUIS CITY 1 558 62.7 Q100 48100 48100 REG 15.9 -- -- -- -- -- -- --A3208 RIVER DES PERES MO366 ST LOUIS CITY 1 233 72.3 Q100 54000 54000 REG 29.0 -- -- -- -- -- -- --


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document.xls

District 06


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- Q500 18400 18400 REG 13.9 -- -- -- -- -- -- -- -- P N N Y Y Y Y -- Well protected with riprap on abutments & U/S embankment faces. Rock outcrop on D/S L & R banks. Cutbank due to channel bend on U/S RB, but slowed by concrete debris.-- Q500 10700 10700 REG 8.8 -- -- -- -- -- -- -- -- N N P N Y N -- -- Bridge is designed for railroad--creek may not ever get out of banks. Flagged due to mass wasting, cutbanks & observed holes--all confirmed, but stabilized with new riprap.

25.1 Q500 31500 31500 REG 26.1 28.0 L 43.3 41.4 7.8 -- 31.8 30.6 P Y N Y Y Y ? -- Large riprap & concrete debris on both abutments & embankment faces; also on D/S RB. Cutbank on RB under bridge & U/S. Contraction/abutment scour on both setbacks; Q500 approx equals Qimp. Old bridge embankment/abutments approx 1 bridge length D/S.-- Q500 42500 42500 REG 22.2 -- -- -- -- -- -- -- -- N N P P Y Y Y -- Well protected w/ riprap on L abutment & rock outcrop on R side. Leveed on L side for MO River backwater. Flagged due to scour & piers & mass wasting--all confirmed, but not deemed to be a problem--simple erosion. Dual bridge w/ A4626 (D/S)-- Q500 285000 285000 REG 26.8 -- -- -- -- -- -- -- -- N N P N Y Y ? -- Heavily riprapped abutments. Times Beach levees contain flow on L side, bluff on R. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Dual bridge L6111-- Q500 273000 273000 REG 27.2 -- -- -- -- -- -- -- -- N N N N Y Y Y Y Well protected with riprap on abutments, spur dike on L side, piers designed for scour, etc. Contraction scour hole U/S by spur dike. On R edge of FP.

21.6 Qimp 9770 9770 BC 16.4 11.4 L 17.6 -- 7.7 -- 16.3 18.4 Y Y N Y Y Y N -- U/S-most and worst of all: A210, L717, A4513. Riprap on R abutment & partial on RB only. Cutbank on LB under bridge & on U/S banks. Qimp approx equals Q100-- Q500 6260 6260 REG 14.1 -- -- -- -- -- -- -- -- P P N N N Y ? -- Concreted riprap on both abutments and U/S & D/S banks. No FPs. Flagged due to pier scour & cutbank--stopped by riprap.-- Q500 270000 270000 REG 29.1 -- -- -- -- -- -- -- -- N N P N Y Y ? -- Riprap on both abutments. Rock outcrop & bluff on L side. Minor local scour on R setback. Flagged due to unknown scour, abutment exposure, mass wasting & cutbank--not deemed to be a problem at a bridge this size, piers founded on bedrock (presumably).-- Q500 223000 223000 REG 27.6 -- -- -- -- -- -- -- -- Y N P N Y Y Y -- Heavily riprapped abutments. Rock bluff on L side. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Overflow on RFP.-- Q500 271000 271000 REG 40.1 -- -- -- -- -- -- -- -- N N N P Y Y Y -- Newer bridge w/ well protected abutments. Levees & raised FPs on both U/S banks & D/S LB. Mass wasting on U/S banks, footing exposure at pier set on secondary terraced bank--neither deemed to be a problem at a bridge this large. Other comments…-- Q500 20800 20800 REG 12.5 -- -- -- -- -- -- -- -- N N P P N N -- -- Bridge over RR off bluff on L side. L abutment covered with concrete. Bridge designed for RR, channel is secondary. Flagged due to mass wasting on both banks--not deemed a problem; shallow, wide channel.-- Q500 3670 3670 REG 19.5 13.6 L -- -- -- -- -- -- N N Y N N Y Y -- 3-bbl box culvert with flared wingwalls; concrete bottom; U/S channel approaches at 90 deg along R embankment.-- Q500 8210 8210 REG 13.5 -- -- -- -- -- -- -- -- N N N N N Y Y -- Well protected on both abutments. Probably subject to backwater from Meramec R. Small creek, stable banks & setbacks. Flagged due to pier scour & mass wasting--not deemed to be a problem.-- Q500 24800 24800 REG 27.3 -- -- -- -- -- -- -- -- P P N N N Y Y -- D/S-most of all: A210, L717, A45113. Well protected with riprap on abutments & banks.-- Q500 17200 17200 REG 12.3 -- -- -- -- -- -- -- -- N N P P Y Y Y -- Well protected w/ riprap on L abutment & rock outcrop on R side. Leveed on L side for MO River backwater. Flagged due to scour & piers & mass wasting--all confirmed, but not deemed to be a problem--simple erosion. Dual bridge w/ A1680 (U/S)-- Q500 9510 9510 REG 11.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Central bridges of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.-- Q500 12200 12200 REG 13.7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- D/S-most bridge of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.-- Q500 1320 1320 REG 3.6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- U/S-most bridge of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.-- Q500 10300 10300 REG 12.3 -- -- -- -- -- -- -- -- N N N P N N -- -- Leveed through bridge--channelized. Q's such that once levees overtopped, minimal flow on FPs. On edge of MO River FP. Not protected, but not in danger. Not known why flagged…-- Q500 10600 10600 REG 11.5 -- -- -- -- -- -- -- -- N N N Y Y Y Y -- Riprap aprons on both abutments. Immediately D/S of old arch tunnel which directs flow at RB, causing cutbank. Saddle cut through old embankment will allow flow toward LB, balancing tunnel flow. Bridge built w/ skew favoring flow through saddle.-- Q500 10300 10300 REG 12.3 -- -- -- -- -- -- -- -- N N N P N N -- -- Leveed through bridge--channelized. Q's such that once levees overtopped, minimal flow on FPs. On edge of MO River FP. Not protected, but not in danger. Not known why flagged…-- Q500 21700 21700 REG 15.2 -- -- -- -- -- -- -- -- N N Y P Y Y Y -- Very heavily protected with riprap & concrete pads on abutments. Cobbles in channel. Flagged due to pier scour, mass wasting, observed holes & cutbanks--not all confirmed, but not deemed to be a problem in any case.-- Q500 271000 271000 REG 24.7 -- -- -- -- -- -- -- -- N N P N ? Y Y -- Recently reworked--new riprap on abutments, very mild slope on embankments. Very well protected & designed to resist scour. Flagged due to unknown, hole, cutbank & mass wasting--not all confirmed, but not deemed to be a problem at a bridge this size.

12.1 Qimp 23900 23900 BC 21.1 6.3 L 16.6 8.6 7.7 -- 21.8 7.0 Y Y P Y Y Y N -- Partial riprap on both abutments & banks. Large slump on LB immediately U/S of bridge. Raised FP on U/S & D/S RFP. Parking lot on U/S LFP. Cobbles in channel. 12.0 Q500 20800 20800 REG 21.1 17.5 L 11.9 -- 12.1 -- 23.2 19.1 N N P Y Y Y N -- Riprapped on L abutment & concreted riprap on R abutment. Large meander w/ cutbank on U/S LB. Built w/ 20 deg skew, channel approaches at 40 deg. U/S LFP RV park w/ trees. Channel essentially parallels road on U/S RB. LB & abut very steep--exposure.

-- Q500 284000 284000 REG 34.7 -- -- -- -- -- -- -- -- P P N P Y Y N -- Older bridge, protected w/ riprap on banks & abutments--however, not designed for scour. Flagged due to unknown scour & mass wasting--stabilized with riprap. R abutment being worked on. Probably subject to MI River backwater.-- Q500 282000 282000 REG 28.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced-- Q500 4370 4370 REG 11.4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A5043

17.9 Q500 9450 9450 REG 18.9 17.3 L -- -- 7.7 -- 30.5 29.0 Y Y N Y Y N -- -- Concrete on U/S L WW. Channel shifted to L. Most of L "barrel" filled with debris. Most of R "barrel" blocked by U/S RB. Substantial exposure at L abutment.-- Q500 277000 277000 REG 26.3 -- -- -- -- -- -- -- -- N N P N Y Y ? -- Heavily riprapped abutments. Times Beach levees contain flow on L side, bluff on R. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Dual bridge L6111-- Q500 272000 272000 REG 28.8 -- -- -- -- -- -- -- -- N N P N Y Y ? -- Riprap on both abutments. Rock outcrop & bluff on L side. Minor local scour on R setback. Flagged due to unknown scour, abutment exposure, mass wasting & cutbank--not deemed to be a problem at a bridge this size, piers founded on bedrock (presumably).

13.6 Qimp 9770 9770 BC 16.3 0.0 L -- -- 7.7 -- 4.3 4.3 P P N Y Y M N -- Middle of all: A210, L717, A4513. Moderately protected with riprap. Problems at A210 may transfer D/S to L717.20.0 Qimp 10200 10200 BC 12.1 6.6 L -- 6.4 7.7 -- 1.4 19.1 Y Y P Y Y N -- -- Along L edge of FP. Bend U/S with cutbank on U/S LB. Cutbank on D/S RB. Gravel bar under bridge.22.1 Qimp 7110 7110 BC 12.7 2.2 L 20.1 21.4 5.2 -- 21.2 20.7 Y Y N Y Y N -- -- Immediately D/S of I-44 bridges (L402 & ?) which will control & direct flow. Entire road will be overtopped. Some local scour at R pile bent. Cutbank on D/S LB & RB immediately D/S of bridge.

-- Q500 3310 3310 REG 10.5 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Couldn't find this bridge; probably replaced with other bridge work over Meramec.12.5 Qimp 2120 2120 BC 16.4 12.6 L -- -- -- -- -- -- Y Y N Y Y M N -- Small bridge with vertical abutments, some riprap on U/S L WW to stop cutting from channel, which approaches at approx 50 deg. No FP flow until road overtops. Both abutment footings exposed. Photos taken.

-- Q500 1810 1810 REG 13.5 -- -- -- -- -- -- -- -- P Y Y Y Y M N -- Concrete & cobbles on all WWs. Abutment footings exposed, in process of being formed for new concrete. Primary problem is downcutting of channel, & Level 1+ will not indicate this. No FP flow until road overtopped, so no contraction. More work later??32.7 Qimp 1840 1840 BC 9.3 0.0 L -- -- -- -- -- -- Y Y N Y Y M N -- Riprap on U/S L WW & abutment. Concrete wier immediately U/S. Channel curves under bridge. Along L edge of FP. Yimp = FP elev = road elev.30.2 Qimp 1710 1710 BC 10.0 7.3 L -- -- -- -- 17.7 19.3 Y Y P Y Y M N -- Concreted cobbling on U/S WWs. Gravel bar in channel. Built w/o skew, channel approaches at 40 deg, impinging on L embankment. Overflow over entire length of road.31.0 Qimp 6320 6320 BC 15.7 6.2 L -- -- 18.6 -- 26.1 29.0 Y Y N Y Y M N -- Concrete & cobbling on U/S WW. Levee on D/S LB covered with concrete debris. D/S RB covered with riprap. On R edge of FP. Large debris pile on pier.

-- Q500 77200 77200 REG 21.2 -- -- -- -- -- -- -- -- N N Y N N Y Y -- Fully lined. Very well protected with riprap & inlaid cobbling on abutments & banks. Cobbles in channel.-- Q500 87100 87100 REG 38.7 -- -- -- -- -- -- -- -- P P Y N Y Y ? -- Fully lined with concrete on banks & abutments, & cobbles in channel. Flagged due to pier scour & hole--not a problem


1056575859606162636465666768697071727374757677787980818283848586878889909192939495969798

W6


Z6


AC10


document.xls

District 06

Comment codes:

Notes


Well protected with riprap on abutments & U/S embankment faces. Rock outcrop on D/S L & R banks. Cutbank due to channel bend on U/S RB, but slowed by concrete debris.Bridge is designed for railroad--creek may not ever get out of banks. Flagged due to mass wasting, cutbanks & observed holes--all confirmed, but stabilized with new riprap.Large riprap & concrete debris on both abutments & embankment faces; also on D/S RB. Cutbank on RB under bridge & U/S. Contraction/abutment scour on both setbacks; Q500 approx equals Qimp. Old bridge embankment/abutments approx 1 bridge length D/S.Well protected w/ riprap on L abutment & rock outcrop on R side. Leveed on L side for MO River backwater. Flagged due to scour & piers & mass wasting--all confirmed, but not deemed to be a problem--simple erosion. Dual bridge w/ A4626 (D/S)Heavily riprapped abutments. Times Beach levees contain flow on L side, bluff on R. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Dual bridge L6111Well protected with riprap on abutments, spur dike on L side, piers designed for scour, etc. Contraction scour hole U/S by spur dike. On R edge of FP.U/S-most and worst of all: A210, L717, A4513. Riprap on R abutment & partial on RB only. Cutbank on LB under bridge & on U/S banks. Qimp approx equals Q100Concreted riprap on both abutments and U/S & D/S banks. No FPs. Flagged due to pier scour & cutbank--stopped by riprap.Riprap on both abutments. Rock outcrop & bluff on L side. Minor local scour on R setback. Flagged due to unknown scour, abutment exposure, mass wasting & cutbank--not deemed to be a problem at a bridge this size, piers founded on bedrock (presumably).Heavily riprapped abutments. Rock bluff on L side. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Overflow on RFP.Newer bridge w/ well protected abutments. Levees & raised FPs on both U/S banks & D/S LB. Mass wasting on U/S banks, footing exposure at pier set on secondary terraced bank--neither deemed to be a problem at a bridge this large. Other comments…Bridge over RR off bluff on L side. L abutment covered with concrete. Bridge designed for RR, channel is secondary. Flagged due to mass wasting on both banks--not deemed a problem; shallow, wide channel.3-bbl box culvert with flared wingwalls; concrete bottom; U/S channel approaches at 90 deg along R embankment.Well protected on both abutments. Probably subject to backwater from Meramec R. Small creek, stable banks & setbacks. Flagged due to pier scour & mass wasting--not deemed to be a problem.D/S-most of all: A210, L717, A45113. Well protected with riprap on abutments & banks.Well protected w/ riprap on L abutment & rock outcrop on R side. Leveed on L side for MO River backwater. Flagged due to scour & piers & mass wasting--all confirmed, but not deemed to be a problem--simple erosion. Dual bridge w/ A1680 (U/S)Central bridges of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.D/S-most bridge of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.U/S-most bridge of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.Leveed through bridge--channelized. Q's such that once levees overtopped, minimal flow on FPs. On edge of MO River FP. Not protected, but not in danger. Not known why flagged…Riprap aprons on both abutments. Immediately D/S of old arch tunnel which directs flow at RB, causing cutbank. Saddle cut through old embankment will allow flow toward LB, balancing tunnel flow. Bridge built w/ skew favoring flow through saddle.Leveed through bridge--channelized. Q's such that once levees overtopped, minimal flow on FPs. On edge of MO River FP. Not protected, but not in danger. Not known why flagged…Very heavily protected with riprap & concrete pads on abutments. Cobbles in channel. Flagged due to pier scour, mass wasting, observed holes & cutbanks--not all confirmed, but not deemed to be a problem in any case.Recently reworked--new riprap on abutments, very mild slope on embankments. Very well protected & designed to resist scour. Flagged due to unknown, hole, cutbank & mass wasting--not all confirmed, but not deemed to be a problem at a bridge this size.Partial riprap on both abutments & banks. Large slump on LB immediately U/S of bridge. Raised FP on U/S & D/S RFP. Parking lot on U/S LFP. Cobbles in channel. Riprapped on L abutment & concreted riprap on R abutment. Large meander w/ cutbank on U/S LB. Built w/ 20 deg skew, channel approaches at 40 deg. U/S LFP RV park w/ trees. Channel essentially parallels road on U/S RB. LB & abut very steep--exposure.Older bridge, protected w/ riprap on banks & abutments--however, not designed for scour. Flagged due to unknown scour & mass wasting--stabilized with riprap. R abutment being worked on. Probably subject to MI River backwater.ReplacedReplaced with A5043Concrete on U/S L WW. Channel shifted to L. Most of L "barrel" filled with debris. Most of R "barrel" blocked by U/S RB. Substantial exposure at L abutment.Heavily riprapped abutments. Times Beach levees contain flow on L side, bluff on R. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Dual bridge L6111Riprap on both abutments. Rock outcrop & bluff on L side. Minor local scour on R setback. Flagged due to unknown scour, abutment exposure, mass wasting & cutbank--not deemed to be a problem at a bridge this size, piers founded on bedrock (presumably).Middle of all: A210, L717, A4513. Moderately protected with riprap. Problems at A210 may transfer D/S to L717.Along L edge of FP. Bend U/S with cutbank on U/S LB. Cutbank on D/S RB. Gravel bar under bridge.Immediately D/S of I-44 bridges (L402 & ?) which will control & direct flow. Entire road will be overtopped. Some local scour at R pile bent. Cutbank on D/S LB & RB immediately D/S of bridge.Couldn't find this bridge; probably replaced with other bridge work over Meramec.Small bridge with vertical abutments, some riprap on U/S L WW to stop cutting from channel, which approaches at approx 50 deg. No FP flow until road overtops. Both abutment footings exposed. Photos taken.Concrete & cobbles on all WWs. Abutment footings exposed, in process of being formed for new concrete. Primary problem is downcutting of channel, & Level 1+ will not indicate this. No FP flow until road overtopped, so no contraction. More work later??Riprap on U/S L WW & abutment. Concrete wier immediately U/S. Channel curves under bridge. Along L edge of FP. Yimp = FP elev = road elev.Concreted cobbling on U/S WWs. Gravel bar in channel. Built w/o skew, channel approaches at 40 deg, impinging on L embankment. Overflow over entire length of road.Concrete & cobbling on U/S WW. Levee on D/S LB covered with concrete debris. D/S RB covered with riprap. On R edge of FP. Large debris pile on pier.Fully lined. Very well protected with riprap & inlaid cobbling on abutments & banks. Cobbles in channel.Fully lined with concrete on banks & abutments, & cobbles in channel. Flagged due to pier scour & hole--not a problem


1056575859606162636465666768697071727374757677787980818283848586878889909192939495969798

AT10


document.xls

District 06

Well protected with riprap on abutments & U/S embankment faces. Rock outcrop on D/S L & R banks. Cutbank due to channel bend on U/S RB, but slowed by concrete debris.Bridge is designed for railroad--creek may not ever get out of banks. Flagged due to mass wasting, cutbanks & observed holes--all confirmed, but stabilized with new riprap.Large riprap & concrete debris on both abutments & embankment faces; also on D/S RB. Cutbank on RB under bridge & U/S. Contraction/abutment scour on both setbacks; Q500 approx equals Qimp. Old bridge embankment/abutments approx 1 bridge length D/S.Well protected w/ riprap on L abutment & rock outcrop on R side. Leveed on L side for MO River backwater. Flagged due to scour & piers & mass wasting--all confirmed, but not deemed to be a problem--simple erosion. Dual bridge w/ A4626 (D/S)Heavily riprapped abutments. Times Beach levees contain flow on L side, bluff on R. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Dual bridge L6111Well protected with riprap on abutments, spur dike on L side, piers designed for scour, etc. Contraction scour hole U/S by spur dike. On R edge of FP.U/S-most and worst of all: A210, L717, A4513. Riprap on R abutment & partial on RB only. Cutbank on LB under bridge & on U/S banks. Qimp approx equals Q100Concreted riprap on both abutments and U/S & D/S banks. No FPs. Flagged due to pier scour & cutbank--stopped by riprap.Riprap on both abutments. Rock outcrop & bluff on L side. Minor local scour on R setback. Flagged due to unknown scour, abutment exposure, mass wasting & cutbank--not deemed to be a problem at a bridge this size, piers founded on bedrock (presumably).Heavily riprapped abutments. Rock bluff on L side. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Overflow on RFP.Newer bridge w/ well protected abutments. Levees & raised FPs on both U/S banks & D/S LB. Mass wasting on U/S banks, footing exposure at pier set on secondary terraced bank--neither deemed to be a problem at a bridge this large. Other comments…Bridge over RR off bluff on L side. L abutment covered with concrete. Bridge designed for RR, channel is secondary. Flagged due to mass wasting on both banks--not deemed a problem; shallow, wide channel.3-bbl box culvert with flared wingwalls; concrete bottom; U/S channel approaches at 90 deg along R embankment.Well protected on both abutments. Probably subject to backwater from Meramec R. Small creek, stable banks & setbacks. Flagged due to pier scour & mass wasting--not deemed to be a problem.D/S-most of all: A210, L717, A45113. Well protected with riprap on abutments & banks.Well protected w/ riprap on L abutment & rock outcrop on R side. Leveed on L side for MO River backwater. Flagged due to scour & piers & mass wasting--all confirmed, but not deemed to be a problem--simple erosion. Dual bridge w/ A1680 (U/S)Central bridges of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.D/S-most bridge of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.U/S-most bridge of A4785, A4783A&B, A4784. Well protected w/ riprap on abutments & embankment faces. No significant downcutting or channel shifting has occurred. Flagged due to pier & abutment scour & mass wasting--confirmed but trivial.Leveed through bridge--channelized. Q's such that once levees overtopped, minimal flow on FPs. On edge of MO River FP. Not protected, but not in danger. Not known why flagged…Riprap aprons on both abutments. Immediately D/S of old arch tunnel which directs flow at RB, causing cutbank. Saddle cut through old embankment will allow flow toward LB, balancing tunnel flow. Bridge built w/ skew favoring flow through saddle.Leveed through bridge--channelized. Q's such that once levees overtopped, minimal flow on FPs. On edge of MO River FP. Not protected, but not in danger. Not known why flagged…Very heavily protected with riprap & concrete pads on abutments. Cobbles in channel. Flagged due to pier scour, mass wasting, observed holes & cutbanks--not all confirmed, but not deemed to be a problem in any case.Recently reworked--new riprap on abutments, very mild slope on embankments. Very well protected & designed to resist scour. Flagged due to unknown, hole, cutbank & mass wasting--not all confirmed, but not deemed to be a problem at a bridge this size.Partial riprap on both abutments & banks. Large slump on LB immediately U/S of bridge. Raised FP on U/S & D/S RFP. Parking lot on U/S LFP. Cobbles in channel. Riprapped on L abutment & concreted riprap on R abutment. Large meander w/ cutbank on U/S LB. Built w/ 20 deg skew, channel approaches at 40 deg. U/S LFP RV park w/ trees. Channel essentially parallels road on U/S RB. LB & abut very steep--exposure.Older bridge, protected w/ riprap on banks & abutments--however, not designed for scour. Flagged due to unknown scour & mass wasting--stabilized with riprap. R abutment being worked on. Probably subject to MI River backwater.ReplacedReplaced with A5043Concrete on U/S L WW. Channel shifted to L. Most of L "barrel" filled with debris. Most of R "barrel" blocked by U/S RB. Substantial exposure at L abutment.Heavily riprapped abutments. Times Beach levees contain flow on L side, bluff on R. Piers founded on bedrock (no doubt). Flagged due to mass wasting, observed hole & unknown pier scour--not deemed to be a problem for a bridge this size. Dual bridge L6111Riprap on both abutments. Rock outcrop & bluff on L side. Minor local scour on R setback. Flagged due to unknown scour, abutment exposure, mass wasting & cutbank--not deemed to be a problem at a bridge this size, piers founded on bedrock (presumably).Middle of all: A210, L717, A4513. Moderately protected with riprap. Problems at A210 may transfer D/S to L717.Along L edge of FP. Bend U/S with cutbank on U/S LB. Cutbank on D/S RB. Gravel bar under bridge.Immediately D/S of I-44 bridges (L402 & ?) which will control & direct flow. Entire road will be overtopped. Some local scour at R pile bent. Cutbank on D/S LB & RB immediately D/S of bridge.Couldn't find this bridge; probably replaced with other bridge work over Meramec.Small bridge with vertical abutments, some riprap on U/S L WW to stop cutting from channel, which approaches at approx 50 deg. No FP flow until road overtops. Both abutment footings exposed. Photos taken.Concrete & cobbles on all WWs. Abutment footings exposed, in process of being formed for new concrete. Primary problem is downcutting of channel, & Level 1+ will not indicate this. No FP flow until road overtopped, so no contraction. More work later??Riprap on U/S L WW & abutment. Concrete wier immediately U/S. Channel curves under bridge. Along L edge of FP. Yimp = FP elev = road elev.Concreted cobbling on U/S WWs. Gravel bar in channel. Built w/o skew, channel approaches at 40 deg, impinging on L embankment. Overflow over entire length of road.Concrete & cobbling on U/S WW. Levee on D/S LB covered with concrete debris. D/S RB covered with riprap. On R edge of FP. Large debris pile on pier.Fully lined. Very well protected with riprap & inlaid cobbling on abutments & banks. Cobbles in channel.Fully lined with concrete on banks & abutments, & cobbles in channel. Flagged due to pier scour & hole--not a problem

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1056575859606162636465666768697071727374757677787980818283848586878889909192939495969798

document.xls

District 07



TypeTotal

MethodMain channel

OverbankLeft



A581 WHITE RI MO086 BARRY 2 773 1300 Q100 90200 90200 REG 18.4 -- -- -- -- -- -- --H483 DRY BR SHOAL CR MO076 BARRY 2 33 2.60 Q100 2060 1685 BC 11.4 8.1 L -- -- -- -- 34.7T1019 ROAD DITCH SR0VV BARRY 2 28 0.46 Q100 463 463 REG 5.7 -- -- -- -- -- -- --T1020 E ROAD DITCH SR0VV BARRY 2 33 11.0 Q100 6660 6660 REG 25.6 -- -- -- -- -- -- --A4264 N FK SPRING RI US160 BARTON 2 205 106 Q100 19200 19200 REG 16.1 -- -- -- -- -- -- --A1143A&B COUNTY DD US071 BATES 1 798 3460 Q100 96400 96400 REG 19.5 -- -- -- -- -- -- --A2623 MUDDY BR US071 BATES 1 148 7.65 Q100 6200 6200 REG 10.3 -- -- -- -- -- -- --G550 POSSUM CR 0R071 BATES 1 156 7.38 Q100 4130 4130 REG 7.8 -- -- -- -- -- -- --L179 DEEPWATER CR RT00H BATES 1 119 13.9 Q100 5740 5740 REG 13.6 7.8 L -- -- 3.2 -- 20.1L323 MOUND BR RT00H BATES 1 160 25.7 Q100 8000 8000 REG 13.5 7.1 L 11.6 6.6 10.5 7.4 19.4P682 STEWART CR RT00D BATES 1 123 6.21 Q100 4100 4100 REG 11.4 6.5 L -- 4.2 3.2 -- 12.4R115 MARAIS DES CYGNES RI RT00V BATES 1 339 3360 Q100 101000 101000 REG 33.7 -- -- -- -- -- -- --X233 S DEEPWATER CR RT00H BATES 1 143 46.4 Q100 9910 8625 BC 13.3 5.0 L 13.5 -- 10.5 -- 20.1A2063 SAC RI RT00J CEDAR 2 791 1280 Q100 55400 55400 REG 13.5 -- -- -- -- -- -- --A2074 SAC RI (LAKE ARM) MO215 CEDAR 2 4185 710 Q100 77400 77400 REG 6.1 -- -- -- -- -- -- --R124 KITTS CR RT0NN DADE 2 118 9.48 Q100 3520 3520 REG 9.5 14.5 L 1.5 1.5 6.4 -- 17.3R284 GLASS H BR RT00Z DADE 2 117 8.71 Q100 5600 5600 REG 11.3 14.9 L 4.5 7.0 8.3 -- 15.5Z266 SINKING CR RT00M DADE 2 100 11.4 Q100 5600 5600 REG 11.8 -- -- -- -- -- -- --A2690 N FK SPRING RI MO043 JASPER 2 596 542 Q100 40800 40800 REG 13.3 -- -- -- -- -- -- --A3401 COON CR US071 JASPER 2 310 57.0 Q100 12400 12400 REG 9.7 -- -- -- -- -- -- --A3474 CENTER CR US071 JASPER 2 400 234 Q100 36600 36600 REG 15.9 -- -- -- -- -- -- --A4258 SPRING RI MO171 JASPER 2 849 1160 Q100 105000 105000 REG 19.0 -- -- -- -- -- -- --A4928 CENTER CR OF US 71 JASPER 2 150 71.1 Q100 20200 5050 EST 9.4 0.0 L 2.7 2.7 3.2 -- 15.6A4929 CENTER CR US 71 JASPER 2 367 71.1 Q100 20200 15150 EST 10.1 13.6 C 13.1 11.3 8.6 3.3 17.2A541A&B TURKEY CR IS044 JASPER 2 93 5.12 Q100 2800 2800 REG 8.1 -- -- -- -- -- -- --A543A&B JONES CR IS044 JASPER 2 197 27.2 Q100 10500 10500 REG 11.5 -- -- -- -- -- -- --L580 CENTER CR MO037 JASPER 2 363 94.3 Q100 21500 21500 REG 13.0 5.7 L 5.9 4.1 10.6 -- 18.5P748 L SPRING RI MO00Y JASPER 2 138 2.65 Q100 1650 1650 REG 7.5 4.0 C -- 1.9 7.6 -- 0.9T373 SPRING RI RT00H JASPER 2 174 351 Q100 33600 21950 BC 19.9 0.0 L 13.8 6.9 7.8 -- 21.1Y593 SPRING RI MO00D JASPER 2 100 469 Q100 44400 25090 BC 24.2 9.0 L -- -- 10.6 -- 45.6A4869 L HONEY CR MO 14 LAWRENCE 2 52 4.56 Q100 3080 2735 BC 11.8 10.8 L -- -- -- -- --A5052 SPRING RI RT00H LAWRENCE 2 355 70.1 Q100 19300 19300 REG 11.6 -- -- -- -- -- -- --A5384 DOUGER BR RT P LAWRENCE 2 115 13.2 Q100 5900 5900 REG 11.6 9.5 L 9.7 5.8 5.5 5.5 18.5A596 JOHNSON CR MO096 LAWRENCE 2 184 6.91 Q100 5260 5260 REG 7.9 -- -- -- -- -- -- --A937A&B TURNBACK CR & RD IS044 LAWRENCE 2 303 29.7 Q100 10700 10700 REG 9.0 -- -- -- -- -- -- --A981A&B WILLIAMS CR IS044 LAWRENCE 2 153 11.1 Q100 5580 5580 REG 9.1 -- -- -- -- -- -- --K8 HONEY CR MO039 LAWRENCE 2 298 58.4 Q100 14400 14400 REG 10.8 10.3 L 2.6 2.1 7.7 -- 17.0L114 WILLIAMS CR OR044 LAWRENCE 2 108 11.1 Q100 5580 5580 REG 11.3 -- -- -- -- -- -- --P701 TURNBACK CR RT0DD LAWRENCE 2 154 104 Q100 26900 26900 REG 23.4 -- -- -- -- -- -- --S896 DOUGER CR RT00P LAWRENCE 2 61 12.0 Q100 5420 5420 REG 15.6 -- -- -- -- -- -- --T1001 ROAD DITCH SR174 LAWRENCE 2 44 -- Q100 -- -- -- -- -- -- -- -- -- -- --T1022 N ROAD DITCH SR174 LAWRENCE 2 33 -- Q100 -- -- -- -- -- -- -- -- -- -- --T1024 N ROAD DITCH SR174 LAWRENCE 2 32 -- Q100 -- -- -- -- -- -- -- -- -- -- --T619 CLEAR CR MO097 LAWRENCE 2 106 36.2 Q100 12800 7540 BC 15.4 0.8 L 9.6 14.9 4.0 -- 33.2Y134 SPRING CR MO 97 LAWRENCE 2 28 0.24 Q100 437 370 BC 5.0 11.3 L -- -- -- -- --



Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]


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J6


M6


C7


D7


E7


G7


P10


document.xls

District 07


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right

RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes-- Q500 120000 120000 REG 21.8 -- -- -- -- -- -- -- -- N N N N N Y Y -- Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.

32.4 Qimp 1310 1310 BC 9.8 9.0 L -- -- -- -- 29.0 26.7 Y Y P Y Y Y ? -- Riprap on embankments at U/S WWs. Cutbank & scour hole on U/S LB & abutment/contraction scour hole at R abutment. D/S channel overgrown with woody vegetation. Overflow section on LFP.-- Q500 612 612 REG 6.7 -- -- -- -- -- -- -- -- Y Y N N Y M N -- May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.-- Q500 9190 9190 REG 31.0 -- -- -- -- -- -- -- -- Y Y N N Y M N -- May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.-- Q500 25700 25700 REG 19.2 -- -- -- -- -- -- -- -- Y Y P P N Y Y -- Bedrock outcrop on L side. Very well protected with riprap on R abutment, bank & apron. Shallow channel with gravel bottom--little degradation.-- Q500 126000 126000 REG 23.0 -- -- -- -- -- -- -- -- N P N N Y Y ? -- Riprap on abutments & U/S & D/S embankment faces. Dredge ditch with steep, high banks, but no major instabilities that would threaten bridge. Flagged due to unknown pier scour--piers on edges of channel, no exposure suspected.-- Q500 8160 8160 REG 12.2 -- -- -- -- -- -- -- -- P P N N N Y Y -- D/S of H400R2 (not flagged). Well protected with riprap on abutments and piers designed to resist scour. No apparent instabilities. Flagged due to partial riprap--not deemed to be a problem.-- Q500 5600 5600 REG 9.4 -- -- -- -- -- -- -- -- P P N Y Y N -- -- Old bridge on minimally travelled dead end outer road. D/S of US71 bridges--no contraction. Level 1+ will not indicate any scour problems. Flagged due to unknown pier scour--substantial pile exposure at main channel bents, but unknown threat.

11.6 Q500 7740 7740 REG 15.4 12.2 L -- -- 3.3 -- 21.7 14.9 P P N Y Y Y N -- Concreted riprap on R abutment. Concrete debris on U/S RB to stop impinging flow. Meander bends with cutbanks U/S. Blowhole under bridge.11.5 Q500 10700 10700 REG 15.4 12.5 L 15.6 10.9 10.5 7.4 21.0 15.1 N P N Y Y M N -- Riprap & concrete debris on RB & abutment. Old embankment & abutment U/S on RB. Contraction/abutment scour on L setback. Cutbank on U/S & D/S RB. Built w/o skew, channel approaches at 20 deg.13.8 Q500 5530 5530 REG 12.8 9.6 L -- 7.6 3.2 -- 15.1 16.5 P P N Y Y Y N -- Inlaid cinder blocks on both abutments--settling. Contraction scour on both "setbacks". Potential overflow sections on both FPs

-- Q500 131000 131000 REG 39.5 -- -- -- -- -- -- -- -- P N Y Y N Y ? -- Very deep (approx 60'), wide channel w/ bedrock outcrop for LB. Riprap on both abutments & U/S embankment faces. RB slumping, but it appears the bents may be founded on bedrock. No present threat to abutments due to bend to right. Photos taken.8.0 Qimp 7340 7340 BC 12.1 6.6 L 10.9 -- 10.5 -- 18.6 2.7 Y Y N Y Y Y N -- Along R edge of FP. Riprap on R abutment & bank. Overflow section on LFP. Contraction scour on L setback.

-- Q500 71500 71500 REG 15.8 -- -- -- -- -- -- -- -- P N N N N Y Y -- Very well protected with riprap on abutments & piers designed to resist scour. Regulated by Stockton Lake U/S.-- Q500 105000 105000 REG 7.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.

17.3 Q500 4670 4670 REG 11.3 16.8 L 2.7 2.7 6.4 -- 19.9 19.9 P Y P Y Y N -- -- Shallow channel. Blowhole at bridge.15.3 Q500 7700 7700 REG 13.2 18.2 L 7.0 10.7 8.4 -- 19.1 18.9 N P P Y Y M N -- Riprap on both banks & in a pile on L setback. Cutbank on U/S RB. Built with 25 deg skew--channel approaches at 10 deg. Channel shifting under bridge. Old bridge & embankment on D/S LFP.

-- Q500 7620 7620 REG 14.2 -- -- -- -- -- -- -- -- Y Y P Y Y N -- -- Essentially a low-water crossing. Level 1+ will not indicate scour problems since no contraction before overtopping. Structurally in very poor shape. Flagged due to exposed footings at piers--confirmed, unknown foundation type.-- Q500 53500 53500 REG 15.7 -- -- -- -- -- -- -- -- P P N N Y Y Y -- Very well protected with riprap on abutments, U/S & D/S embankment faces, & aprons. Piers designed to resist scour. Minor local scour at setback bents. Minor bank sloughing--not deemed a problem at a site this large. Deep erosion at U/S R drain.-- Q500 16600 16600 REG 11.5 -- -- -- -- -- -- -- -- N N P N Y Y Y -- U/S of A686 (not flagged). Riprap on both abutments & LB. Minor local scour on R setback. Flagged due to footing exposure on R setback--covered with riprap.-- Q500 49600 49600 REG 19.1 -- -- -- -- -- -- -- -- P N N N N Y Y -- Rock bluff on R side, well protected with riprap on L abutment & U/S embankment face. Piers designed to resist scour. Flagged due to unknown pier scour & observed holes--not deemed to be a problem at this site. U/S of L-293 (not flagged or in Level 1 database)-- Q500 142000 142000 REG 22.8 -- -- -- -- -- -- -- -- P P N N Y Y Y -- Very well protected with riprap on both abutments & U/S embankment faces, piers designed to resist scour. RR embankment just D/S. Minor local scour at R setback bents--tops of footings partially exposed in scour holes.

15.6 Q500 27700 6925 EST 10.8 0.0 L 5.2 5.2 3.3 -- 18.4 18.4 P Y N Y N Y Y -- Riprap on both abutment faces; U/S bridge (A-2022) will act as guidebank; D/S bridge H-52417.2 Q500 27700 20775 EST 12.2 0.0 L 16.0 14.8 8.7 3.3 20.1 20.1 P Y N Y N Y Y -- Concreted riprap on both abutment faces; LOB & LB covered with concreted riprap; U/S bridge (A-2023) will act as guidebank; D/S bridge H-525

-- Q500 3760 3760 REG 9.7 -- -- -- -- -- -- -- -- P P N Y Y Y ? -- Concreted riprap on both abutments & U/S embankment faces. Contraction/local scour on both setbacks due to bents--minor relative to shallow channel. Meander bend U/S, some woody debris on banks U/S.-- Q500 14400 14400 REG 13.9 -- -- -- -- -- -- -- -- P P P P Y Y ? -- Concreted riprap on both banks/abutments & U/S embankment faces. Gravel/cobble channel with bars under bridge. Channel narrower U/S. U/S face of R embankment scoured by roadway drain. Minor local scour at main channel bent. Low, narrow bridge D/S (H949)

16.4 Q500 29300 29300 REG 15.2 8.4 L 9.3 7.3 10.6 -- 20.9 20.0 N P N N Y M N -- Inlaid cobbling on abutment faces. Cutbanks on both sides at bridge. Large debris pile on L side. Local scour on setbacks; filled with cobbles.9.4 Q500 2200 2200 REG 8.5 5.2 C 0.0 3.2 7.6 -- 5.5 12.2 Y P N Y N Y ? -- Cobbles on R abutment. Meander bends in U/S & D/S channels. Cutbank on L side at bridge. Overflow section on RFP.

21.6 Qimp 10300 10300 BC 13.4 1.1 L 4.0 0.0 7.7 -- 10.2 11.7 Y P N Y Y M N -- Concreted/aphalted riprap on both abutments--undermined & failing. Riprap on RB. Cutbanks & slumped banks U/S & D/S. Contraction scour on L setback.47.5 Qimp 5780 5780 BC 10.0 9.7 L -- -- 10.4 -- 24.3 28.8 Y Y N Y Y M N -- Located at outside of nearly-closed oxbow loop on island. 2 relief bridges & additional main bridge in addition. Y952 & Y954 both reliefs at 33' long & approx 8' high. Gravel & cobble channel & setbacks. Q's may not be completely accurate.

-- Qimp 2390 2390 BC 10.9 11.8 L -- -- -- -- -- -- N Y N N N N -- -- 3-bbl box culvert; concrete bottom-- Q500 26400 26400 REG 14.0 -- -- -- -- -- -- -- -- P P P Y Y Y Y -- Very well protected with riprap on abutments & embankment faces. Shallow channel. Flagged due to observed scour holes--not deemed to be a problem at this site.

17.2 Q500 8010 8010 REG 14.0 18.6 L 13.1 8.9 5.6 5.6 21.0 20.4 P Y N N N Y Y -- Boulder-sized riprap on both abutments and aprons; debris on R bent and along U/S face-- Q500 7290 7290 REG 9.6 -- -- -- -- -- -- -- -- P P P Y Y Y ? -- Riprap on both abutments & embankment faces. Shallow channel, wide opening. Flagged due to observed pier scour, scour holes, & partial riprap--all confirmed, but not deemed to be a problem.-- Q500 14500 14500 REG 10.8 -- -- -- -- -- -- -- -- N N P Y Y Y ? -- Very tall bridge. Concreted riprap on both abutments & U/S & D/S embankment faces up to 500-yr flood depth. Lateral shifting apparent at bridge. Flagged due to mass wasting on RB--confirmed, but not deemed to be a problem.-- Q500 7610 7610 REG 11.0 -- -- -- -- -- -- -- -- P P P Y Y Y Y -- Very well protected with riprap on abutments & U/S embankment faces. Minor lateral shifting under bridge.

15.7 Q500 19400 19400 REG 12.9 14.8 L 3.8 3.2 7.7 -- 20.1 19.5 P P P Y Y M N -- Inlaid cobbling on abutment faces. Shallow channel. Shifting laterally. Terraced banks. Local & contraction scour on both setbacks.-- Q500 7610 7610 REG 13.6 -- -- -- -- -- -- -- -- P P P Y Y Y Y -- D/S of A981A&B. Older bridge with vertical abutments, but no contraction due to U/S bridges. Minor lateral shifting under bridge.-- Q500 37000 37000 REG 28.4 -- -- -- -- -- -- -- -- P P P Y Y Y N -- Inlaid cobbling on L abutment. RB is rock outcrop. Minor contraction scour on L setback. Flagged due to observed hole--unconfirmed, but in any case not a problem at this site.-- Q500 7350 7350 REG 18.7 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A5384-- Q500 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with double barrel box culvert-- Q500 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with box culvert.-- Q500 -- -- -- -- -- -- -- -- -- -- -- -- Y Y N N Y M N -- May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Deeply incised. Minimal traffic.

34.2 Qimp 2280 2280 BC 7.5 1.9 L 0.5 5.2 3.9 -- 15.2 18.0 Y Y N Y Y N -- -- Marginal concreted riprap on R abutment, undermined headwall. Blowhole at bridge. Overflow sections on both sides.-- Qimp 302 302 BC 4.4 12.2 L -- -- -- -- -- -- Y Y N N N Y Y -- 2-bbl box culvert; concrete bottom; riprap at abutments U/S & D/S; large levee on U/S LB; small levee on U/S RB




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]


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W6


Z6


AC10


document.xls

District 07

Comment codes:

NotesOver lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Riprap on embankments at U/S WWs. Cutbank & scour hole on U/S LB & abutment/contraction scour hole at R abutment. D/S channel overgrown with woody vegetation. Overflow section on LFP.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.Bedrock outcrop on L side. Very well protected with riprap on R abutment, bank & apron. Shallow channel with gravel bottom--little degradation.Riprap on abutments & U/S & D/S embankment faces. Dredge ditch with steep, high banks, but no major instabilities that would threaten bridge. Flagged due to unknown pier scour--piers on edges of channel, no exposure suspected.D/S of H400R2 (not flagged). Well protected with riprap on abutments and piers designed to resist scour. No apparent instabilities. Flagged due to partial riprap--not deemed to be a problem.Old bridge on minimally travelled dead end outer road. D/S of US71 bridges--no contraction. Level 1+ will not indicate any scour problems. Flagged due to unknown pier scour--substantial pile exposure at main channel bents, but unknown threat.Concreted riprap on R abutment. Concrete debris on U/S RB to stop impinging flow. Meander bends with cutbanks U/S. Blowhole under bridge.Riprap & concrete debris on RB & abutment. Old embankment & abutment U/S on RB. Contraction/abutment scour on L setback. Cutbank on U/S & D/S RB. Built w/o skew, channel approaches at 20 deg.Inlaid cinder blocks on both abutments--settling. Contraction scour on both "setbacks". Potential overflow sections on both FPsVery deep (approx 60'), wide channel w/ bedrock outcrop for LB. Riprap on both abutments & U/S embankment faces. RB slumping, but it appears the bents may be founded on bedrock. No present threat to abutments due to bend to right. Photos taken.Along R edge of FP. Riprap on R abutment & bank. Overflow section on LFP. Contraction scour on L setback.Very well protected with riprap on abutments & piers designed to resist scour. Regulated by Stockton Lake U/S.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Shallow channel. Blowhole at bridge.Riprap on both banks & in a pile on L setback. Cutbank on U/S RB. Built with 25 deg skew--channel approaches at 10 deg. Channel shifting under bridge. Old bridge & embankment on D/S LFP.Essentially a low-water crossing. Level 1+ will not indicate scour problems since no contraction before overtopping. Structurally in very poor shape. Flagged due to exposed footings at piers--confirmed, unknown foundation type.Very well protected with riprap on abutments, U/S & D/S embankment faces, & aprons. Piers designed to resist scour. Minor local scour at setback bents. Minor bank sloughing--not deemed a problem at a site this large. Deep erosion at U/S R drain.U/S of A686 (not flagged). Riprap on both abutments & LB. Minor local scour on R setback. Flagged due to footing exposure on R setback--covered with riprap.Rock bluff on R side, well protected with riprap on L abutment & U/S embankment face. Piers designed to resist scour. Flagged due to unknown pier scour & observed holes--not deemed to be a problem at this site. U/S of L-293 (not flagged or in Level 1 database)Very well protected with riprap on both abutments & U/S embankment faces, piers designed to resist scour. RR embankment just D/S. Minor local scour at R setback bents--tops of footings partially exposed in scour holes.Riprap on both abutment faces; U/S bridge (A-2022) will act as guidebank; D/S bridge H-524Concreted riprap on both abutment faces; LOB & LB covered with concreted riprap; U/S bridge (A-2023) will act as guidebank; D/S bridge H-525Concreted riprap on both abutments & U/S embankment faces. Contraction/local scour on both setbacks due to bents--minor relative to shallow channel. Meander bend U/S, some woody debris on banks U/S.Concreted riprap on both banks/abutments & U/S embankment faces. Gravel/cobble channel with bars under bridge. Channel narrower U/S. U/S face of R embankment scoured by roadway drain. Minor local scour at main channel bent. Low, narrow bridge D/S (H949)Inlaid cobbling on abutment faces. Cutbanks on both sides at bridge. Large debris pile on L side. Local scour on setbacks; filled with cobbles.Cobbles on R abutment. Meander bends in U/S & D/S channels. Cutbank on L side at bridge. Overflow section on RFP.Concreted/aphalted riprap on both abutments--undermined & failing. Riprap on RB. Cutbanks & slumped banks U/S & D/S. Contraction scour on L setback.Located at outside of nearly-closed oxbow loop on island. 2 relief bridges & additional main bridge in addition. Y952 & Y954 both reliefs at 33' long & approx 8' high. Gravel & cobble channel & setbacks. Q's may not be completely accurate.3-bbl box culvert; concrete bottomVery well protected with riprap on abutments & embankment faces. Shallow channel. Flagged due to observed scour holes--not deemed to be a problem at this site.Boulder-sized riprap on both abutments and aprons; debris on R bent and along U/S faceRiprap on both abutments & embankment faces. Shallow channel, wide opening. Flagged due to observed pier scour, scour holes, & partial riprap--all confirmed, but not deemed to be a problem.Very tall bridge. Concreted riprap on both abutments & U/S & D/S embankment faces up to 500-yr flood depth. Lateral shifting apparent at bridge. Flagged due to mass wasting on RB--confirmed, but not deemed to be a problem.Very well protected with riprap on abutments & U/S embankment faces. Minor lateral shifting under bridge.Inlaid cobbling on abutment faces. Shallow channel. Shifting laterally. Terraced banks. Local & contraction scour on both setbacks.D/S of A981A&B. Older bridge with vertical abutments, but no contraction due to U/S bridges. Minor lateral shifting under bridge.Inlaid cobbling on L abutment. RB is rock outcrop. Minor contraction scour on L setback. Flagged due to observed hole--unconfirmed, but in any case not a problem at this site.Replaced with A5384Replaced with double barrel box culvertReplaced with box culvert.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Deeply incised. Minimal traffic.Marginal concreted riprap on R abutment, undermined headwall. Blowhole at bridge. Overflow sections on both sides.2-bbl box culvert; concrete bottom; riprap at abutments U/S & D/S; large levee on U/S LB; small levee on U/S RB



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AT10


document.xls

District 07

Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Riprap on embankments at U/S WWs. Cutbank & scour hole on U/S LB & abutment/contraction scour hole at R abutment. D/S channel overgrown with woody vegetation. Overflow section on LFP.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.Bedrock outcrop on L side. Very well protected with riprap on R abutment, bank & apron. Shallow channel with gravel bottom--little degradation.Riprap on abutments & U/S & D/S embankment faces. Dredge ditch with steep, high banks, but no major instabilities that would threaten bridge. Flagged due to unknown pier scour--piers on edges of channel, no exposure suspected.D/S of H400R2 (not flagged). Well protected with riprap on abutments and piers designed to resist scour. No apparent instabilities. Flagged due to partial riprap--not deemed to be a problem.Old bridge on minimally travelled dead end outer road. D/S of US71 bridges--no contraction. Level 1+ will not indicate any scour problems. Flagged due to unknown pier scour--substantial pile exposure at main channel bents, but unknown threat.Concreted riprap on R abutment. Concrete debris on U/S RB to stop impinging flow. Meander bends with cutbanks U/S. Blowhole under bridge.Riprap & concrete debris on RB & abutment. Old embankment & abutment U/S on RB. Contraction/abutment scour on L setback. Cutbank on U/S & D/S RB. Built w/o skew, channel approaches at 20 deg.Inlaid cinder blocks on both abutments--settling. Contraction scour on both "setbacks". Potential overflow sections on both FPsVery deep (approx 60'), wide channel w/ bedrock outcrop for LB. Riprap on both abutments & U/S embankment faces. RB slumping, but it appears the bents may be founded on bedrock. No present threat to abutments due to bend to right. Photos taken.Along R edge of FP. Riprap on R abutment & bank. Overflow section on LFP. Contraction scour on L setback.Very well protected with riprap on abutments & piers designed to resist scour. Regulated by Stockton Lake U/S.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Shallow channel. Blowhole at bridge.Riprap on both banks & in a pile on L setback. Cutbank on U/S RB. Built with 25 deg skew--channel approaches at 10 deg. Channel shifting under bridge. Old bridge & embankment on D/S LFP.Essentially a low-water crossing. Level 1+ will not indicate scour problems since no contraction before overtopping. Structurally in very poor shape. Flagged due to exposed footings at piers--confirmed, unknown foundation type.Very well protected with riprap on abutments, U/S & D/S embankment faces, & aprons. Piers designed to resist scour. Minor local scour at setback bents. Minor bank sloughing--not deemed a problem at a site this large. Deep erosion at U/S R drain.U/S of A686 (not flagged). Riprap on both abutments & LB. Minor local scour on R setback. Flagged due to footing exposure on R setback--covered with riprap.Rock bluff on R side, well protected with riprap on L abutment & U/S embankment face. Piers designed to resist scour. Flagged due to unknown pier scour & observed holes--not deemed to be a problem at this site. U/S of L-293 (not flagged or in Level 1 database)Very well protected with riprap on both abutments & U/S embankment faces, piers designed to resist scour. RR embankment just D/S. Minor local scour at R setback bents--tops of footings partially exposed in scour holes.Riprap on both abutment faces; U/S bridge (A-2022) will act as guidebank; D/S bridge H-524Concreted riprap on both abutment faces; LOB & LB covered with concreted riprap; U/S bridge (A-2023) will act as guidebank; D/S bridge H-525Concreted riprap on both abutments & U/S embankment faces. Contraction/local scour on both setbacks due to bents--minor relative to shallow channel. Meander bend U/S, some woody debris on banks U/S.Concreted riprap on both banks/abutments & U/S embankment faces. Gravel/cobble channel with bars under bridge. Channel narrower U/S. U/S face of R embankment scoured by roadway drain. Minor local scour at main channel bent. Low, narrow bridge D/S (H949)Inlaid cobbling on abutment faces. Cutbanks on both sides at bridge. Large debris pile on L side. Local scour on setbacks; filled with cobbles.Cobbles on R abutment. Meander bends in U/S & D/S channels. Cutbank on L side at bridge. Overflow section on RFP.Concreted/aphalted riprap on both abutments--undermined & failing. Riprap on RB. Cutbanks & slumped banks U/S & D/S. Contraction scour on L setback.Located at outside of nearly-closed oxbow loop on island. 2 relief bridges & additional main bridge in addition. Y952 & Y954 both reliefs at 33' long & approx 8' high. Gravel & cobble channel & setbacks. Q's may not be completely accurate.3-bbl box culvert; concrete bottomVery well protected with riprap on abutments & embankment faces. Shallow channel. Flagged due to observed scour holes--not deemed to be a problem at this site.Boulder-sized riprap on both abutments and aprons; debris on R bent and along U/S faceRiprap on both abutments & embankment faces. Shallow channel, wide opening. Flagged due to observed pier scour, scour holes, & partial riprap--all confirmed, but not deemed to be a problem.Very tall bridge. Concreted riprap on both abutments & U/S & D/S embankment faces up to 500-yr flood depth. Lateral shifting apparent at bridge. Flagged due to mass wasting on RB--confirmed, but not deemed to be a problem.Very well protected with riprap on abutments & U/S embankment faces. Minor lateral shifting under bridge.Inlaid cobbling on abutment faces. Shallow channel. Shifting laterally. Terraced banks. Local & contraction scour on both setbacks.D/S of A981A&B. Older bridge with vertical abutments, but no contraction due to U/S bridges. Minor lateral shifting under bridge.Inlaid cobbling on L abutment. RB is rock outcrop. Minor contraction scour on L setback. Flagged due to observed hole--unconfirmed, but in any case not a problem at this site.Replaced with A5384Replaced with double barrel box culvertReplaced with box culvert.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Deeply incised. Minimal traffic.Marginal concreted riprap on R abutment, undermined headwall. Blowhole at bridge. Overflow sections on both sides.2-bbl box culvert; concrete bottom; riprap at abutments U/S & D/S; large levee on U/S LB; small levee on U/S RB

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District 07



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

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Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A1586 BRUSH CR US071 MCDONALD 2 129 7.90 Q100 5420 5420 REG 10.0 -- -- -- -- -- -- --A3956 ELK RI MO059 MCDONALD 2 541 800 Q100 91100 91100 REG 22.9 -- -- -- -- -- -- --A4543 THOMAS HOLLOW RT00U MCDONALD 2 97 14.9 Q100 8660 8660 REG 15.7 -- -- -- -- -- -- --A826 ELK RI MO043 MCDONALD 2 409 852 Q100 92100 83150 BC 25.7 8.8 L -- -- 6.6 -- 21.0G509R KELLY SPRINGS BR US 71 MCDONALD 2 33 1.61 Q100 2010 2010 REG 14.6 22.3 L -- -- -- -- --J76 ROAD DITCH OR 71 MCDONALD 2 22 2.39 Q100 2590 1970 BC 15.7 6.3 L -- -- -- -- --K621 ELKHORN CR MO076 MCDONALD 2 97 6.44 Q100 4210 4210 REG 11.1 4.1 L -- -- 5.2 -- 15.1N897 STAR HOLLOW RT00U MCDONALD 2 157 15.5 Q100 8860 8860 REG 11.9 -- -- -- -- -- -- --R447 HONEY LAKE VALLEY RT0EE MCDONALD 2 123 6.07 Q100 4650 4650 REG 10.3 3.4 L 2.7 -- 6.4 -- 20.0S121 KINGS CR RT00E MCDONALD 2 105 16.4 Q100 8990 6265 BC 13.4 2.4 L -- -- 3.3 -- 22.4S366 PATTERSON CR MO076 MCDONALD 2 138 12.0 Q100 6940 5945 BC 10.7 7.8 L 3.7 5.1 3.9 -- 18.1T1002 BEAVER BR SR071 MCDONALD 2 61 1.10 Q100 1480 1480 REG 7.2 -- -- -- -- -- -- --T1003 FK BEAVER BR SR071 MCDONALD 2 25 0.54 Q100 1080 1080 REG 10.1 -- -- -- -- -- -- --T1004 FK BEAVER BR SR071 MCDONALD 2 24 0.89 Q100 1470 1470 REG 12.5 -- -- -- -- -- -- --T1006 BEAVER BR SR071 MCDONALD 2 60 3.30 Q100 3250 3250 REG 11.6 -- -- -- -- -- -- --T811 MILL CR MO090 MCDONALD 2 123 14.2 Q100 8080 8080 REG 13.0 -- -- -- -- -- -- --Y876 WOODARD BR MO 90 MCDONALD 2 32 20.0 Q100 9990 5127 BC 27.4 0.0 L -- -- -- -- --A1369 WENTWORTH HOLLOW MO037 NEWTON 2 89 3.67 Q100 7370 7370 REG 15.0 -- -- -- -- -- -- --A3306 SHOAL CR RT00E NEWTON 2 856 254 Q100 43000 43000 REG 11.1 -- -- -- -- -- -- --F5763 SHOAL CR US060 NEWTON 2 252 141 Q100 31100 31100 REG 19.0 -- -- -- -- -- -- --J621 DRY BR BUS 60 NEWTON 2 31 4.62 Q100 713 591 BC 6.3 2.4 L -- -- -- -- --J622 DRY BR BUS 60 NEWTON 2 25 5.01 Q100 4320 2368 BC 16.2 11.9 L -- -- -- -- --L798 SHOAL CR & RD IS044 NEWTON 2 598 442 Q100 54300 54300 REG 15.8 -- -- -- -- -- -- --L799 SHOAL CR & RD IS044 NEWTON 2 598 442 Q100 54300 54300 REG 15.8 -- -- -- -- -- -- --Y305 LOST CR RT00K NEWTON 2 49 33.2 Q100 13100 13100 REG 30.3 -- -- -- -- -- -- --Y395 LOST CR RT0CC NEWTON 2 39 26.1 Q100 8410 8410 REG 26.6 -- -- -- -- -- -- --Y482 WILLOW BR MO086 NEWTON 2 45 12.5 Q100 6460 4555 BC 16.9 3.6 L -- -- -- -- 42.4A3640 OSAGE RI RT00E ST CLAIR 1 699 6180 Q100 134000 134000 REG 25.8 -- -- -- -- -- -- --A3648 OSAGE RI MO013 ST CLAIR 1 1051 8220 Q100 160000 160000 REG 22.5 -- -- -- -- -- -- --A3791 OSAGE RI RT00C ST CLAIR 1 1810 8430 Q100 159000 159000 REG 16.1 -- -- -- -- -- -- --A3813 OSAGE RI RT00H ST CLAIR 1 639 5670 Q100 130000 130000 REG 26.8 -- -- -- -- -- -- --A3882 OSAGE RI RT0ZZ ST CLAIR 1 1720 8490 Q100 158000 158000 REG 16.5 -- -- -- -- -- -- --A3905 SAC RI MO082 ST CLAIR 2 630 1970 Q100 88600 88600 REG 20.6 -- -- -- -- -- -- --A4691 SAC RI US054 ST CLAIR 2 451 1900 Q100 89600 89600 REG 25.3 -- -- -- -- -- -- --T509 BR MONEGAW CR RT P ST CLAIR 1 30 1.47 Q100 1440 1071 BC 11.0 4.3 L -- -- -- -- --A1829 MARMATON RI RT00H VERNON 1 474 480 Q100 57000 57000 REG 19.5 -- -- -- -- -- -- --A1961 L OSAGE RI RT0WW VERNON 1 334 458 Q100 31900 31900 REG 16.9 -- -- -- -- -- -- --A2614 DOUGLAS BR US071 VERNON 1 243 16.2 Q100 4200 4200 REG 6.0 -- -- -- -- -- -- --A2615 MARMATON RI US 71 VERNON 1 486 414 Q100 28600 28600 REG 14.1 0.0 L 7.5 6.8 8.6 8.6 13.1A2629 L OSAGE RI US071 VERNON 1 364 498 Q100 49800 49800 REG 21.1 -- -- -- -- -- -- --A337 MARMATON RI US071 VERNON 1 486 1090 Q100 89800 89800 REG 25.3 -- -- -- -- -- -- --A4829 OSAGE RI RT00M VERNON 1 779 5540 Q100 129000 129000 REG 23.6 -- -- -- -- -- -- --R100 MOORES BR RT0BB VERNON 1 127 24.0 Q100 7610 7610 REG 14.3 14.0 L 8.7 14.4 3.3 -- 19.1


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OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- Q500 7470 7470 REG 12.1 -- -- -- -- -- -- -- -- P P P Y Y Y ? -- Apparently very well protected with concreted riprap on both abutments & U/S embankment faces. Shallow, poorly defined channel. Flagged due to observed pier scour & scour holes--confirmed, but not deemed to be a problem.-- Q500 124000 124000 REG 27.6 -- -- -- -- -- -- -- -- P P N N ? Y Y -- Very well protected with riprap on both abutments & piers designed to resist scour. Rock bluff on L side. Potential overflow section on RFP. Flagged due to unknown pier scour--not deemed to be a problem at a site this large and new.-- Q500 12000 12000 REG 19.0 -- -- -- -- -- -- -- -- P P P Y Y Y Y -- Well protected with riprap on both abutments & U/S LB. Mild cutbank on U/S LB, but mitigated by riprap. Shallow, poorly defined channel U/S & D/S.

27.9 Qimp 74200 74200 BC 24.0 10.6 L -- -- 6.6 -- 19.5 26.4 Y Y P Y Y Y ? -- Inlaid cobbling & concreted riprap on both abutments & U/S embankment faces. Contraction/abutment scour at both abuts--bents at channel edges in holes. Main channel bent appears to have footing exposure (wider portion seen dimly under water). -- Q500 2780 2780 REG 17.7 27.4 L -- -- -- -- -- -- P P P N N N -- -- 2-bbl box culvert; concrete bottom-- Qimp 1350 1350 BC 12.5 7.2 L -- -- -- -- -- -- P P Y N N N -- -- 2-bbl box culvert; gravel-filled barrels with assumed concrete bottoms; R bbl filled 3' more than L bbl

17.2 Q500 5770 5770 REG 13.4 7.5 L -- -- 5.2 -- 19.4 20.4 P Y P Y Y Y N -- Concreted debris & riprap on both abutments & U/S banks. Shallow, poorly defined channel at bridge--bridge length taken roughly as channel width. Gravel bars in channel.-- Q500 12300 12300 REG 14.5 -- -- -- -- -- -- -- -- P P P Y Y Y ? -- Concreted riprap on both abutments & U/S embankment faces. Shallow, poorly defined channel. Flagged due to observed pier scour & cutbank--neither deemed to be a problem at this site.

8.6 Q500 6420 6420 REG 12.0 5.0 C 5.1 -- 6.5 -- 21.4 13.1 N P P Y N N -- -- Shallow channel on R edge of FP. Rock outcrop on R side. Gravel bar in channel under bridge. Meandering, poorly defined channel U/S & D/S.20.9 Qimp 3540 3540 BC 9.5 5.2 L -- -- 3.2 -- 18.6 15.4 Y Y P Y Y Y N -- Riprap & concreted riprap on both abutments & R U/S embankment face. Shallow, poorly defined channel. Gravel bars in channel. Overflow section on LFP.17.9 Qimp 4950 4950 BC 9.6 8.6 L 2.8 4.1 3.9 -- 15.9 15.8 Y Y P Y Y N -- -- Shallow, poorly defined channel. Contraction/abutment scour on R setback. Cutbank on LB U/S & under bridge. Minimal riprap on L abutment.

-- Q500 2040 2040 REG 8.7 -- -- -- -- -- -- -- -- Y Y N N Y M N -- May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.-- Q500 1510 1510 REG 12.4 -- -- -- -- -- -- -- -- Y Y N N Y M N -- May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.-- Q500 2050 2050 REG 15.2 -- -- -- -- -- -- -- -- Y Y N N Y M N -- May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. No longer used??-- Q500 4500 4500 REG 14.1 -- -- -- -- -- -- -- -- Y Y N N Y M N -- May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.-- Q500 11200 11200 REG 15.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A4892-- Qimp 263 263 BC 4.6 2.0 L -- -- -- -- -- -- Y Y Y Y N N -- -- 2-bbl box culvert; paved bottom; wingwall on U/S RB-- Q500 10700 10700 REG 18.7 -- -- -- -- -- -- -- -- P P N N Y Y Y -- Very well protected with riprap on both abutments & U/S & D/S embankment faces. Shallow, poorly defined channel at bridge & D/S.-- Q500 58700 58700 REG 13.4 -- -- -- -- -- -- -- -- N N N P N Y Y -- Enormous bridge; very tall due to deep valley, RR overpass on other side of FP. Riprapped up R abutment to 500-yr depth (assumed). No scour. Flagged due to unknown pier scour & slumped riprap--unconfirmed, & not a problem.-- Q500 42500 42500 REG 22.9 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A4894-- Qimp 469 469 BC 5.5 3.2 L -- -- -- -- -- -- Y Y N N ? N -- -- 3-bbl box culvert; concrete bottom; U/S infilling-- Qimp 415 415 BC 5.7 2.9 L -- -- -- -- -- -- Y Y N N N N -- -- 2-bbl box culvert; concrete bottom-- Q500 73500 73500 REG 19.0 -- -- -- -- -- -- -- -- N N P N Y N -- -- Rock bluff on R side; LB covered with concreted riprap up to road on upper L setback. Wide setback on L side with road--acts as a spurdike. Gravel & cobble on L setback-- Q500 73500 73500 REG 19.0 -- -- -- -- -- -- -- -- N N P N Y N -- -- Rock bluff on R side; LB covered with concreted riprap up to road on upper L setback. Wide setback on L side with road--acts as a spurdike. Gravel & cobble on L setback-- Q500 18100 18100 REG 36.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with new box culvert.-- Q500 11300 11300 REG 31.8 -- -- -- -- -- -- -- -- Y Y P P Y N -- -- Essentially a low-water crossing; depth approx 4'. Level 1+ will not indicate scour problems--no contraction before overtopping. Main pier undermined in center, but built on large circular "footings" at each end.

31.9 Qimp 2650 2650 BC 12.2 5.6 L -- -- -- -- 34.8 10.6 Y Y P Y Y M ? -- Located on bend in channel. Cutbanks on U/S & D/S RB. U/S R WW & abutment heavily riprapped with concrete debris. Footing exposure at both abutments--unknown foundations.-- Q500 175000 175000 REG 30.4 -- -- -- -- -- -- -- -- N P N P N Y Y -- Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour.-- Q500 207000 207000 REG 26.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.-- Q500 206000 206000 REG 18.8 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.-- Q500 169000 169000 REG 31.4 -- -- -- -- -- -- -- -- N P N P N Y Y -- Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour.-- Q500 205000 205000 REG 19.4 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.-- Q500 116000 116000 REG 24.2 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.-- Q500 118000 118000 REG 29.9 -- -- -- -- -- -- -- -- N N N N N Y Y -- Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour. Regulated by Stockton Lake U/S.-- Qimp 702 702 BC 8.5 5.8 L -- -- -- -- -- -- Y Y N N N N -- -- 2-bbl box culvert; concrete bottom-- Q500 72700 72700 REG 22.6 -- -- -- -- -- -- -- -- P P N Y Y Y ? -- Rock outcrop on R side. Channel along R edge of FP. Concreted riprap on both abutments & U/S embankment faces. Minor contraction & local scour on L setback. Flagged due to unknown pier scour--unable to define further, but not deemed a problem.-- Q500 42400 42400 REG 20.1 -- -- -- -- -- -- -- -- P P N P Y Y ? -- Riprap on both abutment faces. Minor contraction scour on setbacks. Steep banks, but well vegetated with woody vegetation. Levee on D/S RFP. Flagged due to riprap condition--not deemed a problem.-- Q500 5820 5820 REG 7.3 -- -- -- -- -- -- -- -- P P N Y Y Y Y -- Apparently U/S of lake arm. Abutments well protected with riprap. bents on R setback surrounded with riprap as well. Meander bend U/S. Minor contraction scour on both setbacks. U/S of A336 (not flagged). Flagged due to partial riprap--not deemed a problem

13.3 Q500 38200 38200 REG 16.7 0.0 L 10.8 10.1 8.7 8.7 18.1 18.2 N N N N N Y Y Y Riprap at both abutments--fully protected; spurdike on L side; deeply incised channel; D/S bridge A-337-- Q500 64300 64300 REG 24.6 -- -- -- -- -- -- -- -- P P N Y Y Y ? -- Concrete blocks laid on abutments & U/S embankment faces. Contraction scour on L setback, top of L setback bent footing partially exposed. Flagged due to unknown pier scour, but piers designed to resist scour. U/S of F02833 (not flagged)-- Q500 114000 114000 REG 29.2 -- -- -- -- -- -- -- -- N P N Y Y Y ? -- Immediately D/S of A2615 (not flagged). Spurdike on L side. Recent dirtwork on L setback--possibly to repair effects of minor local scour. Minor contraction scour on R setback. Flagged due to unknown pier scour & partial riprap--neither is a problem.-- Q500 168000 168000 REG 27.7 -- -- -- -- -- -- -- -- P N N P Y Y Y -- Very well protected with riprap on abutments & U/S & D/S embankment faces & gentle slopes. Steep banks & cutbanks; flagged due to unknown pier scour--neither deemed to be a problem at a site this large.

17.6 Q500 10200 10200 REG 15.8 15.8 L 13.5 17.6 3.3 -- 20.4 19.8 P P N Y Y Y N -- Minimal riprap on abutment faces. Contraction scour on both setbacks. Fallen & falling trees in U/S channel. Meander bend D/S with cutbank. Potential overflow section on RFP.


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Comment codes:

Notes


Apparently very well protected with concreted riprap on both abutments & U/S embankment faces. Shallow, poorly defined channel. Flagged due to observed pier scour & scour holes--confirmed, but not deemed to be a problem.Very well protected with riprap on both abutments & piers designed to resist scour. Rock bluff on L side. Potential overflow section on RFP. Flagged due to unknown pier scour--not deemed to be a problem at a site this large and new.Well protected with riprap on both abutments & U/S LB. Mild cutbank on U/S LB, but mitigated by riprap. Shallow, poorly defined channel U/S & D/S.Inlaid cobbling & concreted riprap on both abutments & U/S embankment faces. Contraction/abutment scour at both abuts--bents at channel edges in holes. Main channel bent appears to have footing exposure (wider portion seen dimly under water). 2-bbl box culvert; concrete bottom2-bbl box culvert; gravel-filled barrels with assumed concrete bottoms; R bbl filled 3' more than L bblConcreted debris & riprap on both abutments & U/S banks. Shallow, poorly defined channel at bridge--bridge length taken roughly as channel width. Gravel bars in channel.Concreted riprap on both abutments & U/S embankment faces. Shallow, poorly defined channel. Flagged due to observed pier scour & cutbank--neither deemed to be a problem at this site.Shallow channel on R edge of FP. Rock outcrop on R side. Gravel bar in channel under bridge. Meandering, poorly defined channel U/S & D/S.Riprap & concreted riprap on both abutments & R U/S embankment face. Shallow, poorly defined channel. Gravel bars in channel. Overflow section on LFP.Shallow, poorly defined channel. Contraction/abutment scour on R setback. Cutbank on LB U/S & under bridge. Minimal riprap on L abutment.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. No longer used??May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.Replaced with A48922-bbl box culvert; paved bottom; wingwall on U/S RBVery well protected with riprap on both abutments & U/S & D/S embankment faces. Shallow, poorly defined channel at bridge & D/S.Enormous bridge; very tall due to deep valley, RR overpass on other side of FP. Riprapped up R abutment to 500-yr depth (assumed). No scour. Flagged due to unknown pier scour & slumped riprap--unconfirmed, & not a problem.Replaced with A48943-bbl box culvert; concrete bottom; U/S infilling2-bbl box culvert; concrete bottomRock bluff on R side; LB covered with concreted riprap up to road on upper L setback. Wide setback on L side with road--acts as a spurdike. Gravel & cobble on L setbackRock bluff on R side; LB covered with concreted riprap up to road on upper L setback. Wide setback on L side with road--acts as a spurdike. Gravel & cobble on L setbackReplaced with new box culvert.Essentially a low-water crossing; depth approx 4'. Level 1+ will not indicate scour problems--no contraction before overtopping. Main pier undermined in center, but built on large circular "footings" at each end.Located on bend in channel. Cutbanks on U/S & D/S RB. U/S R WW & abutment heavily riprapped with concrete debris. Footing exposure at both abutments--unknown foundations.Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour. Regulated by Stockton Lake U/S.2-bbl box culvert; concrete bottomRock outcrop on R side. Channel along R edge of FP. Concreted riprap on both abutments & U/S embankment faces. Minor contraction & local scour on L setback. Flagged due to unknown pier scour--unable to define further, but not deemed a problem.Riprap on both abutment faces. Minor contraction scour on setbacks. Steep banks, but well vegetated with woody vegetation. Levee on D/S RFP. Flagged due to riprap condition--not deemed a problem.Apparently U/S of lake arm. Abutments well protected with riprap. bents on R setback surrounded with riprap as well. Meander bend U/S. Minor contraction scour on both setbacks. U/S of A336 (not flagged). Flagged due to partial riprap--not deemed a problemRiprap at both abutments--fully protected; spurdike on L side; deeply incised channel; D/S bridge A-337Concrete blocks laid on abutments & U/S embankment faces. Contraction scour on L setback, top of L setback bent footing partially exposed. Flagged due to unknown pier scour, but piers designed to resist scour. U/S of F02833 (not flagged)Immediately D/S of A2615 (not flagged). Spurdike on L side. Recent dirtwork on L setback--possibly to repair effects of minor local scour. Minor contraction scour on R setback. Flagged due to unknown pier scour & partial riprap--neither is a problem.Very well protected with riprap on abutments & U/S & D/S embankment faces & gentle slopes. Steep banks & cutbanks; flagged due to unknown pier scour--neither deemed to be a problem at a site this large.Minimal riprap on abutment faces. Contraction scour on both setbacks. Fallen & falling trees in U/S channel. Meander bend D/S with cutbank. Potential overflow section on RFP.


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Apparently very well protected with concreted riprap on both abutments & U/S embankment faces. Shallow, poorly defined channel. Flagged due to observed pier scour & scour holes--confirmed, but not deemed to be a problem.Very well protected with riprap on both abutments & piers designed to resist scour. Rock bluff on L side. Potential overflow section on RFP. Flagged due to unknown pier scour--not deemed to be a problem at a site this large and new.Well protected with riprap on both abutments & U/S LB. Mild cutbank on U/S LB, but mitigated by riprap. Shallow, poorly defined channel U/S & D/S.Inlaid cobbling & concreted riprap on both abutments & U/S embankment faces. Contraction/abutment scour at both abuts--bents at channel edges in holes. Main channel bent appears to have footing exposure (wider portion seen dimly under water). 2-bbl box culvert; concrete bottom2-bbl box culvert; gravel-filled barrels with assumed concrete bottoms; R bbl filled 3' more than L bblConcreted debris & riprap on both abutments & U/S banks. Shallow, poorly defined channel at bridge--bridge length taken roughly as channel width. Gravel bars in channel.Concreted riprap on both abutments & U/S embankment faces. Shallow, poorly defined channel. Flagged due to observed pier scour & cutbank--neither deemed to be a problem at this site.Shallow channel on R edge of FP. Rock outcrop on R side. Gravel bar in channel under bridge. Meandering, poorly defined channel U/S & D/S.Riprap & concreted riprap on both abutments & R U/S embankment face. Shallow, poorly defined channel. Gravel bars in channel. Overflow section on LFP.Shallow, poorly defined channel. Contraction/abutment scour on R setback. Cutbank on LB U/S & under bridge. Minimal riprap on L abutment.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. No longer used??May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.Replaced with A48922-bbl box culvert; paved bottom; wingwall on U/S RBVery well protected with riprap on both abutments & U/S & D/S embankment faces. Shallow, poorly defined channel at bridge & D/S.Enormous bridge; very tall due to deep valley, RR overpass on other side of FP. Riprapped up R abutment to 500-yr depth (assumed). No scour. Flagged due to unknown pier scour & slumped riprap--unconfirmed, & not a problem.Replaced with A48943-bbl box culvert; concrete bottom; U/S infilling2-bbl box culvert; concrete bottomRock bluff on R side; LB covered with concreted riprap up to road on upper L setback. Wide setback on L side with road--acts as a spurdike. Gravel & cobble on L setbackRock bluff on R side; LB covered with concreted riprap up to road on upper L setback. Wide setback on L side with road--acts as a spurdike. Gravel & cobble on L setbackReplaced with new box culvert.Essentially a low-water crossing; depth approx 4'. Level 1+ will not indicate scour problems--no contraction before overtopping. Main pier undermined in center, but built on large circular "footings" at each end.Located on bend in channel. Cutbanks on U/S & D/S RB. U/S R WW & abutment heavily riprapped with concrete debris. Footing exposure at both abutments--unknown foundations.Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Over lake arm--no velocities. Well protected with riprap on abutments and embankment faces.Very well protected with riprap on both abutments & embankment faces & with piers designed to resist scour. Regulated by Stockton Lake U/S.2-bbl box culvert; concrete bottomRock outcrop on R side. Channel along R edge of FP. Concreted riprap on both abutments & U/S embankment faces. Minor contraction & local scour on L setback. Flagged due to unknown pier scour--unable to define further, but not deemed a problem.Riprap on both abutment faces. Minor contraction scour on setbacks. Steep banks, but well vegetated with woody vegetation. Levee on D/S RFP. Flagged due to riprap condition--not deemed a problem.Apparently U/S of lake arm. Abutments well protected with riprap. bents on R setback surrounded with riprap as well. Meander bend U/S. Minor contraction scour on both setbacks. U/S of A336 (not flagged). Flagged due to partial riprap--not deemed a problemRiprap at both abutments--fully protected; spurdike on L side; deeply incised channel; D/S bridge A-337Concrete blocks laid on abutments & U/S embankment faces. Contraction scour on L setback, top of L setback bent footing partially exposed. Flagged due to unknown pier scour, but piers designed to resist scour. U/S of F02833 (not flagged)Immediately D/S of A2615 (not flagged). Spurdike on L side. Recent dirtwork on L setback--possibly to repair effects of minor local scour. Minor contraction scour on R setback. Flagged due to unknown pier scour & partial riprap--neither is a problem.Very well protected with riprap on abutments & U/S & D/S embankment faces & gentle slopes. Steep banks & cutbanks; flagged due to unknown pier scour--neither deemed to be a problem at a site this large.Minimal riprap on abutment faces. Contraction scour on both setbacks. Fallen & falling trees in U/S channel. Meander bend D/S with cutbank. Potential overflow section on RFP.

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document.xls

District 08



TypeTotal

MethodMain channel

OverbankLeft



A1198 JAMES RI US 160 CHRISTIAN 2 342 299 Q100 42900 28314 EST 16.6 0.0 L 10.6 11.1 8.7 -- 19.9A2824 JAMES RI MO014 CHRISTIAN 2 667 443 Q100 55100 55100 REG 14.9 -- -- -- -- -- -- --P148 PEDELO CR RT U CHRISTIAN 2 31 18.3 Q100 9300 4871 BC 22.0 7.1 L -- -- -- -- --Y753 ELK CR RT00F CHRISTIAN 2 60 20.1 Q100 10100 6285 BC 22.5 0.0 L -- -- 6.6 -- 37.2A3058 GREASY CR MO038 DALLAS 2 300 22.8 Q100 9800 9800 REG 12.7 13.5 L -- -- 10.1 -- 19.7L339 NIANGUA RI MO032 DALLAS 2 243 214 Q100 35200 25550 BC 17.3 0.0 L 7.3 3.7 8.7 -- 16.2N190 MILL CR RT E DALLAS 2 28 3.08 Q100 3410 1833 BC 14.6 7.6 L -- -- -- -- --P922 CAHOOCHIE CR RT BB DALLAS 2 37 20.7 Q100 8030 4262 BC 18.3 14.3 L -- -- -- -- --S454 L NIANGUA RI RT00E DALLAS 2 67 28.7 Q100 10100 6600 BC 17.6 0.0 L -- -- 5.2 -- 19.2T244 NIANGUA RI RT00M DALLAS 2 352 136 Q100 34200 34200 REG 17.6 10.0 L 10.7 6.3 12.5 8.6 23.7X678 FOUR MILE CR RT P DALLAS 2 27 25.3 Q100 10700 5822 BC 18.2 4.1 L -- -- -- -- --Y627 CLEVER CR MO076 DOUGLAS 2 51 8.23 Q100 6850 3870 BC 14.5 1.7 L -- -- 9.8 -- 30.3A1199 JAMES RI OF US 160 GREENE 2 231 299 Q100 42900 14586 EST 13.0 0.0 L 11.8 11.8 3.3 -- 21.2A2007 POMME DE TERRE RI US065 GREENE 2 397 84.3 Q100 21300 21300 REG 11.5 -- -- -- -- -- -- --A3057 JAMES RI RT00D GREENE 2 614 203 Q100 35200 35200 REG 14.4 0.2 L 4.2 1.9 7.7 -- 24.4A3106 LAKE SPRINGFIELD US065 GREENE 2 591 257 Q100 39900 39900 REG 13.2 -- -- -- -- -- -- --A4145 SOUTH CR RT0FF GREENE 2 398 10.5 Q100 5170 5170 REG 4.9 -- -- -- -- -- -- --A4530 WILSON CR US060 GREENE 2 225 34.9 Q100 11400 11400 REG 11.1 -- -- -- -- -- -- --H636 POMME DE TERRE RI US 65 GREENE 2 522 83.8 Q100 21300 21300 REG 11.9 12.1 L 8.2 5.9 12.8 12.8 22.2L369 BR KINGS CR RT CC GREENE 2 22 6.96 Q100 4750 2558 BC 18.3 15.4 L -- -- -- -- --L370 SIMMS CR RT CC GREENE 2 31 10.1 Q100 6510 3528 BC 18.1 16.3 L -- -- -- -- --T371 ASHER CR RT Z GREENE 2 26 0.52 Q100 593 593 REG 7.3 16.8 L -- -- -- -- --X560 POMME DE TERRE RI RT CC GREENE 2 26 15.7 Q100 8250 4419 BC 23.5 9.5 L -- -- -- -- --Y682 POMME DE TERRE RI RT00E GREENE 2 120 57.4 Q100 17100 17100 REG 20.7 -- -- -- -- -- -- --Y757 CLEAR CR RT AB GREENE 2 24 0.39 Q100 560 560 REG 7.9 13.8 L -- -- -- -- --W188 CHANCE CR RT0BB HICKORY 2 80 6.59 Q100 4580 2658 BC 8.6 0.0 L -- -- 3.9 -- 8.7F772 GOODWIN RI BR OR044 LACLEDE 2 28 4.50 Q100 2960 2175 BC 14.4 4.6 L -- -- 5.2 -- 29.8N337 N COBB CR BR RT0HH LACLEDE 2 102 9.15 Q100 4720 4720 REG 11.0 6.6 L 8.9 -- 6.4 -- 16.5W556 COBB CR RT B LACLEDE 2 35 15.5 Q100 7530 3977 BC 16.2 9.3 L -- -- -- -- --A4485 NORFORK LAKE & RD US160 OZARK 2 469 1160 Q100 116000 116000 REG 28.9 -- -- -- -- -- -- --A5612 BENNETT BAYOU RT AR OZARK 2 155 39.0 Q100 15900 14550 BC 16.7 11.8 L 9.3 9.2 6.5 -- 21.3P352 BENNETT BAYOU MO142 OZARK 2 129 33.4 Q100 14900 9205 BC 16.1 8.3 L -- -- 23.4 -- 30.3X990 N FK WHITE RI RT00H OZARK 2 162 553 Q100 68900 36810 BC 24.2 0.0 L -- -- 4.0 -- 19.4Y579 FK PINE CR RT00N OZARK 2 32 1.54 Q100 2110 1306 BC 10.7 5.6 L -- -- 13.7 -- 28.5W5 BRUSH CR RT00C POLK 2 60 17.8 Q100 7880 5540 BC 16.0 0.0 L -- -- 5.2 -- 10.2W507 PRATTER BR RT00Z POLK 2 44 3.73 Q100 3450 3450 REG 14.5 -- -- -- -- -- -- --Y387 HOMINY CR RT00P POLK 2 92 19.3 Q100 7290 5265 BC 12.7 5.7 L -- -- 5.2 -- 28.8A1819 DRY CRANE CR RT00M STONE 2 96 4.98 Q100 2960 2960 REG 8.8 5.3 L 7.7 6.0 3.2 -- 14.2P214 SILVER LAKE BR 00 U STONE 2 26 8.07 Q100 5880 3060 BC 18.5 14.9 L -- -- -- -- --P778 MCCORD BR 00 BB STONE 2 22 10.1 Q100 6140 3305 BC 21.9 25.2 L -- -- -- -- --A3070 LAKE TANEY COMO & RD US065 TANEY 2 815 -- Q100 -- -- -- -- -- -- -- -- -- -- --A969 FALL CR MO165 TANEY 2 113 5.41 Q100 4990 4990 REG 10.3 -- -- -- -- -- -- --T604 BRUSH CR MO 125 TANEY 2 58 22.8 Q100 11700 6480 BC 19.5 4.6 L -- -- -- -- --T605 BRUSH CR MO 125 TANEY 2 72 18.7 Q100 10600 5930 BC 16.3 0.0 L -- -- -- -- --T606 BRUSH CR MO 125 TANEY 2 38 18.6 Q100 10700 5990 BC 21.7 4.1 L -- -- -- -- --



Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]


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J6


M6


C7


D7


E7


G7


P10


document.xls

District 08


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right

RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes20.7 Q500 58100 38346 EST 19.6 0.0 L 14.9 15.1 8.8 -- 22.7 23.5 N N Y Y N Y Y -- Cobble & boulder-sized riprap on both abutments and aprons; D/S bridge A-4326

-- Q500 74600 74600 REG 17.9 -- -- -- -- -- -- -- -- Y N P P Y Y Y Y Very well designed; riprap & spurdike on L side, overflow section on LFP. Rock bluff on R side. Elev of spurdike = elev of overflow. Local scour observed at piers on L setback, stopped at tops of footings. Flagged due to unknown pier scour--no problem.-- Qimp 441 441 BC 5.2 3.5 L -- -- -- -- -- -- Y Y Y N N N -- -- 3-bbl box culvert; concrete bottom

33.5 Qimp 2470 2470 BC 12.8 0.0 L -- -- 6.5 -- 19.3 4.6 Y Y P P Y Y N -- Concreted riprap on both U/S WWs & U/S LB. Channel parallels road U/S. Short spans w/ lots of trapped debris. Footing exposure at R abutment. Q100 & Q500 substantially overtop road. Gravel splay D/S LB; debris up near road level implies overtopping.10.2 Q500 13400 13400 REG 14.8 15.9 L -- -- 10.1 -- 21.6 14.7 P N P Y Y Y Y -- Well protected with riprap on L abutment & U/S embankment faces--stopped cutbank on U/S LB. Pseudo-setback on R side--included in channel. Channel widened immediately U/S of bridge due to vegetated bar on U/S RB directing flow at LB (causing cutbank).16.6 Qimp 15900 15900 BC 13.0 0.0 L 2.9 0.0 8.7 -- 4.3 5.1 Y N P Y Y Y N -- Riprap on L abutment & partially on U/S embankment face; none on R side. Fallen & falling trees on U/S & D/S banks. Contraction/abutment scour on L setback.

-- Qimp 256 256 BC 4.5 1.3 L -- -- -- -- -- -- Y Y Y Y N Y N -- 2-bbl box culvert; concrete bottom; riprap on U/S RB; concrete on U/S faces of embankment-- Qimp 493 493 BC 5.0 5.3 L -- -- -- -- -- -- Y Y Y Y N Y N -- 3-bbl box culvert; concrete bottom; concreted riprap on both U/S embankment faces

20.0 Qimp 3100 3100 BC 11.2 1.7 L -- -- 5.2 -- 1.9 5.5 Y Y P Y Y M N -- Concreted riprap on both abutments & U/S LB where low-water crossing from tributary feeds in. Short spans have trapped debris. Flagged due to observed pier scour & scour holes--confirmed.24.5 Q500 47200 47200 REG 20.8 12.5 L 15.4 10.0 12.5 8.7 26.4 27.3 N P P Y Y Y N -- Concreted riprap on L abutment & U/S embankment face; none on R side. Local/contraction/abutment scour on L setback. In flood--unable to confirm D50 nor any scour at piers.

-- Qimp 944 944 BC 6.1 3.2 L -- -- -- -- -- -- Y Y Y Y N Y N -- 5-bbl box culvert; concrete bottom; large boulders at toe of WW35.1 Qimp 890 890 BC 6.0 2.5 L -- -- 9.6 -- -- 18.5 Y Y P Y Y N -- -- Five extremely short spans trap a lot of debris. Gravel splays U/S & D/S. Flagged due to footing exposure at piers & abutments--not confirmed but suspected.10.4 Q500 58100 19754 EST 15.4 0.0 L 15.2 15.2 3.3 -- 23.4 15.4 N N Y Y N Y Y -- Cobble & boulder-sized riprap on both abutments and aprons; D/S bridge J-930R1

-- Q500 29100 29100 REG 13.9 -- -- -- -- -- -- -- -- P N P Y Y Y ? -- Site well protected with concreted riprap on L abutment & embankment faces, rock bluff on R side, and piers designed to resist scour. Minor local scour at pier on L setback, cutbank on LB--neither a problem at a site this large.11.2 Q500 47800 47800 REG 17.0 0.4 L 7.1 4.5 7.8 -- 26.7 16.1 N N P Y Y Y Y -- Riprap on L abutment & U/S embankment face. Rock bluff on R side. Poorly defined channel under bridge & D/S due to shallow banks & poorly defined setbacks.

-- Q500 54000 54000 REG 15.9 -- -- -- -- -- -- -- -- N N N N N Y ? -- Over U/S end of Lake Springfield. Rock bluff on L side, riprap on R abutment face. Roads on both setbacks. Dual bridge w/ A649--not flagged. A3106 flagged due to unknown pier scour--not a problem due to little to no velocity.-- Q500 7020 7020 REG 5.9 -- -- -- -- -- -- -- -- N N P N N Y Y -- VERY tall bridge over very small creek. Riprapped at lower face of both abutments, Rock outcrop on L side. No possible way this bridge will scour. Flagged due to footing exposure--not identified.-- Q500 15600 15600 REG 13.4 -- -- -- -- -- -- -- -- P P N Y Y Y Y -- Dual bridge with L596 (D/S)--not flagged. Very well protected newer bridge with riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Minor contraction scour/erosion from tributary on R setback. Minor cutbanks on both U/S banks.

17.8 Q500 29000 29000 REG 13.4 18.7 L 12.1 9.4 12.8 12.8 23.6 20.0 N N N Y Y Y Y -- Bridge no longer in use; revetments at abutment faces; local scour evident; D/S bridge A-2007-- Qimp 365 365 BC 5.7 8.4 L -- -- -- -- -- -- Y Y Y Y N N -- -- 3-bbl box culvert; bedrock bottom-- Qimp 545 545 BC 5.9 6.9 L -- -- -- -- -- -- Y Y Y Y N N -- -- 3-bbl box culvert; bedrock bottom; gravel channel - armored-- Q500 793 793 REG 8.7 18.7 L -- -- -- -- -- -- P P Y Y N N -- -- 2-bbl box culvert; undefined bottom, assumed to be concrete-- Qimp 587 587 BC 7.0 0.0 L -- -- -- -- -- -- Y Y Y N N N -- -- 2-bbl box culvert; bedrock bottom; bedrock in U/S channel; concrete aprons on U/S embankment faces-- Q500 23400 23400 REG 25.0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A4552-- Q500 755 755 REG 9.4 13.7 L -- -- -- -- -- -- P Y N N N N -- -- 2-bbl box culvert; concrete bottom

8.7 Qimp 736 736 BC 4.0 0.0 L -- -- 3.8 -- -- -- Y Y P Y Y N -- -- Essentially a low-water crossing. Overtopped at approx 1200 cfs (4' depth). Flagged due to footing exposure at piers & abutments--confirmed. Level 1+ will not indicate scour problems. If not socketted to bedrock, scour not primary problem, hydraulic forces are.31.0 Qimp 1390 1390 BC 11.0 5.9 L -- -- 5.2 -- 21.1 23.8 Y Y N P N N -- -- Cutbank on D/S LB. Shallow channel, vegetation in channel U/S. Flagged due to unknown pier scour--undeterminable due to mirky water, but only 3' deep at bridge.

9.1 Q500 6410 6410 REG 12.7 9.2 L 12.8 -- 6.5 -- 19.5 13.3 N P Y Y Y Y ? -- Concreted riprap on upper abutment faces & U/S L embankment face. Flashy stream with no flow at time of visit. Large cobbles in channel along with iron-rich silt. "Cutbanks" on U/S & D/S RBs. Along R edge of FP. Contraction & local scour on L setback.-- Qimp 423 423 BC 4.2 2.9 L -- -- -- -- -- -- Y Y Y N N Y Y -- 5-bbl box culvert; concrete bottom; substantial concrete revetment in D/S channel and banks-- Q500 159000 159000 REG 34.9 -- -- -- -- -- -- -- -- N N P Y N Y Y -- Riprap on R abutment & RB. Rock outcrop on L side. Road on R setback. Flagged due to unknown pier scour--not deemed to be a problem; piers designed to resist scour, & bridge over lake arm with minimal velocities.

16.5 Qimp 13200 13200 BC 15.8 12.1 L 8.2 8.1 6.5 -- 20.4 14.7 Y Y N N N Y Y -- Cobble & boulder-sized riprap on both abutments35.0 Qimp 3510 3510 BC 9.0 6.4 L -- -- 23.1 -- 6.4 22.2 Y Y P Y Y N -- -- Essentially a low-water crossing; overtopped at approx 5600 cfs. Channel widens under bridge, but taken as effective width.19.4 Qimp 4720 4720 BC 8.0 0.0 L -- -- 3.9 -- -- -- Y Y P N ? N -- -- Essentially a low-water crossing; overtopped at approx 7500 cfs. No FPs--minimal contraction. Level1+ does not reveal potential scour problems; failure likely from channel migration or hydraulic forces on bridge.28.5 Qimp 502 502 BC 6.0 4.2 L -- -- 13.5 -- 14.0 14.0 Y Y P Y Y N -- -- Short spans trap a lot of debris. Gravel bar in central span. Cutbank on D/S LB. Built w/o skew, channel approaches at 30 deg. Flagged due to footing exposure at piers & abutments--not confirmed but suspected.23.4 Qimp 3200 3200 BC 11.5 0.1 L -- -- 5.2 -- -- 3.4 Y N P N Y N -- -- Footing exposure at pier & abutments. 6' flow depth at tope of pier footing (undermined?). Rock outcrop on U/S RB. Channel shifted to L slightly, large rock on LB immediately U/S of bridge.

-- Q500 4770 4770 REG 17.6 -- -- -- -- -- -- -- -- Y Y Y Y Y M N -- Founded on bedrock. Large rocks placed on WWs for protection. Footing exposure at piers & abutments. New footing work on U/S faces of piers. If not socketted to bedrock, scour not primarly problem, hydraulic forces are.29.9 Qimp 3240 3240 BC 9.5 7.1 L -- -- 5.2 -- 19.8 22.2 Y P Y N Y N -- -- Founded on bedrock shelf. Footing exposure at piers & abutments. If not socketted to bedrock, scour not primary problem, hydraulic forces are.14.6 Q500 4010 4010 REG 10.5 9.3 L 10.1 8.3 3.3 -- 17.5 17.9 P P P Y Y N -- -- Shallow channel. Blowhole under bridge. Channelized but beginning to meander. No abutment protection.

-- Qimp 239 239 BC 4.0 2.8 L -- -- -- -- -- -- Y Y Y N N N -- -- 3-bbl box culvert; concrete bottom; concreted riprap on U/S L embankment face-- Qimp 470 470 BC 6.8 13.4 L -- -- -- -- -- -- Y Y Y N N N -- -- 2-bbl box culvert; concrete bottom; aggraded bed at U/S face; concreted riprap on U/S embankment faces; old abutment ~ 70' U/S-- Q500 -- -- -- -- -- -- -- -- -- -- -- -- N N P N N Y ? -- Over arm of Lake Taneycomo. Concrete pads on abutments, roads on both setbacks. Slumping along one bank. Flagged due to unknown pier scour--not a problem due to little to no velocity.-- Q500 6960 6960 REG 12.5 -- -- -- -- -- -- -- -- P P Y Y Y N -- -- Founded on bedrock. Flagged due to exposed footings at piers, but footings socketed to bedrock--no threat. Short spans. Gravel on bedrock in channel.-- Qimp 1260 1260 BC 7.3 2.6 L -- -- -- -- -- -- Y Y Y N N N -- -- 4-bbl box culvert; bedrock bottom; gravel filled; concrete aprons on U/S embankment faces-- Qimp 1260 1260 BC 6.4 1.5 L -- -- -- -- -- -- Y Y Y N N N -- -- 4-bbl box culvert; bedrock bottom; gravel filled; concrete aprons on U/S embankment faces-- Qimp 1280 1280 BC 8.6 5.5 L -- -- -- -- -- -- Y Y Y N N M N -- 3-bbl box culvert; bedrock bottom; concrete aprons on U/S embankment faces




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]


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W6


Z6


AC10


document.xls

District 08

Comment codes:

NotesCobble & boulder-sized riprap on both abutments and aprons; D/S bridge A-4326Very well designed; riprap & spurdike on L side, overflow section on LFP. Rock bluff on R side. Elev of spurdike = elev of overflow. Local scour observed at piers on L setback, stopped at tops of footings. Flagged due to unknown pier scour--no problem.3-bbl box culvert; concrete bottomConcreted riprap on both U/S WWs & U/S LB. Channel parallels road U/S. Short spans w/ lots of trapped debris. Footing exposure at R abutment. Q100 & Q500 substantially overtop road. Gravel splay D/S LB; debris up near road level implies overtopping.Well protected with riprap on L abutment & U/S embankment faces--stopped cutbank on U/S LB. Pseudo-setback on R side--included in channel. Channel widened immediately U/S of bridge due to vegetated bar on U/S RB directing flow at LB (causing cutbank).Riprap on L abutment & partially on U/S embankment face; none on R side. Fallen & falling trees on U/S & D/S banks. Contraction/abutment scour on L setback.2-bbl box culvert; concrete bottom; riprap on U/S RB; concrete on U/S faces of embankment3-bbl box culvert; concrete bottom; concreted riprap on both U/S embankment facesConcreted riprap on both abutments & U/S LB where low-water crossing from tributary feeds in. Short spans have trapped debris. Flagged due to observed pier scour & scour holes--confirmed.Concreted riprap on L abutment & U/S embankment face; none on R side. Local/contraction/abutment scour on L setback. In flood--unable to confirm D50 nor any scour at piers.5-bbl box culvert; concrete bottom; large boulders at toe of WWFive extremely short spans trap a lot of debris. Gravel splays U/S & D/S. Flagged due to footing exposure at piers & abutments--not confirmed but suspected.Cobble & boulder-sized riprap on both abutments and aprons; D/S bridge J-930R1Site well protected with concreted riprap on L abutment & embankment faces, rock bluff on R side, and piers designed to resist scour. Minor local scour at pier on L setback, cutbank on LB--neither a problem at a site this large.Riprap on L abutment & U/S embankment face. Rock bluff on R side. Poorly defined channel under bridge & D/S due to shallow banks & poorly defined setbacks.Over U/S end of Lake Springfield. Rock bluff on L side, riprap on R abutment face. Roads on both setbacks. Dual bridge w/ A649--not flagged. A3106 flagged due to unknown pier scour--not a problem due to little to no velocity.VERY tall bridge over very small creek. Riprapped at lower face of both abutments, Rock outcrop on L side. No possible way this bridge will scour. Flagged due to footing exposure--not identified.Dual bridge with L596 (D/S)--not flagged. Very well protected newer bridge with riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Minor contraction scour/erosion from tributary on R setback. Minor cutbanks on both U/S banks.Bridge no longer in use; revetments at abutment faces; local scour evident; D/S bridge A-20073-bbl box culvert; bedrock bottom3-bbl box culvert; bedrock bottom; gravel channel - armored2-bbl box culvert; undefined bottom, assumed to be concrete2-bbl box culvert; bedrock bottom; bedrock in U/S channel; concrete aprons on U/S embankment facesReplaced with A45522-bbl box culvert; concrete bottomEssentially a low-water crossing. Overtopped at approx 1200 cfs (4' depth). Flagged due to footing exposure at piers & abutments--confirmed. Level 1+ will not indicate scour problems. If not socketted to bedrock, scour not primary problem, hydraulic forces are.Cutbank on D/S LB. Shallow channel, vegetation in channel U/S. Flagged due to unknown pier scour--undeterminable due to mirky water, but only 3' deep at bridge.Concreted riprap on upper abutment faces & U/S L embankment face. Flashy stream with no flow at time of visit. Large cobbles in channel along with iron-rich silt. "Cutbanks" on U/S & D/S RBs. Along R edge of FP. Contraction & local scour on L setback.5-bbl box culvert; concrete bottom; substantial concrete revetment in D/S channel and banksRiprap on R abutment & RB. Rock outcrop on L side. Road on R setback. Flagged due to unknown pier scour--not deemed to be a problem; piers designed to resist scour, & bridge over lake arm with minimal velocities.Cobble & boulder-sized riprap on both abutmentsEssentially a low-water crossing; overtopped at approx 5600 cfs. Channel widens under bridge, but taken as effective width.Essentially a low-water crossing; overtopped at approx 7500 cfs. No FPs--minimal contraction. Level1+ does not reveal potential scour problems; failure likely from channel migration or hydraulic forces on bridge.Short spans trap a lot of debris. Gravel bar in central span. Cutbank on D/S LB. Built w/o skew, channel approaches at 30 deg. Flagged due to footing exposure at piers & abutments--not confirmed but suspected.Footing exposure at pier & abutments. 6' flow depth at tope of pier footing (undermined?). Rock outcrop on U/S RB. Channel shifted to L slightly, large rock on LB immediately U/S of bridge.Founded on bedrock. Large rocks placed on WWs for protection. Footing exposure at piers & abutments. New footing work on U/S faces of piers. If not socketted to bedrock, scour not primarly problem, hydraulic forces are.Founded on bedrock shelf. Footing exposure at piers & abutments. If not socketted to bedrock, scour not primary problem, hydraulic forces are.Shallow channel. Blowhole under bridge. Channelized but beginning to meander. No abutment protection.3-bbl box culvert; concrete bottom; concreted riprap on U/S L embankment face2-bbl box culvert; concrete bottom; aggraded bed at U/S face; concreted riprap on U/S embankment faces; old abutment ~ 70' U/SOver arm of Lake Taneycomo. Concrete pads on abutments, roads on both setbacks. Slumping along one bank. Flagged due to unknown pier scour--not a problem due to little to no velocity.Founded on bedrock. Flagged due to exposed footings at piers, but footings socketed to bedrock--no threat. Short spans. Gravel on bedrock in channel.4-bbl box culvert; bedrock bottom; gravel filled; concrete aprons on U/S embankment faces4-bbl box culvert; bedrock bottom; gravel filled; concrete aprons on U/S embankment faces3-bbl box culvert; bedrock bottom; concrete aprons on U/S embankment faces



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District 08

Cobble & boulder-sized riprap on both abutments and aprons; D/S bridge A-4326Very well designed; riprap & spurdike on L side, overflow section on LFP. Rock bluff on R side. Elev of spurdike = elev of overflow. Local scour observed at piers on L setback, stopped at tops of footings. Flagged due to unknown pier scour--no problem.3-bbl box culvert; concrete bottomConcreted riprap on both U/S WWs & U/S LB. Channel parallels road U/S. Short spans w/ lots of trapped debris. Footing exposure at R abutment. Q100 & Q500 substantially overtop road. Gravel splay D/S LB; debris up near road level implies overtopping.Well protected with riprap on L abutment & U/S embankment faces--stopped cutbank on U/S LB. Pseudo-setback on R side--included in channel. Channel widened immediately U/S of bridge due to vegetated bar on U/S RB directing flow at LB (causing cutbank).Riprap on L abutment & partially on U/S embankment face; none on R side. Fallen & falling trees on U/S & D/S banks. Contraction/abutment scour on L setback.2-bbl box culvert; concrete bottom; riprap on U/S RB; concrete on U/S faces of embankment3-bbl box culvert; concrete bottom; concreted riprap on both U/S embankment facesConcreted riprap on both abutments & U/S LB where low-water crossing from tributary feeds in. Short spans have trapped debris. Flagged due to observed pier scour & scour holes--confirmed.Concreted riprap on L abutment & U/S embankment face; none on R side. Local/contraction/abutment scour on L setback. In flood--unable to confirm D50 nor any scour at piers.5-bbl box culvert; concrete bottom; large boulders at toe of WWFive extremely short spans trap a lot of debris. Gravel splays U/S & D/S. Flagged due to footing exposure at piers & abutments--not confirmed but suspected.Cobble & boulder-sized riprap on both abutments and aprons; D/S bridge J-930R1Site well protected with concreted riprap on L abutment & embankment faces, rock bluff on R side, and piers designed to resist scour. Minor local scour at pier on L setback, cutbank on LB--neither a problem at a site this large.Riprap on L abutment & U/S embankment face. Rock bluff on R side. Poorly defined channel under bridge & D/S due to shallow banks & poorly defined setbacks.Over U/S end of Lake Springfield. Rock bluff on L side, riprap on R abutment face. Roads on both setbacks. Dual bridge w/ A649--not flagged. A3106 flagged due to unknown pier scour--not a problem due to little to no velocity.VERY tall bridge over very small creek. Riprapped at lower face of both abutments, Rock outcrop on L side. No possible way this bridge will scour. Flagged due to footing exposure--not identified.Dual bridge with L596 (D/S)--not flagged. Very well protected newer bridge with riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Minor contraction scour/erosion from tributary on R setback. Minor cutbanks on both U/S banks.Bridge no longer in use; revetments at abutment faces; local scour evident; D/S bridge A-20073-bbl box culvert; bedrock bottom3-bbl box culvert; bedrock bottom; gravel channel - armored2-bbl box culvert; undefined bottom, assumed to be concrete2-bbl box culvert; bedrock bottom; bedrock in U/S channel; concrete aprons on U/S embankment facesReplaced with A45522-bbl box culvert; concrete bottomEssentially a low-water crossing. Overtopped at approx 1200 cfs (4' depth). Flagged due to footing exposure at piers & abutments--confirmed. Level 1+ will not indicate scour problems. If not socketted to bedrock, scour not primary problem, hydraulic forces are.Cutbank on D/S LB. Shallow channel, vegetation in channel U/S. Flagged due to unknown pier scour--undeterminable due to mirky water, but only 3' deep at bridge.Concreted riprap on upper abutment faces & U/S L embankment face. Flashy stream with no flow at time of visit. Large cobbles in channel along with iron-rich silt. "Cutbanks" on U/S & D/S RBs. Along R edge of FP. Contraction & local scour on L setback.5-bbl box culvert; concrete bottom; substantial concrete revetment in D/S channel and banksRiprap on R abutment & RB. Rock outcrop on L side. Road on R setback. Flagged due to unknown pier scour--not deemed to be a problem; piers designed to resist scour, & bridge over lake arm with minimal velocities.Cobble & boulder-sized riprap on both abutmentsEssentially a low-water crossing; overtopped at approx 5600 cfs. Channel widens under bridge, but taken as effective width.Essentially a low-water crossing; overtopped at approx 7500 cfs. No FPs--minimal contraction. Level1+ does not reveal potential scour problems; failure likely from channel migration or hydraulic forces on bridge.Short spans trap a lot of debris. Gravel bar in central span. Cutbank on D/S LB. Built w/o skew, channel approaches at 30 deg. Flagged due to footing exposure at piers & abutments--not confirmed but suspected.Footing exposure at pier & abutments. 6' flow depth at tope of pier footing (undermined?). Rock outcrop on U/S RB. Channel shifted to L slightly, large rock on LB immediately U/S of bridge.Founded on bedrock. Large rocks placed on WWs for protection. Footing exposure at piers & abutments. New footing work on U/S faces of piers. If not socketted to bedrock, scour not primarly problem, hydraulic forces are.Founded on bedrock shelf. Footing exposure at piers & abutments. If not socketted to bedrock, scour not primary problem, hydraulic forces are.Shallow channel. Blowhole under bridge. Channelized but beginning to meander. No abutment protection.3-bbl box culvert; concrete bottom; concreted riprap on U/S L embankment face2-bbl box culvert; concrete bottom; aggraded bed at U/S face; concreted riprap on U/S embankment faces; old abutment ~ 70' U/SOver arm of Lake Taneycomo. Concrete pads on abutments, roads on both setbacks. Slumping along one bank. Flagged due to unknown pier scour--not a problem due to little to no velocity.Founded on bedrock. Flagged due to exposed footings at piers, but footings socketed to bedrock--no threat. Short spans. Gravel on bedrock in channel.4-bbl box culvert; bedrock bottom; gravel filled; concrete aprons on U/S embankment faces4-bbl box culvert; bedrock bottom; gravel filled; concrete aprons on U/S embankment faces3-bbl box culvert; bedrock bottom; concrete aprons on U/S embankment faces

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TypeTotal

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[mi2] [ft3/s] [ft3/s]Y998 HODGE CR RT AA TANEY 2 27 15.0 Q100 9530 5044 BC 24.4 17.5 L -- -- -- -- --G719 NIANGUA BR RT0CC WEBSTER 2 82 6.25 Q100 4840 4840 REG 12.2 8.6 L 2.6 -- -- -- 36.3Y601 FK GASCONADE RI RT00F WEBSTER 2 161 118 Q100 29300 29300 REG 24.0 -- -- -- -- -- -- --Y772 FINLEY CR RT0BB WEBSTER 2 90 19.5 Q100 8980 6690 BC 14.2 2.7 L -- 6.8 14.8 -- 8.4G7891 WHETSTONE CR US060 WRIGHT 2 159 16.3 Q100 8920 8920 REG 14.0 6.5 L -- -- 8.7 -- 19.6W480 EVEN SHADE CR RT0HH WRIGHT 2 52 4.44 Q100 4310 2835 BC 11.6 3.6 L -- -- 15.8 -- 30.4X853 GASCONADE RI RT00H WRIGHT 2 393 389 Q100 53700 53700 REG 21.2 4.1 L 19.0 9.6 16.5 4.8 28.4


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[ft3/s] [ft3/s]-- Qimp 558 558 BC 6.5 4.2 L -- -- -- -- -- -- Y Y Y N N N -- -- 3-bbl box culvert; bedrock bottom; middle bbl choked with debris

25.5 Q500 6690 6690 REG 14.8 12.8 L 4.7 -- -- -- 40.6 34.8 P Y P Y Y N -- -- Shallow channel with meander bends & cutbanks on U/S RB & D/S LB. R abutment footing exposed. Miscellaneous concrete debris on RB immediately U/S of bridge.-- Q500 40300 40300 REG 29.1 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Replaced with A4517

32.6 Qimp 4400 4400 BC 11.0 5.4 L -- 3.7 14.8 -- -- 28.2 Y Y P Y Y N -- -- Minimal concrete onR abutment WW. Gravel bars in channel. Cutbank on U/S RB. Flagged due to footing exposure at piers & abutments--not confirmed but suspected; bridge in flood.20.7 Q500 12300 12300 REG 16.1 8.7 L -- -- 8.7 -- 21.4 22.6 N N P Y Y Y ? -- Concreted riprap on both abutments. Flagged due to footing exposure--confirmed on R bent. Old raised road embankments U/S will direct flow through bridge. Concrete riprap on both D/S banks. Dual bridge with A3516 (D/S)26.5 Qimp 1360 1360 BC 7.5 4.9 L -- -- 15.6 -- 20.6 12.9 Y Y P Y Y Y ? -- Built with 40 deg skew, channel approaches w/o skew. Extension on U/S RWW to stop flow impinging on R embankment. Flagged due to footing exposure--not confirmed but suspected. Old bridge, short, simple spans.22.5 Q500 73000 73000 REG 24.8 4.7 L 23.2 15.1 16.5 4.8 31.6 25.7 N P P Y Y Y ? -- Concreted riprap on both abutments. Riprap on L setback. Braided channel U/S & D/S. Steep banks on U/S RB. Large gravel bar/island in D/S channel.


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Comment codes:

Notes


3-bbl box culvert; bedrock bottom; middle bbl choked with debrisShallow channel with meander bends & cutbanks on U/S RB & D/S LB. R abutment footing exposed. Miscellaneous concrete debris on RB immediately U/S of bridge.Replaced with A4517Minimal concrete onR abutment WW. Gravel bars in channel. Cutbank on U/S RB. Flagged due to footing exposure at piers & abutments--not confirmed but suspected; bridge in flood.Concreted riprap on both abutments. Flagged due to footing exposure--confirmed on R bent. Old raised road embankments U/S will direct flow through bridge. Concrete riprap on both D/S banks. Dual bridge with A3516 (D/S)Built with 40 deg skew, channel approaches w/o skew. Extension on U/S RWW to stop flow impinging on R embankment. Flagged due to footing exposure--not confirmed but suspected. Old bridge, short, simple spans.Concreted riprap on both abutments. Riprap on L setback. Braided channel U/S & D/S. Steep banks on U/S RB. Large gravel bar/island in D/S channel.


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District 08

3-bbl box culvert; bedrock bottom; middle bbl choked with debrisShallow channel with meander bends & cutbanks on U/S RB & D/S LB. R abutment footing exposed. Miscellaneous concrete debris on RB immediately U/S of bridge.Replaced with A4517Minimal concrete onR abutment WW. Gravel bars in channel. Cutbank on U/S RB. Flagged due to footing exposure at piers & abutments--not confirmed but suspected; bridge in flood.Concreted riprap on both abutments. Flagged due to footing exposure--confirmed on R bent. Old raised road embankments U/S will direct flow through bridge. Concrete riprap on both D/S banks. Dual bridge with A3516 (D/S)Built with 40 deg skew, channel approaches w/o skew. Extension on U/S RWW to stop flow impinging on R embankment. Flagged due to footing exposure--not confirmed but suspected. Old bridge, short, simple spans.Concreted riprap on both abutments. Riprap on L setback. Braided channel U/S & D/S. Steep banks on U/S RB. Large gravel bar/island in D/S channel.

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document.xls

District 09



TypeTotal

MethodMain channel

OverbankLeft



F1091 CARTER CR US060 CARTER 2 160 8.57 Q100 6180 6180 REG 10.3 12.2 L 2.7 5.0 7.7 -- 15.0G770 MIDDLE BR RT00N CARTER 2 52 3.55 Q100 2970 2485 BC 14.0 3.2 L -- -- 18.2 -- 8.0S643 L BLACK RI RT00B CARTER 2 82 12.6 Q100 6350 4585 BC 11.9 0.0 L -- -- 3.9 -- 15.0A4474 HUZZAH CR MO049 CRAWFORD 2 426 84.3 Q100 23100 23100 REG 11.6 -- -- -- -- -- -- --T469 PERKINS CR RT00M CRAWFORD 2 78 2.87 Q100 2670 2670 REG 9.0 9.0 L 0.8 1.7 3.9 -- 13.8X758 MERAMEC RI RT00M CRAWFORD 2 283 198 Q100 33800 26500 BC 17.1 0.0 L 1.4 1.3 8.7 -- 5.8S269 DRY FK RT00H DENT 2 96 14.2 Q100 6390 6390 REG 13.6 9.3 L 8.6 8.5 3.9 -- 21.2A2489 ELEVEN POINT RI US063 HOWELL 2 111 16.5 Q100 7470 7470 REG 13.2 7.8 L -- -- 3.3 -- 17.9G6421 KINGS CR US060 HOWELL 2 43 4.73 Q100 3440 2820 BC 13.8 5.2 L -- -- -- -- 29.1N497 HOWELL CR RT0ZZ HOWELL 2 125 31.5 Q100 11400 8795 BC 14.1 9.6 L -- 11.3 3.3 -- 20.6R332 ELEVEN POINT RI RT00W HOWELL 2 273 195 Q100 42000 42000 REG 21.7 -- -- -- -- -- -- --R830 BR SPRING RI MO142 HOWELL 2 25 43.4 Q100 13300 13300 REG 45.8 -- -- -- -- -- -- --W39 DRY FK HARP CR RT0EE HOWELL 2 34 3.85 Q100 2770 2770 REG 14.8 -- -- -- -- -- -- --W525 BENN BAYOU RT0YY HOWELL 2 60 20.3 Q100 11800 7210 BC 18.7 2.1 L -- -- 6.5 -- 38.9F644 HUFF BR MO049 IRON 2 33 0.52 Q100 1030 1030 REG 8.3 -- -- -- -- -- -- --F989 BR E FK CEDAR CR MO021 IRON 2 54 3.07 Q100 3490 3490 REG 12.9 -- -- -- -- -- -- --F992 E FK CEDAR CR RT00V IRON 2 43 1.27 Q100 1300 1300 REG 8.2 -- -- -- -- -- -- --G568 HAMPTON BR MO049 IRON 2 33 2.45 Q100 3110 3110 REG 16.2 -- -- -- -- -- -- --G570 SUTTON BR MO049 IRON 2 28 0.47 Q100 974 974 REG 8.9 -- -- -- -- -- -- --G633 BRANCH MO049 IRON 2 60 1.96 Q100 2640 2640 REG 10.2 -- -- -- -- -- -- --G879 BIG CR MO049 IRON 2 357 78.3 Q100 27300 20350 BC 12.0 0.7 L -- 6.5 10.6 7.7 4.9A1476 CREEK & RR M0142 OREGON 2 505 229 Q100 40400 40400 REG 14.7 -- -- -- -- -- -- --F1057 STREAM US160 OREGON 2 33 1.20 Q100 1810 1810 REG 11.7 -- -- -- -- -- -- --G801 PINEY CR US160 OREGON 2 113 7.67 Q100 4600 4600 REG 10.4 11.9 L 13.8 11.3 7.7 -- 23.5H173 COX BR US160 OREGON 2 67 4.15 Q100 3560 3175 BC 10.8 3.9 L -- -- 7.8 -- 29.3H174 DRY CR US160 OREGON 2 101 7.03 Q100 5120 5120 REG 11.2 7.7 L -- 0.2 7.8 -- 13.8H921 WARM FK CR MO019 OREGON 2 203 200 Q100 37400 37400 REG 24.2 -- -- -- -- -- -- --R425 JANES CR RT00V OREGON 2 105 9.60 Q100 5450 5450 REG 11.3 -- -- -- -- -- -- --T497 LOUSE CR RT00E OREGON 2 86 5.64 Q100 4170 4170 REG 10.8 -- -- -- -- -- -- --W247 TOWN FK RT0EE OREGON 2 40 2.27 Q100 2530 2530 REG 12.7 -- -- -- -- -- -- --W488 FREDERICK CR RT00Y OREGON 2 160 150 Q100 34500 22300 BC 20.9 0.0 L -- -- 13.1 -- 32.4Y170 FREDERICK CR RT00A OREGON 2 86 33.0 Q100 11800 11800 REG 20.3 -- -- -- -- -- -- --Y171 MOONEY BR RT00A OREGON 2 35 1.73 Q100 2100 2100 REG 12.3 -- -- -- -- -- -- --A524 SPRING CR RT00K PHELPS 2 215 37.0 Q100 12100 12100 REG 11.9 -- -- -- -- -- -- --J1151 L PINEY CR US063 PHELPS 2 343 94.7 Q100 23900 23900 REG 13.5 -- -- -- -- -- -- --Y184 TOWN BR RT00T PHELPS 2 36 2.72 Q100 3230 3230 REG 15.7 -- -- -- -- -- -- --Z828 GASCONADE RI RT00D PHELPS 2 510 2570 Q100 146000 146000 REG 31.5 -- -- -- -- -- -- --N89 BELL CR RT HH PULASKI 2 21 17.2 Q100 12100 6198 BC 32.4 31.7 L -- -- -- -- --A2342 W FK BLACK RI RT0KK REYNOLDS 2 426 59.4 Q100 19100 19100 REG 10.3 -- -- -- -- -- -- --A4211 SINKING CR RT00K REYNOLDS 2 181 55.7 Q100 19900 19900 REG 17.7 -- -- -- -- -- -- --A4578 BEE FK RT0TT REYNOLDS 2 145 13.5 Q100 8460 8460 REG 12.1 -- -- -- -- -- -- --T1000 BLACK RI RT00K REYNOLDS 2 600 497 Q100 71900 71900 REG 18.7 -- -- -- -- -- -- --T1018 BEAR BR SR00K REYNOLDS 2 52 -- Q100 -- -- -- -- -- -- -- -- -- -- --A4242 BUFFALO CR RT00C RIPLEY 2 301 58.5 Q100 20000 20000 REG 13.2 5.0 L 1.8 6.9 8.7 3.3 20.6A4632 CURRENT RI US160 RIPLEY 2 1076 2050 Q100 150000 150000 REG 20.5 -- -- -- -- -- -- --



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RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes19.8 Q500 8570 8570 REG 12.2 14.9 L 5.2 7.1 7.7 -- 18.8 21.5 N N P Y Y Y ? -- Inlaid cobbling on both abutment faces. Old road slab on D/S L setback. Footing exposure on D/S leg of middle bent. On edge of FP for larger creek.31.2 Qimp 2000 2000 BC 12.3 4.9 L -- -- 18.2 -- -- 28.9 Y Y Y Y Y M N -- Built with 20 deg skew, channel parallel road on U/S LB. Footing exposure at pier--apparently founded on bedrock. Large cobbles & boulders in D/S channel.

5.3 Qimp 2820 2820 BC 8.9 1.5 L -- -- 3.9 -- 7.0 -- Y N P N Y Y N -- Concreted riprap on both abutments--held in place by grader blades, slumping. Rock outcrop on L side. Overflow section on RFP.-- Q500 31700 31700 REG 14.0 -- -- -- -- -- -- -- -- P N Y N Y Y Y -- Very well protected with rock bluff on L side & riprap on R abutment & U/S & D/S embankment faces. Piers designed to resist scour. Flagged due to footing exposure--confirmed at pier on rock bluff on L side.

15.2 Q500 3660 3660 REG 10.9 13.6 L 2.5 3.4 3.9 -- 17.4 18.8 N P P Y Y Y N -- Concreted & unconcreted riprap on both abutment faces--marginal on R side. Concrete connecting caps exposed at L bent. Blowhole at bridge. Cutbank on U/S LB.5.8 Qimp 19200 19200 BC 14.1 0.0 L 0.0 0.0 8.7 -- -- -- Y P N P Y N -- -- Old RR embankment U/S, which contricts flow to less than full bridge width. No FP's U/S, RR embankment minimally overtopped at Q100. Gravel and sand channel, deposits to lee of piers also.

21.2 Q500 8690 8690 REG 16.4 14.3 L 12.2 12.0 4.0 -- 23.7 23.7 N P P N Y Y N -- Concreted riprap on both abutments & U/S embankment faces. Large cobbles in D/S channel, sand in channel at bridge. Concrete connecting caps exposed. Contraction scour on both setbacks.10.6 Q500 10200 10200 REG 15.9 12.1 L -- -- 3.3 -- 21.0 15.9 P Y P Y Y N -- -- Channel bends D/S. Cutbank on D/S RB. Along R edge of FP. Blowhole under bridge.29.4 Qimp 2200 2200 BC 11.9 6.5 L -- -- -- -- 24.0 24.6 Y Y P Y Y N -- -- Bridge located on inflection in meander. Cutbanks on U/S L & D/S R banks. Built w/o skew. Minor scour hole at abutment toes.20.7 Qimp 6190 6190 BC 11.4 10.2 L -- 7.2 3.3 -- 17.0 17.2 Y Y N Y Y M N -- Concreted riprap & concrete debris on abutments. Lateral shifting of channl at bridge and U/S. Log jam in D/S channel. Slumped bank on U/S LB.

-- Q500 57900 57900 REG 26.3 -- -- -- -- -- -- -- -- P P Y Y Y Y Y -- Concreted riprap on both abutments. Bedrock outcrop on U/S R side. Old embankment acts as a spurdike on L side. Vegetation in channel. Gravel bar D/S. Flagged due to observed pier scour & scour hole--confirmed, but not a problem.-- Q500 18100 18100 REG 55.1 -- -- -- -- -- -- -- -- Y Y N N N N -- -- Essentially a box culvert over a slough/relief channel. No evidence of past scour or anything to flag as scour susceptible. Flagged due to observed scour hole--unconfirmed.-- Q500 3770 3770 REG 17.8 -- -- -- -- -- -- -- -- Y Y P P Y M N -- Essentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. D/S channel covered with concreted riprap for ~ 20'. No contraction.

37.5 Qimp 2620 2620 BC 10.2 4.2 L -- -- 6.4 -- 26.1 23.2 Y Y P N Y Y N -- Concreted riprap on embankment faces and on wingwalls. Abutments and piers substantially exposed--footing exposure evident; foundations unknown. Bridge at same elev as FP. Photos taken.-- Q500 1430 1430 REG 10.1 -- -- -- -- -- -- -- -- Y Y P P Y N -- -- Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at ~ 3' above bed. Gravel in channel. Minimal contraction before overtopping.-- Q500 4880 4880 REG 15.8 -- -- -- -- -- -- -- -- P P Y Y Y N -- -- Flagged due to footing exposure--confirmed, but whole bridge founded on granite shelf. Only potential danger if foundations not socketted to bedrock.-- Q500 1760 1760 REG 9.8 -- -- -- -- -- -- -- -- P Y Y Y Y M N -- Flagged due to abutment scour--bedrock shelf noted U/S, bridge probably founded on bedrock. Riprap & concrete debris on U/S banks up to elevation of road--minimal contraction before overtopping.-- Q500 4350 4350 REG 19.8 -- -- -- -- -- -- -- -- Y Y P P Y N -- -- Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel in channel. Minimal contraction before overtopping.-- Q500 1350 1350 REG 10.8 -- -- -- -- -- -- -- -- Y Y P P Y N -- -- Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel & non-native sand in channel. Minimal contraction before overtopping.-- Q500 3690 3690 REG 12.5 -- -- -- -- -- -- -- -- P Y P P Y N -- -- Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel & non-native sand in channel. Minimal contraction before overtopping.

22.6 Qimp 13400 13400 BC 9.3 4.1 L -- 3.7 10.5 7.7 -- 20.3 Y N P P Y M N -- Along L edge of FP. Rock outcrop/bluff on L side. Minimal concreted riprap on R abutment. Gravel channel w/ poorly defined RB & meandering low-flow channel. Footing exposure at R main channel bent & R-most R setback bent. Overflow section on RFP.-- Q500 55100 55100 REG 17.7 -- -- -- -- -- -- -- -- N N P P Y Y ? -- Concreted riprap on L abutment & U/S & D/S embankment faces. Rock outcrop on R side with RR tracks. Columns widen at level of stream. Flagged due to observed pier scour & scour hole--not deemed a problem at this site.-- Q500 2510 2510 REG 14.2 -- -- -- -- -- -- -- -- P P Y Y Y N -- -- No flow. Built w/o skew, channel approaches at 20 deg. Minor contraction scour at abutments, but minimal contraction. Gravel bed channel. Flagged due to observed scour hole--confirmed, but not deemed a problem.

28.8 Q500 6280 6280 REG 12.5 15.4 L 16.7 15.3 7.7 -- 29.1 31.6 N N N N Y Y N -- Concreted riprap on both abutment faces. Local scour at both bents. Well vegetated banks.29.5 Qimp 2790 2790 BC 10.0 4.8 L -- -- 7.7 -- 27.7 28.2 Y Y P Y Y M N -- No flow, poorly defined channel at bridge--taken as full bridge length. Large cobbles against vertical abutment faces. Gravel in channel--shifting channel under bridge.28.8 Q500 7070 7070 REG 13.7 10.3 L -- 2.2 7.8 -- 21.9 32.0 P P P Y Y M N -- No flow, poorly defined channel at bridge. Large cobbles against vertical abutment faces. Gravel in channel--shifting channel under bridge. Bedrock outcrop on U/S LB. Contraction scour on R setback.

-- Q500 51000 51000 REG 29.2 -- -- -- -- -- -- -- -- P P P P Y Y Y -- Rock outcrop on L side. Riprap on R abutment & U/S & D/S embankment faces. On outside of bend in channel. Minor local scour on R setback. Flagged due to observed pier scour, scour holes, & cutbank--confirmed, but not deemed to be problems.-- Q500 7450 7450 REG 13.6 -- -- -- -- -- -- -- -- P P Y N Y Y ? -- Concreted riprap on both abutments and partly around on U/S embankment faces. No flow, shallow channel fills whole opening. Appears gravel bar recently removed immediately D/S. Flagged due to observed pier scour & scour hole--confirmed, but not a problem.-- Q500 5740 5740 REG 13.1 -- -- -- -- -- -- -- -- P P N N Y M N -- Shallow channel, wide opening. Minor blowhole at bridge, concrete debris on abutments. No shifting, well-formed banks. Flagged due to an observed hole--confirmed, but not deemed to be a problem-- Q500 3500 3500 REG 15.5 -- -- -- -- -- -- -- -- Y Y Y N Y N -- -- Founded on bedrock shelf. Footing exposure at piers & abutments. If not socketted to bedrock, scour not primary problem, hydraulic forces are.

34.7 Qimp 10100 10100 BC 13.0 2.0 L -- -- 13.0 -- 11.1 19.0 Y Y P Y Y N -- -- Shallow channel, gravel channel. Some lateral shifting--built w/o skew, channel approaches at 15 deg. Along R edge of FP.-- Q500 16000 16000 REG 24.3 -- -- -- -- -- -- -- -- Y Y P N Y Y ? -- Essentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. Stilling basin D/S, with additional scour D/S of outfall. U/S slightly lower than culvert floor. Concreted riprap on WWs and D/S banks. Photos taken-- Q500 2900 2900 REG 15.0 -- -- -- -- -- -- -- -- Y Y P P Y Y ? -- Essentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. Concreted cobbling on WWs.-- Q500 16400 16400 REG 14.2 -- -- -- -- -- -- -- -- P N P P Y Y ? -- Rock bluff on L side. Concreted riprap on R abutment & U/S & D/S embankment faces. Flagged due to footing exposure at pier--confirmed, but footing founded on bedrock.-- Q500 32700 32700 REG 16.3 -- -- -- -- -- -- -- -- P P P Y Y Y Y -- Concreted riprap in good condition on both abutments & U/S & D/S embankment faces. Piers designed to resist scour. High rock bluffs on both sides. Footing exposure at central pier bent (founded on bedrock?)-- Q500 4510 4510 REG 19.2 -- -- -- -- -- -- -- -- Y Y Y P Y Y N -- Essentially a box culvert with a building on top. Appro 100' in length from U/S to D/S. No contraction before being overtopped, spilling into street & circumventing bridge. Flagged due to abutment scour--verified, but not due to scour, rather to degradation.-- Q500 196000 196000 REG 37.6 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In process of being replaced.-- Qimp 295 295 BC 5.2 7.2 L -- -- -- -- -- -- Y Y Y Y N N -- -- 2-bbl box culvert; concrete bottom; heavily armored channel-- Q500 26200 26200 REG 12.5 -- -- -- -- -- -- -- -- N N P P Y Y ? -- Concreted riprap on R abutment & U/S embankment face up to 500-yr flow depth. Minor local scour in channel. Along L edge of FP. Flagged due to observed scour hole & pier scour--confirmed, but not deemed to be a problem at this site.-- Q500 27500 27500 REG 21.6 -- -- -- -- -- -- -- -- P P Y Y Y Y Y -- Very well protected with riprap on both abutments & U/S & D/S embankment faces. Gravel channel with meandering low-flow channel. Appears to move lots of gravel, but no shortage U/S. Rock bluff on D/S LB.-- Q500 11700 11700 REG 14.7 -- -- -- -- -- -- -- -- P P P Y Y Y Y -- Well protected with riprap on both abutments & U/S & D/S embankment faces. Gravel channel, appears to have been recently dredged. Shallow channel shifted to L under bridge. Flagged due to observed scour hole & cutbank--confirmed, not problems.-- Q500 98600 98600 REG 22.6 -- -- -- -- -- -- -- -- N P P Y Y Y ? -- Rockbluff on R side. Riprap on L abutment & U/S & D/S embankment--apron around abutment base. Contraction/abutment scour on L side outside perimeter of apron. Migrating gravel channel.-- Q500 -- -- -- -- -- -- -- -- -- -- -- -- Y Y N N N N -- -- May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.

10.6 Q500 27700 27700 REG 16.1 7.2 L 4.1 9.7 8.7 3.3 23.2 16.3 N P P N Y N -- -- Well designed bridge, probably founded on bedrock--outcrop/bluff on R side. Gravel bars D/S. Minor local contraction scour on L setback. Gently sloped banks at bridge & U/S.-- Q500 203000 203000 REG 24.5 -- -- -- -- -- -- -- -- P P P Y Y Y Y -- Very well protected with rock bluff on R side, riprap on L abutment & U/S & D/S embankment faces, & piers designed to resist scour. Gravel bars in channel. Local scour observed at piers & bents. Flagged due to footing exposure--unconfirmed.




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]


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W6


Z6


AC10


document.xls

District 09

Comment codes:

NotesInlaid cobbling on both abutment faces. Old road slab on D/S L setback. Footing exposure on D/S leg of middle bent. On edge of FP for larger creek.Built with 20 deg skew, channel parallel road on U/S LB. Footing exposure at pier--apparently founded on bedrock. Large cobbles & boulders in D/S channel.Concreted riprap on both abutments--held in place by grader blades, slumping. Rock outcrop on L side. Overflow section on RFP.Very well protected with rock bluff on L side & riprap on R abutment & U/S & D/S embankment faces. Piers designed to resist scour. Flagged due to footing exposure--confirmed at pier on rock bluff on L side.Concreted & unconcreted riprap on both abutment faces--marginal on R side. Concrete connecting caps exposed at L bent. Blowhole at bridge. Cutbank on U/S LB.Old RR embankment U/S, which contricts flow to less than full bridge width. No FP's U/S, RR embankment minimally overtopped at Q100. Gravel and sand channel, deposits to lee of piers also.Concreted riprap on both abutments & U/S embankment faces. Large cobbles in D/S channel, sand in channel at bridge. Concrete connecting caps exposed. Contraction scour on both setbacks.Channel bends D/S. Cutbank on D/S RB. Along R edge of FP. Blowhole under bridge.Bridge located on inflection in meander. Cutbanks on U/S L & D/S R banks. Built w/o skew. Minor scour hole at abutment toes.Concreted riprap & concrete debris on abutments. Lateral shifting of channl at bridge and U/S. Log jam in D/S channel. Slumped bank on U/S LB.Concreted riprap on both abutments. Bedrock outcrop on U/S R side. Old embankment acts as a spurdike on L side. Vegetation in channel. Gravel bar D/S. Flagged due to observed pier scour & scour hole--confirmed, but not a problem.Essentially a box culvert over a slough/relief channel. No evidence of past scour or anything to flag as scour susceptible. Flagged due to observed scour hole--unconfirmed.Essentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. D/S channel covered with concreted riprap for ~ 20'. No contraction.Concreted riprap on embankment faces and on wingwalls. Abutments and piers substantially exposed--footing exposure evident; foundations unknown. Bridge at same elev as FP. Photos taken.Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at ~ 3' above bed. Gravel in channel. Minimal contraction before overtopping.Flagged due to footing exposure--confirmed, but whole bridge founded on granite shelf. Only potential danger if foundations not socketted to bedrock.Flagged due to abutment scour--bedrock shelf noted U/S, bridge probably founded on bedrock. Riprap & concrete debris on U/S banks up to elevation of road--minimal contraction before overtopping.Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel in channel. Minimal contraction before overtopping.Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel & non-native sand in channel. Minimal contraction before overtopping.Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel & non-native sand in channel. Minimal contraction before overtopping.Along L edge of FP. Rock outcrop/bluff on L side. Minimal concreted riprap on R abutment. Gravel channel w/ poorly defined RB & meandering low-flow channel. Footing exposure at R main channel bent & R-most R setback bent. Overflow section on RFP.Concreted riprap on L abutment & U/S & D/S embankment faces. Rock outcrop on R side with RR tracks. Columns widen at level of stream. Flagged due to observed pier scour & scour hole--not deemed a problem at this site.No flow. Built w/o skew, channel approaches at 20 deg. Minor contraction scour at abutments, but minimal contraction. Gravel bed channel. Flagged due to observed scour hole--confirmed, but not deemed a problem.Concreted riprap on both abutment faces. Local scour at both bents. Well vegetated banks.No flow, poorly defined channel at bridge--taken as full bridge length. Large cobbles against vertical abutment faces. Gravel in channel--shifting channel under bridge.No flow, poorly defined channel at bridge. Large cobbles against vertical abutment faces. Gravel in channel--shifting channel under bridge. Bedrock outcrop on U/S LB. Contraction scour on R setback.Rock outcrop on L side. Riprap on R abutment & U/S & D/S embankment faces. On outside of bend in channel. Minor local scour on R setback. Flagged due to observed pier scour, scour holes, & cutbank--confirmed, but not deemed to be problems.Concreted riprap on both abutments and partly around on U/S embankment faces. No flow, shallow channel fills whole opening. Appears gravel bar recently removed immediately D/S. Flagged due to observed pier scour & scour hole--confirmed, but not a problem.Shallow channel, wide opening. Minor blowhole at bridge, concrete debris on abutments. No shifting, well-formed banks. Flagged due to an observed hole--confirmed, but not deemed to be a problemFounded on bedrock shelf. Footing exposure at piers & abutments. If not socketted to bedrock, scour not primary problem, hydraulic forces are.Shallow channel, gravel channel. Some lateral shifting--built w/o skew, channel approaches at 15 deg. Along R edge of FP.Essentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. Stilling basin D/S, with additional scour D/S of outfall. U/S slightly lower than culvert floor. Concreted riprap on WWs and D/S banks. Photos takenEssentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. Concreted cobbling on WWs.Rock bluff on L side. Concreted riprap on R abutment & U/S & D/S embankment faces. Flagged due to footing exposure at pier--confirmed, but footing founded on bedrock.Concreted riprap in good condition on both abutments & U/S & D/S embankment faces. Piers designed to resist scour. High rock bluffs on both sides. Footing exposure at central pier bent (founded on bedrock?)Essentially a box culvert with a building on top. Appro 100' in length from U/S to D/S. No contraction before being overtopped, spilling into street & circumventing bridge. Flagged due to abutment scour--verified, but not due to scour, rather to degradation.In process of being replaced.2-bbl box culvert; concrete bottom; heavily armored channelConcreted riprap on R abutment & U/S embankment face up to 500-yr flow depth. Minor local scour in channel. Along L edge of FP. Flagged due to observed scour hole & pier scour--confirmed, but not deemed to be a problem at this site.Very well protected with riprap on both abutments & U/S & D/S embankment faces. Gravel channel with meandering low-flow channel. Appears to move lots of gravel, but no shortage U/S. Rock bluff on D/S LB.Well protected with riprap on both abutments & U/S & D/S embankment faces. Gravel channel, appears to have been recently dredged. Shallow channel shifted to L under bridge. Flagged due to observed scour hole & cutbank--confirmed, not problems.Rockbluff on R side. Riprap on L abutment & U/S & D/S embankment--apron around abutment base. Contraction/abutment scour on L side outside perimeter of apron. Migrating gravel channel.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.Well designed bridge, probably founded on bedrock--outcrop/bluff on R side. Gravel bars D/S. Minor local contraction scour on L setback. Gently sloped banks at bridge & U/S.Very well protected with rock bluff on R side, riprap on L abutment & U/S & D/S embankment faces, & piers designed to resist scour. Gravel bars in channel. Local scour observed at piers & bents. Flagged due to footing exposure--unconfirmed.



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AT10


document.xls

District 09

Inlaid cobbling on both abutment faces. Old road slab on D/S L setback. Footing exposure on D/S leg of middle bent. On edge of FP for larger creek.Built with 20 deg skew, channel parallel road on U/S LB. Footing exposure at pier--apparently founded on bedrock. Large cobbles & boulders in D/S channel.Concreted riprap on both abutments--held in place by grader blades, slumping. Rock outcrop on L side. Overflow section on RFP.Very well protected with rock bluff on L side & riprap on R abutment & U/S & D/S embankment faces. Piers designed to resist scour. Flagged due to footing exposure--confirmed at pier on rock bluff on L side.Concreted & unconcreted riprap on both abutment faces--marginal on R side. Concrete connecting caps exposed at L bent. Blowhole at bridge. Cutbank on U/S LB.Old RR embankment U/S, which contricts flow to less than full bridge width. No FP's U/S, RR embankment minimally overtopped at Q100. Gravel and sand channel, deposits to lee of piers also.Concreted riprap on both abutments & U/S embankment faces. Large cobbles in D/S channel, sand in channel at bridge. Concrete connecting caps exposed. Contraction scour on both setbacks.Channel bends D/S. Cutbank on D/S RB. Along R edge of FP. Blowhole under bridge.Bridge located on inflection in meander. Cutbanks on U/S L & D/S R banks. Built w/o skew. Minor scour hole at abutment toes.Concreted riprap & concrete debris on abutments. Lateral shifting of channl at bridge and U/S. Log jam in D/S channel. Slumped bank on U/S LB.Concreted riprap on both abutments. Bedrock outcrop on U/S R side. Old embankment acts as a spurdike on L side. Vegetation in channel. Gravel bar D/S. Flagged due to observed pier scour & scour hole--confirmed, but not a problem.Essentially a box culvert over a slough/relief channel. No evidence of past scour or anything to flag as scour susceptible. Flagged due to observed scour hole--unconfirmed.Essentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. D/S channel covered with concreted riprap for ~ 20'. No contraction.Concreted riprap on embankment faces and on wingwalls. Abutments and piers substantially exposed--footing exposure evident; foundations unknown. Bridge at same elev as FP. Photos taken.Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at ~ 3' above bed. Gravel in channel. Minimal contraction before overtopping.Flagged due to footing exposure--confirmed, but whole bridge founded on granite shelf. Only potential danger if foundations not socketted to bedrock.Flagged due to abutment scour--bedrock shelf noted U/S, bridge probably founded on bedrock. Riprap & concrete debris on U/S banks up to elevation of road--minimal contraction before overtopping.Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel in channel. Minimal contraction before overtopping.Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel & non-native sand in channel. Minimal contraction before overtopping.Flagged due to observed scour hole--not a problem. Very small bridge over small creek. Little potential for scour. L.S at approx 3' above bed. Gravel & non-native sand in channel. Minimal contraction before overtopping.Along L edge of FP. Rock outcrop/bluff on L side. Minimal concreted riprap on R abutment. Gravel channel w/ poorly defined RB & meandering low-flow channel. Footing exposure at R main channel bent & R-most R setback bent. Overflow section on RFP.Concreted riprap on L abutment & U/S & D/S embankment faces. Rock outcrop on R side with RR tracks. Columns widen at level of stream. Flagged due to observed pier scour & scour hole--not deemed a problem at this site.No flow. Built w/o skew, channel approaches at 20 deg. Minor contraction scour at abutments, but minimal contraction. Gravel bed channel. Flagged due to observed scour hole--confirmed, but not deemed a problem.Concreted riprap on both abutment faces. Local scour at both bents. Well vegetated banks.No flow, poorly defined channel at bridge--taken as full bridge length. Large cobbles against vertical abutment faces. Gravel in channel--shifting channel under bridge.No flow, poorly defined channel at bridge. Large cobbles against vertical abutment faces. Gravel in channel--shifting channel under bridge. Bedrock outcrop on U/S LB. Contraction scour on R setback.Rock outcrop on L side. Riprap on R abutment & U/S & D/S embankment faces. On outside of bend in channel. Minor local scour on R setback. Flagged due to observed pier scour, scour holes, & cutbank--confirmed, but not deemed to be problems.Concreted riprap on both abutments and partly around on U/S embankment faces. No flow, shallow channel fills whole opening. Appears gravel bar recently removed immediately D/S. Flagged due to observed pier scour & scour hole--confirmed, but not a problem.Shallow channel, wide opening. Minor blowhole at bridge, concrete debris on abutments. No shifting, well-formed banks. Flagged due to an observed hole--confirmed, but not deemed to be a problemFounded on bedrock shelf. Footing exposure at piers & abutments. If not socketted to bedrock, scour not primary problem, hydraulic forces are.Shallow channel, gravel channel. Some lateral shifting--built w/o skew, channel approaches at 15 deg. Along R edge of FP.Essentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. Stilling basin D/S, with additional scour D/S of outfall. U/S slightly lower than culvert floor. Concreted riprap on WWs and D/S banks. Photos takenEssentially a box culvert with concrete floor. Flagged due to scour hole D/S typical of box culvert outfalls. Concreted cobbling on WWs.Rock bluff on L side. Concreted riprap on R abutment & U/S & D/S embankment faces. Flagged due to footing exposure at pier--confirmed, but footing founded on bedrock.Concreted riprap in good condition on both abutments & U/S & D/S embankment faces. Piers designed to resist scour. High rock bluffs on both sides. Footing exposure at central pier bent (founded on bedrock?)Essentially a box culvert with a building on top. Appro 100' in length from U/S to D/S. No contraction before being overtopped, spilling into street & circumventing bridge. Flagged due to abutment scour--verified, but not due to scour, rather to degradation.In process of being replaced.2-bbl box culvert; concrete bottom; heavily armored channelConcreted riprap on R abutment & U/S embankment face up to 500-yr flow depth. Minor local scour in channel. Along L edge of FP. Flagged due to observed scour hole & pier scour--confirmed, but not deemed to be a problem at this site.Very well protected with riprap on both abutments & U/S & D/S embankment faces. Gravel channel with meandering low-flow channel. Appears to move lots of gravel, but no shortage U/S. Rock bluff on D/S LB.Well protected with riprap on both abutments & U/S & D/S embankment faces. Gravel channel, appears to have been recently dredged. Shallow channel shifted to L under bridge. Flagged due to observed scour hole & cutbank--confirmed, not problems.Rockbluff on R side. Riprap on L abutment & U/S & D/S embankment--apron around abutment base. Contraction/abutment scour on L side outside perimeter of apron. Migrating gravel channel.May fail, but not due to scour (contraction, pier, etc) Long term degradation most probable cause. Minimal traffic.Well designed bridge, probably founded on bedrock--outcrop/bluff on R side. Gravel bars D/S. Minor local contraction scour on L setback. Gently sloped banks at bridge & U/S.Very well protected with rock bluff on R side, riprap on L abutment & U/S & D/S embankment faces, & piers designed to resist scour. Gravel bars in channel. Local scour observed at piers & bents. Flagged due to footing exposure--unconfirmed.

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document.xls

District 09



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]F185 TATTLE CR US160 RIPLEY 2 51 1.70 Q100 1970 1386 BC 10.0 0.0 L 2.3 -- 5.2 -- 22.6G407 BR LOGAN CR MO021 RIPLEY 2 22 0.88 Q100 956 956 REG 10.2 -- -- -- -- -- -- --H884 L BLACK RI MO021 RIPLEY 2 143 20.4 Q100 7740 7740 REG 11.8 2.1 L 2.8 4.8 7.7 -- 21.5L378 L BLACK RI MO142 RIPLEY 2 157 209 Q100 30500 18845 BC 18.7 7.4 L 21.9 28.9 26.0 -- 24.0N9 BUZZARD CR RT00B RIPLEY 2 93 11.5 Q100 5070 5070 REG 11.6 10.8 L 9.8 14.6 3.9 -- 20.1P53 DD NO 2 RT00H RIPLEY 3 107 -- Qimp 2450 2450 BC 7.3 1.3 L 5.7 4.5 3.2 -- --P54 DRAINAGE DITCH RT00H RIPLEY 3 71 -- Qimp 1840 1840 BC 7.7 3.6 L -- -- 3.9 -- 17.4P55 DD NO 2 RT00H RIPLEY 3 94 -- Qimp 2010 2010 BC 7.0 1.3 L -- -- 3.2 -- 13.6P676 DD NO 1 RT00W RIPLEY 3 102 -- Qimp 1140 1140 BC 5.7 0.0 L -- -- 3.8 -- --P677 DD NO 3 RT00W RIPLEY 3 102 -- Qimp 4060 4060 BC 12.3 2.7 L -- -- 3.9 -- --S225 DD NO 7 MO142 RIPLEY 3 90 -- Qimp 2170 2170 BC 9.1 6.0 L -- -- 3.9 -- 19.7S226 DRAINAGE DITCH MO142 RIPLEY 3 102 -- Qimp 4770 4770 BC 11.1 0.0 L -- -- 5.5 -- --S814 HARRIS CR MO142 RIPLEY 2 90 8.09 Q100 4470 3995 BC 10.7 5.9 L -- -- 7.8 -- 6.2T758 DD NO 2 MO142 RIPLEY 3 34 -- Qimp 602 602 BC 6.9 0.0 L -- -- 3.9 -- --A3037 CURRENT RI MO106 SHANNON 2 647 1340 Q100 131000 131000 REG 25.6 -- -- -- -- -- -- --A3949 BIG SHAWNEE CR MO106 SHANNON 2 213 18.8 Q100 9720 9720 REG 10.5 -- -- -- -- -- -- --A4564 BARREN FK RT00A SHANNON 2 180 47.4 Q100 18200 18200 REG 16.9 -- -- -- -- -- -- --A4566 SINKING CR RT00A SHANNON 2 257 46.0 Q100 17200 17200 REG 13.2 -- -- -- -- -- -- --K924 JACKS FORK RI MO106 SHANNON 2 385 305 Q100 48000 48000 REG 19.1 -- -- -- -- -- -- --T789 PINE HOLLOW RT00E SHANNON 2 135 22.0 Q100 10600 7400 BC 11.7 2.4 L 4.6 6.2 3.9 -- 18.3A1998 SPRING VALLEY RT00W TEXAS 2 107 6.86 Q100 4600 4600 REG 10.1 -- -- -- -- -- -- --A4462 S JACKS FORK RI RT00Y TEXAS 2 209 87.6 Q100 25700 25700 REG 19.0 -- -- -- -- -- -- --J119 SPRING VALLEY MO017 TEXAS 2 163 24.5 Q100 9510 9510 REG 12.2 3.2 L 3.3 0.9 9.3 -- 18.1T10 ROUBIDOUX CR MO032 TEXAS 2 297 106 Q100 25300 25300 REG 15.4 6.6 L 4.7 4.6 7.8 4.6 24.1A1437 ALLEN BR MO008 WASHINGTON 2 134 5.58 Q100 4660 4660 REG 10.4 3.6 L 1.6 0.1 7.7 -- 8.7A2206 L COURTOIS CR MO 185 WASHINGTON 2 121 4.07 Q100 4000 4000 REG 8.9 0.0 L 4.4 8.0 3.2 -- 11.8A3775 MINERAL FK CR RT047 WASHINGTON 2 422 162 Q100 34500 34500 REG 14.8 -- -- -- -- -- -- --A4388 CEDAR CR MO021 WASHINGTON 2 211 26.0 Q100 12000 12000 REG 11.9 4.1 L 4.4 2.4 7.7 -- 21.4A4401 CUB CR RT00C WASHINGTON 2 345 21.2 Q100 11700 11700 REG 8.8 -- -- -- -- -- -- --A763 INDIAN CR MO185 WASHINGTON 2 260 30.3 Q100 13000 13000 REG 11.0 -- -- -- -- -- -- --X925 BRAZIL CR RT00N WASHINGTON 2 216 31.7 Q100 13700 13700 REG 12.7 5.5 L 3.0 7.5 4.6 -- 21.4Y412 RICHWOODS CR RT A WASHINGTON 2 36 4.58 Q100 3790 2143 BC 12.5 0.0 L -- -- -- -- --Y982 MINERAL FK RT00F WASHINGTON 2 174 117 Q100 30400 30400 REG 23.4 -- -- -- -- -- -- --


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document.xls

District 09


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]7.2 Qimp 802 802 BC 7.2 1.8 C 0.0 -- 5.1 -- 12.9 -- Y Y Y N Y N -- -- Along R edge of very narrow FP. R abutment footing exposed, but appears to be founded on bedrock shelf. Channel in R span--L span is L setback.

-- Q500 1290 1290 REG 12.2 -- -- -- -- -- -- -- -- Y Y P Y Y N -- -- Very small opening--will be overtopped by only 4' depth. Minimal contraction before overtopping. Poorly defined U/S channel approaches at 20 deg skew, causing minor scour hole at R abutment. Level 1+ will not indicate potential scour problems.18.7 Q500 10500 10500 REG 14.2 3.9 L 5.0 7.0 7.7 -- 23.6 21.1 N N P N Y M N -- Concreted riprap on both abutments to stop undermining of abutment caps. Footing exposure & L bent. Bluff on U/S L side. Poorly defined channel under bridge.25.4 Qimp 7190 7190 BC 10.5 7.9 L 6.1 15.2 25.6 -- 13.6 16.8 Y P N Y Y N -- -- On edge of MI river FP (bootheel area). Channel has shifted such that approach is almost not skewed--bridge built w/ 20-25 deg. Overflow section on LFP. Pilings under abutment/end bent caps slightly exposed.19.8 Q500 6840 6840 REG 13.9 13.9 L 14.9 17.7 3.9 -- 22.2 21.8 P P N Y Y N -- -- Contraction scour on both setbacks. Cutbank on U/S LB. Headwalls nearly undermined.18.4 Y P N Y Y N -- -- Levee on U/S LB. Contraction scour on setbacks. Minimal velocities. Lateral shifting & bend in D/S channel.17.9 Y P N N Y M N -- Concreted riprap on both abutments/banks--failed, headwalls nearly undermined.

-- Y P N N Y N -- -- Concrete connecting caps exposed at L abutment. Levee on U/S R side. Shallow channel. Minimal velocity. Blowhole at bridge.-- Y N N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Trees on both banks & in U/S channel--apparently minimal velocities.-- P P N Y Y Y N -- Levees on both U/S & D/S banks. Minimal contraction. Riprap & concrete debris on both abutments. Headwalls slumping.-- Y P N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Discontinuous on R side. Sag in bridge due to subsidence at bent 1 (L main channel bent)-- Y Y N Y Y Y N -- Levees on both U/S & D/S banks. Built w/ 10 deg skew, approaching at 10 deg. Concrete debris on LB/abutment due to impinging flow. Channel bends D/S, cutbank on D/S LB.

19.5 Qimp 3520 3520 BC 9.9 7.1 L -- -- 7.7 -- 3.1 18.2 Y P P Y Y Y ? -- Concreted riprap on both abutments--undermined. Shallow channel. Along L edge of FP.-- Y Y N N Y Y N -- Concreted riprap on both abutments/banks--undermined. Shallow channel. Man-made levees on both U/S & D/S banks.-- Q500 179000 179000 REG 30.9 -- -- -- -- -- -- -- -- N N Y P Y Y ? -- Concreted riprap on L abutment. Tall bridge climbing bluff on L side. Piers designed to resist scour. Likely founded on bedrock--no threats to abutments. Flagged due to observed scour holes, pier scour, cutbank, & riprap condition--all confirmed, no prob.-- Q500 13400 13400 REG 12.7 -- -- -- -- -- -- -- -- P N P P Y Y Y -- Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Flagged due to footing exposure--not seen, maybe recovered by migrating gravel bars.-- Q500 25300 25300 REG 20.6 -- -- -- -- -- -- -- -- N P P N Y Y Y -- Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Old low-water crossing D/S. Channel seems to have migrated to R slightly.-- Q500 23700 23700 REG 16.0 -- -- -- -- -- -- -- -- N P P N Y Y Y -- Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Old low-water crossing D/S.-- Q500 65400 65400 REG 23.0 -- -- -- -- -- -- -- -- N N P N Y Y Y Y Concreted riprap on both abutments. Rock bluff on L side. Spurdike on R side. Local/contraction scour hole on R side--footing exposed at 2nd bent from R end (Founded on bedrock?)

18.3 Qimp 4200 4200 BC 8.3 4.8 C 1.9 3.3 3.9 -- 11.9 11.9 Y P P Y Y M N -- Minimal riprap on abutments. Contraction scour on L setback. Channel shifted to R.-- Q500 6320 6320 REG 12.2 -- -- -- -- -- -- -- -- P P P Y Y Y ? -- Concrete & concreted riprap on both abutments & U/S & D/S embankment faces. Shallow channel, wide opening. Flagged due to pile exposure at bents--bents are pile bents, some local scour evident, but not deemed a problem.-- Q500 35500 35500 REG 23.0 -- -- -- -- -- -- -- -- N P Y Y Y Y Y -- Very well protected with large riprap on both abutments, piers designed to resist scour, & gravel channel. Flagged due to pier scour, cutbank & scour holes--all confirmed, but not deemed to be problems at this site.

14.8 Q500 13000 13000 REG 14.8 7.6 L 5.3 2.7 9.3 -- 21.0 19.5 N P P Y Y M N -- Concreted riprap on abutment faces. Substantial footing exposure at bent 3.23.9 Q500 34600 34600 REG 18.5 9.4 L 7.5 7.4 7.9 4.6 26.9 26.7 N P P Y Y Y N -- Concreted riprap on both abutments to stop headwall undermining. Concrete connecting caps exposed on R setback bent. Local & contraction scour on L setback.19.8 Q500 6460 6460 REG 12.0 4.7 L 4.1 2.7 7.7 -- 12.9 21.2 N N P Y Y N -- -- Meandering channel--cutbanks on U/S RB & LB at bridge. Sand & gravel channel. Minimal riprap on upper L abutment face.13.6 Q500 5570 5570 REG 10.9 2.2 L 6.7 10.9 3.3 -- 15.6 17.4 N P Y P ? Y ? -- Abutments covered with concreted riprap

-- Q500 47300 47300 REG 17.9 -- -- -- -- -- -- -- -- N P P Y Y N -- Y Along L edge of FP. Rock outcrop/bluff on U/S R side. Old road embankment covered with riprap on U/S R side acts as spurdike--contraction scour hole is present, but ends at U/S bridge face. Minor contraction scour on R setback. Large cobbles on LB.21.0 Q500 16600 16600 REG 14.5 6.6 L 6.7 4.6 7.7 -- 23.7 23.2 N P Y N Y N -- -- Old road grade embankments U/S, may act as earthen spurdikes. Granite outcrop on D/S LB. Detention pond on U/S LFP. Very coarse gravel & cobbles in channel at bridge.

-- Q500 16300 16300 REG 10.7 -- -- -- -- -- -- -- -- N N Y N Y N -- -- Very wide bridge with respect to flow. 500-yr flow depth approx 7'--doesn't flow over setbacks. Flagged due to footing exposure--confirmed, but obviously founded on bedrock shelf observed U/S & at bridge.-- Q500 18000 18000 REG 13.4 -- -- -- -- -- -- -- -- P N P Y Y N -- -- Along L edge of FP. L abutment on bedrock shelf. Flagged due to footing exposure--unconfirmed; perhaps recovered by migrating gravel. Likely founded on bedrock. Minor local & contraction scour on R setback.

9.9 Q500 18900 18900 REG 15.5 7.1 L 5.2 10.8 4.6 -- 23.8 15.6 Y Y P P Y M N -- Marginal riprap & concreted riprap on both abutments & U/S embankment faces. Large contraction/abutment scour hole on L setback. Built with 10 deg skew; channel approaches at 0 deg. Appears to be shifted to right.-- Qimp 495 495 BC 5.2 0.0 L -- -- -- -- -- -- Y Y N N N N -- -- 4-bbl box culvert; bedrock bottom; U/S channel is bedrock; row of "extra" piers in R bbl-- Q500 41900 41900 REG 28.4 -- -- -- -- -- -- -- -- Y P P Y Y N -- -- Bridge being worked on--difficult to do Level 1+. Flagged due to unknown pier scour--appears to be founded on bedrock; rock bluff on L side. Contraction/abutment scour on L setback. Bridge generally in poor shape structurally.


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document.xls

District 09

Comment codes:

Notes


Along R edge of very narrow FP. R abutment footing exposed, but appears to be founded on bedrock shelf. Channel in R span--L span is L setback.Very small opening--will be overtopped by only 4' depth. Minimal contraction before overtopping. Poorly defined U/S channel approaches at 20 deg skew, causing minor scour hole at R abutment. Level 1+ will not indicate potential scour problems.Concreted riprap on both abutments to stop undermining of abutment caps. Footing exposure & L bent. Bluff on U/S L side. Poorly defined channel under bridge.On edge of MI river FP (bootheel area). Channel has shifted such that approach is almost not skewed--bridge built w/ 20-25 deg. Overflow section on LFP. Pilings under abutment/end bent caps slightly exposed.Contraction scour on both setbacks. Cutbank on U/S LB. Headwalls nearly undermined.Levee on U/S LB. Contraction scour on setbacks. Minimal velocities. Lateral shifting & bend in D/S channel.Concreted riprap on both abutments/banks--failed, headwalls nearly undermined.Concrete connecting caps exposed at L abutment. Levee on U/S R side. Shallow channel. Minimal velocity. Blowhole at bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Trees on both banks & in U/S channel--apparently minimal velocities.Levees on both U/S & D/S banks. Minimal contraction. Riprap & concrete debris on both abutments. Headwalls slumping.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Discontinuous on R side. Sag in bridge due to subsidence at bent 1 (L main channel bent)Levees on both U/S & D/S banks. Built w/ 10 deg skew, approaching at 10 deg. Concrete debris on LB/abutment due to impinging flow. Channel bends D/S, cutbank on D/S LB.Concreted riprap on both abutments--undermined. Shallow channel. Along L edge of FP.Concreted riprap on both abutments/banks--undermined. Shallow channel. Man-made levees on both U/S & D/S banks.Concreted riprap on L abutment. Tall bridge climbing bluff on L side. Piers designed to resist scour. Likely founded on bedrock--no threats to abutments. Flagged due to observed scour holes, pier scour, cutbank, & riprap condition--all confirmed, no prob.Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Flagged due to footing exposure--not seen, maybe recovered by migrating gravel bars.Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Old low-water crossing D/S. Channel seems to have migrated to R slightly.Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Old low-water crossing D/S.Concreted riprap on both abutments. Rock bluff on L side. Spurdike on R side. Local/contraction scour hole on R side--footing exposed at 2nd bent from R end (Founded on bedrock?)Minimal riprap on abutments. Contraction scour on L setback. Channel shifted to R.Concrete & concreted riprap on both abutments & U/S & D/S embankment faces. Shallow channel, wide opening. Flagged due to pile exposure at bents--bents are pile bents, some local scour evident, but not deemed a problem.Very well protected with large riprap on both abutments, piers designed to resist scour, & gravel channel. Flagged due to pier scour, cutbank & scour holes--all confirmed, but not deemed to be problems at this site.Concreted riprap on abutment faces. Substantial footing exposure at bent 3.Concreted riprap on both abutments to stop headwall undermining. Concrete connecting caps exposed on R setback bent. Local & contraction scour on L setback.Meandering channel--cutbanks on U/S RB & LB at bridge. Sand & gravel channel. Minimal riprap on upper L abutment face.Abutments covered with concreted riprapAlong L edge of FP. Rock outcrop/bluff on U/S R side. Old road embankment covered with riprap on U/S R side acts as spurdike--contraction scour hole is present, but ends at U/S bridge face. Minor contraction scour on R setback. Large cobbles on LB.Old road grade embankments U/S, may act as earthen spurdikes. Granite outcrop on D/S LB. Detention pond on U/S LFP. Very coarse gravel & cobbles in channel at bridge.Very wide bridge with respect to flow. 500-yr flow depth approx 7'--doesn't flow over setbacks. Flagged due to footing exposure--confirmed, but obviously founded on bedrock shelf observed U/S & at bridge.Along L edge of FP. L abutment on bedrock shelf. Flagged due to footing exposure--unconfirmed; perhaps recovered by migrating gravel. Likely founded on bedrock. Minor local & contraction scour on R setback.Marginal riprap & concreted riprap on both abutments & U/S embankment faces. Large contraction/abutment scour hole on L setback. Built with 10 deg skew; channel approaches at 0 deg. Appears to be shifted to right.4-bbl box culvert; bedrock bottom; U/S channel is bedrock; row of "extra" piers in R bblBridge being worked on--difficult to do Level 1+. Flagged due to unknown pier scour--appears to be founded on bedrock; rock bluff on L side. Contraction/abutment scour on L setback. Bridge generally in poor shape structurally.


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AT10


document.xls

District 09

Along R edge of very narrow FP. R abutment footing exposed, but appears to be founded on bedrock shelf. Channel in R span--L span is L setback.Very small opening--will be overtopped by only 4' depth. Minimal contraction before overtopping. Poorly defined U/S channel approaches at 20 deg skew, causing minor scour hole at R abutment. Level 1+ will not indicate potential scour problems.Concreted riprap on both abutments to stop undermining of abutment caps. Footing exposure & L bent. Bluff on U/S L side. Poorly defined channel under bridge.On edge of MI river FP (bootheel area). Channel has shifted such that approach is almost not skewed--bridge built w/ 20-25 deg. Overflow section on LFP. Pilings under abutment/end bent caps slightly exposed.Contraction scour on both setbacks. Cutbank on U/S LB. Headwalls nearly undermined.Levee on U/S LB. Contraction scour on setbacks. Minimal velocities. Lateral shifting & bend in D/S channel.Concreted riprap on both abutments/banks--failed, headwalls nearly undermined.Concrete connecting caps exposed at L abutment. Levee on U/S R side. Shallow channel. Minimal velocity. Blowhole at bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Trees on both banks & in U/S channel--apparently minimal velocities.Levees on both U/S & D/S banks. Minimal contraction. Riprap & concrete debris on both abutments. Headwalls slumping.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Discontinuous on R side. Sag in bridge due to subsidence at bent 1 (L main channel bent)Levees on both U/S & D/S banks. Built w/ 10 deg skew, approaching at 10 deg. Concrete debris on LB/abutment due to impinging flow. Channel bends D/S, cutbank on D/S LB.Concreted riprap on both abutments--undermined. Shallow channel. Along L edge of FP.Concreted riprap on both abutments/banks--undermined. Shallow channel. Man-made levees on both U/S & D/S banks.Concreted riprap on L abutment. Tall bridge climbing bluff on L side. Piers designed to resist scour. Likely founded on bedrock--no threats to abutments. Flagged due to observed scour holes, pier scour, cutbank, & riprap condition--all confirmed, no prob.Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Flagged due to footing exposure--not seen, maybe recovered by migrating gravel bars.Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Old low-water crossing D/S. Channel seems to have migrated to R slightly.Very well protected with riprap on abutments & U/S & D/S embankment faces, & piers designed to resist scour. Old low-water crossing D/S.Concreted riprap on both abutments. Rock bluff on L side. Spurdike on R side. Local/contraction scour hole on R side--footing exposed at 2nd bent from R end (Founded on bedrock?)Minimal riprap on abutments. Contraction scour on L setback. Channel shifted to R.Concrete & concreted riprap on both abutments & U/S & D/S embankment faces. Shallow channel, wide opening. Flagged due to pile exposure at bents--bents are pile bents, some local scour evident, but not deemed a problem.Very well protected with large riprap on both abutments, piers designed to resist scour, & gravel channel. Flagged due to pier scour, cutbank & scour holes--all confirmed, but not deemed to be problems at this site.Concreted riprap on abutment faces. Substantial footing exposure at bent 3.Concreted riprap on both abutments to stop headwall undermining. Concrete connecting caps exposed on R setback bent. Local & contraction scour on L setback.Meandering channel--cutbanks on U/S RB & LB at bridge. Sand & gravel channel. Minimal riprap on upper L abutment face.Abutments covered with concreted riprapAlong L edge of FP. Rock outcrop/bluff on U/S R side. Old road embankment covered with riprap on U/S R side acts as spurdike--contraction scour hole is present, but ends at U/S bridge face. Minor contraction scour on R setback. Large cobbles on LB.Old road grade embankments U/S, may act as earthen spurdikes. Granite outcrop on D/S LB. Detention pond on U/S LFP. Very coarse gravel & cobbles in channel at bridge.Very wide bridge with respect to flow. 500-yr flow depth approx 7'--doesn't flow over setbacks. Flagged due to footing exposure--confirmed, but obviously founded on bedrock shelf observed U/S & at bridge.Along L edge of FP. L abutment on bedrock shelf. Flagged due to footing exposure--unconfirmed; perhaps recovered by migrating gravel. Likely founded on bedrock. Minor local & contraction scour on R setback.Marginal riprap & concreted riprap on both abutments & U/S embankment faces. Large contraction/abutment scour hole on L setback. Built with 10 deg skew; channel approaches at 0 deg. Appears to be shifted to right.4-bbl box culvert; bedrock bottom; U/S channel is bedrock; row of "extra" piers in R bblBridge being worked on--difficult to do Level 1+. Flagged due to unknown pier scour--appears to be founded on bedrock; rock bluff on L side. Contraction/abutment scour on L setback. Bridge generally in poor shape structurally.

BN BO BP123456789

10565758596061626364656667686970717273747576777879808182838485868788

document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft



A2837 GRASSY CR RT0MM BOLLINGER 2 124 11.6 Q100 6570 6570 REG 11.4 -- -- -- -- -- -- --A3204 CROOKED CR MO034 BOLLINGER 2 212 75.9 Q100 19400 19400 REG 15.9 -- -- -- -- -- -- --A3205 HURRICANE RI MO034 BOLLINGER 2 146 33.8 Q100 12100 12100 REG 15.0 -- -- -- -- -- -- --A4577 CASTOR RI OF MO034 BOLLINGER 2 373 242 Q100 43700 43700 REG 18.4 -- -- -- -- -- -- --G314 LONGS CR MO051 BOLLINGER 2 43 2.20 Q100 2620 2140 BC 11.7 5.6 L 3.5 -- -- -- 30.6G321 DIVERSION CHAN MO091 BOLLINGER 3 596 -- Qimp -- -- -- -- -- -- -- -- -- -- --G450 BUCKSKIN CR MO072 BOLLINGER 2 38 1.35 Q100 1820 1625 BC 10.3 7.4 L -- -- -- -- 28.9H372 CASTOR RI OF MO034 BOLLINGER 2 67 1.97 Q100 2120 2120 REG 8.4 14.9 L -- -- 6.4 -- 29.3H673 DRY CR MO091 BOLLINGER 2 83 13.5 Q100 6280 5750 BC 13.6 3.8 L 6.8 9.7 7.8 -- 29.4H860 CANE CR MO051 BOLLINGER 2 130 22.3 Q100 7790 6000 BC 12.4 0.0 L 2.3 6.6 11.1 -- 11.6H894 CLUB CR OF MO051 BOLLINGER 2 89 16.0 Q100 7700 7700 REG 15.4 -- -- -- -- -- -- --H895 CANE CR OF MO051 BOLLINGER 2 37 0.49 Q100 871 871 REG 7.0 -- -- -- -- -- -- --J103 CASTOR RI MO051 BOLLINGER 2 399 422 Q100 58400 47304 EST 18.6 12.1 L 16.1 25.0 10.7 7.8 22.0S815 SLAGLE CR RT00P BOLLINGER 2 94 5.16 Q100 3020 2675 BC 9.5 0.0 L 6.9 7.0 3.9 -- 9.1X54 LITTLE RI DD NO 1 RT00V BOLLINGER 3 60 -- Qimp 1220 1220 BC 7.5 0.9 L 5.4 6.4 3.2 -- 12.0X772 GIPSY CR RT00E BOLLINGER 2 107 3.83 Q100 3640 3640 REG 8.8 -- -- -- -- -- -- --A2470 ST FRANCIS RI RT00U BUTLER 3 364 -- Qimp -- -- -- -- -- -- -- -- -- -- --A2839 PIKE CR DD MO142 BUTLER 2 119 15.8 Q100 6210 6210 REG 11.3 -- -- -- -- -- -- --A3244 ACKERMAN BR MO053 BUTLER 3 132 -- Qimp 5840 5840 BC 12.5 2.6 L -- 14.2 3.9 -- --A3246 DD NO 6 MO053 BUTLER 3 143 -- Qimp 3100 3100 BC 7.8 3.2 L -- -- 3.9 -- --A3247 MENORKENUT SL MO053 BUTLER 3 110 -- Qimp 3090 3090 BC 8.1 1.2 L -- 8.9 3.9 -- --A3266 BLACK RI & RR & RD BU060 BUTLER 2 431 1250 Q100 114000 114000 REG 30.1 -- -- -- -- -- -- --A3267 PAL SLOUGH BU060 BUTLER 2 355 3.79 Q100 1690 1690 REG 2.7 -- -- -- -- -- -- --A3274 BLACK RI US067 BUTLER 2 853 1160 Q100 115000 115000 REG 20.1 -- -- -- -- -- -- --A3683 FLOOD RELIEF CHAN 1 BU060 BUTLER 2 228 0.88 Q100 527 527 REG 1.7 -- -- -- -- -- -- --A3708 ST FRANCIS RI US060 BUTLER 3 294 -- Qimp -- -- -- -- -- -- -- -- -- -- --A3725 BLACK RI US060 BUTLER 2 431 1250 Q100 114000 114000 REG 30.1 -- -- -- -- -- -- --A3898 CANE CR OF US067 BUTLER 2 250 171 Q100 32100 32100 REG 19.5 -- -- -- -- -- -- --A4331 PIKE CR US067 BUTLER 2 142 14.8 Q100 6460 6460 REG 10.4 -- -- -- -- -- -- --A4370 DD NO 1 MO053 BUTLER 3 139 -- Qimp 8030 8030 BC 12.5 10.3 L -- -- 3.9 -- 21.2A4387 BLACK RI MO053 BUTLER 3 1466 -- Qimp -- -- -- -- -- -- -- -- -- -- --A595 PIKE CR US067 BUTLER 2 147 14.8 Q100 6460 6460 REG 10.2 -- -- -- -- -- -- --F558 BUCK CR RT00W BUTLER 2 23 1.81 Q100 1450 1011 BC 10.8 0.0 L -- -- -- -- 7.8G277 DD NO 1 RT00B BUTLER 3 78 -- Qimp 3170 3170 BC 10.5 2.5 L -- -- 5.1 -- --G278 BLUE SPRING DD 1 RT00B BUTLER 3 68 -- Qimp 2450 2450 BC 9.4 14.1 L -- -- 5.1 -- 20.0G279 DD NO 12 RT00B BUTLER 3 43 -- Qimp 983 983 BC 7.2 2.5 L -- -- 5.1 -- --G280 DD NO 11 MO051 BUTLER 3 50 -- Qimp 1310 1310 BC 7.9 1.7 L -- -- -- -- --G852 CANE CR RT0PP BUTLER 2 212 70.5 Q100 17800 16300 BC 15.6 0.0 L 3.4 0.2 24.9 9.7 26.7J922 ST FRANCIS RI M0051 BUTLER 3 331 -- Qimp 26000 26000 BC 17.7 0.0 L -- 12.5 14.5 6.5 --K263 BLACK RI & RR & RD BU060 BUTLER 2 399 1250 Q100 118000 118000 REG 32.2 -- -- -- -- -- -- --L603 DD NO 31 RT0CC BUTLER 3 77 -- Qimp 1510 1510 BC 6.5 0.0 L 8.3 7.5 3.8 -- 27.2N762 TEN MILE CR RT0TT BUTLER 2 214 58.8 Q100 16500 16500 REG 14.3 -- -- -- -- -- -- --N884 CANE CR OF RT0EE BUTLER 3 90 -- Qimp 3300 3300 BC 9.5 0.9 L -- -- 5.1 -- --S236 NEELYVILLE DD MO142 BUTLER 3 61 -- Qimp 641 641 BC 5.5 3.3 L -- -- 3.8 -- 19.7S524 CANE CR MO142 BUTLER 3 118 -- Qimp -- -- -- -- -- -- -- -- -- -- --



Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]


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J6


M6


C7


D7


E7


G7


P10


document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right

RR RD[ft] [ft] [ft] Type [ft] [ft] [ft] [ft] [ft] [ft] SD Notes-- Q500 9030 9030 REG 13.9 -- -- -- -- -- -- -- -- P P P Y Y Y Y -- Well protected w/ riprap on both abutments & both embankment faces. Wide shallow gravel channel. Flagged due to observed scour hole--confirmed, but not deemed to be a problem due to wide shallow channel configuration.-- Q500 26400 26400 REG 19.1 -- -- -- -- -- -- -- -- N P P N Y Y ? -- Large riprap on both abutments & U/S embankment faces; piers designed to resist scour. Wide, shallow channel. Flagged due to an observed scour hole--not deemed to be a problem.-- Q500 16500 16500 REG 18.0 -- -- -- -- -- -- -- -- N P P N N Y Y -- Large riprap on both abutments & U/S embankment faces; piers designed to resist scour. Recent mining in channel. Flagged due to observed pier scour & 2 scour holes--not deemed to be problems.-- Q500 59800 59800 REG 22.3 -- -- -- -- -- -- -- -- N N P Y Y Y Y -- Over Castor River; overflow bridge on RFP A4576. Well protected w/ riprap on both abutments & both embankment faces. Wide relatively shallow gravel channel. Flagged due to footing exposure at bent 2--unable to confirm, but piers designed to resist scour.

28.7 Qimp 1660 1660 BC 10.0 7.4 L 2.1 -- -- -- 28.0 24.0 Y Y Y P Y N -- -- Footing exposure at both abutments. Large gravel in channel. Mild cutbank on U/S LB.-- Y N N N Y Y Y -- Levee on RB/RFP. Riprap on R abutment face. Riprap on L abutment & U/S & D/S embankment faces. Overflow section on LFP. Mild contraction scour on L setback. Piers designed to resist scour.

29.4 Qimp 1430 1430 BC 9.5 8.4 L -- -- -- -- 26.9 28.0 Y Y Y Y Y N -- -- Abutment scour at both abutments; erosion at U/S L WW. Channel meanders substantially U/S. Bridge built w/o skew, channel approaches at 15 deg.29.3 Q500 2920 2920 REG 10.2 17.0 L -- -- 6.4 -- 31.7 31.7 P P N N N Y Y -- Riprap on both banks/abutments; over stagnant pool approx 7' deep. Flagged due to unknown pier scour--not suspected to be a problem.30.8 Qimp 5220 5220 BC 12.8 6.1 L 5.9 8.6 7.8 -- 28.0 29.9 Y Y N Y Y Y N -- Riprap on both banks/setbacks/abutments. Vertical abutments w/o wingwalls set back from channel (1.00 & .55 = .82). Minor local scour on R setback. Cutbank on U/S LB due to bend.18.6 Qimp 4210 4210 BC 10.0 4.0 C 0.1 4.2 11.1 -- 2.3 14.2 Y Y P Y Y Y N -- Inlaid cobbling on LB/abutment. Contraction & local scour on RSB. Bridge built with 15 deg skew, channel approaches at 40 deg.

-- Q500 10500 10500 REG 18.5 -- -- -- -- -- -- -- -- P P N P Y M N -- Shallow channel with three (3) approach channels (small). Concreted riprap on L abutment toe, cobbles on R abutment. Flagged due to riprap condition & cutbank--confirmed, but shallow channel make neither a problem.-- Q500 1200 1200 REG 8.5 -- -- -- -- -- -- -- -- Y P Y N Y Y ? -- Both abutment toes heavily protected with concreted riprap. Channel depth approx 3', with cobbles in channel. Flagged due to unknown pier scour--not suspected to be undermined. Mild concraction scour in channel.

26.5 Q500 79500 64395 EST 22.3 14.5 L 21.1 30.8 10.7 7.8 25.4 29.9 N Y N N Y N -- -- Overflow bridge on LFP. Conctraction/abutment & local scour on L setback filled with riprap. Minor blowhole at bridge. High, steep bank on LB.9.1 Qimp 2330 2330 BC 8.5 0.0 L 6.0 6.2 3.9 -- 5.1 5.1 Y N N N Y M N -- Minimal concreted riprap on both abutments. Concrete connecting caps exposed at R bent.9.6 P P N P N Y ? -- Both abutments fully protected by riprap. Concrete connecting caps exposed on R bent.

-- Q500 5040 5040 REG 10.7 -- -- -- -- -- -- -- -- P P P N Y Y Y -- Well protected with riprap on both abutments & U/S & D/S embankment faces. Shallow gravel channel. Mild local scour at bents.-- P N N P N Y Y -- In mild flood--unable to see pier foundations. Very well protected with riprap on both abutments/banks, piers designed to resist scour. Discontinuous levees on both U/S & D/S banks--only minor contraction at bridge. On bend in channel--cutbanks U/S & D/S-- Q500 8390 8390 REG 13.6 -- -- -- -- -- -- -- -- N N N N Y N -- -- Channelized, shallow channel with stable banks. Appears to have had some downcutting. Flagged due to pile exposure at abutments--not confirmed, no exposure evident at stable banks.

10.1 N P N N N M N -- Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge. Channel deeply dredged!10.1 N P N N N N -- -- Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on R abutment/bank. Cutbank on LB at bridge. Road on U/S LFP.

7.8 P Y N N N N -- -- Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on L abutment/bank.-- Q500 155000 155000 REG 36.2 -- -- -- -- -- -- -- -- N N N N N N -- -- Flagged due to unknown pier scour--piers on banks w/ no instabilities U/S, D/S, or at bridge. Levee on LB, RR embankment on RB.-- Q500 2220 2220 REG 3.2 -- -- -- -- -- -- -- -- N N N N N N -- -- Over slough--little to no velocities. Levees on both banks. Shallow, poorly defined channel. Flagged due to pile exposure at abutments--not confirmed, no problems noted.-- Q500 157000 157000 REG 24.2 -- -- -- -- -- -- -- -- N N P P Y Y Y -- Well protected with riprap on both abutments & U/S & D/S embankment faces. Flagged due to unknown pier scour--mild local scour at setback piers, but piers designed to resist scour. Gravel mining on both U/S & D/S RFPs.-- Q500 684 684 REG 2.0 -- -- -- -- -- -- -- -- N N N N N Y Y -- Well protected with riprap on both abutments. Flagged due to pile exposure at piers--piers are pile bents; possible exposure, but nothing substantial. Shallow, poorly defined channel.-- P P N N Y Y Y -- D/S of A3709 (not flagged). Riprap on L bank/abutment due to channel bend. Levees on both banks. Piers designed to resist scour. Gully erosion on RB.-- Q500 155000 155000 REG 36.2 -- -- -- -- -- -- -- -- N N N Y N Y Y -- Riprap on R abutment & U/S embankment face. Bluff on L side U/S & D/S. Well vegetated, stable banks U/S; cutbank on D/S LB. U/S of new east-bound bridge. Flagged due to unknown pier scour--possibly founded on bedrock; otherwise designed to resist scour.-- Q500 43600 43600 REG 23.4 -- -- -- -- -- -- -- -- N P N N Y Y Y -- Very well protected with riprap on both abutments, banks, & U/S embankment faces. Riprap on levee on D/S LFP. Mild local scour at L bent. Over stagnant slough.-- Q500 8770 8770 REG 12.5 -- -- -- -- -- -- -- -- N P N N N Y Y -- U/S of A595. Very well protected with riprap on abutments & U/S & D/S embankment faces. Shallow, channelized channel.

14.3 N P N P N M N -- Moderate riprap protection on R abutment/bank. Cutbank on LB at bridge. Road on U/S LFP.-- N P N N ? N -- -- None-- Q500 8770 8770 REG 12.3 -- -- -- -- -- -- -- -- N P N N N N -- -- D/S of A4331. Minimal contraction due to U/S bridge. Concrete debris on L abutment face. Shallow, channelized channel.

30.4 Qimp 572 572 BC 7.7 1.9 L -- -- -- -- -- 23.5 Y Y N Y Y N -- -- Overflow section on RFP. Very small creek. Scour hole on L abutment toe. Built w/o skew, channel approaches at 25 deg.-- P Y N N N N -- -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Mass wasting on banks under bridge.

18.9 P Y N Y N N -- -- Mass wasting on U/S LB; slumping on both banks under bridge. RR bridge D/S approx 1 bridge length.11.9 P Y N N N Y ? -- Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Well protected with concreted riprap on both banks/abutments

-- P Y N N N N -- -- Dredge/man-made levees on both U/S & D/S banks. RR bridge U/S w/o additional constriction. R abutment slightly undercut.22.5 Qimp 14800 14800 BC 14.7 0.0 L 2.8 0.0 24.9 9.7 24.3 20.1 Y Y P Y Y Y ? -- Riprap on both abutments & U/S embankment faces; also on R setback & U/S RB. Short spans on L approach trap substantial debris. Contraction & local scour on L setback & D/S. Bridge built w/o skew, channel approaches at 30 deg due to meander.17.2 P N N Y Y Y N -- Inlaid cobbling on both abutments. Levee on U/S RFP. Small levee at road elevation on LB.

-- Q500 160000 160000 REG 38.6 -- -- -- -- -- -- -- -- N N N N N N -- -- Flagged due to unknown pier scour--piers on banks w/ no instabilities U/S, D/S, or at bridge. Levee on LB, RR embankment on RB.27.2 P Y N N N M ? -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on L abutment/bank.

-- Q500 22500 22500 REG 17.3 -- -- -- -- -- -- -- -- N P P P N Y ? -- Riprap on L abutment & U/S embankment face; concrete debris on R abutment & U/S embankment face. Shallow channel w/ well vegetated banks U/S & D/S. Channel is shifted to L. Flagged due to pier scour, abut pile exposure, & riprap condition--confirmed, but not problems.-- P Y N N N N -- -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. U/S FPs thick timber & underbrush. Cutting of banks under bridge.-- Y Y N N N N -- -- Channel parallels road U/S RFP.-- -- -- -- -- -- -- -- -- Well protected banks & abutments. Levees on all U/S & D/S banks. Unable to see pier foundations.




Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]


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W6


Z6


AC10


document.xls

District 10

Comment codes:

NotesWell protected w/ riprap on both abutments & both embankment faces. Wide shallow gravel channel. Flagged due to observed scour hole--confirmed, but not deemed to be a problem due to wide shallow channel configuration.Large riprap on both abutments & U/S embankment faces; piers designed to resist scour. Wide, shallow channel. Flagged due to an observed scour hole--not deemed to be a problem.Large riprap on both abutments & U/S embankment faces; piers designed to resist scour. Recent mining in channel. Flagged due to observed pier scour & 2 scour holes--not deemed to be problems.Over Castor River; overflow bridge on RFP A4576. Well protected w/ riprap on both abutments & both embankment faces. Wide relatively shallow gravel channel. Flagged due to footing exposure at bent 2--unable to confirm, but piers designed to resist scour.Footing exposure at both abutments. Large gravel in channel. Mild cutbank on U/S LB.Levee on RB/RFP. Riprap on R abutment face. Riprap on L abutment & U/S & D/S embankment faces. Overflow section on LFP. Mild contraction scour on L setback. Piers designed to resist scour.Abutment scour at both abutments; erosion at U/S L WW. Channel meanders substantially U/S. Bridge built w/o skew, channel approaches at 15 deg.Riprap on both banks/abutments; over stagnant pool approx 7' deep. Flagged due to unknown pier scour--not suspected to be a problem.Riprap on both banks/setbacks/abutments. Vertical abutments w/o wingwalls set back from channel (1.00 & .55 = .82). Minor local scour on R setback. Cutbank on U/S LB due to bend.Inlaid cobbling on LB/abutment. Contraction & local scour on RSB. Bridge built with 15 deg skew, channel approaches at 40 deg.Shallow channel with three (3) approach channels (small). Concreted riprap on L abutment toe, cobbles on R abutment. Flagged due to riprap condition & cutbank--confirmed, but shallow channel make neither a problem.Both abutment toes heavily protected with concreted riprap. Channel depth approx 3', with cobbles in channel. Flagged due to unknown pier scour--not suspected to be undermined. Mild concraction scour in channel.Overflow bridge on LFP. Conctraction/abutment & local scour on L setback filled with riprap. Minor blowhole at bridge. High, steep bank on LB.Minimal concreted riprap on both abutments. Concrete connecting caps exposed at R bent.Both abutments fully protected by riprap. Concrete connecting caps exposed on R bent.Well protected with riprap on both abutments & U/S & D/S embankment faces. Shallow gravel channel. Mild local scour at bents.In mild flood--unable to see pier foundations. Very well protected with riprap on both abutments/banks, piers designed to resist scour. Discontinuous levees on both U/S & D/S banks--only minor contraction at bridge. On bend in channel--cutbanks U/S & D/SChannelized, shallow channel with stable banks. Appears to have had some downcutting. Flagged due to pile exposure at abutments--not confirmed, no exposure evident at stable banks.Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge. Channel deeply dredged!Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on R abutment/bank. Cutbank on LB at bridge. Road on U/S LFP.Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on L abutment/bank.Flagged due to unknown pier scour--piers on banks w/ no instabilities U/S, D/S, or at bridge. Levee on LB, RR embankment on RB.Over slough--little to no velocities. Levees on both banks. Shallow, poorly defined channel. Flagged due to pile exposure at abutments--not confirmed, no problems noted.Well protected with riprap on both abutments & U/S & D/S embankment faces. Flagged due to unknown pier scour--mild local scour at setback piers, but piers designed to resist scour. Gravel mining on both U/S & D/S RFPs.Well protected with riprap on both abutments. Flagged due to pile exposure at piers--piers are pile bents; possible exposure, but nothing substantial. Shallow, poorly defined channel.D/S of A3709 (not flagged). Riprap on L bank/abutment due to channel bend. Levees on both banks. Piers designed to resist scour. Gully erosion on RB.Riprap on R abutment & U/S embankment face. Bluff on L side U/S & D/S. Well vegetated, stable banks U/S; cutbank on D/S LB. U/S of new east-bound bridge. Flagged due to unknown pier scour--possibly founded on bedrock; otherwise designed to resist scour.Very well protected with riprap on both abutments, banks, & U/S embankment faces. Riprap on levee on D/S LFP. Mild local scour at L bent. Over stagnant slough.U/S of A595. Very well protected with riprap on abutments & U/S & D/S embankment faces. Shallow, channelized channel.Moderate riprap protection on R abutment/bank. Cutbank on LB at bridge. Road on U/S LFP.NoneD/S of A4331. Minimal contraction due to U/S bridge. Concrete debris on L abutment face. Shallow, channelized channel.Overflow section on RFP. Very small creek. Scour hole on L abutment toe. Built w/o skew, channel approaches at 25 deg.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Mass wasting on banks under bridge.Mass wasting on U/S LB; slumping on both banks under bridge. RR bridge D/S approx 1 bridge length.Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Well protected with concreted riprap on both banks/abutmentsDredge/man-made levees on both U/S & D/S banks. RR bridge U/S w/o additional constriction. R abutment slightly undercut.Riprap on both abutments & U/S embankment faces; also on R setback & U/S RB. Short spans on L approach trap substantial debris. Contraction & local scour on L setback & D/S. Bridge built w/o skew, channel approaches at 30 deg due to meander.Inlaid cobbling on both abutments. Levee on U/S RFP. Small levee at road elevation on LB.Flagged due to unknown pier scour--piers on banks w/ no instabilities U/S, D/S, or at bridge. Levee on LB, RR embankment on RB.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on L abutment/bank.Riprap on L abutment & U/S embankment face; concrete debris on R abutment & U/S embankment face. Shallow channel w/ well vegetated banks U/S & D/S. Channel is shifted to L. Flagged due to pier scour, abut pile exposure, & riprap condition--confirmed, but not problems.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. U/S FPs thick timber & underbrush. Cutting of banks under bridge.Channel parallels road U/S RFP.Well protected banks & abutments. Levees on all U/S & D/S banks. Unable to see pier foundations.



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AT10


document.xls

District 10

Well protected w/ riprap on both abutments & both embankment faces. Wide shallow gravel channel. Flagged due to observed scour hole--confirmed, but not deemed to be a problem due to wide shallow channel configuration.Large riprap on both abutments & U/S embankment faces; piers designed to resist scour. Wide, shallow channel. Flagged due to an observed scour hole--not deemed to be a problem.Large riprap on both abutments & U/S embankment faces; piers designed to resist scour. Recent mining in channel. Flagged due to observed pier scour & 2 scour holes--not deemed to be problems.Over Castor River; overflow bridge on RFP A4576. Well protected w/ riprap on both abutments & both embankment faces. Wide relatively shallow gravel channel. Flagged due to footing exposure at bent 2--unable to confirm, but piers designed to resist scour.Footing exposure at both abutments. Large gravel in channel. Mild cutbank on U/S LB.Levee on RB/RFP. Riprap on R abutment face. Riprap on L abutment & U/S & D/S embankment faces. Overflow section on LFP. Mild contraction scour on L setback. Piers designed to resist scour.Abutment scour at both abutments; erosion at U/S L WW. Channel meanders substantially U/S. Bridge built w/o skew, channel approaches at 15 deg.Riprap on both banks/abutments; over stagnant pool approx 7' deep. Flagged due to unknown pier scour--not suspected to be a problem.Riprap on both banks/setbacks/abutments. Vertical abutments w/o wingwalls set back from channel (1.00 & .55 = .82). Minor local scour on R setback. Cutbank on U/S LB due to bend.Inlaid cobbling on LB/abutment. Contraction & local scour on RSB. Bridge built with 15 deg skew, channel approaches at 40 deg.Shallow channel with three (3) approach channels (small). Concreted riprap on L abutment toe, cobbles on R abutment. Flagged due to riprap condition & cutbank--confirmed, but shallow channel make neither a problem.Both abutment toes heavily protected with concreted riprap. Channel depth approx 3', with cobbles in channel. Flagged due to unknown pier scour--not suspected to be undermined. Mild concraction scour in channel.Overflow bridge on LFP. Conctraction/abutment & local scour on L setback filled with riprap. Minor blowhole at bridge. High, steep bank on LB.Minimal concreted riprap on both abutments. Concrete connecting caps exposed at R bent.Both abutments fully protected by riprap. Concrete connecting caps exposed on R bent.Well protected with riprap on both abutments & U/S & D/S embankment faces. Shallow gravel channel. Mild local scour at bents.In mild flood--unable to see pier foundations. Very well protected with riprap on both abutments/banks, piers designed to resist scour. Discontinuous levees on both U/S & D/S banks--only minor contraction at bridge. On bend in channel--cutbanks U/S & D/SChannelized, shallow channel with stable banks. Appears to have had some downcutting. Flagged due to pile exposure at abutments--not confirmed, no exposure evident at stable banks.Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge. Channel deeply dredged!Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on R abutment/bank. Cutbank on LB at bridge. Road on U/S LFP.Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on L abutment/bank.Flagged due to unknown pier scour--piers on banks w/ no instabilities U/S, D/S, or at bridge. Levee on LB, RR embankment on RB.Over slough--little to no velocities. Levees on both banks. Shallow, poorly defined channel. Flagged due to pile exposure at abutments--not confirmed, no problems noted.Well protected with riprap on both abutments & U/S & D/S embankment faces. Flagged due to unknown pier scour--mild local scour at setback piers, but piers designed to resist scour. Gravel mining on both U/S & D/S RFPs.Well protected with riprap on both abutments. Flagged due to pile exposure at piers--piers are pile bents; possible exposure, but nothing substantial. Shallow, poorly defined channel.D/S of A3709 (not flagged). Riprap on L bank/abutment due to channel bend. Levees on both banks. Piers designed to resist scour. Gully erosion on RB.Riprap on R abutment & U/S embankment face. Bluff on L side U/S & D/S. Well vegetated, stable banks U/S; cutbank on D/S LB. U/S of new east-bound bridge. Flagged due to unknown pier scour--possibly founded on bedrock; otherwise designed to resist scour.Very well protected with riprap on both abutments, banks, & U/S embankment faces. Riprap on levee on D/S LFP. Mild local scour at L bent. Over stagnant slough.U/S of A595. Very well protected with riprap on abutments & U/S & D/S embankment faces. Shallow, channelized channel.Moderate riprap protection on R abutment/bank. Cutbank on LB at bridge. Road on U/S LFP.NoneD/S of A4331. Minimal contraction due to U/S bridge. Concrete debris on L abutment face. Shallow, channelized channel.Overflow section on RFP. Very small creek. Scour hole on L abutment toe. Built w/o skew, channel approaches at 25 deg.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Mass wasting on banks under bridge.Mass wasting on U/S LB; slumping on both banks under bridge. RR bridge D/S approx 1 bridge length.Dredge levee on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. Well protected with concreted riprap on both banks/abutmentsDredge/man-made levees on both U/S & D/S banks. RR bridge U/S w/o additional constriction. R abutment slightly undercut.Riprap on both abutments & U/S embankment faces; also on R setback & U/S RB. Short spans on L approach trap substantial debris. Contraction & local scour on L setback & D/S. Bridge built w/o skew, channel approaches at 30 deg due to meander.Inlaid cobbling on both abutments. Levee on U/S RFP. Small levee at road elevation on LB.Flagged due to unknown pier scour--piers on banks w/ no instabilities U/S, D/S, or at bridge. Levee on LB, RR embankment on RB.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on L abutment/bank.Riprap on L abutment & U/S embankment face; concrete debris on R abutment & U/S embankment face. Shallow channel w/ well vegetated banks U/S & D/S. Channel is shifted to L. Flagged due to pier scour, abut pile exposure, & riprap condition--confirmed, but not problems.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. U/S FPs thick timber & underbrush. Cutting of banks under bridge.Channel parallels road U/S RFP.Well protected banks & abutments. Levees on all U/S & D/S banks. Unable to see pier foundations.

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document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]S525 MAIN DD MO142 BUTLER 3 84 -- Qimp 2360 2360 BC 8.1 1.4 L -- -- 4.7 -- --S526 LONG DD MO142 BUTLER 3 68 -- Qimp 977 977 BC 5.5 7.9 L 9.1 8.7 6.0 -- 19.1S565 BIG HUNTING DD MO142 BUTLER 3 102 -- Qimp 2290 2290 BC 7.7 7.8 L -- -- 3.9 -- 20.3T170 CRAVEN DD MO158 BUTLER 3 72 -- Qimp 3100 3100 BC 11.1 1.4 L -- -- 5.5 -- --A1225A&B HUGHES CR IS055 CAPE GIRARDEAU 2 172 7.95 Q100 4160 4160 REG 7.1 -- -- -- -- -- -- --A1226A&B APPLE CR IS055 CAPE GIRARDEAU 2 238 57.1 Q100 14500 14500 REG 12.4 -- -- -- -- -- -- --A4692 CROOKED CR RT00U CAPE GIRARDEAU 2 420 175 Q100 30400 30400 REG 13.8 -- -- -- -- -- -- --A476A&B RAMSEY CR IS055 CAPE GIRARDEAU 2 151 10.2 Q100 4460 4460 REG 12.9 0.4 L -- -- 7.7 -- 10.4A4817 HEADWATER DIVERSION CHAN MO 25 CAPE GIRARDEAU 3 1472 -- Qimp 131000 131000 BC 16.2 0.0 L 30.6 26.8 8.6 8.6 19.7A708 RAMSEY CR RP074 CAPE GIRARDEAU 2 171 10.4 Q100 4550 4550 REG 13.2 3.3 L -- -- 7.7 -- 10.6A764 INDIAN CR MO177 CAPE GIRARDEAU 2 233 34.2 Q100 10600 10600 REG 10.4 -- -- -- -- -- -- --G467 WHITE WATER CR MO072 CAPE GIRARDEAU 2 245 135 Q100 26600 21350 BC 15.8 7.3 L 16.6 17.7 18.1 -- 21.8G734 DRAINAGE DITCH OR055 CAPE GIRARDEAU 3 108 -- Qimp 5050 5050 BC 11.0 6.5 L -- -- 3.2 -- 30.8H431 DD NO 25 RT025 CAPE GIRARDEAU 3 71 -- Qimp -- -- -- -- -- -- -- -- -- -- --H573 L RAMSEY CR OR055 CAPE GIRARDEAU 2 177 10.4 Q100 4550 4550 REG 9.5 7.4 L 5.1 -- 16.1 -- 13.6J151 JOBS CR MO074 CAPE GIRARDEAU 2 98 3.39 Q100 2130 2130 REG 9.1 0.0 L 3.1 -- 9.2 -- 12.2J225 L RAMSEY CR MO074 CAPE GIRARDEAU 2 148 10.4 Q100 4550 4550 REG 12.0 6.6 L -- -- 16.9 -- 16.3J3281 HUBBLE CR MO034 CAPE GIRARDEAU 2 110 0.66 Q100 2930 2930 REG 9.8 0.0 L 0.3 -- 7.7 -- 8.2J883 DILLARD CR MO034 CAPE GIRARDEAU 2 98 3.07 Q100 3080 3080 REG 8.4 -- -- -- -- -- -- --J884 WHITE WATER RI MO034 CAPE GIRARDEAU 2 255 240 Q100 38200 14210 EST 12.4 0.0 L -- -- 7.7 -- 18.3J885 WHITE WATER RI MO034 CAPE GIRARDEAU 2 355 240 Q100 38200 23990 EST 14.6 0.0 L 10.2 19.9 10.6 7.8 11.2J886 BYRD CR MO034 CAPE GIRARDEAU 2 170 38.4 Q100 10400 10400 REG 12.9 13.2 L 9.5 6.7 7.7 -- 19.4K768 CASTOR RI CR RT00N CAPE GIRARDEAU 3 261 -- Qimp 12200 12200 BC 12.0 0.0 L -- -- 8.6 -- --L259 CAPE LA CROIX CR MO074 CAPE GIRARDEAU 2 152 21.6 Q100 7270 7270 REG 13.7 6.9 L 6.4 6.6 7.7 -- 17.5L277 RAMSEY CR MO074 CAPE GIRARDEAU 2 165 10.4 Q100 4550 4550 REG 13.5 1.0 L 2.3 -- 7.7 -- 10.8L567 WHITE WATER RI RT00A CAPE GIRARDEAU 2 221 344 Q100 42200 42200 REG 24.7 -- -- -- -- -- -- --N06901 WHITE WATER RI RT0OO CAPE GIRARDEAU 2 334 325 Q100 44400 44400 REG 20.1 9.7 L 25.7 29.4 15.4 -- 23.7N198 L INDIAN CR RT00Y CAPE GIRARDEAU 2 105 4.24 Q100 3830 3830 REG 9.1 -- -- -- -- -- -- --N781 L INDIAN CR RT00V CAPE GIRARDEAU 2 167 12.8 Q100 6960 6960 REG 10.6 2.3 C 4.7 -- 5.2 -- 14.6P231 INDIAN CR RT00V CAPE GIRARDEAU 2 131 8.15 Q100 4870 4870 REG 9.2 -- -- -- -- -- -- --P786 LITTLE RI DD NO 1 RT0EE CAPE GIRARDEAU 3 53 -- Qimp 1620 1620 BC 8.5 6.2 L -- -- 4.7 -- 18.3S09431 BIG INDIAN CR RT00V CAPE GIRARDEAU 2 139 17.1 Q100 6320 6320 REG 10.9 12.1 L 2.6 1.5 5.2 -- 18.6T842 HUBBLE CR OF RT00Z CAPE GIRARDEAU 2 102 29.3 Q100 9040 5945 BC 12.1 7.8 L -- -- 3.9 -- 21.3A1206 POLE CAT SL US412 DUNKLIN 3 83 -- Qimp 1750 1750 BC 7.2 12.3 L -- -- 5.1 -- 22.3A1207 POLE CAT SL US412 DUNKLIN 3 90 -- Qimp 3870 3870 BC 11.4 8.2 L 16.8 16.8 5.1 -- 20.1A1399 HONEY CYPRESS DD US412 DUNKLIN 3 83 -- Qimp 3760 3760 BC 10.8 1.5 L -- 10.1 5.1 -- --A1400 KINNEMORE DD US412 DUNKLIN 3 83 -- Qimp 2310 2310 BC 8.2 2.8 L 8.7 -- 5.1 -- 14.0A1429 DD NO 81 US412 DUNKLIN 3 175 -- Qimp 10300 10300 BC 13.1 0.7 L -- 16.6 7.7 -- --A1430 DD NO 1 US412 DUNKLIN 3 328 -- Qimp 38700 38700 BC 20.0 1.1 L 8.3 15.6 7.7 -- --A1431 DD NO 66 US412 DUNKLIN 3 266 -- Qimp 31700 31700 BC 20.1 5.6 L -- 26.5 7.7 -- --A1432 DD NO 251 US412 DUNKLIN 3 266 -- Qimp 27400 27400 BC 18.4 3.5 L -- 25.0 7.7 -- --A1433 DD NO 259 US412 DUNKLIN 3 238 -- Qimp 16500 16500 BC 14.5 0.0 L -- -- 7.7 -- --A2332 DD NO 81 MO164 DUNKLIN 3 287 -- Qimp -- -- -- -- -- -- -- -- -- -- --A2333 DD NO 1 MO164 DUNKLIN 3 328 -- Qimp -- -- -- -- -- -- -- -- -- -- --A2334 DD NO 66 & DD NO 251 MO164 DUNKLIN 3 641 -- Qimp -- -- -- -- -- -- -- -- -- -- --


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document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- P Y N N N N -- -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on R abutment/bank.

18.6 Y Y N N N N -- -- Concrete connecting caps exposed. Small shallow channel.20.5 Y P N N N N -- -- Appears to be in backwater or stagnant. Road at approx same elevation as FP. Poorly defined channel.

-- P Y N N N Y ? -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on both abutment/banks.-- Q500 5640 5640 REG 8.6 -- -- -- -- -- -- -- -- N N Y N N Y Y -- Concreted riprap on both banks/abutments U/S & D/S of bridge. Bedrock channel; outcrop on L side. Flagged due to exposed footing at R main channel bent (both bridges)--confirmed, but founded on bedrock channel.-- Q500 19600 19600 REG 14.9 -- -- -- -- -- -- -- -- N P Y P Y Y Y -- Rock outcrop on R side; Riprap on LB/abutment. Piers designed to resist scour. Narrow FP U/S. Flagged due to footing exposure at L bent--confirmed, but footing size indicative of footing founded on bedrock. Minor bank instability on LB at D/S bridge.-- Q500 41200 41200 REG 16.6 -- -- -- -- -- -- -- -- N N N N Y Y Y -- Riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Minor local/contraction scour on L setback. Flagged due to mass wasting--confirmed; high, relatively steep banks vegetated U/S & D/S, minor slumping at bridge.

10.4 Q500 6010 6010 REG 14.8 0.0 L -- -- 7.8 -- 14.4 14.4 N N N P Y N -- -- Riprap on U/S banks to stop localized sloughing. Deep, narrow channel. Calculated Q's do not overtop banks. Cutbank on RB between bridges.-- N N N N N Y Y -- Qimp is impendent levee overtopping Q; riprap on both abutment faces & LB & RB at bridge; Levees on U/S LFP & RFP

12.6 Q500 6120 6120 REG 14.7 4.8 L -- 4.7 7.8 -- 13.6 15.4 N N N N Y N -- -- Deep, narrow channel--calculated Q's barely overtop banks. Minimal riprap on banks to stop localized sloughing. U/S of L277. Levee on LB.-- Q500 14400 14400 REG 12.6 -- -- -- -- -- -- -- -- N P P Y Y Y Y -- Riprap on both abutments & U/S embankment faces. Tributary on U/S R contributing large amount of gravel at bridge. Flagged due to mass wasting on R side & cutbank--confirmed, but not a problem to abutment or piers; wide, shallow channel.

20.3 Qimp 16100 16100 BC 13.3 8.9 L 12.9 14.6 18.0 -- 19.6 16.8 Y N N Y Y Y N -- Concreted riprap on R abutment. Large cobbles on LB. L abutment cap undermined. R setback formed by sand island in channel; scoured locally. Channel shifted to R U/S.-- Y Y N N N N -- -- Currently backflowing due to MI River. Levee on RB will be overtopped, but will direct flow through bridge. Channel parallels headwater diversion ditch.-- Y Y N P N N -- -- Small, highly skewed bridge over very small creek. Levees higher than road on both U/S banks--no contraction. Gully washing on abutments. Stable trapezoidal shaped channel.

14.6 Q500 6130 6130 REG 10.8 9.2 L 8.2 -- 16.1 -- 15.9 17.0 N N N Y Y M N -- Marginal concrete on both abutment faces. Cobbling on RB to limit impinging flow erosion. Channel bends from L U/S. Deep channel--calculated Q's barely overtop banks.7.7 Q500 2860 2860 REG 10.3 0.0 L 6.0 -- 9.3 -- 14.5 11.9 N N N Y Y Y N -- On FP of headwater diversion ditch; levees on U/S & D/S RB, D/S LB; raised FP on U/S LB. Riprap on R abutment. Channel approaches unskewed bridge at 10 deg, impinging on RB.

16.3 Q500 6130 6130 REG 13.8 9.2 L -- 5.1 16.9 -- 19.5 19.5 N N N Y Y N -- -- Deep, moderately wide channel. Slumped bank on U/S LB. Cutbank on RB U/S through D/S. Road embankment on LFP, RR embankment on RFP.8.2 Q500 3910 3910 REG 10.9 1.9 L 2.1 -- 7.7 -- 11.9 11.9 N N N N Y M N -- Levee on RB U/S & D/S at level of road. LFP U/S & D/S is residential. Blowhole under bridge. Inlaid cobbling on L abutment, marginal riprap on R abutment to prevent gully washing.

-- Q500 4260 4260 REG 10.2 -- -- -- -- -- -- -- -- N P Y N Y Y ? -- Riprap & concreted riprap on both abutments. Bedrock outcrop under bridge. Flagged due to footing exposure at bent--confirmed at R bent, but founded on bedrock.10.1 Q500 51800 19270 EST 14.7 0.0 L -- -- 7.8 -- 20.9 14.9 N N N N Y Y N -- Riprap on L abutment; Rock outcrop/bluff on R side. Contraction scour under bridge. Overflow bridge for J885.17.8 Q500 51800 32530 EST 17.1 0.0 L 15.8 24.7 10.7 7.8 15.9 20.8 N N N Y Y Y N -- Inlaid cobbling at both abutments, additional riprap on R abutment. Contraction scour hole on R setback. Cutbank on D/S LB. Overflow bridge (J884) on RFP.17.1 Q500 14000 14000 REG 15.5 16.5 L 13.9 10.8 7.8 -- 21.7 20.5 N P N Y Y Y N -- Riprap on L abutment; inlaid cobbling on R abutment face. Blowhole at bridge. Contraction scour on both setbacks.

-- Y N N N Y Y N -- Riprap on L setback & LB to stop slumping. Riprap on R abutment face. Low point in road approx same elev as FP--banks will be minorly overtopped, but will direct flow through bridge.17.7 Q500 9780 9780 REG 15.6 9.7 L 10.8 11.0 7.8 -- 20.1 20.2 N N N P Y Y N -- Inlaid cobbling on both abutment faces. Riprap dikes on U/S LB & various locations to stop localized sloughing. Contraction scour on both setbacks. Steep banks on both sides.10.9 Q500 6120 6120 REG 15.5 1.4 L 5.5 5.5 7.8 -- 14.9 14.9 N N N P Y N -- -- Deep, narrow channel--calculated Q's barely overtop banks. Minimal riprap on banks to stop localized sloughing. D/S of A708. Widths adjusted for effective flow area.

-- Q500 56700 56700 REG 29.5 -- -- -- -- -- -- -- -- N P N N N Y ? -- Concreted riprap on both abutments/banks & U/S embankment faces. Channelized with levee on D/S LB. Flagged due to mass wasting on both banks--confirmed, but banks appear stable with old vegetation.26.6 Q500 60100 60100 REG 24.1 13.2 L 32.5 37.1 15.5 -- 27.3 30.2 P Y N Y Y Y ? -- Riprap & concreted riprap on both abutments & U/S embankment faces. Channel bends from R U/S--large cutbank on U/S LB. Contraction scour on both setbacks.

-- Q500 5300 5300 REG 11.1 -- -- -- -- -- -- -- -- N P Y Y Y Y ? -- Migration principal concern. Level 1+ will not indicate problems. FPs at same elevation as road--minimal contraction before overtopping. Riprap on U/S & D/S RB; concreted riprap on both abutment faces--R abutment being undercut by lateral migration.8.8 Q500 9570 9570 REG 12.3 3.6 C 7.4 0.0 5.2 -- 17.9 13.3 N N P Y Y Y N -- Riprap on R abutment. Falling trees on U/S RB. Cutbank on D/S RB.

-- Q500 6660 6660 REG 11.2 -- -- -- -- -- -- -- -- P P Y P Y Y ? -- Shallow, wide channel. Minor cutbank on U/S RB. Tributary on U/S RB parallels road, cutbank along road embankment (Level 1+ will not evaluate). Riprap & concreted riprap on both banks and abutments.19.1 Y Y N N N N -- -- Small dredge levees on banks. Slight blowhole on both banks under bridge.15.2 Q500 8510 8510 REG 12.5 14.5 L 5.0 3.5 5.2 -- 20.4 18.2 N N P P Y Y ? -- Riprap on both abutment & U/S embankment faces. Cutbanks on both banks U/S & at bridge. Riprap on D/S LB. Mild contraction scour on both setbacks.21.3 Qimp 2850 2850 BC 7.8 9.0 L -- -- 3.9 -- 15.4 15.4 Y P N N Y M N -- Very small channel in opening--disregarded. Riprap on both abutment faces.22.3 P Y N N ? N -- -- In flood--unable to see pier foundations. Small natural levees on U/S banks.22.2 N P N N N N -- -- In flood--unable to see pier foundations. U/S RFP residential. Substantial lateral drainage U/S.

-- P Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Old abutment evident U/S.-- P Y N N ? N -- -- In flood--unable to see pier foundations. Large levee on U/S RB--will not be overtopped. Moderate debris in channel.-- P P N N N M N -- Riprap on upper face of abutments. Qimp taken from levee on RB/RFP.-- N P N N N M N -- Riprap on upper face of abutments. Qimp taken from levee on RB/RFP. Wide channel. Levees on both banks--no contraction.-- N P N N N M N -- Riprap on upper face of abutments. Qimp taken from levee on RB. No levee on L side; a FP shared w/ A1432.-- N N N N N M N -- Riprap on upper face of abutments. Qimp taken from levee on LB. No levee on R side; a FP shared w/ A1431. Low-flow channel meanders in bank-full channel.-- Y N N N N N -- -- Road at same elevation as FPs--no contraction before overtopping. Low-flow channel meanders in bank-full channel.-- P P N N Y M N -- Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing.-- N P N N N N -- -- Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing.-- N P N N Y M N -- Bridge over two ditches. Levees on both outer banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing. FP between ditches has mild local/contraction scour.


105657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100

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Z6


AC10


document.xls

District 10

Comment codes:

Notes


Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on R abutment/bank.Concrete connecting caps exposed. Small shallow channel.Appears to be in backwater or stagnant. Road at approx same elevation as FP. Poorly defined channel.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on both abutment/banks.Concreted riprap on both banks/abutments U/S & D/S of bridge. Bedrock channel; outcrop on L side. Flagged due to exposed footing at R main channel bent (both bridges)--confirmed, but founded on bedrock channel.Rock outcrop on R side; Riprap on LB/abutment. Piers designed to resist scour. Narrow FP U/S. Flagged due to footing exposure at L bent--confirmed, but footing size indicative of footing founded on bedrock. Minor bank instability on LB at D/S bridge.Riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Minor local/contraction scour on L setback. Flagged due to mass wasting--confirmed; high, relatively steep banks vegetated U/S & D/S, minor slumping at bridge.Riprap on U/S banks to stop localized sloughing. Deep, narrow channel. Calculated Q's do not overtop banks. Cutbank on RB between bridges.Qimp is impendent levee overtopping Q; riprap on both abutment faces & LB & RB at bridge; Levees on U/S LFP & RFPDeep, narrow channel--calculated Q's barely overtop banks. Minimal riprap on banks to stop localized sloughing. U/S of L277. Levee on LB.Riprap on both abutments & U/S embankment faces. Tributary on U/S R contributing large amount of gravel at bridge. Flagged due to mass wasting on R side & cutbank--confirmed, but not a problem to abutment or piers; wide, shallow channel.Concreted riprap on R abutment. Large cobbles on LB. L abutment cap undermined. R setback formed by sand island in channel; scoured locally. Channel shifted to R U/S.Currently backflowing due to MI River. Levee on RB will be overtopped, but will direct flow through bridge. Channel parallels headwater diversion ditch.Small, highly skewed bridge over very small creek. Levees higher than road on both U/S banks--no contraction. Gully washing on abutments. Stable trapezoidal shaped channel.Marginal concrete on both abutment faces. Cobbling on RB to limit impinging flow erosion. Channel bends from L U/S. Deep channel--calculated Q's barely overtop banks.On FP of headwater diversion ditch; levees on U/S & D/S RB, D/S LB; raised FP on U/S LB. Riprap on R abutment. Channel approaches unskewed bridge at 10 deg, impinging on RB.Deep, moderately wide channel. Slumped bank on U/S LB. Cutbank on RB U/S through D/S. Road embankment on LFP, RR embankment on RFP.Levee on RB U/S & D/S at level of road. LFP U/S & D/S is residential. Blowhole under bridge. Inlaid cobbling on L abutment, marginal riprap on R abutment to prevent gully washing.Riprap & concreted riprap on both abutments. Bedrock outcrop under bridge. Flagged due to footing exposure at bent--confirmed at R bent, but founded on bedrock.Riprap on L abutment; Rock outcrop/bluff on R side. Contraction scour under bridge. Overflow bridge for J885.Inlaid cobbling at both abutments, additional riprap on R abutment. Contraction scour hole on R setback. Cutbank on D/S LB. Overflow bridge (J884) on RFP.Riprap on L abutment; inlaid cobbling on R abutment face. Blowhole at bridge. Contraction scour on both setbacks.Riprap on L setback & LB to stop slumping. Riprap on R abutment face. Low point in road approx same elev as FP--banks will be minorly overtopped, but will direct flow through bridge.Inlaid cobbling on both abutment faces. Riprap dikes on U/S LB & various locations to stop localized sloughing. Contraction scour on both setbacks. Steep banks on both sides.Deep, narrow channel--calculated Q's barely overtop banks. Minimal riprap on banks to stop localized sloughing. D/S of A708. Widths adjusted for effective flow area.Concreted riprap on both abutments/banks & U/S embankment faces. Channelized with levee on D/S LB. Flagged due to mass wasting on both banks--confirmed, but banks appear stable with old vegetation.Riprap & concreted riprap on both abutments & U/S embankment faces. Channel bends from R U/S--large cutbank on U/S LB. Contraction scour on both setbacks.Migration principal concern. Level 1+ will not indicate problems. FPs at same elevation as road--minimal contraction before overtopping. Riprap on U/S & D/S RB; concreted riprap on both abutment faces--R abutment being undercut by lateral migration.Riprap on R abutment. Falling trees on U/S RB. Cutbank on D/S RB.Shallow, wide channel. Minor cutbank on U/S RB. Tributary on U/S RB parallels road, cutbank along road embankment (Level 1+ will not evaluate). Riprap & concreted riprap on both banks and abutments.Small dredge levees on banks. Slight blowhole on both banks under bridge.Riprap on both abutment & U/S embankment faces. Cutbanks on both banks U/S & at bridge. Riprap on D/S LB. Mild contraction scour on both setbacks.Very small channel in opening--disregarded. Riprap on both abutment faces.In flood--unable to see pier foundations. Small natural levees on U/S banks.In flood--unable to see pier foundations. U/S RFP residential. Substantial lateral drainage U/S.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Old abutment evident U/S.In flood--unable to see pier foundations. Large levee on U/S RB--will not be overtopped. Moderate debris in channel.Riprap on upper face of abutments. Qimp taken from levee on RB/RFP.Riprap on upper face of abutments. Qimp taken from levee on RB/RFP. Wide channel. Levees on both banks--no contraction.Riprap on upper face of abutments. Qimp taken from levee on RB. No levee on L side; a FP shared w/ A1432.Riprap on upper face of abutments. Qimp taken from levee on LB. No levee on R side; a FP shared w/ A1431. Low-flow channel meanders in bank-full channel.Road at same elevation as FPs--no contraction before overtopping. Low-flow channel meanders in bank-full channel.Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing.Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing.Bridge over two ditches. Levees on both outer banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing. FP between ditches has mild local/contraction scour.


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District 10

Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on R abutment/bank.Concrete connecting caps exposed. Small shallow channel.Appears to be in backwater or stagnant. Road at approx same elevation as FP. Poorly defined channel.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap protection on both abutment/banks.Concreted riprap on both banks/abutments U/S & D/S of bridge. Bedrock channel; outcrop on L side. Flagged due to exposed footing at R main channel bent (both bridges)--confirmed, but founded on bedrock channel.Rock outcrop on R side; Riprap on LB/abutment. Piers designed to resist scour. Narrow FP U/S. Flagged due to footing exposure at L bent--confirmed, but footing size indicative of footing founded on bedrock. Minor bank instability on LB at D/S bridge.Riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Minor local/contraction scour on L setback. Flagged due to mass wasting--confirmed; high, relatively steep banks vegetated U/S & D/S, minor slumping at bridge.Riprap on U/S banks to stop localized sloughing. Deep, narrow channel. Calculated Q's do not overtop banks. Cutbank on RB between bridges.Qimp is impendent levee overtopping Q; riprap on both abutment faces & LB & RB at bridge; Levees on U/S LFP & RFPDeep, narrow channel--calculated Q's barely overtop banks. Minimal riprap on banks to stop localized sloughing. U/S of L277. Levee on LB.Riprap on both abutments & U/S embankment faces. Tributary on U/S R contributing large amount of gravel at bridge. Flagged due to mass wasting on R side & cutbank--confirmed, but not a problem to abutment or piers; wide, shallow channel.Concreted riprap on R abutment. Large cobbles on LB. L abutment cap undermined. R setback formed by sand island in channel; scoured locally. Channel shifted to R U/S.Currently backflowing due to MI River. Levee on RB will be overtopped, but will direct flow through bridge. Channel parallels headwater diversion ditch.Small, highly skewed bridge over very small creek. Levees higher than road on both U/S banks--no contraction. Gully washing on abutments. Stable trapezoidal shaped channel.Marginal concrete on both abutment faces. Cobbling on RB to limit impinging flow erosion. Channel bends from L U/S. Deep channel--calculated Q's barely overtop banks.On FP of headwater diversion ditch; levees on U/S & D/S RB, D/S LB; raised FP on U/S LB. Riprap on R abutment. Channel approaches unskewed bridge at 10 deg, impinging on RB.Deep, moderately wide channel. Slumped bank on U/S LB. Cutbank on RB U/S through D/S. Road embankment on LFP, RR embankment on RFP.Levee on RB U/S & D/S at level of road. LFP U/S & D/S is residential. Blowhole under bridge. Inlaid cobbling on L abutment, marginal riprap on R abutment to prevent gully washing.Riprap & concreted riprap on both abutments. Bedrock outcrop under bridge. Flagged due to footing exposure at bent--confirmed at R bent, but founded on bedrock.Riprap on L abutment; Rock outcrop/bluff on R side. Contraction scour under bridge. Overflow bridge for J885.Inlaid cobbling at both abutments, additional riprap on R abutment. Contraction scour hole on R setback. Cutbank on D/S LB. Overflow bridge (J884) on RFP.Riprap on L abutment; inlaid cobbling on R abutment face. Blowhole at bridge. Contraction scour on both setbacks.Riprap on L setback & LB to stop slumping. Riprap on R abutment face. Low point in road approx same elev as FP--banks will be minorly overtopped, but will direct flow through bridge.Inlaid cobbling on both abutment faces. Riprap dikes on U/S LB & various locations to stop localized sloughing. Contraction scour on both setbacks. Steep banks on both sides.Deep, narrow channel--calculated Q's barely overtop banks. Minimal riprap on banks to stop localized sloughing. D/S of A708. Widths adjusted for effective flow area.Concreted riprap on both abutments/banks & U/S embankment faces. Channelized with levee on D/S LB. Flagged due to mass wasting on both banks--confirmed, but banks appear stable with old vegetation.Riprap & concreted riprap on both abutments & U/S embankment faces. Channel bends from R U/S--large cutbank on U/S LB. Contraction scour on both setbacks.Migration principal concern. Level 1+ will not indicate problems. FPs at same elevation as road--minimal contraction before overtopping. Riprap on U/S & D/S RB; concreted riprap on both abutment faces--R abutment being undercut by lateral migration.Riprap on R abutment. Falling trees on U/S RB. Cutbank on D/S RB.Shallow, wide channel. Minor cutbank on U/S RB. Tributary on U/S RB parallels road, cutbank along road embankment (Level 1+ will not evaluate). Riprap & concreted riprap on both banks and abutments.Small dredge levees on banks. Slight blowhole on both banks under bridge.Riprap on both abutment & U/S embankment faces. Cutbanks on both banks U/S & at bridge. Riprap on D/S LB. Mild contraction scour on both setbacks.Very small channel in opening--disregarded. Riprap on both abutment faces.In flood--unable to see pier foundations. Small natural levees on U/S banks.In flood--unable to see pier foundations. U/S RFP residential. Substantial lateral drainage U/S.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Old abutment evident U/S.In flood--unable to see pier foundations. Large levee on U/S RB--will not be overtopped. Moderate debris in channel.Riprap on upper face of abutments. Qimp taken from levee on RB/RFP.Riprap on upper face of abutments. Qimp taken from levee on RB/RFP. Wide channel. Levees on both banks--no contraction.Riprap on upper face of abutments. Qimp taken from levee on RB. No levee on L side; a FP shared w/ A1432.Riprap on upper face of abutments. Qimp taken from levee on LB. No levee on R side; a FP shared w/ A1431. Low-flow channel meanders in bank-full channel.Road at same elevation as FPs--no contraction before overtopping. Low-flow channel meanders in bank-full channel.Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing.Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing.Bridge over two ditches. Levees on both outer banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Marginal cobbling & riprap on banks/abutments to stop gully washing. FP between ditches has mild local/contraction scour.

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document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A2336 DD NO 259 MO164 DUNKLIN 3 299 -- Qimp -- -- -- -- -- -- -- -- -- -- --A2382 ST FRANCIS RI RT0DD DUNKLIN 3 328 -- Qimp 31200 31200 BC 16.9 1.0 L -- -- 11.7 -- --A3960 DD NO 19 MO153 DUNKLIN 3 190 -- Qimp -- -- -- -- -- -- -- -- -- -- --A4622 UPPER BUFFALO CR MO164 DUNKLIN 3 154 -- Qimp -- -- -- -- -- -- -- -- -- -- --A4711 BELLE FOUNTAIN DD RT0NN DUNKLIN 3 254 -- Qimp -- -- -- -- -- -- -- -- -- -- --F11233 DD NO 36 US412 DUNKLIN 3 182 -- Qimp 1440 1440 BC 4.1 0.4 L 0.0 0.3 8.8 8.8 --F6311 SNIPE SL RT00O DUNKLIN 3 75 -- Qimp 1530 1530 BC 6.8 4.2 L -- -- -- -- 17.0F6331 BUFFALO DD RT00Y DUNKLIN 3 66 -- Qimp 1560 1560 BC 8.2 5.3 L -- -- -- -- --F9041 KINNEMORE DD MO164 DUNKLIN 3 84 -- Qimp 2580 2580 BC 9.3 3.3 L -- -- -- -- 19.0F9562 RED DEVIL DD US412 DUNKLIN 3 85 -- Qimp 2400 2400 BC 8.1 8.4 L -- -- 5.1 -- 13.3F9592 DD NO 18 US412 DUNKLIN 3 198 -- Qimp -- -- -- -- -- -- -- -- -- -- --F9641 POLE CAT SL MO025 DUNKLIN 3 77 -- Qimp -- -- -- -- -- -- -- -- -- -- --F9651 BUFFALO DD RT00P DUNKLIN 3 66 -- Qimp 1630 1630 BC 8.8 4.6 L -- -- -- -- --G422 DD NO 12 MO053 DUNKLIN 3 211 -- Qimp 8950 8950 BC 11.7 1.4 L 13.7 11.9 5.1 5.1 14.5G423 DD NO 2 MO053 DUNKLIN 3 98 -- Qimp 3100 3100 BC 9.8 5.4 L -- 2.5 3.9 -- --G433 ST FRANCIS RI MO053 DUNKLIN 3 655 -- Qimp -- -- -- -- -- -- -- -- -- -- --G5841 DD LAT NO 1 MO053 DUNKLIN 3 103 -- Qimp 5870 5870 BC 12.4 5.4 L -- -- 5.2 -- 17.3H207 DRAINAGE DITCH RT00A DUNKLIN 3 72 -- Qimp 2790 2790 BC 10.7 5.9 L -- -- 6.4 -- 16.5H208 VARNEY DD RT00A DUNKLIN 3 58 -- Qimp 2530 2530 BC 11.5 1.9 L -- -- 6.4 -- --H209 RADGONS SL RT00A DUNKLIN 3 52 -- Qimp 831 831 BC 6.1 7.9 L -- -- 6.3 -- 14.5H256 ST FRANCIS RI RT0BB DUNKLIN 3 241 -- Qimp 50200 50200 BC 20.3 0.0 L 36.1 38.9 11.7 5.2 18.6H521 ST FRANCIS RI US412 DUNKLIN 3 1941 -- Qimp -- -- -- -- -- -- -- -- -- -- --H927R ST FRANCIS RI RT 62 DUNKLIN 3 665 -- Q100 29300 29300 GAGE 12.1 0.0 L 12.3 12.3 8.6 3.9 20.0J234 CYPRESS DD MO164 DUNKLIN 3 98 -- Qimp 3240 3240 BC 9.1 1.3 L -- -- 9.8 -- --J842 TAYLOR SL MO 153 DUNKLIN 3 33 -- Qimp 1310 1310 BC 10.0 19.4 L -- -- -- -- 37.0J854 SLOUGH MO153 DUNKLIN 3 33 -- Qimp 770 770 BC 7.5 10.4 L -- -- -- -- 19.4K682 LOST CR MO053 DUNKLIN 3 68 -- Qimp 4180 4180 BC 13.1 0.0 L 16.6 -- 5.5 -- 16.7L301 LITTLE RI DD NO 79 MO164 DUNKLIN 3 95 -- Qimp 4620 4620 BC 11.5 6.9 L -- -- 3.9 -- 15.4L302 ELK CHUTE DD MO164 DUNKLIN 3 259 -- Qimp 22300 22300 BC 16.9 5.1 L -- 19.0 3.9 -- 20.5L303 LAT DD NO 1 MO164 DUNKLIN 3 77 -- Qimp 2080 2080 BC 7.9 4.2 L -- -- 3.9 -- 15.4L304 DEERING DD MO164 DUNKLIN 3 91 -- Qimp 2120 2120 BC 8.9 11.2 L -- -- 3.9 -- --L305 LAT DD NO 4 MO164 DUNKLIN 3 95 -- Qimp 3730 3730 BC 9.9 0.1 L -- -- 3.9 -- 11.3L306 MAIN ELK CH MO164 DUNKLIN 3 107 -- Qimp 4630 4630 BC 10.5 2.2 L 16.8 -- 3.9 -- --N567 DD NO 2 RT0ZZ DUNKLIN 3 65 -- Qimp 2180 2180 BC 9.0 0.0 L -- -- 5.1 -- --N568 N DEERING DD RT0ZZ DUNKLIN 3 65 -- Qimp 691 691 BC 4.9 0.0 L -- -- 10.0 -- --N604 DD NO 8 RT0TT DUNKLIN 3 121 -- Qimp 14600 14600 BC 19.5 4.7 L -- -- 3.9 -- --P664 LAT DD NO 79 RT0UU DUNKLIN 3 52 -- Qimp 1740 1740 BC 9.0 0.0 L -- -- 3.9 -- --P702 MAIN DD RT0HH DUNKLIN 3 64 -- Qimp 1950 1950 BC 8.5 0.0 L -- -- -- -- --P876 DRAINAGE DITCH RT00N DUNKLIN 3 47 -- Qimp 500 500 BC 4.5 1.2 L -- -- 3.8 -- --S233 DD NO 25 RT00F DUNKLIN 3 54 -- Qimp 1520 1520 BC 8.1 4.3 L -- -- 3.9 -- 13.4S378 DD NO 4 RT00V DUNKLIN 3 66 -- Qimp 1980 1980 BC 8.5 1.9 L -- -- 3.9 -- --S882 ST FRANCIS RI RT0DD DUNKLIN 3 96 -- Qimp 4560 4560 BC 11.1 23.4 L -- -- 3.9 -- 31.6S924 MAIN DD RT00Z DUNKLIN 3 80 -- Qimp 1940 1940 BC 7.4 1.3 L -- -- 3.9 -- --S973 DD NO 5 RT00A DUNKLIN 3 68 -- Qimp 1210 1210 BC 6.2 1.3 L -- -- 3.8 -- --S974 MAIN DD RT00A DUNKLIN 3 72 -- Qimp 2030 2030 BC 8.1 0.9 L -- -- 3.9 -- --


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document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- P P N N N N -- -- Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Minor contraction scour on R setback.-- N P N Y ? N -- -- In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks--will not be overtopped. Moderate cutbanks on LB.-- -- -- -- -- -- -- -- -- Very well protected new bridge, with riprap on abutments, aprons, and banks. Levees on both U/S & D/S banks.-- -- -- -- -- -- -- -- -- Very well protected new bridge, with riprap on abutments, aprons, and banks. Levees on both U/S & D/S banks partially protected with riprap.-- P P N N ? Y Y -- In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Man-made levees on both U/S & D/S banks.-- N P N N N N -- -- No signs of scour. Abutment gully washing on both sides.

15.3 N Y N N N N -- -- Mostly residential, small slough, no signs of scour. FPs are residential lawns.18.5 P Y N N N N -- -- Man-made/dredge levee on U/S & D/S LB--will not be overtopped by Qimp, and will direct flow through bridge. Assorted debris on RFP.17.5 P Y N N ? M ? -- Poured concrete around vertical abutments. Some additional riprap. Grader blades visible.11.9 P Y N N ? N -- -- No comments

-- -- -- -- -- -- -- -- -- In flood--unable to see pier foundations. Well protected with riprap on both abutments and banks. Man-made levees on both U/S & D/S banks--will not be overtopped.-- -- -- -- -- -- -- -- -- Could not find.

18.8 P Y N N Y M N -- Dredge levee on U/S & D/S LB--may be overtopped by Qimp, but will direct flow through bridge. Both abutments appear slightly undercut. Old abutment under bridge. Some riprap on R abutment apron.14.4 N P N N N N -- -- Approx 1 bridge length U/S, levees are higher than road. FP widths reduced to effective. Blowhole at bridge.

-- N P N P N N -- -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Cutting of banks under bridge. Remnant of riprap cobbles, washed away or buried.-- -- -- -- -- -- -- -- -- Well protected with riprap on both abutments and banks. Levees on both banks, only mildly contracting. No signs of contraction/local scour on L setback.

17.9 P Y N Y N N -- -- Cutbank on U/S RB, continues D/S under bridge--R abutment headwall substantially exposed. U/S L lateral ditch heavily slumped.19.4 P Y N N N Y ? -- In flood--unable to see pier foundations. Both abutments fully protected and lined with concrete. Grader blades on U/S LB.15.2 P Y N N N N -- -- In flood--unable to see pier foundations. Dredge levee on bothU/S banks--may be overtopped by Qimp, but will direct flow through bridge. Abutment headwall undercut. Marginal poured concrete & asphalt on both abutments. Lateral ditch on U/S RB18.4 Y Y N N ? N -- -- In flood--unable to see pier foundations. Natural levees on U/S banks. Dredge levee on D/S RB.17.8 N Y N Y Y N -- -- In flood--unable to see pier foundations. Mild local scour on L setback, erosion visible on both abutments.

-- P N N P N N -- -- In flood--unable to see pier foundations. Very poorly defined channel. Road overflow section on LFP. Gully erosion on L abutment.20.0 Q500 39000 39000 GAGE 13.7 1.2 L 15.3 15.3 8.6 3.9 21.4 21.4 N P N N N Y N -- Stone revetment on abutments; D/S RR bridge - plate girder

-- P Y N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge.39.3 P Y N N N Y ? -- Cobbles and boulders on both abutment faces18.1 P Y N N N N -- -- Natural levees U/S. Abutment headwalls nearly undermined.

-- P P N Y N M ? -- Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge. Deeply incised channel, moderate riprap on R abutment & partial on RB.15.9 Y Y N N ? M N -- In flood--unable to see pier foundations. Current water surface approx 4.5' below low steel. Asphalted riprap on L abutment--slumping. No levees, pseudo-setback on R side. Blowhole D/S.23.8 N P N P ? N -- -- In flood--unable to see pier foundations or channel configuraion. Qimp taken from saddle in U/S L levee--both banks leveed. Road much lower beyond levees.

-- Y Y N N Y N -- -- Shallow channel. Concrete connecting caps exposed. Dredge levee on U/S & D/S RB--may be overtopped, but will direct flow through bridge.15.5 Y P N N Y N -- -- Shallow channel approaches at 45 deg. "Major" channel which parallels road on R side confluences immediately U/S. Concrete connecting caps exposed. Levee on LB.

-- Y Y N N ? N -- -- In flood--unable to see pier foundations. Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge.-- Y Y N N ? N -- -- In flood--unable to see pier foundations. Man-made levee on RB, dredge levee on LB.-- P Y N N Y N -- -- Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Slight blowhole under bridge.-- P Y N N Y N -- -- Channel bends and parallels road on U/S LFP. Qimp taken from U/S R levee. Built w/o skew--Qimp will approach at as much as 60 deg dependent on velocity--taken as 30 deg. Shallow channel.-- N P N N ? N -- -- In flood--unable to see pier foundations. Man-made levees on both U/S & D/S banks.-- Y Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Deep road drain ditches on all sides.-- Y Y N N N N -- -- In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks--will not be overtopped. Moderate cutbanks on LB.-- P Y N N N N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Current water surface 2' below low steel

16.6 P Y N N ? M N -- Marginal riprap on R abutment. Concrete connecting caps exposed.-- P Y N N ? N -- -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Old bridge abutment remains under bridge, offering some abutment protection.

31.4 Y Y N N N Y ? -- In flood--unable to see pier foundations or channel configuration. Abutments covered with inlaid cobbling on abutment & U/S & D/S embankment faces. Low velocities, thick timber U/S & D/S.-- P Y N N N N -- -- Man-made levees on both U/S & D/S banks--will not be overtopped. No signs of scour -- P Y N N N N -- -- Man-made/dredge levees on both U/S banks--will not be overtopped. Concrete connecting caps exposed -- P Y N N N Y ? -- Poured concrete on abutment aprons, headwalls slightly undercut. Debris on L bent.


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District 10

Comment codes:

Notes


Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Minor contraction scour on R setback.In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks--will not be overtopped. Moderate cutbanks on LB.Very well protected new bridge, with riprap on abutments, aprons, and banks. Levees on both U/S & D/S banks.Very well protected new bridge, with riprap on abutments, aprons, and banks. Levees on both U/S & D/S banks partially protected with riprap.In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Man-made levees on both U/S & D/S banks.No signs of scour. Abutment gully washing on both sides.Mostly residential, small slough, no signs of scour. FPs are residential lawns.Man-made/dredge levee on U/S & D/S LB--will not be overtopped by Qimp, and will direct flow through bridge. Assorted debris on RFP.Poured concrete around vertical abutments. Some additional riprap. Grader blades visible.No commentsIn flood--unable to see pier foundations. Well protected with riprap on both abutments and banks. Man-made levees on both U/S & D/S banks--will not be overtopped.Could not find.Dredge levee on U/S & D/S LB--may be overtopped by Qimp, but will direct flow through bridge. Both abutments appear slightly undercut. Old abutment under bridge. Some riprap on R abutment apron.Approx 1 bridge length U/S, levees are higher than road. FP widths reduced to effective. Blowhole at bridge.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Cutting of banks under bridge. Remnant of riprap cobbles, washed away or buried.Well protected with riprap on both abutments and banks. Levees on both banks, only mildly contracting. No signs of contraction/local scour on L setback.Cutbank on U/S RB, continues D/S under bridge--R abutment headwall substantially exposed. U/S L lateral ditch heavily slumped.In flood--unable to see pier foundations. Both abutments fully protected and lined with concrete. Grader blades on U/S LB.In flood--unable to see pier foundations. Dredge levee on bothU/S banks--may be overtopped by Qimp, but will direct flow through bridge. Abutment headwall undercut. Marginal poured concrete & asphalt on both abutments. Lateral ditch on U/S RBIn flood--unable to see pier foundations. Natural levees on U/S banks. Dredge levee on D/S RB.In flood--unable to see pier foundations. Mild local scour on L setback, erosion visible on both abutments.In flood--unable to see pier foundations. Very poorly defined channel. Road overflow section on LFP. Gully erosion on L abutment.Stone revetment on abutments; D/S RR bridge - plate girderIn flood--unable to see pier foundations. Dredge levees on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge.Cobbles and boulders on both abutment facesNatural levees U/S. Abutment headwalls nearly undermined.Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge. Deeply incised channel, moderate riprap on R abutment & partial on RB.In flood--unable to see pier foundations. Current water surface approx 4.5' below low steel. Asphalted riprap on L abutment--slumping. No levees, pseudo-setback on R side. Blowhole D/S.In flood--unable to see pier foundations or channel configuraion. Qimp taken from saddle in U/S L levee--both banks leveed. Road much lower beyond levees.Shallow channel. Concrete connecting caps exposed. Dredge levee on U/S & D/S RB--may be overtopped, but will direct flow through bridge.Shallow channel approaches at 45 deg. "Major" channel which parallels road on R side confluences immediately U/S. Concrete connecting caps exposed. Levee on LB.In flood--unable to see pier foundations. Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Man-made levee on RB, dredge levee on LB.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Slight blowhole under bridge.Channel bends and parallels road on U/S LFP. Qimp taken from U/S R levee. Built w/o skew--Qimp will approach at as much as 60 deg dependent on velocity--taken as 30 deg. Shallow channel.In flood--unable to see pier foundations. Man-made levees on both U/S & D/S banks.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Deep road drain ditches on all sides.In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks--will not be overtopped. Moderate cutbanks on LB.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Current water surface 2' below low steelMarginal riprap on R abutment. Concrete connecting caps exposed.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Old bridge abutment remains under bridge, offering some abutment protection.In flood--unable to see pier foundations or channel configuration. Abutments covered with inlaid cobbling on abutment & U/S & D/S embankment faces. Low velocities, thick timber U/S & D/S.Man-made levees on both U/S & D/S banks--will not be overtopped. No signs of scour Man-made/dredge levees on both U/S banks--will not be overtopped. Concrete connecting caps exposed Poured concrete on abutment aprons, headwalls slightly undercut. Debris on L bent.


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District 10

Levees on both banks/FPs--no contraction at bridge. Main channel piers designed to resist scour. Minor contraction scour on R setback.In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks--will not be overtopped. Moderate cutbanks on LB.Very well protected new bridge, with riprap on abutments, aprons, and banks. Levees on both U/S & D/S banks.Very well protected new bridge, with riprap on abutments, aprons, and banks. Levees on both U/S & D/S banks partially protected with riprap.In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Man-made levees on both U/S & D/S banks.No signs of scour. Abutment gully washing on both sides.Mostly residential, small slough, no signs of scour. FPs are residential lawns.Man-made/dredge levee on U/S & D/S LB--will not be overtopped by Qimp, and will direct flow through bridge. Assorted debris on RFP.Poured concrete around vertical abutments. Some additional riprap. Grader blades visible.No commentsIn flood--unable to see pier foundations. Well protected with riprap on both abutments and banks. Man-made levees on both U/S & D/S banks--will not be overtopped.Could not find.Dredge levee on U/S & D/S LB--may be overtopped by Qimp, but will direct flow through bridge. Both abutments appear slightly undercut. Old abutment under bridge. Some riprap on R abutment apron.Approx 1 bridge length U/S, levees are higher than road. FP widths reduced to effective. Blowhole at bridge.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Cutting of banks under bridge. Remnant of riprap cobbles, washed away or buried.Well protected with riprap on both abutments and banks. Levees on both banks, only mildly contracting. No signs of contraction/local scour on L setback.Cutbank on U/S RB, continues D/S under bridge--R abutment headwall substantially exposed. U/S L lateral ditch heavily slumped.In flood--unable to see pier foundations. Both abutments fully protected and lined with concrete. Grader blades on U/S LB.In flood--unable to see pier foundations. Dredge levee on bothU/S banks--may be overtopped by Qimp, but will direct flow through bridge. Abutment headwall undercut. Marginal poured concrete & asphalt on both abutments. Lateral ditch on U/S RBIn flood--unable to see pier foundations. Natural levees on U/S banks. Dredge levee on D/S RB.In flood--unable to see pier foundations. Mild local scour on L setback, erosion visible on both abutments.In flood--unable to see pier foundations. Very poorly defined channel. Road overflow section on LFP. Gully erosion on L abutment.Stone revetment on abutments; D/S RR bridge - plate girderIn flood--unable to see pier foundations. Dredge levees on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge.Cobbles and boulders on both abutment facesNatural levees U/S. Abutment headwalls nearly undermined.Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge. Deeply incised channel, moderate riprap on R abutment & partial on RB.In flood--unable to see pier foundations. Current water surface approx 4.5' below low steel. Asphalted riprap on L abutment--slumping. No levees, pseudo-setback on R side. Blowhole D/S.In flood--unable to see pier foundations or channel configuraion. Qimp taken from saddle in U/S L levee--both banks leveed. Road much lower beyond levees.Shallow channel. Concrete connecting caps exposed. Dredge levee on U/S & D/S RB--may be overtopped, but will direct flow through bridge.Shallow channel approaches at 45 deg. "Major" channel which parallels road on R side confluences immediately U/S. Concrete connecting caps exposed. Levee on LB.In flood--unable to see pier foundations. Dredge levee on U/S RB--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Man-made levee on RB, dredge levee on LB.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Slight blowhole under bridge.Channel bends and parallels road on U/S LFP. Qimp taken from U/S R levee. Built w/o skew--Qimp will approach at as much as 60 deg dependent on velocity--taken as 30 deg. Shallow channel.In flood--unable to see pier foundations. Man-made levees on both U/S & D/S banks.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Deep road drain ditches on all sides.In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks--will not be overtopped. Moderate cutbanks on LB.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Current water surface 2' below low steelMarginal riprap on R abutment. Concrete connecting caps exposed.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Old bridge abutment remains under bridge, offering some abutment protection.In flood--unable to see pier foundations or channel configuration. Abutments covered with inlaid cobbling on abutment & U/S & D/S embankment faces. Low velocities, thick timber U/S & D/S.Man-made levees on both U/S & D/S banks--will not be overtopped. No signs of scour Man-made/dredge levees on both U/S banks--will not be overtopped. Concrete connecting caps exposed Poured concrete on abutment aprons, headwalls slightly undercut. Debris on L bent.

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document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]S975 LEVEE DD RT00A DUNKLIN 3 76 -- Qimp 1060 1060 BC 5.3 5.4 L -- -- 3.8 -- --T1032 ROAD DITCH MO 53 DUNKLIN 3 48 -- Qimp 961 961 BC 6.8 1.7 L -- -- 3.8 -- --T849 HONEY CYPRESS DD RT00P DUNKLIN 3 83 -- Qimp 2990 2990 BC 9.6 3.7 L 11.3 7.6 3.9 -- 22.4T850 KINNEMORE DD RT00P DUNKLIN 3 53 -- Qimp 921 921 BC 6.1 1.0 L -- -- 5.4 -- --T851 KINNEMORE DD RT00P DUNKLIN 3 121 -- Qimp 629 629 BC 6.6 2.0 L -- -- 3.8 -- --T912 MAIN DD MO153 DUNKLIN 3 94 -- Qimp 2100 2100 BC 9.2 0.9 L -- -- 8.0 -- --X511 DD NO 78 RT0NN DUNKLIN 3 49 -- Qimp 1500 1500 BC 8.5 1.8 L -- -- 3.9 -- --X512 ELK CHUTE DD RT0NN DUNKLIN 3 207 -- Qimp 21200 21200 BC 17.7 9.3 L 21.9 19.5 -- -- 23.1X586 LAT 2 DD NO 12 RT00H DUNKLIN 3 107 -- Qimp 7370 7370 BC 13.9 0.3 L -- 15.7 3.9 -- --X658 KINNEMORE DD RT0FF DUNKLIN 3 57 -- Qimp 1780 1780 BC 8.7 1.2 L -- -- 3.9 -- --A3300 CASTOR RI RT0DD MADISON 2 287 116 Q100 28100 28100 REG 16.5 -- -- -- -- -- -- --F537 BR 12 MILE CR & RD US 67 MADISON 2 27 1.77 Q100 1900 1720 BC 12.8 6.8 L -- -- -- -- 29.9N271 MARBLE CR RT00E MADISON 2 233 46.2 Q100 18400 18400 REG 14.5 -- -- -- -- -- -- --S437 DD NO 14 RT00D MISSISSIPPI 3 93 -- Qimp 4410 4410 BC 11.2 1.2 L -- -- 5.5 -- --A1144A&B N CUT DITCH IS055 NEW MADRID 3 250 -- Qimp 8640 8640 BC 11.3 2.5 L 6.8 5.5 3.9 -- 6.2A1145A&B ST JOHNS DD IS055 NEW MADRID 3 242 -- Qimp 8360 8360 BC 11.3 1.7 L 8.6 -- 3.9 -- 11.9A1228 MAIN DITCH MO162 NEW MADRID 3 84 -- Qimp 3930 3930 BC 11.0 0.0 L -- -- 3.9 -- --A1373A&B PORTAGE OPEN BAYOU IS055 NEW MADRID 3 147 -- Qimp -- -- -- -- -- -- -- -- -- -- --A13751 PORTAGE OPEN BAYOU IS055 NEW MADRID 3 292 -- Qimp 11600 11600 BC 11.7 0.0 L 23.5 22.0 16.3 -- 21.3A158 OTTER SL DD RT00W NEW MADRID 3 119 -- Qimp 4990 4990 BC 10.3 0.4 L -- -- 3.9 -- --A159 ASH SL DD RT00W NEW MADRID 3 91 -- Qimp 2740 2740 BC 8.6 0.7 L 8.6 6.4 5.1 -- --A160 DD NO 45 RT00W NEW MADRID 3 83 -- Qimp 2150 2150 BC 7.7 0.0 L 8.2 14.5 5.1 -- --A19821 PORTAGE OPEN BAYOU IS055 NEW MADRID 3 228 -- Qimp 9040 9040 BC 11.7 0.0 L 19.6 18.5 16.3 -- 21.3A2140 EAST BAYOU RT0WW NEW MADRID 3 214 -- Qimp 25800 25800 BC 19.5 9.2 L -- -- 7.7 -- 19.5A2141 WILSON BAYOU RT0WW NEW MADRID 3 102 -- Qimp 8550 8550 BC 15.7 9.2 L -- 7.6 5.2 -- 19.1A2363 DD NO 3 MO153 NEW MADRID 3 160 -- Qimp 5590 5590 BC 10.4 8.0 L -- -- 5.1 5.1 16.7A238A&B ST JOHNS DD US060 NEW MADRID 3 139 -- Qimp 4660 4660 BC 9.0 6.2 L -- -- 5.1 -- 13.4A2534 SPILLWAY DD RT00P NEW MADRID 3 281 -- Qimp 31800 31800 BC 19.5 4.6 L 9.6 9.6 7.7 -- 18.4A2933 LITTLE RI US062 NEW MADRID 3 239 -- Qimp 21800 21800 BC 16.5 3.9 L -- -- 6.4 3.9 16.7A3268 DD NO 3 MO162 NEW MADRID 3 121 -- Qimp 4910 4910 BC 10.1 4.1 L -- 10.5 3.9 -- --A3269 DD NO 4 MO162 NEW MADRID 3 106 -- Qimp 4160 4160 BC 9.9 1.6 L -- -- 3.9 -- --A3270 DD NO 5 MO162 NEW MADRID 3 113 -- Qimp 2990 2990 BC 8.8 1.0 L -- -- 3.9 -- --A3271 DD NO 6 MO162 NEW MADRID 3 138 -- Qimp 6440 6440 BC 12.4 0.4 L -- -- 3.9 -- --A3272 DD NO 9 MO162 NEW MADRID 3 124 -- Qimp -- -- -- -- -- -- -- -- -- -- --F204 DD NO 44 US062 NEW MADRID 3 40 -- Qimp 1760 1760 BC 10.6 4.1 L -- -- -- -- 15.5F205 DD NO 43 US062 NEW MADRID 3 58 -- Qimp 2590 2590 BC 10.7 1.7 L -- -- -- -- --F270 DRAINAGE DITCH RT00F NEW MADRID 3 65 -- Qimp 1980 1980 BC 8.5 3.5 L -- -- 5.1 -- --H849 DD NO 37 US061 NEW MADRID 3 48 -- Qimp 977 977 BC 8.2 10.2 L -- -- -- -- 22.4H850 DD NO 18 US061 NEW MADRID 3 88 -- Qimp 1540 1540 BC 7.5 0.0 L -- -- 7.6 -- --H851 PORTAGE OPEN BAYOU RT00T NEW MADRID 3 125 -- Qimp 10700 10700 BC 16.0 1.5 L 20.5 23.4 11.5 -- 14.0J142 DD DIST 33 US062 NEW MADRID 3 83 -- Qimp -- -- -- -- -- -- -- -- -- -- --J144 DD NO 2 US062 NEW MADRID 3 128 -- Qimp -- -- -- -- -- -- -- -- -- -- --J17 DD NO 290 US062 NEW MADRID 3 100 -- Qimp -- -- -- -- -- -- -- -- -- -- --J18 DD NO 1 US062 NEW MADRID 3 294 -- Qimp -- -- -- -- -- -- -- -- -- -- --J258 DD NO 8 US062 NEW MADRID 3 100 -- Qimp -- -- -- -- -- -- -- -- -- -- --


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document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]16.0 P Y N N N N -- -- Dredge levee/County road embankment on U/S LB--may be overtopped, but will direct flow through bridge. U/S channel full of undergowth.

-- Y Y N N N N -- -- Roadside ditch; scour hole at RB under bridge; evidence of stone revetment on L abutment face-- P Y N N N N -- -- In flood--unable to see pier foundations. Man-made/dredge levees on U/S RB--may be overtopped by Qimp, but will direct flow through bridge.-- P Y N P N N -- -- In flood--unable to see pier foundations. Man-made/dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Pipe culvert under county road D/S, causing backwater.-- P Y N N N M N -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Severe skew. Abutments covered with asphalt & tar. 6' diameter pipe culvert under county road D/S, causing backwater.-- N Y N N N N -- -- Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Large skew--U/S LFP is a road embankment.

10.6 Y Y N N N N -- -- Dredge levee on U/S & D/S LB--may be overtopped by Qimp, but will direct flow through bridge. Headwalls nearly undermined.22.4 P Y N N ? N -- -- In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks & FPs--will not be overtopped.

-- N Y N Y N M N -- LB mildly protected with cobbles & grader blades. Concrete on LB & channel. Severe abutment & bank erosion on R side. U/S R lateral DD severely eroded out.-- P Y N P N M N -- In flood--unable to see pier foundations. Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Moderate riprap on R abument. County road on D/S RFP.-- Q500 38500 38500 REG 20.0 -- -- -- -- -- -- -- -- Y N P P Y Y ? -- ? Concreted riprap on both abutments & both embankment faces. Supplimental riprap on L abutment toe. Piers designed to resist scour. Flagged due to footing exposure at all 4 bents--confirmed top of footing at bent 2 only--recovered, or founded on bedrock.

24.6 Qimp 1540 1540 BC 12.0 7.7 L -- -- -- -- 28.8 22.2 P Y N N N N -- -- Old 1-span bridge; no piers; vertical abutments with wingwalls-- Q500 25500 25500 REG 17.7 -- -- -- -- -- -- -- -- N N Y N N N -- -- Over granite channel. Flagged due to footing exposure--founded on granite; no threat.-- Y Y N P ? M N -- In flood--unable to see foundations. Discontinuous levees on both U/S banks--will not be overtopped by Qimp, and will direct flow through bridge. Riprap on LB & abutment

12.9 Y Y N N ? N -- -- In flood--unable to see foundations. Contraction scour/blowhole on L side under bridge. Pseudo-setbacks on both sides approx equal to elev of levee on U/S RB; levee on U/S LB--both will be overtopped by Qimp.-- Y Y N N ? N -- -- In flood--unable to see foundations. Levee on U/S RB will not be overtopped by Qimp. Levee on LB will be overtopped--taken as FP elev. Pseudo-setback on L side.-- P Y N N Y N -- -- FPs same elevation as road. Pseudo-setback on L side--minor contraction scour on L side.-- P P N N N N -- -- Not required--D/S of A1817 (not flagged). No contraction, levees on both banks.

15.3 P Y N Y Y M N -- D/S of A1892R1. Built w/o skew, channel approaches at 40 deg. Local scour at bents. Minimal riprap on upper abutment faces.-- P Y N P ? N -- -- In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- P Y N N N N -- -- Dredge levees on both U/S & D/S FPs--may be overtopped, but will direct flow through bridge. R abutment is severely slumped. Moderate erosion on R banks.-- P Y N N N N -- -- Dredge levees on both U/S & D/S FPs--may be overtopped, but will direct flow through bridge. Cutbank & mass wasting on LB & abutment.

15.3 P Y N Y Y M N -- U/S of A1375R1. Built w/o skew, channel approaches at 40 deg. Local scour at bents. Minimal riprap on upper abutment faces.19.5 Y N N N N Y ? -- In mild flood--unable to see pier foundations or exact channel configuration. Piers designed to resist scour. Marginal riprap on both abutments.15.2 Y P N P ? M N -- Gated levee D/S, causing backwater at bridge. Marginal riprap/concrete debris on both banks/abutments.20.9 N P N N N N -- -- Cutbank on R abutment & bank. Cobbles placed on LB where abutment gully washing is worst.15.0 P Y N N N M N -- Very shallow channel. Low steel to thalweg approx 5'. Minimal riprap on abutments--possibly some in channel.18.4 Y N N P ? N -- -- In flood--unable to see foundations & exact channel configuration. Piers designed to resist scour. Large levee on L FP for MI River. Terraced banks.16.7 Y P N N ? Y Y -- Riprap on both banks & abutments. Concrete sleeves on lower portion of main channel piles13.8 P Y N N N N -- -- Dredge levee on U/S RB--may be overtopped, but will direct flow through bridge. Abutment gully washing on both sides. RFP is small church, grain elevator.

-- N Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutment gully washing on both sides. Partial riprap on L abutment. Residential area on RFP.-- P Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutment gully washing on L side. Riprap cobbles on L abutment, partially buried.-- P Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Very small amount of riprap on LB & abutment. Grader blades used for retention, riprap possibly buried.-- -- -- -- -- -- -- -- -- Very well protected with riprap on both banks/abutments for several bridge lengths U/S & D/S. Man-made levees on both banks--no contraction at bridge.

15.5 P Y N N N Y N -- Headwalls undermined--covered with concreted riprap & blocks & grader blades. Piles under abutments exposed. U/S RFP is town-- P Y N N N Y N -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutments protected with concrete, cobbles & grader blades. Abutment headwalls undermined under concrete. U/S RFP residential.-- Y P N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Pseudo-setbacks & steep banks under bridge.

22.4 Y Y P N Y M N -- Slumped riprap in channel.-- P Y N N Y N -- -- FPs at same elevation as road. Shallow channel. Mild contraction scour at abutments.

9.8 P Y N N Y N -- -- Dredge levees on both U/S & D/S banks--will be overtopped. Bend in U/S channel. Mild contraction scour on both setbacks.-- -- -- -- -- -- -- -- -- Currently being replaced-- -- -- -- -- -- -- -- -- Replaced with ?? Structure number not painted on bridge-- -- -- -- -- -- -- -- -- Replaced with A5397-- -- -- -- -- -- -- -- -- Replaced with A5398-- -- -- -- -- -- -- -- -- Replaced with A5042; new bridge, very well protected.


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District 10

Comment codes:

Notes


Dredge levee/County road embankment on U/S LB--may be overtopped, but will direct flow through bridge. U/S channel full of undergowth.Roadside ditch; scour hole at RB under bridge; evidence of stone revetment on L abutment faceIn flood--unable to see pier foundations. Man-made/dredge levees on U/S RB--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Man-made/dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Pipe culvert under county road D/S, causing backwater.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Severe skew. Abutments covered with asphalt & tar. 6' diameter pipe culvert under county road D/S, causing backwater.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Large skew--U/S LFP is a road embankment.Dredge levee on U/S & D/S LB--may be overtopped by Qimp, but will direct flow through bridge. Headwalls nearly undermined.In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks & FPs--will not be overtopped.LB mildly protected with cobbles & grader blades. Concrete on LB & channel. Severe abutment & bank erosion on R side. U/S R lateral DD severely eroded out.In flood--unable to see pier foundations. Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Moderate riprap on R abument. County road on D/S RFP.? Concreted riprap on both abutments & both embankment faces. Supplimental riprap on L abutment toe. Piers designed to resist scour. Flagged due to footing exposure at all 4 bents--confirmed top of footing at bent 2 only--recovered, or founded on bedrock.Old 1-span bridge; no piers; vertical abutments with wingwallsOver granite channel. Flagged due to footing exposure--founded on granite; no threat.In flood--unable to see foundations. Discontinuous levees on both U/S banks--will not be overtopped by Qimp, and will direct flow through bridge. Riprap on LB & abutmentIn flood--unable to see foundations. Contraction scour/blowhole on L side under bridge. Pseudo-setbacks on both sides approx equal to elev of levee on U/S RB; levee on U/S LB--both will be overtopped by Qimp.In flood--unable to see foundations. Levee on U/S RB will not be overtopped by Qimp. Levee on LB will be overtopped--taken as FP elev. Pseudo-setback on L side.FPs same elevation as road. Pseudo-setback on L side--minor contraction scour on L side.Not required--D/S of A1817 (not flagged). No contraction, levees on both banks.D/S of A1892R1. Built w/o skew, channel approaches at 40 deg. Local scour at bents. Minimal riprap on upper abutment faces.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.Dredge levees on both U/S & D/S FPs--may be overtopped, but will direct flow through bridge. R abutment is severely slumped. Moderate erosion on R banks.Dredge levees on both U/S & D/S FPs--may be overtopped, but will direct flow through bridge. Cutbank & mass wasting on LB & abutment.U/S of A1375R1. Built w/o skew, channel approaches at 40 deg. Local scour at bents. Minimal riprap on upper abutment faces.In mild flood--unable to see pier foundations or exact channel configuration. Piers designed to resist scour. Marginal riprap on both abutments.Gated levee D/S, causing backwater at bridge. Marginal riprap/concrete debris on both banks/abutments.Cutbank on R abutment & bank. Cobbles placed on LB where abutment gully washing is worst.Very shallow channel. Low steel to thalweg approx 5'. Minimal riprap on abutments--possibly some in channel.In flood--unable to see foundations & exact channel configuration. Piers designed to resist scour. Large levee on L FP for MI River. Terraced banks.Riprap on both banks & abutments. Concrete sleeves on lower portion of main channel pilesDredge levee on U/S RB--may be overtopped, but will direct flow through bridge. Abutment gully washing on both sides. RFP is small church, grain elevator.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutment gully washing on both sides. Partial riprap on L abutment. Residential area on RFP.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutment gully washing on L side. Riprap cobbles on L abutment, partially buried.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Very small amount of riprap on LB & abutment. Grader blades used for retention, riprap possibly buried.Very well protected with riprap on both banks/abutments for several bridge lengths U/S & D/S. Man-made levees on both banks--no contraction at bridge.Headwalls undermined--covered with concreted riprap & blocks & grader blades. Piles under abutments exposed. U/S RFP is townDredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutments protected with concrete, cobbles & grader blades. Abutment headwalls undermined under concrete. U/S RFP residential.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Pseudo-setbacks & steep banks under bridge.Slumped riprap in channel.FPs at same elevation as road. Shallow channel. Mild contraction scour at abutments.Dredge levees on both U/S & D/S banks--will be overtopped. Bend in U/S channel. Mild contraction scour on both setbacks.Currently being replacedReplaced with ?? Structure number not painted on bridgeReplaced with A5397Replaced with A5398Replaced with A5042; new bridge, very well protected.


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AT10


document.xls

District 10

Dredge levee/County road embankment on U/S LB--may be overtopped, but will direct flow through bridge. U/S channel full of undergowth.Roadside ditch; scour hole at RB under bridge; evidence of stone revetment on L abutment faceIn flood--unable to see pier foundations. Man-made/dredge levees on U/S RB--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Man-made/dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Pipe culvert under county road D/S, causing backwater.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Severe skew. Abutments covered with asphalt & tar. 6' diameter pipe culvert under county road D/S, causing backwater.Dredge levee on both U/S & D/S banks--may be overtopped by Qimp, but will direct flow through bridge. Large skew--U/S LFP is a road embankment.Dredge levee on U/S & D/S LB--may be overtopped by Qimp, but will direct flow through bridge. Headwalls nearly undermined.In mild flood--unable to see pier foundations. Man-made levees on U/S & D/S banks & FPs--will not be overtopped.LB mildly protected with cobbles & grader blades. Concrete on LB & channel. Severe abutment & bank erosion on R side. U/S R lateral DD severely eroded out.In flood--unable to see pier foundations. Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Moderate riprap on R abument. County road on D/S RFP.? Concreted riprap on both abutments & both embankment faces. Supplimental riprap on L abutment toe. Piers designed to resist scour. Flagged due to footing exposure at all 4 bents--confirmed top of footing at bent 2 only--recovered, or founded on bedrock.Old 1-span bridge; no piers; vertical abutments with wingwallsOver granite channel. Flagged due to footing exposure--founded on granite; no threat.In flood--unable to see foundations. Discontinuous levees on both U/S banks--will not be overtopped by Qimp, and will direct flow through bridge. Riprap on LB & abutmentIn flood--unable to see foundations. Contraction scour/blowhole on L side under bridge. Pseudo-setbacks on both sides approx equal to elev of levee on U/S RB; levee on U/S LB--both will be overtopped by Qimp.In flood--unable to see foundations. Levee on U/S RB will not be overtopped by Qimp. Levee on LB will be overtopped--taken as FP elev. Pseudo-setback on L side.FPs same elevation as road. Pseudo-setback on L side--minor contraction scour on L side.Not required--D/S of A1817 (not flagged). No contraction, levees on both banks.D/S of A1892R1. Built w/o skew, channel approaches at 40 deg. Local scour at bents. Minimal riprap on upper abutment faces.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.Dredge levees on both U/S & D/S FPs--may be overtopped, but will direct flow through bridge. R abutment is severely slumped. Moderate erosion on R banks.Dredge levees on both U/S & D/S FPs--may be overtopped, but will direct flow through bridge. Cutbank & mass wasting on LB & abutment.U/S of A1375R1. Built w/o skew, channel approaches at 40 deg. Local scour at bents. Minimal riprap on upper abutment faces.In mild flood--unable to see pier foundations or exact channel configuration. Piers designed to resist scour. Marginal riprap on both abutments.Gated levee D/S, causing backwater at bridge. Marginal riprap/concrete debris on both banks/abutments.Cutbank on R abutment & bank. Cobbles placed on LB where abutment gully washing is worst.Very shallow channel. Low steel to thalweg approx 5'. Minimal riprap on abutments--possibly some in channel.In flood--unable to see foundations & exact channel configuration. Piers designed to resist scour. Large levee on L FP for MI River. Terraced banks.Riprap on both banks & abutments. Concrete sleeves on lower portion of main channel pilesDredge levee on U/S RB--may be overtopped, but will direct flow through bridge. Abutment gully washing on both sides. RFP is small church, grain elevator.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutment gully washing on both sides. Partial riprap on L abutment. Residential area on RFP.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutment gully washing on L side. Riprap cobbles on L abutment, partially buried.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Very small amount of riprap on LB & abutment. Grader blades used for retention, riprap possibly buried.Very well protected with riprap on both banks/abutments for several bridge lengths U/S & D/S. Man-made levees on both banks--no contraction at bridge.Headwalls undermined--covered with concreted riprap & blocks & grader blades. Piles under abutments exposed. U/S RFP is townDredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Abutments protected with concrete, cobbles & grader blades. Abutment headwalls undermined under concrete. U/S RFP residential.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Pseudo-setbacks & steep banks under bridge.Slumped riprap in channel.FPs at same elevation as road. Shallow channel. Mild contraction scour at abutments.Dredge levees on both U/S & D/S banks--will be overtopped. Bend in U/S channel. Mild contraction scour on both setbacks.Currently being replacedReplaced with ?? Structure number not painted on bridgeReplaced with A5397Replaced with A5398Replaced with A5042; new bridge, very well protected.

BN BO BP123456789

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document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]K787 ST JOHNS DD MO080 NEW MADRID 3 133 -- Qimp 2360 2360 BC 6.5 0.0 L -- -- 3.8 -- --L219 CANEY SL RT00D NEW MADRID 3 55 -- Qimp 818 818 BC 5.5 5.0 L -- -- 3.8 -- 16.5L220 DD NO 43 RT00D NEW MADRID 3 71 -- Qimp 2840 2840 BC 10.0 0.0 L -- -- 3.9 -- --L221 DD NO 42 RT00D NEW MADRID 3 67 -- Qimp 2590 2590 BC 9.8 1.4 L -- -- 3.9 -- --L223 DD NO 40 RT00D NEW MADRID 3 65 -- Qimp 3270 3270 BC 11.5 4.6 L -- -- 3.9 -- --L224 DD NO 1 RT00D NEW MADRID 3 247 -- Qimp 41900 41900 BC 24.0 0.0 L -- -- 7.8 -- --L226 DD NO 1 RT00D NEW MADRID 3 63 -- Qimp 2360 2360 BC 10.0 0.9 L -- -- 3.9 -- --L227 DD NO 2 RT00D NEW MADRID 3 83 -- Qimp 2120 2120 BC 7.7 0.0 L -- 11.3 3.9 -- 3.8L228 DD NO 3 RT00D NEW MADRID 3 57 -- Qimp 1380 1380 BC 7.4 4.4 L -- -- 3.9 -- 12.0L236 CADE SCHOOL MO080 NEW MADRID 3 45 -- Qimp 629 629 BC 5.3 13.4 L -- -- -- -- 21.0L237 MAIN DD DIST NO 1 MO080 NEW MADRID 3 65 -- Qimp 1470 1470 BC 7.1 3.0 L -- -- 3.9 -- 16.0L238 LAT NO 2 DD NO 5 MO080 NEW MADRID 3 67 -- Qimp 2900 2900 BC 10.5 6.2 L -- -- 3.9 -- 19.9L453 DD NO 290 MO162 NEW MADRID 3 147 -- Qimp -- -- -- -- -- -- -- -- -- -- --L454 DD NO 1 MO162 NEW MADRID 3 241 -- Qimp -- -- -- -- -- -- -- -- -- -- --L455 DD NO 251 MO162 NEW MADRID 3 241 -- Qimp -- -- -- -- -- -- -- -- -- -- --L456 DD NO 256 MO162 NEW MADRID 3 83 -- Qimp -- -- -- -- -- -- -- -- -- -- --L458 DD NO 60 MO162 NEW MADRID 3 57 -- Qimp 2280 2280 BC 10.0 1.5 L -- -- 5.1 -- --L459 LITTLE RI MO162 NEW MADRID 3 135 -- Qimp 6420 6420 BC 13.7 7.0 L -- -- 5.2 -- 15.8L587 DD NO 60 RT00B NEW MADRID 3 59 -- Qimp 1980 1980 BC 9.0 1.5 L -- -- 3.9 -- --L618 OTTER SL DD RT00H NEW MADRID 3 83 -- Qimp 987 987 BC 5.1 6.1 L -- -- 3.8 -- 14.2L619 ASH SL DD RT00H NEW MADRID 3 71 -- Qimp 1660 1660 BC 7.3 3.7 L -- -- 3.9 -- 16.1L620 DRAINAGE DITCH RT00H NEW MADRID 3 65 -- Qimp 1030 1030 BC 5.7 0.1 L -- -- 3.2 -- --L677 DD DIST 1 RT00H NEW MADRID 3 83 -- Qimp 1230 1230 BC 5.5 0.6 L -- -- 3.2 -- 3.7L765 DD NO 2 RT00D NEW MADRID 3 131 -- Qimp 6590 6590 BC 11.5 1.4 L 10.2 10.2 3.9 -- 8.6L766 DD NO 3 RT00D NEW MADRID 3 95 -- Qimp 3430 3430 BC 9.5 0.0 L -- -- 3.9 -- --L769 DD NO 6 RT00D NEW MADRID 3 95 -- Qimp 1860 1860 BC 6.5 0.0 L -- -- 3.8 -- --L770 DD NO 7 RT00D NEW MADRID 3 65 -- Qimp 2300 2300 BC 9.3 0.0 L -- -- 3.9 -- --L771 DD NO 8 RT00D NEW MADRID 3 83 -- Qimp 3370 3370 BC 10.1 0.0 L -- -- 3.9 -- --N371 DD NO 1 RT00W NEW MADRID 3 65 -- Qimp 1540 1540 BC 7.3 1.7 L -- -- 5.1 -- --N372 LITTLE RI DD RT00W NEW MADRID 3 124 -- Qimp 4630 4630 BC 9.8 1.6 L -- -- 3.9 -- --N413 LITTLE RI DD NO 29 RT0EE NEW MADRID 3 102 -- Qimp 6290 6290 BC 13.0 2.4 L -- -- 5.2 -- --N649 DD NO 258 RT00B NEW MADRID 3 161 -- Qimp 11200 11200 BC 14.0 0.0 L -- -- 5.2 -- --N771 DRY RUN DI RT00U NEW MADRID 3 65 -- Qimp 1800 1800 BC 8.0 9.2 L -- -- 3.9 -- 16.3N889 DD NO 3 RT0VV NEW MADRID 3 139 -- Qimp 3140 3140 BC 7.1 0.3 L 0.4 -- 6.2 -- --N890 DD NO 4 RT0VV NEW MADRID 3 107 -- Qimp 6400 6400 BC 12.8 0.6 L 7.1 8.6 6.3 -- --P413 NORTH CUT DD RT0AA NEW MADRID 3 131 -- Qimp 4980 4980 BC 9.7 2.0 L -- -- 3.9 -- --R454 PORTAGE OPEN BAYOU RT0TT NEW MADRID 3 102 -- Qimp 2930 2930 BC 8.2 7.2 L 13.2 11.0 3.9 -- 19.9R88 DD NO 10 RT0HH NEW MADRID 3 120 -- Qimp 1580 1580 BC 6.0 1.3 L -- 6.5 5.1 -- --S2171 DD NO 2 MO162 NEW MADRID 3 126 -- Qimp 3120 3120 BC 7.5 0.6 L 9.8 11.4 5.1 -- --S443 OTTER SL DD RT00E NEW MADRID 3 71 -- Qimp 1090 1090 BC 5.6 5.2 L -- -- 3.2 -- 11.4S611 DD NO 5 MO153 NEW MADRID 3 67 -- Qimp -- -- -- -- -- -- -- -- -- -- --S676 DD NO 8 MO153 NEW MADRID 3 75 -- Qimp 2290 2290 BC 8.5 0.9 L -- -- 3.9 -- --T253 LEVEE DD RT00E NEW MADRID 3 50 -- Qimp 1000 1000 BC 6.6 6.6 L -- -- -- -- 5.2T254 LITTLE RI DD NO 25 RT00E NEW MADRID 3 106 -- Qimp 4950 4950 BC 11.1 0.0 L -- -- 5.5 -- --T639 LITTLE RI DD NO 25 RT00D NEW MADRID 3 242 -- Qimp 11300 11300 BC 11.0 0.0 L 2.8 5.3 3.9 -- --


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M6


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D7


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document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- Y P N N ? Y ? -- In flood--unable to see foundations. Inlaid cobbling on R abutment; concreted/asphalted riprap on L abutment & U/S embankment face. High discontinuous levees on both U/S & D/S banks--will not be overtopped by Qimp. Potential problem at U/S face of L abut.

16.5 Y P N P ? N -- -- In flood--unable to see pier foundations. Poorly defined channel U/S. No levees.-- Y P N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- Y P N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Abutment planks undermined. Cutbank on U/S LB.

25.3 Y Y N N ? M ? -- In flood--unable to see pier foundations & exact channel configuration. Dredge levees on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. No levees on R side.-- Y Y N N ? Y ? -- In flood--unable to see pier foundations. Large levees on both U/S & D/S banks. Riprap on both abutments & banks.-- Y Y N N ? N -- -- In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.

6.8 Y Y N N ? N -- -- In flood--unable to see foundations. Dredge levee on U/S RB; raised FP on L side. Blowhole at bridge.12.0 Y P N N ? N -- -- In flood--unable to see foundations. Road embankment on U/S LB will not be overtopped.19.9 Y Y N P ? N -- -- In flood--unable to see foundations. Velocity almost zero.

3.6 Y Y N P ? N -- -- In flood--unable to see foundations. Natural levees U/S.19.4 Y Y N P ? N -- -- In flood--unable to see foundations. Natural levees U/S & D/S.

-- P P N N N N -- -- Levees on both banks/FPs, higher than road--no contraction at bridge. LB/abutment slumped due to minimal vegetation--not scour phenomenon.-- P P N N Y N -- -- Levees on both banks/FPs--no contraction at bridge. Blowhole at bridge, especially RB.-- P P N N Y N -- -- Levees on both banks/FPs--no contraction at bridge. Minor washout on R setback.-- Y N N N N N -- -- Road at same elevation as FPs--no contraction before overtopping. Channel recently dredged.-- P Y N N Y Y N -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on upper abutment faces & LB; slumped riprap on R abutment. Blowhole at bridge.

16.4 P Y N P Y Y ? -- Slumped riprap on both banks/abutments. Contraction scour on both banks. Cutbank on U/S LB.-- P Y N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Steep LB under bridge. U/S & D/S channels choked with vegetation.

15.4 Y Y N P ? N -- -- In flood--unable to see foundations. Natural levees U/S & D/S; possible man-made levee D/S RB.14.3 Y Y N P ? N -- -- In flood--unable to see foundations. Natural levees U/S; Levee & raised road embankment D/S.

1.2 Y P P N ? M ? -- In flood--unable to see foundations. Rock felt on channel bottom; small riprap on both banks under bridge. Concrete connecting caps visible. Natural levees U/S & D/S.1.2 Y P N N ? N -- -- In flood--unable to see foundations. No levees.

-- Y Y N N ? N -- -- In flood--unable to see pier foundations. Large dredge levee on U/S RB--will not overtop. Blowhole at bridge & terraced banks make pseudo-setbacks on both sides.-- Y Y N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- Y Y N N ? N -- -- In flood--unable to see piers or channel configuration. Pseudo-setbacks on both banks due to blowhole, but incorped into channel dimensions. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow.-- Y P N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- Y P N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on U/S LB; road embankment on U/S RB--both may be overtopped by Qimp, but will direct flow through bridge. Blowhole at bridge.-- P Y N N ? N -- -- In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- P Y N P ? N -- -- In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- Y Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Immediately U/S of confluence with Little River--subject to backwater.-- P Y N N Y M N -- Levees on both banks--will not be overtopped. Pseudo-setbacks included in channel. Concrete debris sparse on both pseudo-setbacks. Channel bends D/S & appears to meander between levees.

14.9 Y Y N N ? N -- -- In flood--unable to see foundations. No levees--dredging ongoing on U/S R & D/S LBs.-- P Y N N ? N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.-- P Y N N ? N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No signs of scour.

11.5 Y N N N ? N -- -- In flood--unable to see foundations. Large discontinuous levees on L side--will not be overtopped by Qimp. Small natural levees on R side.14.3 P Y N N ? N -- -- In mild flood--unable to see pier foundations. Mild contraction scour on both setbacks

-- P Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Significant erosion on L abutment; little on RB & abutment.-- P Y N N N N -- -- In mild flood--unable to see pier foundations. Levees on both U/S & D/S banks--will not be overtopped. No signs of scour.

11.3 Y P N N ? N -- -- In flood--unable to see foundations. Bridge slightly skewed to flow (5 deg). Natural levees U/S & D/S.-- -- -- -- -- -- -- -- -- Replaced with new box culvert with riprap along both sides.-- P Y N N N N -- -- Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Debris around both piers

20.9 Y Y N P ? N -- -- In flood--unable to see foundations. Dredge levees on U/S LB. Substantial debris on D/S LOB.-- Y Y N P ? N -- -- In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.

18.7 Y Y N P ? Y ? -- In flood--unable to see foundations or exact channel configuration. Concreted riprap on R abut & U/S embankment face. Riprap on LB. Dredge levee on U/S LB & natural levee on U/S RFP set back from channel--both will not be overtopped.


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W6


Z6


AC10


document.xls

District 10

Comment codes:

Notes


In flood--unable to see foundations. Inlaid cobbling on R abutment; concreted/asphalted riprap on L abutment & U/S embankment face. High discontinuous levees on both U/S & D/S banks--will not be overtopped by Qimp. Potential problem at U/S face of L abut.In flood--unable to see pier foundations. Poorly defined channel U/S. No levees.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Abutment planks undermined. Cutbank on U/S LB.In flood--unable to see pier foundations & exact channel configuration. Dredge levees on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. No levees on R side.In flood--unable to see pier foundations. Large levees on both U/S & D/S banks. Riprap on both abutments & banks.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see foundations. Dredge levee on U/S RB; raised FP on L side. Blowhole at bridge.In flood--unable to see foundations. Road embankment on U/S LB will not be overtopped.In flood--unable to see foundations. Velocity almost zero.In flood--unable to see foundations. Natural levees U/S.In flood--unable to see foundations. Natural levees U/S & D/S.Levees on both banks/FPs, higher than road--no contraction at bridge. LB/abutment slumped due to minimal vegetation--not scour phenomenon.Levees on both banks/FPs--no contraction at bridge. Blowhole at bridge, especially RB.Levees on both banks/FPs--no contraction at bridge. Minor washout on R setback.Road at same elevation as FPs--no contraction before overtopping. Channel recently dredged.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on upper abutment faces & LB; slumped riprap on R abutment. Blowhole at bridge.Slumped riprap on both banks/abutments. Contraction scour on both banks. Cutbank on U/S LB.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Steep LB under bridge. U/S & D/S channels choked with vegetation.In flood--unable to see foundations. Natural levees U/S & D/S; possible man-made levee D/S RB.In flood--unable to see foundations. Natural levees U/S; Levee & raised road embankment D/S.In flood--unable to see foundations. Rock felt on channel bottom; small riprap on both banks under bridge. Concrete connecting caps visible. Natural levees U/S & D/S.In flood--unable to see foundations. No levees.In flood--unable to see pier foundations. Large dredge levee on U/S RB--will not overtop. Blowhole at bridge & terraced banks make pseudo-setbacks on both sides.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see piers or channel configuration. Pseudo-setbacks on both banks due to blowhole, but incorped into channel dimensions. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Dredge levees on U/S LB; road embankment on U/S RB--both may be overtopped by Qimp, but will direct flow through bridge. Blowhole at bridge.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Immediately U/S of confluence with Little River--subject to backwater.Levees on both banks--will not be overtopped. Pseudo-setbacks included in channel. Concrete debris sparse on both pseudo-setbacks. Channel bends D/S & appears to meander between levees.In flood--unable to see foundations. No levees--dredging ongoing on U/S R & D/S LBs.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No signs of scour.In flood--unable to see foundations. Large discontinuous levees on L side--will not be overtopped by Qimp. Small natural levees on R side.In mild flood--unable to see pier foundations. Mild contraction scour on both setbacksDredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Significant erosion on L abutment; little on RB & abutment.In mild flood--unable to see pier foundations. Levees on both U/S & D/S banks--will not be overtopped. No signs of scour.In flood--unable to see foundations. Bridge slightly skewed to flow (5 deg). Natural levees U/S & D/S.Replaced with new box culvert with riprap along both sides.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Debris around both piersIn flood--unable to see foundations. Dredge levees on U/S LB. Substantial debris on D/S LOB.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see foundations or exact channel configuration. Concreted riprap on R abut & U/S embankment face. Riprap on LB. Dredge levee on U/S LB & natural levee on U/S RFP set back from channel--both will not be overtopped.


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AT10


document.xls

District 10

In flood--unable to see foundations. Inlaid cobbling on R abutment; concreted/asphalted riprap on L abutment & U/S embankment face. High discontinuous levees on both U/S & D/S banks--will not be overtopped by Qimp. Potential problem at U/S face of L abut.In flood--unable to see pier foundations. Poorly defined channel U/S. No levees.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Abutment planks undermined. Cutbank on U/S LB.In flood--unable to see pier foundations & exact channel configuration. Dredge levees on U/S LB--may be overtopped by Qimp, but will direct flow through bridge. No levees on R side.In flood--unable to see pier foundations. Large levees on both U/S & D/S banks. Riprap on both abutments & banks.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see foundations. Dredge levee on U/S RB; raised FP on L side. Blowhole at bridge.In flood--unable to see foundations. Road embankment on U/S LB will not be overtopped.In flood--unable to see foundations. Velocity almost zero.In flood--unable to see foundations. Natural levees U/S.In flood--unable to see foundations. Natural levees U/S & D/S.Levees on both banks/FPs, higher than road--no contraction at bridge. LB/abutment slumped due to minimal vegetation--not scour phenomenon.Levees on both banks/FPs--no contraction at bridge. Blowhole at bridge, especially RB.Levees on both banks/FPs--no contraction at bridge. Minor washout on R setback.Road at same elevation as FPs--no contraction before overtopping. Channel recently dredged.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on upper abutment faces & LB; slumped riprap on R abutment. Blowhole at bridge.Slumped riprap on both banks/abutments. Contraction scour on both banks. Cutbank on U/S LB.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Steep LB under bridge. U/S & D/S channels choked with vegetation.In flood--unable to see foundations. Natural levees U/S & D/S; possible man-made levee D/S RB.In flood--unable to see foundations. Natural levees U/S; Levee & raised road embankment D/S.In flood--unable to see foundations. Rock felt on channel bottom; small riprap on both banks under bridge. Concrete connecting caps visible. Natural levees U/S & D/S.In flood--unable to see foundations. No levees.In flood--unable to see pier foundations. Large dredge levee on U/S RB--will not overtop. Blowhole at bridge & terraced banks make pseudo-setbacks on both sides.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see piers or channel configuration. Pseudo-setbacks on both banks due to blowhole, but incorped into channel dimensions. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Dredge levees on U/S LB; road embankment on U/S RB--both may be overtopped by Qimp, but will direct flow through bridge. Blowhole at bridge.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Immediately U/S of confluence with Little River--subject to backwater.Levees on both banks--will not be overtopped. Pseudo-setbacks included in channel. Concrete debris sparse on both pseudo-setbacks. Channel bends D/S & appears to meander between levees.In flood--unable to see foundations. No levees--dredging ongoing on U/S R & D/S LBs.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No signs of scour.In flood--unable to see foundations. Large discontinuous levees on L side--will not be overtopped by Qimp. Small natural levees on R side.In mild flood--unable to see pier foundations. Mild contraction scour on both setbacksDredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Significant erosion on L abutment; little on RB & abutment.In mild flood--unable to see pier foundations. Levees on both U/S & D/S banks--will not be overtopped. No signs of scour.In flood--unable to see foundations. Bridge slightly skewed to flow (5 deg). Natural levees U/S & D/S.Replaced with new box culvert with riprap along both sides.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Debris around both piersIn flood--unable to see foundations. Dredge levees on U/S LB. Substantial debris on D/S LOB.In flood--unable to see foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see foundations or exact channel configuration. Concreted riprap on R abut & U/S embankment face. Riprap on LB. Dredge levee on U/S LB & natural levee on U/S RFP set back from channel--both will not be overtopped.

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document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]T716 DD NO 4 RT00D NEW MADRID 3 50 -- Qimp 1280 1280 BC 7.7 4.0 L -- -- -- -- 8.5T717 DD NO 45 RT00D NEW MADRID 3 96 -- Qimp 2800 2800 BC 10.8 5.5 L -- -- 3.9 -- --T783 DD NO 52 RT0ZZ NEW MADRID 3 60 -- Qimp 1000 1000 BC 5.9 3.1 L -- -- 3.8 -- 10.9T784 DD NO 53 RT0ZZ NEW MADRID 3 48 -- Qimp 1060 1060 BC 7.0 0.0 L -- -- 3.9 -- --T785 OLD CHAN LITTLE RI RT0ZZ NEW MADRID 3 98 -- Qimp 4580 4580 BC 11.0 11.5 L -- -- 3.9 -- 19.2T786 DD NO 55 RT0ZZ NEW MADRID 3 66 -- Qimp 1570 1570 BC 7.3 3.2 L -- -- 3.9 -- 10.4X37 DD NO 6 MO153 NEW MADRID 3 90 -- Qimp 3250 3250 BC 9.4 2.0 L -- -- 3.9 -- --X412 MAIN DD DIST NO 1 RT00P NEW MADRID 3 53 -- Qimp 1430 1430 BC 7.9 0.0 L -- -- 3.9 -- --A4541 PEMISCOT BAYOU IS055 PEMISCOT 3 163 -- Qimp -- -- -- -- -- -- -- -- -- -- --A4923 MAIN DD NO 9 MO164 PEMISCOT 3 191 -- Qimp -- -- -- -- -- -- -- -- -- -- --A5044 DD NO 5 RT00E PEMISCOT 3 246 -- Qimp -- -- -- -- -- -- -- -- -- -- --G4581 MAIN DD MO164 PEMISCOT 3 125 -- Qimp 6520 6520 BC 14.5 0.0 L -- -- 7.7 -- --H187 DD NO 3 MO164 PEMISCOT 3 65 -- Qimp 3750 3750 BC 12.5 2.2 L -- -- 7.7 -- 13.6K55 MAIN DD US412 PEMISCOT 3 253 -- Qimp 15400 15400 BC 15.9 0.0 L 22.0 27.4 7.7 -- --K866 DD NO 28 RT00A PEMISCOT 3 43 -- Qimp 1580 1580 BC 9.5 3.0 L -- -- -- -- --L4751 PEMISCOT BAYOU IS055 PEMISCOT 3 164 -- Qimp -- -- -- -- -- -- -- -- -- -- --L476 NEW FRANK DD RT00H PEMISCOT 3 144 -- Qimp -- -- -- -- -- -- -- -- -- -- --N68 NEW FRANK DD MO164 PEMISCOT 3 144 -- Qimp -- -- -- -- -- -- -- -- -- -- --P132 PEMISCOT BAYOU RT00O PEMISCOT 3 79 -- Qimp 3480 3480 BC 10.7 2.5 L -- -- 5.8 -- 12.0P473 DD NO 1 RT0EE PEMISCOT 3 241 -- Qimp -- -- -- -- -- -- -- -- -- -- --P474 DD NO 251 RT0EE PEMISCOT 3 263 -- Qimp -- -- -- -- -- -- -- -- -- -- --P475 DD NO 258 RT0EE PEMISCOT 3 185 -- Qimp 3720 3720 BC 6.6 0.9 L -- -- 6.3 3.8 --S706 DD NO 75 RT00C PEMISCOT 3 48 -- Qimp 1060 1060 BC 7.0 0.6 L -- -- -- -- --S707 DD NO 76 RT00C PEMISCOT 3 44 -- Qimp 998 998 BC 7.1 0.0 L -- -- -- -- --S712 DD NO 4 RT00C PEMISCOT 3 50 -- Qimp 980 980 BC 6.5 1.8 L -- -- 3.8 -- --S713 DD NO 3 RT00C PEMISCOT 3 48 -- Qimp 1230 1230 BC 7.7 0.0 L -- -- -- -- --S714 DD NO 2 RT00C PEMISCOT 3 42 -- Qimp 448 448 BC 4.5 1.9 L -- -- -- -- --S715 DD NO 1 RT00C PEMISCOT 3 46 -- Qimp 661 661 BC 5.5 0.0 L -- -- -- -- --S716 DD NO 4 RT00C PEMISCOT 3 44 -- Qimp 403 403 BC 4.1 0.0 L -- -- -- -- --S736 DD NO 5 RT00C PEMISCOT 3 36 -- Qimp 618 618 BC 6.0 2.5 L -- -- -- -- --S737 LAT NO 15 RT00C PEMISCOT 3 38 -- Qimp 943 943 BC 7.5 1.3 L -- -- -- -- --S738 LAT NO 16 RT00C PEMISCOT 3 44 -- Qimp 862 862 BC 6.5 0.0 L -- -- -- -- --T536 DD NO 72 RT00A PEMISCOT 3 48 -- Qimp 1730 1730 BC 9.4 0.0 L -- -- -- -- --T537 DD NO 73 RT00A PEMISCOT 3 48 -- Qimp 1470 1470 BC 8.5 0.0 L -- -- -- -- --T538 DD NO 74 RT00A PEMISCOT 3 48 -- Qimp 941 941 BC 6.5 0.0 L -- -- 3.8 -- 5.4T696 DD NO 70 RT00A PEMISCOT 3 60 -- Qimp 2400 2400 BC 10.0 0.0 L -- -- 3.9 -- --T910 DD NO 84 MO153 PEMISCOT 3 119 -- Qimp 4290 4290 BC 9.4 0.0 L 16.8 12.5 3.9 -- --X34 COUNTY DD RT00M PEMISCOT 3 66 -- Qimp 1810 1810 BC 9.0 0.0 L -- -- 3.9 -- --X500 DD NO 66 RT0CC PEMISCOT 3 79 -- Qimp 2650 2650 BC 9.0 1.7 L -- -- 3.9 -- --X509 DD NO 8 RT00F PEMISCOT 3 47 -- Qimp 1430 1430 BC 9.0 0.0 L -- -- -- -- --X939 DD NO 85 RT HH PEMISCOT 3 59 -- Qimp 1400 1400 BC 7.3 0.0 L -- -- 3.9 -- --A24522A&B SALINE CR IS055 PERRY 2 324 194 Q100 42900 42900 REG 22.7 21.6 L 38.2 32.1 7.8 -- 30.0A2494A&B TYLER BR IS055 PERRY 2 211 8.12 Q100 6130 6130 REG 8.0 -- -- -- -- -- -- --G823 BOIS BRULE CR MO051 PERRY 2 229 28.9 Q100 8960 8960 REG 12.4 12.6 L 9.6 18.4 7.7 -- 16.8H65 INDIAN CR US061 PERRY 2 33 1.47 Q100 1570 1570 REG 10.8 3.3 L -- -- -- -- 31.8


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M6


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E7


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document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]18.1 Y P N N ? Y N -- In flood--unable to see exact channel configuration. Concreted riprap on both abutments. Dredge levee on U/S LB, none on R side.23.9 Y Y N N ? N -- -- In flood--unable to see pier foundations. Levee on U/S LB will contain flow. Levee on RB immediately U/S of bridge may act as a spur dike. WW piles collapsing on U/S LB. Blowhole under bridge. Secondary channel approaches at 40 deg other direction.

-- Y P N N Y N -- -- Blowhole under bridge. Dredge levee on R side.-- Y P N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Old concrete abutment under bridge. Concrete connecting caps exposed. Local scour at bents.-- Y P N P Y M N -- Levee on U/S RB will be overtopped, but will direct flow through bridge. Concrete debris sparesly on both abutment from old abutment remains. Pseudo-setbacks on both sides.

9.2 Y N N N Y M N -- Small natural levees on both banks. Concrete debris on R abutment. Headwalls nearly undermined.-- P Y N N N Y ? -- Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. R abutment fully protected.-- Y N N N N N -- -- Dredge levees on both banks--will not be overtopped by Qimp. Large U/S lateral ditches.-- P P P N ? Y Y -- Very well protected with riprap on abutments & banks U/S & D/S for several bridge lengths. Levees on both banks. In flood--unable to see pier foundations.-- P P N N ? Y Y -- In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks. Circular steel pile bents.-- P P N N ? Y Y -- Very well protected with riprap on abutments & banks U/S & D/S. Piers designed to resist scour. Levees on both banks.-- Y Y N N Y N -- -- Slight cap exposure at abutments. Small blowhole at bridge. Dredge levee on R side, man-made levee on L side.-- Y Y N N Y N -- -- Dredge levee on R side--may be overtopped, but will direct flow through bridge. Both abutment caps undermined.-- P Y N P ? N -- -- In flood--unable to see pier foundations. Levees on both U/S & D/S banks. Qimp taken from saddle in levee on U/S LB. Channel meanders slightly between levees.-- Y Y N P Y Y N -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge; FPs at same elevation as road. Concreted riprap on L abutment face--slumped headwall now undermined. Channel bends slightly under bridge.-- P P P N ? Y Y -- Very well protected with riprap on abutments & banks U/S & D/S for several bridge lengths. Levees on both banks. In flood--unable to see pier foundations.-- -- -- -- -- -- -- -- -- Replaced with A5460-- -- -- -- -- -- -- -- -- Replaced with A5469-- Y Y N Y Y N -- -- Levee on R side. Channel shifted to R compared to U/S channel. Silt/debris dam in U/S channel from tributary ditch drain.-- -- -- -- -- -- -- -- -- In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks.-- -- -- -- -- -- -- -- -- In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks.-- N P N N ? N -- -- In flood--unable to see pier foundations. Man-made levees on both FPs--will not be overtopped.

8.3 Y Y N N Y N -- -- Dredge levee on L side. Natural levee on R side. Blowhole at bridge. Substantial gully erosion on abutment faces.-- Y Y N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Headwalls nearly undermined. Gully erosion at abutments.-- Y P N N Y M N -- Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Concreted riprap on upper abutment faces--undermined. Channel doglegs D/S.-- Y Y N P Y M N -- Dredge levee on U/S RB; LFP at same elevation as road. Miscellaneous riprap on upper abutment faces--slumped. Channel doglegs through bridge.

5.0 Y Y N N N Y N -- Dredge levee on R side. Miscellaneous riprap on upper abutment faces. Contraction/abutment scour high on abutment/pseudo-setback. Shallow channel.-- Y P N P Y Y N -- FPs at same elevation as road. Concreted riprap on upper abutment faces. Channel doglegs through bridge, being approx 50' to R U/S and approx 50' to L D/S-- Y N N N Y N -- -- FPs at same elevation as road. Marginal concreted riprap on both abutment faces. Blowhole under bridge from mild contraction scour.-- Y Y N N Y M N -- Minimal riprap on upper face of R abutment. Concrete connecting caps exposed at end bents.-- Y Y N N Y N -- -- Man-made/dredge levees on both U/S & D/S banks--discontinuous, so may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Steep banks at bridge, headwalls undermined.-- Y Y N N Y N -- -- Dredge levee on U/S RB; LFP at same elevation as road. Blowhole under bridge. Substantial gully erosion at abutments.-- Y P N N Y Y N -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on upper faces of R abutment. Concrete connecting caps exposed on L end bent. Headwalls nearly undermined.-- Y P N N Y Y N -- Levee on LB, raised FP on R side. Concreted riprap on R abutment face.-- Y P N N Y N -- -- Dredge levee on R side--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Concrete debris on U/S LB-- Y Y N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Blowhole under bridge. Concrete connecting caps exposed on L end bent. Headwalls nearly exposed-- P Y N N N N -- -- Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No signs of contraction scour.-- Y Y N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Blowhole at bridge. Substantial gully erosion on abutment faces.-- Y N N P Y M N -- FPs at same elevation as road. Concreted riprap at headwalls--undermined. Concrete connecting caps exposed--some quite large (4' diameter culvert!). Bridge located on bend in channel.-- Y Y N Y Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. L abutment headwall undermined.-- Y Y N N N N -- -- Concreted riprap on both abutment faces; overflow areas on both sides

27.7 Q500 59200 59200 REG 26.2 25.2 L 49.8 42.7 7.9 -- 32.4 30.8 N P N Y Y Y Y -- Riprap on both abutment & U/S embankment faces. Deeply incised channel, migrating w/ unstable banks. Terraced banks on U/S L will direct flow through bridge. Large woody debris trapped in low steel of bridge indicating deep flow.-- Q500 8510 8510 REG 9.7 -- -- -- -- -- -- -- -- N P Y N Y Y N -- Riprap on both abutment faces--probably to limit gully washing. Bedrock channel U/S & at bridge. Narrow FP U/S. Flagged due to observed pier scour & mass wasting on both banks--confirmed, but not deemed to be problems at bridge.

21.5 Q500 12100 12100 REG 13.8 13.8 L 14.6 22.3 7.7 -- 19.3 22.7 N N N N N Y N -- Riprap on abutment faces to prevent gully washing. Designed for MI River backwater.16.3 Q500 2140 2140 REG 13.0 5.4 L -- -- -- -- 37.2 26.1 N Y P Y Y Y N -- Riprap & concrete debris on both U/S banks. Channel shifted to L, causing flow to impinge on L abutment, undercutting riprap & concrete debris.


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document.xls

District 10

Comment codes:

Notes


In flood--unable to see exact channel configuration. Concreted riprap on both abutments. Dredge levee on U/S LB, none on R side.In flood--unable to see pier foundations. Levee on U/S LB will contain flow. Levee on RB immediately U/S of bridge may act as a spur dike. WW piles collapsing on U/S LB. Blowhole under bridge. Secondary channel approaches at 40 deg other direction.Blowhole under bridge. Dredge levee on R side.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Old concrete abutment under bridge. Concrete connecting caps exposed. Local scour at bents.Levee on U/S RB will be overtopped, but will direct flow through bridge. Concrete debris sparesly on both abutment from old abutment remains. Pseudo-setbacks on both sides.Small natural levees on both banks. Concrete debris on R abutment. Headwalls nearly undermined.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. R abutment fully protected.Dredge levees on both banks--will not be overtopped by Qimp. Large U/S lateral ditches.Very well protected with riprap on abutments & banks U/S & D/S for several bridge lengths. Levees on both banks. In flood--unable to see pier foundations.In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks. Circular steel pile bents.Very well protected with riprap on abutments & banks U/S & D/S. Piers designed to resist scour. Levees on both banks.Slight cap exposure at abutments. Small blowhole at bridge. Dredge levee on R side, man-made levee on L side.Dredge levee on R side--may be overtopped, but will direct flow through bridge. Both abutment caps undermined.In flood--unable to see pier foundations. Levees on both U/S & D/S banks. Qimp taken from saddle in levee on U/S LB. Channel meanders slightly between levees.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge; FPs at same elevation as road. Concreted riprap on L abutment face--slumped headwall now undermined. Channel bends slightly under bridge.Very well protected with riprap on abutments & banks U/S & D/S for several bridge lengths. Levees on both banks. In flood--unable to see pier foundations.Replaced with A5460Replaced with A5469Levee on R side. Channel shifted to R compared to U/S channel. Silt/debris dam in U/S channel from tributary ditch drain.In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks.In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks.In flood--unable to see pier foundations. Man-made levees on both FPs--will not be overtopped.Dredge levee on L side. Natural levee on R side. Blowhole at bridge. Substantial gully erosion on abutment faces.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Headwalls nearly undermined. Gully erosion at abutments.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Concreted riprap on upper abutment faces--undermined. Channel doglegs D/S.Dredge levee on U/S RB; LFP at same elevation as road. Miscellaneous riprap on upper abutment faces--slumped. Channel doglegs through bridge.Dredge levee on R side. Miscellaneous riprap on upper abutment faces. Contraction/abutment scour high on abutment/pseudo-setback. Shallow channel.FPs at same elevation as road. Concreted riprap on upper abutment faces. Channel doglegs through bridge, being approx 50' to R U/S and approx 50' to L D/SFPs at same elevation as road. Marginal concreted riprap on both abutment faces. Blowhole under bridge from mild contraction scour.Minimal riprap on upper face of R abutment. Concrete connecting caps exposed at end bents.Man-made/dredge levees on both U/S & D/S banks--discontinuous, so may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Steep banks at bridge, headwalls undermined.Dredge levee on U/S RB; LFP at same elevation as road. Blowhole under bridge. Substantial gully erosion at abutments.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on upper faces of R abutment. Concrete connecting caps exposed on L end bent. Headwalls nearly undermined.Levee on LB, raised FP on R side. Concreted riprap on R abutment face.Dredge levee on R side--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Concrete debris on U/S LBDredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Blowhole under bridge. Concrete connecting caps exposed on L end bent. Headwalls nearly exposedMan-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No signs of contraction scour.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Blowhole at bridge. Substantial gully erosion on abutment faces.FPs at same elevation as road. Concreted riprap at headwalls--undermined. Concrete connecting caps exposed--some quite large (4' diameter culvert!). Bridge located on bend in channel.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. L abutment headwall undermined.Concreted riprap on both abutment faces; overflow areas on both sidesRiprap on both abutment & U/S embankment faces. Deeply incised channel, migrating w/ unstable banks. Terraced banks on U/S L will direct flow through bridge. Large woody debris trapped in low steel of bridge indicating deep flow.Riprap on both abutment faces--probably to limit gully washing. Bedrock channel U/S & at bridge. Narrow FP U/S. Flagged due to observed pier scour & mass wasting on both banks--confirmed, but not deemed to be problems at bridge.Riprap on abutment faces to prevent gully washing. Designed for MI River backwater.Riprap & concrete debris on both U/S banks. Channel shifted to L, causing flow to impinge on L abutment, undercutting riprap & concrete debris.


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AT10


document.xls

District 10

In flood--unable to see exact channel configuration. Concreted riprap on both abutments. Dredge levee on U/S LB, none on R side.In flood--unable to see pier foundations. Levee on U/S LB will contain flow. Levee on RB immediately U/S of bridge may act as a spur dike. WW piles collapsing on U/S LB. Blowhole under bridge. Secondary channel approaches at 40 deg other direction.Blowhole under bridge. Dredge levee on R side.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Old concrete abutment under bridge. Concrete connecting caps exposed. Local scour at bents.Levee on U/S RB will be overtopped, but will direct flow through bridge. Concrete debris sparesly on both abutment from old abutment remains. Pseudo-setbacks on both sides.Small natural levees on both banks. Concrete debris on R abutment. Headwalls nearly undermined.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. R abutment fully protected.Dredge levees on both banks--will not be overtopped by Qimp. Large U/S lateral ditches.Very well protected with riprap on abutments & banks U/S & D/S for several bridge lengths. Levees on both banks. In flood--unable to see pier foundations.In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks. Circular steel pile bents.Very well protected with riprap on abutments & banks U/S & D/S. Piers designed to resist scour. Levees on both banks.Slight cap exposure at abutments. Small blowhole at bridge. Dredge levee on R side, man-made levee on L side.Dredge levee on R side--may be overtopped, but will direct flow through bridge. Both abutment caps undermined.In flood--unable to see pier foundations. Levees on both U/S & D/S banks. Qimp taken from saddle in levee on U/S LB. Channel meanders slightly between levees.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge; FPs at same elevation as road. Concreted riprap on L abutment face--slumped headwall now undermined. Channel bends slightly under bridge.Very well protected with riprap on abutments & banks U/S & D/S for several bridge lengths. Levees on both banks. In flood--unable to see pier foundations.Replaced with A5460Replaced with A5469Levee on R side. Channel shifted to R compared to U/S channel. Silt/debris dam in U/S channel from tributary ditch drain.In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks.In flood--unable to see pier foundations. Well protected with riprap on both banks & abutments. Levees on both U/S & D/S banks.In flood--unable to see pier foundations. Man-made levees on both FPs--will not be overtopped.Dredge levee on L side. Natural levee on R side. Blowhole at bridge. Substantial gully erosion on abutment faces.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Headwalls nearly undermined. Gully erosion at abutments.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Concreted riprap on upper abutment faces--undermined. Channel doglegs D/S.Dredge levee on U/S RB; LFP at same elevation as road. Miscellaneous riprap on upper abutment faces--slumped. Channel doglegs through bridge.Dredge levee on R side. Miscellaneous riprap on upper abutment faces. Contraction/abutment scour high on abutment/pseudo-setback. Shallow channel.FPs at same elevation as road. Concreted riprap on upper abutment faces. Channel doglegs through bridge, being approx 50' to R U/S and approx 50' to L D/SFPs at same elevation as road. Marginal concreted riprap on both abutment faces. Blowhole under bridge from mild contraction scour.Minimal riprap on upper face of R abutment. Concrete connecting caps exposed at end bents.Man-made/dredge levees on both U/S & D/S banks--discontinuous, so may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Steep banks at bridge, headwalls undermined.Dredge levee on U/S RB; LFP at same elevation as road. Blowhole under bridge. Substantial gully erosion at abutments.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on upper faces of R abutment. Concrete connecting caps exposed on L end bent. Headwalls nearly undermined.Levee on LB, raised FP on R side. Concreted riprap on R abutment face.Dredge levee on R side--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed at end bents. Concrete debris on U/S LBDredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Blowhole under bridge. Concrete connecting caps exposed on L end bent. Headwalls nearly exposedMan-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No signs of contraction scour.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Blowhole at bridge. Substantial gully erosion on abutment faces.FPs at same elevation as road. Concreted riprap at headwalls--undermined. Concrete connecting caps exposed--some quite large (4' diameter culvert!). Bridge located on bend in channel.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. L abutment headwall undermined.Concreted riprap on both abutment faces; overflow areas on both sidesRiprap on both abutment & U/S embankment faces. Deeply incised channel, migrating w/ unstable banks. Terraced banks on U/S L will direct flow through bridge. Large woody debris trapped in low steel of bridge indicating deep flow.Riprap on both abutment faces--probably to limit gully washing. Bedrock channel U/S & at bridge. Narrow FP U/S. Flagged due to observed pier scour & mass wasting on both banks--confirmed, but not deemed to be problems at bridge.Riprap on abutment faces to prevent gully washing. Designed for MI River backwater.Riprap & concrete debris on both U/S banks. Channel shifted to L, causing flow to impinge on L abutment, undercutting riprap & concrete debris.

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document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]L10041 HORSE ISLAND CHUTE MO051 PERRY 2 462 -- Q100 -- -- -- -- -- -- -- -- -- -- --N00621 SALINE CR RT0NN PERRY 2 208 100 Q100 20500 20500 REG 20.4 5.4 L 19.0 -- 7.9 4.6 25.4N661 BOIS BRULE CR RT00E PERRY 2 207 65.4 Q100 20800 20800 REG 16.8 -- -- -- -- -- -- --P803 APPLE CR RT00C PERRY 2 208 170 Q100 23800 23800 REG 18.8 7.5 L 27.2 17.8 15.6 -- 23.0S732 LARUEN CR RT00H PERRY 2 66 4.06 Q100 3150 3150 REG 12.1 11.4 L -- -- 5.5 -- 17.7T1014 CREEK RT A PERRY 2 27 0.28 Q100 541 541 REG 6.4 0.0 L -- -- -- -- --X985 FALLS BR RT00M PERRY 2 102 6.16 Q100 3870 3870 REG 11.5 2.9 L 10.3 9.9 3.9 -- 22.2A911A&B RAMSEY CR IS055 SCOTT 2 171 16.1 Q100 6370 6370 REG 12.9 6.8 L 5.5 6.6 7.7 -- 14.4A912A&B RAMSEY CR IS055 SCOTT 2 153 11.0 Q100 5330 5330 REG 10.4 0.1 L 6.0 6.0 3.3 -- 12.8A914A&B RAMSEY CR IS055 SCOTT 2 188 8.65 Q100 5020 5020 REG 11.5 4.7 L 3.2 2.6 7.7 -- 9.4F53 DD NO 4 MO114 SCOTT 3 70 -- Qimp 2040 2040 BC 9.7 4.7 L -- -- 5.1 -- --J3121 RAMSEY CR US061 SCOTT 2 170 23.9 Q100 8240 8240 REG 15.1 14.3 L 5.3 5.8 9.3 -- 27.5J384 DD NO 1 MO077 SCOTT 3 88 -- Qimp 2780 2780 BC 10.2 1.4 L -- -- 7.6 -- --J662 DD NO 19 MO077 SCOTT 2 160 31.5 Q100 6450 6450 REG 9.8 1.0 L 8.8 9.8 9.9 -- 16.1N02571 N CUT DITCH RT O SCOTT 3 186 -- Qimp 5960 5960 BC 10.3 2.1 L 9.9 6.3 3.9 3.9 --N691 RAMSEY CR RT PP SCOTT 2 102 1.92 Q100 1570 1570 REG 7.5 1.8 L -- -- 3.9 -- 6.6P787 LITTLE RI DD NO 1 RT0EE SCOTT 3 46 -- Qimp 1170 1170 BC 7.6 0.9 L -- 6.9 3.9 -- --P99 DD NO 35 RT00W SCOTT 3 53 -- Qimp 1150 1150 BC 6.9 0.5 L -- -- -- -- --R125 RAMSEY CR OR055 SCOTT 2 153 11.0 Q100 5330 5330 REG 10.4 7.3 L 6.0 6.0 3.3 -- 12.8S745 DD NO 1 MO091 SCOTT 3 106 -- Qimp 4660 4660 BC 10.7 1.1 L -- -- 4.7 -- --A1445 TERRE BLEUE CR RT00K ST FRANCOIS 2 227 51.2 Q100 11800 11800 REG 11.3 -- -- -- -- -- -- --A2537 BIG RI & RD US067 ST FRANCOIS 2 516 398 Q100 47100 47100 REG 15.9 -- -- -- -- -- -- --A4109 BIG RI RT00E ST FRANCOIS 2 536 409 Q100 47000 47000 REG 17.5 9.6 L -- 3.8 11.3 10.1 25.1A4414 ST FRANCIS RI RT00B ST FRANCOIS 2 241 64.2 Q100 19700 19700 REG 14.8 9.6 L 7.9 6.5 7.8 -- 20.7A4544 DOE RUN CR RT0AA ST FRANCOIS 2 191 25.5 Q100 9390 9390 REG 13.5 12.8 L 21.1 20.9 3.3 -- 20.0A968 BIG RI RT00K ST FRANCOIS 2 421 319 Q100 42800 42800 REG 16.9 -- -- -- -- -- -- --G843 BIG RI US067 ST FRANCOIS 2 432 264 Q100 39600 39600 REG 15.9 -- -- -- -- -- -- --L643 BIG RI & RD US067 ST FRANCOIS 2 472 398 Q100 47100 47100 REG 16.7 -- -- -- -- -- -- --L645 BIG RI US067 ST FRANCOIS 2 432 264 Q100 39600 39600 REG 15.9 -- -- -- -- -- -- --W175 DRY CR RT00U ST FRANCOIS 2 35 1.42 Q100 1550 1550 REG 10.3 -- -- -- -- -- -- --Y742 FLAT RI RT00B ST FRANCOIS 2 122 18.7 Q100 8530 8530 REG 13.5 -- -- -- -- -- -- --A2268 FOURCHE A DU CLOS CR RT00Y STE GENEVIEVE 2 204 49.3 Q100 21700 17000 BC 16.4 11.9 L 7.7 7.0 4.9 -- 21.9A2269A&B FOURCHE A DU CLOS CR IS055 STE GENEVIEVE 2 285 52.1 Q100 22100 22100 REG 14.4 -- -- -- -- -- -- --A2270A&B ESTABLISHMENT CR & RD IS055 STE GENEVIEVE 2 298 55.3 Q100 19600 19600 REG 13.0 -- -- -- -- -- -- --A2419A&B AUXVASSE CR IS055 STE GENEVIEVE 2 250 86.5 Q100 26600 26600 REG 17.4 -- -- -- -- -- -- --A2459A&B L SALINE CR IS055 STE GENEVIEVE 2 213 14.4 Q100 7570 7570 REG 9.0 -- -- -- -- -- -- --A2746 JANCA CR MO144 STE GENEVIEVE 2 147 5.45 Q100 4650 4650 REG 8.4 -- -- -- -- -- -- --H63 AUXVASSE RI US061 STE GENEVIEVE 2 268 102 Q100 25800 25800 REG 16.4 -- -- -- -- -- -- --H64 SALINE CR US061 STE GENEVIEVE 2 288 224 Q100 43600 43600 REG 21.5 -- -- -- -- -- -- --K748 ISLE DUBOIS CR US061 STE GENEVIEVE 2 163 15.3 Q100 9100 9100 REG 11.8 -- -- -- -- -- -- --P631 SALINE CR RT00N STE GENEVIEVE 2 131 13.0 Q100 11300 9780 BC 14.1 7.2 L 10.6 -- 3.3 -- 21.6P633 AUXVASSE RI RT00M STE GENEVIEVE 2 214 93.8 Q100 27000 27000 REG 19.3 -- -- -- -- -- -- --R535 MILL CR RT00B STE GENEVIEVE 2 102 6.69 Q100 5380 5380 REG 11.4 -- -- -- -- -- -- --S652 MUD BR RT00V STE GENEVIEVE 2 51 4.70 Q100 4020 4020 REG 14.5 -- -- -- -- -- -- --X393 OLD CHAN MISSISSIPPI RI RT00U STE GENEVIEVE 2 180 -- Q100 -- -- -- -- -- -- -- -- -- -- --


10281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325

J6


M6


C7


D7


E7


G7


P10


document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- Q500 -- -- -- -- -- -- -- -- -- -- -- -- P Y N N Y Y ? -- In backwater. Designed as MI River overflow. Flagged due to unknown pier scour--unable to determine further; uncertain of threat.

25.5 Q500 27800 27800 REG 23.3 7.3 L 24.6 -- 7.9 4.7 27.9 28.1 N N P Y N Y ? -- Riprap on both banks & L abutment. Cutbank on U/S RB not protected. Built with 20 deg skew, channel approaches at 30-35 deg. Bluff on U/S R side will funnel flow into bridge.-- Q500 28700 28700 REG 20.4 -- -- -- -- -- -- -- -- P P N N N M N -- In backwater. Overflow section on RFP. Contained by MI River levee on L & RR embankment on R--minimal contraction at bridge before road overtopping.

22.6 Q500 31700 31700 REG 21.8 10.6 L 34.6 23.1 15.7 -- 25.7 25.3 N P N Y Y Y N -- Riprap on both abutments & L U/S embankment face. Mild contraction scour on both setbacks. Apparently subject to backwater from MI River.17.2 Q500 4310 4310 REG 14.6 15.8 L -- -- 5.5 -- 20.8 20.5 P P N Y Y M N -- Marginal riprap on both abutments held in place at base of bent by grader blades and boards. Narrow, deeply incised channel.

-- Q500 739 739 REG 7.7 0.0 L -- -- -- -- -- -- -- -- -- -- -- -- -- -- Could not find21.9 Q500 5280 5280 REG 13.9 4.6 L 16.1 15.9 3.9 -- 28.9 28.8 N P N Y Y M N -- Riprap on both banks & upper abutment faces, RB held in place by grader blades. Steep cutbanks on U/S LB & D/S RB. Concrete connecting cap exposed. Levee on U/S LFP will not be overtopped. Road embankment on U/S RFP.13.7 Q500 8600 8600 REG 15.0 11.6 L 10.8 12.1 7.8 -- 18.4 17.7 N N N Y Y Y N -- Marginal riprap on both abutments. Deep, narrow channel; slumps on U/S LB & at bridge.12.8 Q500 7250 7250 REG 12.3 0.0 L 10.9 10.9 3.3 -- 16.3 16.3 N N N Y Y N -- -- Deep channel; steep slumping banks. D/S of R125--minimal additional contraction. Channel migrating to R, cutting into bents.14.0 Q500 6860 6860 REG 13.3 7.2 L 7.3 6.1 7.7 -- 13.6 17.4 N N N Y N Y Y -- Riprap on R abutment & U/S embankment face. Deep channel with steep slumping banks partially well vegetated. Cutbanks on U/S LB & D/S RB.19.6 P P N N Y Y N -- Concreted riprap on R abutment to stop cutting from flow impinging in RB. Channel parallels road on U/S LFP--road and RR embankments contain channel.24.3 Q500 11100 11100 REG 16.1 16.2 L 9.3 10.0 9.4 -- 29.6 27.5 N N N Y Y N -- -- Massive slumping of banks U/S, D/S & at bridge. Footing exposure at main channel bent.

-- P Y N N N N -- -- Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Mild slumping on RB at bridge. Base of piers underwater--not visible.16.8 Q500 8470 8470 REG 11.5 1.2 L 12.2 13.2 10.0 -- 19.4 19.7 N P N Y Y M N -- D/S of RR embankment & bridge; levees on FPs between bridges--minimal contraction. Channel shifted to L at RR bridge and approached bridge at 10 deg; bridge built with 25 deg skew. Cobbling on abutment faces.

-- Y Y N N N M N -- Riprap at RB toe; overflow areas on both sides6.6 Q500 2120 2120 REG 8.3 3.3 L 2.3 -- 3.9 -- 10.2 10.2 P Y N N N N -- -- Channelized drainage ditch with levee on U/S RB; sloughing bank under bridge

-- P Y N N N N -- -- Man-made/dredge levees on both U/S & D/S banks--will not be overtopped. Mild slumping on R & L banks under bridge. No visible signs of scour.-- Y Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Moderate contraction under bridge (blowhole) on R & L banks.

12.8 Q500 7250 7250 REG 12.3 12.0 L 10.9 10.9 3.3 -- 16.3 16.3 N N N Y Y N -- -- Deep channel; steep slumping banks. U/S of A912A&B. Channel migrating to R D/S, cutting into bents of D/S bridges.-- P Y N N N M N -- Man-made/dredge levees on both U/S & D/S banks--will not be overtopped. Moderate riprap on RB & abutment. Very mild slumping U/S on RB & levee.-- Q500 15900 15900 REG 13.5 -- -- -- -- -- -- -- -- P P Y Y Y M ? -- Along L edge of FP with rock outcrop on L side. Old channel on U/S LFP--redirected with large riprap which now serves as protection for R abutment. Flagged due to unknown pier scour & mass wasting on RB--not deemed a problem due to riprap.-- Q500 63400 63400 REG 19.0 -- -- -- -- -- -- -- -- N P Y N Y Y ? -- D/S of L643. Gravel/cobble channel; sandy gravel overbank. Buried riprap on R abutment of both bridges. Rock outcrop/bluff on L side. Mild local & contraction scour on R setback. Flagged due to unknown pier scour--not a problem at this site.

25.1 Q500 63100 63100 REG 20.2 12.4 L -- 7.2 11.3 10.1 27.5 27.5 N N P P Y Y Y -- Along L edge of FP with rock bluff on L side. Riprap on R abutment & U/S embankment face. Contraction/abutment scour on R setback--footings exposed at all setback bents, & hole at abutment toe. Photos taken.19.9 Q500 27000 27000 REG 17.9 13.9 L 12.1 10.6 7.8 -- 23.4 22.7 N P N N N N -- -- Along R edge of FP. No protection. Old road embankment on U/S LFP--may constrict flow.21.4 Q500 12800 12800 REG 16.2 16.5 L 26.2 26.0 3.3 -- 22.4 23.8 N Y N P Y Y Y -- Riprap on both abutments & U/S embankment faces. Granite outcrop on D/S RFP. 3' deep contraction/abutment scour hole on L setback. Riprap on FPs immediately U/S of bridge.

-- Q500 57800 57800 REG 20.3 -- -- -- -- -- -- -- -- P N P N N Y Y -- Along R edge of FP with rock outcrop/bluff on R side. Riprap on L abutment & U/S embankment face. No signs of scour. Flagged due to riprap condition & mass wasting on banks--not deemed a problem at this site--shallow channel.-- Q500 53600 53600 REG 19.1 -- -- -- -- -- -- -- -- N P Y P Y Y Y -- U/S of L645. Along R edge of FP with rock outcrop on R side. Flagged due to footing exposure on R bent--probably founded on bedrock outcrop. Minor contraction scour on L setback. Riprap on both abutments & U/S L embankment face.-- Q500 63400 63400 REG 20.0 -- -- -- -- -- -- -- -- N P Y N Y Y ? -- U/S of A2537. Gravel/cobble channel; sandy gravel overbank. Buried riprap on R abutment of both bridges. Rock outcrop/bluff on L side. Mild local & contraction scour on R setback. Flagged due to unknown pier scour--not a problem at this site.-- Q500 53600 53600 REG 19.1 -- -- -- -- -- -- -- -- N P Y P Y Y Y -- D/S of G843. Along R edge of FP with rock outcrop on R side. Flagged due to footing exposure on R bent--probably founded on bedrock outcrop. Minor contraction scour on L setback. Riprap on both abutments & U/S L embankment face.-- Q500 2110 2110 REG 12.4 -- -- -- -- -- -- -- -- P P Y N N N -- -- Founded on bedrock shelf observed in U/S & D/S channels. If not socketted to bedrock, scour not primary problem, hydraulic forces are. Flagged due to abutment footing exposure--not confirmed.-- Q500 11700 11700 REG 16.3 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- In process of being replaced.

19.5 Qimp 12300 12300 BC 13.5 12.8 L 4.4 3.8 4.9 -- 19.3 14.2 Y P P Y Y N -- -- Minimal riprap on LB only. Gravel channel. Overflow section on RFP. Built with 20 deg skew, channel approaches at 30-35 deg.-- Q500 30900 30900 REG 17.6 -- -- -- -- -- -- -- -- N P P N Y Y Y -- Concreted riprap on both abutments and U/S embankment faces. Bluff on R side. Channel along R edge of FP. Riprap on LB at bridge. Wide, shallow channel. Flagged due to a cutbank--not deemed to be a problem at this site.-- Q500 27100 27100 REG 15.8 -- -- -- -- -- -- -- -- N N P N Y Y Y -- Riprap on both abutments and U/S embankment faces up to Q500 depth. Piers designed to resist scour. Mild local scour at bents. Flagged due to mass wasting--shallow channel, not deemed to be a problem.-- Q500 36800 36800 REG 21.1 -- -- -- -- -- -- -- -- N P N P Y Y Y Y Well protected with riprap on both banks, abutments & U/S embankment faces; piers designed to resist scour. Levees on LB & FP. Riprap spur on U/S RB which will act as spur dike. Flagged due to observed pier scour & mass wasting--not problems.-- Q500 10400 10400 REG 10.9 -- -- -- -- -- -- -- -- N N P N N Y Y Y Rock outcrop/bluff on R side. Riprap on LB U/S to D/S along farm road, forming a spur dike of sorts. Flagged due to mass wasting--not deemed to be a problem.-- Q500 6460 6460 REG 10.2 -- -- -- -- -- -- -- -- P P Y P Y Y ? -- Concreted riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Large granite outcrop in D/S channel. Channel shifted to R slightly. Flagged due to footing exposure on R bent--confirmed, but probably founded on bedrock.-- Q500 35400 35400 REG 19.8 -- -- -- -- -- -- -- -- N N N Y ? N -- -- In backwater. On edge of MI River FP. Flagged due to observed pier scour & mass wasting on LB--not confirmed due to backwater, but not deemed to be problems based on size of bridge opening.-- Q500 59800 59800 REG 26.0 -- -- -- -- -- -- -- -- N N N Y ? N -- -- In backwater. On edge of MI River FP. Flagged due to observed pier scour, riprap condition, & mass wasting on LB--not confirmed due to backwater, but not deemed to be problems based on size of bridge opening. Old road embankment U/S will funnel flow.-- Q500 12600 12600 REG 14.4 -- -- -- -- -- -- -- -- N N P Y Y Y ? -- Concreted riprap on both abutments & U/S embankment faces. Gravel mining U/S. Gravel channel w/ low banks. Flagged due to mass wasting on both banks--not a problem due to low banks.

20.5 Qimp 8260 8260 BC 12.7 8.5 L 8.7 -- 3.3 -- 20.4 19.3 Y Y P P Y Y N -- Shallow, wide gravel channel. Shifted to R, cutting into R abutment. Marginal riprap on L abutment & U/S embankment face. Gravel mining operation D/S.-- Q500 37300 37300 REG 23.4 -- -- -- -- -- -- -- -- P P N Y Y Y ? -- Concreted riprap on both abutment faces; riprap on U/S embankment faces, RB at bridge, & both banks U/S. Mild contraction scour on both setbacks. Levee on D/S RFP. Flagged due to mass wasting at LB, observed hole & pier scour--not problems-- Q500 7470 7470 REG 13.9 -- -- -- -- -- -- -- -- P P N Y Y Y ? -- Concreted riprap on both abutments and U/S embankment faces. Channel shifted to R, starting to mildy undermine R abutment concrete, but riprap stopping further migration. Flagged due to observed hole, pier scour & mass wasting--not problems.-- Q500 5570 5570 REG 17.7 -- -- -- -- -- -- -- -- Y Y Y Y Y Y ? -- High FP on L & levee on R U/S bank, both covered with riprap--will be overtopped, but will direct flow through bridge. Cobbling on R abutment face. Channel meanders within levee. Overflow structure on RFP (S685).-- Q500 -- -- -- -- -- -- -- -- -- -- -- -- P P N N ? Y Y -- Concrete & riprap on embankments and abutments. Over old MI River channel slough. Additional large overflow bridge to L. Span substantially longer than 180'--more like 500'.


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Z6


AC10


document.xls

District 10

Comment codes:

Notes


In backwater. Designed as MI River overflow. Flagged due to unknown pier scour--unable to determine further; uncertain of threat.Riprap on both banks & L abutment. Cutbank on U/S RB not protected. Built with 20 deg skew, channel approaches at 30-35 deg. Bluff on U/S R side will funnel flow into bridge.In backwater. Overflow section on RFP. Contained by MI River levee on L & RR embankment on R--minimal contraction at bridge before road overtopping.Riprap on both abutments & L U/S embankment face. Mild contraction scour on both setbacks. Apparently subject to backwater from MI River.Marginal riprap on both abutments held in place at base of bent by grader blades and boards. Narrow, deeply incised channel.Could not findRiprap on both banks & upper abutment faces, RB held in place by grader blades. Steep cutbanks on U/S LB & D/S RB. Concrete connecting cap exposed. Levee on U/S LFP will not be overtopped. Road embankment on U/S RFP.Marginal riprap on both abutments. Deep, narrow channel; slumps on U/S LB & at bridge.Deep channel; steep slumping banks. D/S of R125--minimal additional contraction. Channel migrating to R, cutting into bents.Riprap on R abutment & U/S embankment face. Deep channel with steep slumping banks partially well vegetated. Cutbanks on U/S LB & D/S RB.Concreted riprap on R abutment to stop cutting from flow impinging in RB. Channel parallels road on U/S LFP--road and RR embankments contain channel.Massive slumping of banks U/S, D/S & at bridge. Footing exposure at main channel bent.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Mild slumping on RB at bridge. Base of piers underwater--not visible.D/S of RR embankment & bridge; levees on FPs between bridges--minimal contraction. Channel shifted to L at RR bridge and approached bridge at 10 deg; bridge built with 25 deg skew. Cobbling on abutment faces.Riprap at RB toe; overflow areas on both sidesChannelized drainage ditch with levee on U/S RB; sloughing bank under bridgeMan-made/dredge levees on both U/S & D/S banks--will not be overtopped. Mild slumping on R & L banks under bridge. No visible signs of scour.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Moderate contraction under bridge (blowhole) on R & L banks.Deep channel; steep slumping banks. U/S of A912A&B. Channel migrating to R D/S, cutting into bents of D/S bridges.Man-made/dredge levees on both U/S & D/S banks--will not be overtopped. Moderate riprap on RB & abutment. Very mild slumping U/S on RB & levee.Along L edge of FP with rock outcrop on L side. Old channel on U/S LFP--redirected with large riprap which now serves as protection for R abutment. Flagged due to unknown pier scour & mass wasting on RB--not deemed a problem due to riprap.D/S of L643. Gravel/cobble channel; sandy gravel overbank. Buried riprap on R abutment of both bridges. Rock outcrop/bluff on L side. Mild local & contraction scour on R setback. Flagged due to unknown pier scour--not a problem at this site.Along L edge of FP with rock bluff on L side. Riprap on R abutment & U/S embankment face. Contraction/abutment scour on R setback--footings exposed at all setback bents, & hole at abutment toe. Photos taken.Along R edge of FP. No protection. Old road embankment on U/S LFP--may constrict flow.Riprap on both abutments & U/S embankment faces. Granite outcrop on D/S RFP. 3' deep contraction/abutment scour hole on L setback. Riprap on FPs immediately U/S of bridge.Along R edge of FP with rock outcrop/bluff on R side. Riprap on L abutment & U/S embankment face. No signs of scour. Flagged due to riprap condition & mass wasting on banks--not deemed a problem at this site--shallow channel.U/S of L645. Along R edge of FP with rock outcrop on R side. Flagged due to footing exposure on R bent--probably founded on bedrock outcrop. Minor contraction scour on L setback. Riprap on both abutments & U/S L embankment face.U/S of A2537. Gravel/cobble channel; sandy gravel overbank. Buried riprap on R abutment of both bridges. Rock outcrop/bluff on L side. Mild local & contraction scour on R setback. Flagged due to unknown pier scour--not a problem at this site.D/S of G843. Along R edge of FP with rock outcrop on R side. Flagged due to footing exposure on R bent--probably founded on bedrock outcrop. Minor contraction scour on L setback. Riprap on both abutments & U/S L embankment face.Founded on bedrock shelf observed in U/S & D/S channels. If not socketted to bedrock, scour not primary problem, hydraulic forces are. Flagged due to abutment footing exposure--not confirmed.In process of being replaced.Minimal riprap on LB only. Gravel channel. Overflow section on RFP. Built with 20 deg skew, channel approaches at 30-35 deg.Concreted riprap on both abutments and U/S embankment faces. Bluff on R side. Channel along R edge of FP. Riprap on LB at bridge. Wide, shallow channel. Flagged due to a cutbank--not deemed to be a problem at this site.Riprap on both abutments and U/S embankment faces up to Q500 depth. Piers designed to resist scour. Mild local scour at bents. Flagged due to mass wasting--shallow channel, not deemed to be a problem.Well protected with riprap on both banks, abutments & U/S embankment faces; piers designed to resist scour. Levees on LB & FP. Riprap spur on U/S RB which will act as spur dike. Flagged due to observed pier scour & mass wasting--not problems.Rock outcrop/bluff on R side. Riprap on LB U/S to D/S along farm road, forming a spur dike of sorts. Flagged due to mass wasting--not deemed to be a problem.Concreted riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Large granite outcrop in D/S channel. Channel shifted to R slightly. Flagged due to footing exposure on R bent--confirmed, but probably founded on bedrock.In backwater. On edge of MI River FP. Flagged due to observed pier scour & mass wasting on LB--not confirmed due to backwater, but not deemed to be problems based on size of bridge opening.In backwater. On edge of MI River FP. Flagged due to observed pier scour, riprap condition, & mass wasting on LB--not confirmed due to backwater, but not deemed to be problems based on size of bridge opening. Old road embankment U/S will funnel flow.Concreted riprap on both abutments & U/S embankment faces. Gravel mining U/S. Gravel channel w/ low banks. Flagged due to mass wasting on both banks--not a problem due to low banks.Shallow, wide gravel channel. Shifted to R, cutting into R abutment. Marginal riprap on L abutment & U/S embankment face. Gravel mining operation D/S.Concreted riprap on both abutment faces; riprap on U/S embankment faces, RB at bridge, & both banks U/S. Mild contraction scour on both setbacks. Levee on D/S RFP. Flagged due to mass wasting at LB, observed hole & pier scour--not problemsConcreted riprap on both abutments and U/S embankment faces. Channel shifted to R, starting to mildy undermine R abutment concrete, but riprap stopping further migration. Flagged due to observed hole, pier scour & mass wasting--not problems.High FP on L & levee on R U/S bank, both covered with riprap--will be overtopped, but will direct flow through bridge. Cobbling on R abutment face. Channel meanders within levee. Overflow structure on RFP (S685).Concrete & riprap on embankments and abutments. Over old MI River channel slough. Additional large overflow bridge to L. Span substantially longer than 180'--more like 500'.


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AT10


document.xls

District 10

In backwater. Designed as MI River overflow. Flagged due to unknown pier scour--unable to determine further; uncertain of threat.Riprap on both banks & L abutment. Cutbank on U/S RB not protected. Built with 20 deg skew, channel approaches at 30-35 deg. Bluff on U/S R side will funnel flow into bridge.In backwater. Overflow section on RFP. Contained by MI River levee on L & RR embankment on R--minimal contraction at bridge before road overtopping.Riprap on both abutments & L U/S embankment face. Mild contraction scour on both setbacks. Apparently subject to backwater from MI River.Marginal riprap on both abutments held in place at base of bent by grader blades and boards. Narrow, deeply incised channel.Could not findRiprap on both banks & upper abutment faces, RB held in place by grader blades. Steep cutbanks on U/S LB & D/S RB. Concrete connecting cap exposed. Levee on U/S LFP will not be overtopped. Road embankment on U/S RFP.Marginal riprap on both abutments. Deep, narrow channel; slumps on U/S LB & at bridge.Deep channel; steep slumping banks. D/S of R125--minimal additional contraction. Channel migrating to R, cutting into bents.Riprap on R abutment & U/S embankment face. Deep channel with steep slumping banks partially well vegetated. Cutbanks on U/S LB & D/S RB.Concreted riprap on R abutment to stop cutting from flow impinging in RB. Channel parallels road on U/S LFP--road and RR embankments contain channel.Massive slumping of banks U/S, D/S & at bridge. Footing exposure at main channel bent.Man-made/dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Mild slumping on RB at bridge. Base of piers underwater--not visible.D/S of RR embankment & bridge; levees on FPs between bridges--minimal contraction. Channel shifted to L at RR bridge and approached bridge at 10 deg; bridge built with 25 deg skew. Cobbling on abutment faces.Riprap at RB toe; overflow areas on both sidesChannelized drainage ditch with levee on U/S RB; sloughing bank under bridgeMan-made/dredge levees on both U/S & D/S banks--will not be overtopped. Mild slumping on R & L banks under bridge. No visible signs of scour.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Moderate contraction under bridge (blowhole) on R & L banks.Deep channel; steep slumping banks. U/S of A912A&B. Channel migrating to R D/S, cutting into bents of D/S bridges.Man-made/dredge levees on both U/S & D/S banks--will not be overtopped. Moderate riprap on RB & abutment. Very mild slumping U/S on RB & levee.Along L edge of FP with rock outcrop on L side. Old channel on U/S LFP--redirected with large riprap which now serves as protection for R abutment. Flagged due to unknown pier scour & mass wasting on RB--not deemed a problem due to riprap.D/S of L643. Gravel/cobble channel; sandy gravel overbank. Buried riprap on R abutment of both bridges. Rock outcrop/bluff on L side. Mild local & contraction scour on R setback. Flagged due to unknown pier scour--not a problem at this site.Along L edge of FP with rock bluff on L side. Riprap on R abutment & U/S embankment face. Contraction/abutment scour on R setback--footings exposed at all setback bents, & hole at abutment toe. Photos taken.Along R edge of FP. No protection. Old road embankment on U/S LFP--may constrict flow.Riprap on both abutments & U/S embankment faces. Granite outcrop on D/S RFP. 3' deep contraction/abutment scour hole on L setback. Riprap on FPs immediately U/S of bridge.Along R edge of FP with rock outcrop/bluff on R side. Riprap on L abutment & U/S embankment face. No signs of scour. Flagged due to riprap condition & mass wasting on banks--not deemed a problem at this site--shallow channel.U/S of L645. Along R edge of FP with rock outcrop on R side. Flagged due to footing exposure on R bent--probably founded on bedrock outcrop. Minor contraction scour on L setback. Riprap on both abutments & U/S L embankment face.U/S of A2537. Gravel/cobble channel; sandy gravel overbank. Buried riprap on R abutment of both bridges. Rock outcrop/bluff on L side. Mild local & contraction scour on R setback. Flagged due to unknown pier scour--not a problem at this site.D/S of G843. Along R edge of FP with rock outcrop on R side. Flagged due to footing exposure on R bent--probably founded on bedrock outcrop. Minor contraction scour on L setback. Riprap on both abutments & U/S L embankment face.Founded on bedrock shelf observed in U/S & D/S channels. If not socketted to bedrock, scour not primary problem, hydraulic forces are. Flagged due to abutment footing exposure--not confirmed.In process of being replaced.Minimal riprap on LB only. Gravel channel. Overflow section on RFP. Built with 20 deg skew, channel approaches at 30-35 deg.Concreted riprap on both abutments and U/S embankment faces. Bluff on R side. Channel along R edge of FP. Riprap on LB at bridge. Wide, shallow channel. Flagged due to a cutbank--not deemed to be a problem at this site.Riprap on both abutments and U/S embankment faces up to Q500 depth. Piers designed to resist scour. Mild local scour at bents. Flagged due to mass wasting--shallow channel, not deemed to be a problem.Well protected with riprap on both banks, abutments & U/S embankment faces; piers designed to resist scour. Levees on LB & FP. Riprap spur on U/S RB which will act as spur dike. Flagged due to observed pier scour & mass wasting--not problems.Rock outcrop/bluff on R side. Riprap on LB U/S to D/S along farm road, forming a spur dike of sorts. Flagged due to mass wasting--not deemed to be a problem.Concreted riprap on both abutments & U/S embankment faces. Piers designed to resist scour. Large granite outcrop in D/S channel. Channel shifted to R slightly. Flagged due to footing exposure on R bent--confirmed, but probably founded on bedrock.In backwater. On edge of MI River FP. Flagged due to observed pier scour & mass wasting on LB--not confirmed due to backwater, but not deemed to be problems based on size of bridge opening.In backwater. On edge of MI River FP. Flagged due to observed pier scour, riprap condition, & mass wasting on LB--not confirmed due to backwater, but not deemed to be problems based on size of bridge opening. Old road embankment U/S will funnel flow.Concreted riprap on both abutments & U/S embankment faces. Gravel mining U/S. Gravel channel w/ low banks. Flagged due to mass wasting on both banks--not a problem due to low banks.Shallow, wide gravel channel. Shifted to R, cutting into R abutment. Marginal riprap on L abutment & U/S embankment face. Gravel mining operation D/S.Concreted riprap on both abutment faces; riprap on U/S embankment faces, RB at bridge, & both banks U/S. Mild contraction scour on both setbacks. Levee on D/S RFP. Flagged due to mass wasting at LB, observed hole & pier scour--not problemsConcreted riprap on both abutments and U/S embankment faces. Channel shifted to R, starting to mildy undermine R abutment concrete, but riprap stopping further migration. Flagged due to observed hole, pier scour & mass wasting--not problems.High FP on L & levee on R U/S bank, both covered with riprap--will be overtopped, but will direct flow through bridge. Cobbling on R abutment face. Channel meanders within levee. Overflow structure on RFP (S685).Concrete & riprap on embankments and abutments. Over old MI River channel slough. Additional large overflow bridge to L. Span substantially longer than 180'--more like 500'.

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document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]X67 AUXVASSE RI RT00B STE GENEVIEVE 2 231 64.3 Q100 23300 23300 REG 16.8 -- -- -- -- -- -- --A2214 DD NO 24 MO091 STODDARD 3 119 -- Qimp 6760 6760 BC 13.5 0.4 L 1.9 5.0 5.2 -- --A2963 DD NO 1 RT00Z STODDARD 3 264 -- Qimp 16100 16100 BC 12.9 2.6 L 1.6 -- 6.4 3.9 --A3792 MINGO DITCH US060 STODDARD 3 203 -- Qimp -- -- -- -- -- -- -- -- -- -- --A5306 CYPRESS LAT & RD NORTH OUERSTODDARD 3 136 -- Qimp 8650 8650 BC 13.4 0.0 L 17.1 18.2 7.7 -- --F1128 DD DIST MO114 STODDARD 3 45 -- Qimp 1370 1370 BC 8.5 2.0 L -- -- -- -- --F564 LITTLE RI DD NO 4 MO114 STODDARD 3 48 -- Qimp 1910 1910 BC 10.2 0.0 L -- -- -- -- --F565 LITTLE RI DD MO114 STODDARD 3 247 -- Qimp -- -- -- -- -- -- -- -- -- -- --G502 MINGO DD 1 MO051 STODDARD 3 177 -- Qimp 15100 15100 BC 16.0 0.0 L -- -- 12.8 7.7 --G892 MAIN DD DIST MO114 STODDARD 3 53 -- Qimp 1660 1660 BC 8.7 1.5 L -- -- -- -- --H142 DD NO 5 MO051 STODDARD 3 66 -- Qimp 3080 3080 BC 11.4 0.0 L 16.7 16.7 8.8 -- --H327 DRAINAGE DITCH MO114 STODDARD 3 35 -- Qimp 1110 1110 BC 8.8 2.1 L -- -- -- -- --K801 MAIN DD DIST RT00D STODDARD 3 83 -- Qimp 4920 4920 BC 12.7 0.0 L -- -- 3.9 -- --K802 DD NO 7 RT00D STODDARD 3 65 -- Qimp 1760 1760 BC 7.9 0.0 L 3.8 3.6 3.9 -- 16.9K895 HUFFSTETTER LAT RT00D STODDARD 3 71 -- Qimp 2520 2520 BC 9.3 5.7 L -- -- 3.9 -- 17.1L07761 CYPRESS LAT US060 STODDARD 3 100 -- Qimp -- -- -- -- -- -- -- -- -- -- --L07831 DRAINAGE DITCH US 60 STODDARD 3 132 -- Qimp 12400 12400 BC 18.3 0.0 L 19.6 20.4 6.5 -- --L08201 PRAIRIE CR DD US060 STODDARD 3 100 -- Qimp -- -- -- -- -- -- -- -- -- -- --L19 DD DIST NO 17 MO025 STODDARD 2 77 8.44 Q100 3550 3550 REG 10.5 -- -- -- -- -- -- --L21 WOLF CR MO025 STODDARD 2 77 4.62 Q100 3460 3460 REG 10.4 8.0 L 11.8 10.0 5.2 -- 16.7L39 MAIN DD NO 17 MO025 STODDARD 2 77 8.52 Q100 3570 3570 REG 10.6 -- -- -- -- -- -- --L599 MAIN DD RT00Z STODDARD 3 105 -- Qimp 2720 2720 BC 7.7 4.0 L -- -- 3.9 -- 14.4L601 LAT DD NO 1 RT00Z STODDARD 3 53 -- Qimp 715 715 BC 5.2 2.0 L -- -- 4.8 -- 9.5L602 BESS SL DD RT00Z STODDARD 3 83 -- Qimp 629 629 BC 4.3 0.7 L -- -- 4.8 -- --L727 MAIN DD DIST RT00A STODDARD 3 57 -- Qimp 1880 1880 BC 8.9 0.4 L -- -- 3.9 -- --L728 DD NO 42 RT00A STODDARD 3 53 -- Qimp 1680 1680 BC 8.7 0.0 L -- -- 3.9 -- --L729 DD NO 41 RT00A STODDARD 3 53 -- Qimp 1590 1590 BC 8.4 0.7 L -- -- 3.9 -- 8.8L730 DD NO 40 RT00A STODDARD 3 59 -- Qimp 2020 2020 BC 9.1 2.3 L -- -- 3.9 -- 17.6L731 DD NO 1 RT00A STODDARD 3 241 -- Qimp 12800 12800 BC 11.9 1.6 L -- -- 7.6 -- --L732 DD NO 37 RT00A STODDARD 3 65 -- Qimp 2220 2220 BC 9.1 1.5 L -- -- 3.2 -- --L738 TURKEY CR RT00T STODDARD 2 83 8.79 Q100 1850 1630 BC 7.4 2.1 L 6.7 4.6 9.5 -- 6.7L917 LAT DD NO 1 US060 STODDARD 3 115 -- Qimp 2510 2510 BC 7.0 1.3 L -- 12.4 5.1 -- --L920 MAIN DD DIST US060 STODDARD 3 93 -- Qimp 2030 2030 BC 7.0 2.6 L 5.6 5.6 5.1 -- --L922 MAIN DD DIST US060 STODDARD 3 115 -- Qimp 2940 2940 BC 7.7 1.9 L 7.0 7.0 5.1 -- --L927 WAHITE DD US060 STODDARD 3 280 -- Qimp -- -- -- -- -- -- -- -- -- -- --N285 MAIN DD DIST RT00Z STODDARD 3 73 -- Qimp 4100 4100 BC 12.4 2.3 L -- -- 6.2 -- 18.9N286 LITTLE RI DD RT00Z STODDARD 3 85 -- Qimp 2460 2460 BC 8.3 0.0 L -- -- 5.1 -- --N287 LITTLE RI DD NO 4 RT00Z STODDARD 3 66 -- Qimp 1450 1450 BC 7.1 1.4 L -- -- 5.1 -- 8.7N380 DD NO 24 RT0AB STODDARD 3 211 -- Qimp -- -- -- -- -- -- -- -- -- -- --N381 DD NO 30 RT00N STODDARD 3 133 -- Qimp 3820 3820 BC 10.1 1.7 L 4.9 -- 5.1 -- --N382 CASTOR RI RT00N STODDARD 3 172 -- Qimp -- -- -- -- -- -- -- -- -- -- --N404 LITTLE RI DD NO 11 RT0BB STODDARD 2 59 2.25 Q100 1140 1140 REG 6.2 -- -- -- -- -- -- --N405 MAIN DD DIST 1 RT0BB STODDARD 2 105 20.3 Q100 2720 2720 REG 7.4 -- -- -- -- -- -- --N578 DD NO 15 RT0AE STODDARD 3 125 -- Qimp -- -- -- -- -- -- -- -- -- -- --N579 DD NO 14 RT0AE STODDARD 3 65 -- Qimp 1830 1830 BC 8.1 2.3 L 7.7 10.9 5.1 -- --


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document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- Q500 32400 32400 REG 20.5 -- -- -- -- -- -- -- -- P P Y P Y N -- -- Rock outcrop on R side. Old road embankment on U/S L side; both direct flow through bridge w/ minimal contraction. Mild contraction scour on setbacks. Flagged due to mass wasting on both banks--shallow channel, not deemed to be a problem.-- Y N N N N M N -- Riprap on both banks/abutments to stop gully washing. Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.-- N P N Y ? Y ? -- In flood--unable to see pier foundations. Levees on both U/S & D/S banks--will not be overtopped. Cobble-sized riprap on both banks & R abutment.-- P P N P Y M N -- Now D/S of new bridge on WB US60. Very steep banks are main problem--bent on bank. U/S bridge protected. Level 1+ will not indicate problems-- N Y N N N N -- -- Leveed drainage ditch; substantial riprap at D/S LB; no riprap at abutment faces; Two D/S bridges on US 60-- P P N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.-- Y P N P Y M N -- Some concreted riprap under cap of R abutment to stop undermining--also undermined. Sparse riprap on L abutment. Immediately D/S of RR embankment--flow will not expand appreciably. Major problem is downcutting.-- P P N N ? Y ? -- Well protected with riprap on both banks/abutments. Levees on both U/S & D/S banks--no contraction. Immediately D/S of RR bridge.-- P P N N Y N -- -- Levees on both U/s & D/S banks--no contraction. Minor local scour at piers; gully erosion on abutments/banks. More substantial problem at RR embankment bridge just D/S. Principal problem from down-cutting.-- Y P N P Y N -- -- Levees on both U/s & D/S banks--no contraction. Abutment caps undermined. Immediately D/S of RR embankment.

22.4 Y Y N Y Y N -- -- Levees on both U/S banks--may be overtopped, but will direct flow through bridge with minimal contraction. Mild local scour at L bent.-- Y P N Y Y N -- -- Concreted riprap extension on U/S L WW. Immediately D/S of RR embankment--channel slightly wider U/S; little additional contraction. Major problem from downcutting & angled flow--bridge built w/o skew. L U/S abutment footing exposed.-- P Y N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Cutbank on U/S LB on road drain.-- P Y N P N N -- -- In flood--unable to see pier foundations. Levee on U/S RB bank--may be overtopped by Qimp, but will direct flow through bridge. Gully erosion on abutments.

16.6 P Y N P ? N -- -- In flood--unable to see foundations or exact channel configuration.-- P P N N Y M N -- D/S of bridges on WB US60 (A5272) & N outer road (A5906). Had contraction scour on setback/banks, but will be mitigated by new U/S bridges.

21.0 N P N N N M ? -- Marginal riprap on L abutment face; U/S bridge (newer, 1990's vintage) on US 60 will act as guidebank-- P P N N Y N -- -- Between culverts on WB US60 & S outer road. No contraction, no scour potential. Mild cutbank on D/S RB.-- Q500 4740 4740 REG 12.5 -- -- -- -- -- -- -- -- P P N P N Y ? -- Very small channel. Levees on both U/S banks ~ 2 bridge lengths U/S. Channel bends to R D/S. Concreted riprap on LB/abutment due to bend. Flagged due to pier scour--confirmed, but not a problem.

15.6 Q500 4740 4740 REG 12.5 11.5 L 16.2 15.2 5.2 -- 20.0 19.5 N Y N N Y M N -- Concreted riprap on RB/abutment. Minor lateral shifting to R of U/S channel.-- Q500 4780 4780 REG 12.6 -- -- -- -- -- -- -- -- N N N N Y M N -- Large levee U/S, only flow comes from lateral drainage. Concreted riprap on L abutment. Mild contraction scour on "setbacks". Very small channel.

13.8 P Y N P ? N -- -- In flood--unable to see pier foundations. Natural levees. Current water surface 3.6' below low steel4.2 P Y N P N N -- -- In flood--unable to see pier foundations. Natural levees. Low velocities currently.

-- P Y N P ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- P Y N N N M N -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on R abutment.-- P Y N N N M N -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on both abutments.-- P Y N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- P Y N N ? N -- -- In flood--unable to see pier foundations. Levee on U/S RB bank--may be overtopped by Qimp, but will direct flow through bridge. RB is lightly riprapped.-- N N Y N ? Y ? -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on both abutments & banks.-- P Y N N ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.

21.0 Qimp 1410 1410 BC 6.8 2.7 L 5.6 3.6 9.5 -- 2.8 19.3 Y P N Y N N -- -- Channel doglegs through bridge. Built w/o skew, channel approaches at 40 deg.-- P P N N Y M N -- Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.-- P P N N Y M N -- Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.-- P P N N Y M N -- Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.-- P P N N N Y ? -- U/S of new bridge--new riprap on banks/abutments. Levees on both U/S & D/S banks. No contraction.

12.0 Y Y N P ? N -- -- In flood--unable to see foundations. Natural levees on both U/S banks--will be overtopped by Qimp, but will direct flow through bridge. Current water surface 2.0' below low steel-- P Y N P ? N -- -- In flood--unable to see pier foundations. Levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.-- P Y N P ? N -- -- In flood--unable to see foundations. Levee on U/S RB--will be overtopped by Qimp, but will direct flow through bridge. Current water surface 1.2' below low steel-- P P N N N Y ? -- Well protected with riprap on both abutments/banks for several bridge lengths U/S & D/S.-- P P N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Steep banks.-- P P N N N Y ? -- Well protected with riprap on both abutments/banks for several bridge lengths U/S & D/S.-- Q500 1500 1500 REG 7.4 -- -- -- -- -- -- -- -- P P N N N M ? -- Very shallow channel. Riprap on RB to stop gully washing. Flagged due to pier scour & observed hole--confirmed, but very minor & not deemed to be problems at this site.-- Q500 3430 3430 REG 8.6 -- -- -- -- -- -- -- -- P P N N N N -- -- Essentially a bootheel bridge. Levees on both banks--no contraction at bridge. Stable banks covered with vegetation.-- -- -- -- -- -- -- -- -- Very well protected on both banks & abutments. Large blowhole D/S due to high-gradient flow through bridge.

14.6 P Y N N N N -- -- Dredge levees on R side--may be overtopped, but will direct flow through bridge. Deeply incised. No signs of scour, ie cutbanks, mass wasting, etc.


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W6


Z6


AC10


document.xls

District 10

Comment codes:

Notes


Rock outcrop on R side. Old road embankment on U/S L side; both direct flow through bridge w/ minimal contraction. Mild contraction scour on setbacks. Flagged due to mass wasting on both banks--shallow channel, not deemed to be a problem.Riprap on both banks/abutments to stop gully washing. Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.In flood--unable to see pier foundations. Levees on both U/S & D/S banks--will not be overtopped. Cobble-sized riprap on both banks & R abutment.Now D/S of new bridge on WB US60. Very steep banks are main problem--bent on bank. U/S bridge protected. Level 1+ will not indicate problemsLeveed drainage ditch; substantial riprap at D/S LB; no riprap at abutment faces; Two D/S bridges on US 60Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.Some concreted riprap under cap of R abutment to stop undermining--also undermined. Sparse riprap on L abutment. Immediately D/S of RR embankment--flow will not expand appreciably. Major problem is downcutting.Well protected with riprap on both banks/abutments. Levees on both U/S & D/S banks--no contraction. Immediately D/S of RR bridge.Levees on both U/s & D/S banks--no contraction. Minor local scour at piers; gully erosion on abutments/banks. More substantial problem at RR embankment bridge just D/S. Principal problem from down-cutting.Levees on both U/s & D/S banks--no contraction. Abutment caps undermined. Immediately D/S of RR embankment.Levees on both U/S banks--may be overtopped, but will direct flow through bridge with minimal contraction. Mild local scour at L bent.Concreted riprap extension on U/S L WW. Immediately D/S of RR embankment--channel slightly wider U/S; little additional contraction. Major problem from downcutting & angled flow--bridge built w/o skew. L U/S abutment footing exposed.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Cutbank on U/S LB on road drain.In flood--unable to see pier foundations. Levee on U/S RB bank--may be overtopped by Qimp, but will direct flow through bridge. Gully erosion on abutments.In flood--unable to see foundations or exact channel configuration.D/S of bridges on WB US60 (A5272) & N outer road (A5906). Had contraction scour on setback/banks, but will be mitigated by new U/S bridges.Marginal riprap on L abutment face; U/S bridge (newer, 1990's vintage) on US 60 will act as guidebankBetween culverts on WB US60 & S outer road. No contraction, no scour potential. Mild cutbank on D/S RB.Very small channel. Levees on both U/S banks ~ 2 bridge lengths U/S. Channel bends to R D/S. Concreted riprap on LB/abutment due to bend. Flagged due to pier scour--confirmed, but not a problem.Concreted riprap on RB/abutment. Minor lateral shifting to R of U/S channel.Large levee U/S, only flow comes from lateral drainage. Concreted riprap on L abutment. Mild contraction scour on "setbacks". Very small channel.In flood--unable to see pier foundations. Natural levees. Current water surface 3.6' below low steelIn flood--unable to see pier foundations. Natural levees. Low velocities currently.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on R abutment.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on both abutments.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Levee on U/S RB bank--may be overtopped by Qimp, but will direct flow through bridge. RB is lightly riprapped.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on both abutments & banks.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.Channel doglegs through bridge. Built w/o skew, channel approaches at 40 deg.Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.U/S of new bridge--new riprap on banks/abutments. Levees on both U/S & D/S banks. No contraction.In flood--unable to see foundations. Natural levees on both U/S banks--will be overtopped by Qimp, but will direct flow through bridge. Current water surface 2.0' below low steelIn flood--unable to see pier foundations. Levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see foundations. Levee on U/S RB--will be overtopped by Qimp, but will direct flow through bridge. Current water surface 1.2' below low steelWell protected with riprap on both abutments/banks for several bridge lengths U/S & D/S.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Steep banks.Well protected with riprap on both abutments/banks for several bridge lengths U/S & D/S.Very shallow channel. Riprap on RB to stop gully washing. Flagged due to pier scour & observed hole--confirmed, but very minor & not deemed to be problems at this site.Essentially a bootheel bridge. Levees on both banks--no contraction at bridge. Stable banks covered with vegetation.Very well protected on both banks & abutments. Large blowhole D/S due to high-gradient flow through bridge.Dredge levees on R side--may be overtopped, but will direct flow through bridge. Deeply incised. No signs of scour, ie cutbanks, mass wasting, etc.


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AT10


document.xls

District 10

Rock outcrop on R side. Old road embankment on U/S L side; both direct flow through bridge w/ minimal contraction. Mild contraction scour on setbacks. Flagged due to mass wasting on both banks--shallow channel, not deemed to be a problem.Riprap on both banks/abutments to stop gully washing. Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.In flood--unable to see pier foundations. Levees on both U/S & D/S banks--will not be overtopped. Cobble-sized riprap on both banks & R abutment.Now D/S of new bridge on WB US60. Very steep banks are main problem--bent on bank. U/S bridge protected. Level 1+ will not indicate problemsLeveed drainage ditch; substantial riprap at D/S LB; no riprap at abutment faces; Two D/S bridges on US 60Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.Some concreted riprap under cap of R abutment to stop undermining--also undermined. Sparse riprap on L abutment. Immediately D/S of RR embankment--flow will not expand appreciably. Major problem is downcutting.Well protected with riprap on both banks/abutments. Levees on both U/S & D/S banks--no contraction. Immediately D/S of RR bridge.Levees on both U/s & D/S banks--no contraction. Minor local scour at piers; gully erosion on abutments/banks. More substantial problem at RR embankment bridge just D/S. Principal problem from down-cutting.Levees on both U/s & D/S banks--no contraction. Abutment caps undermined. Immediately D/S of RR embankment.Levees on both U/S banks--may be overtopped, but will direct flow through bridge with minimal contraction. Mild local scour at L bent.Concreted riprap extension on U/S L WW. Immediately D/S of RR embankment--channel slightly wider U/S; little additional contraction. Major problem from downcutting & angled flow--bridge built w/o skew. L U/S abutment footing exposed.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Cutbank on U/S LB on road drain.In flood--unable to see pier foundations. Levee on U/S RB bank--may be overtopped by Qimp, but will direct flow through bridge. Gully erosion on abutments.In flood--unable to see foundations or exact channel configuration.D/S of bridges on WB US60 (A5272) & N outer road (A5906). Had contraction scour on setback/banks, but will be mitigated by new U/S bridges.Marginal riprap on L abutment face; U/S bridge (newer, 1990's vintage) on US 60 will act as guidebankBetween culverts on WB US60 & S outer road. No contraction, no scour potential. Mild cutbank on D/S RB.Very small channel. Levees on both U/S banks ~ 2 bridge lengths U/S. Channel bends to R D/S. Concreted riprap on LB/abutment due to bend. Flagged due to pier scour--confirmed, but not a problem.Concreted riprap on RB/abutment. Minor lateral shifting to R of U/S channel.Large levee U/S, only flow comes from lateral drainage. Concreted riprap on L abutment. Mild contraction scour on "setbacks". Very small channel.In flood--unable to see pier foundations. Natural levees. Current water surface 3.6' below low steelIn flood--unable to see pier foundations. Natural levees. Low velocities currently.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on R abutment.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on both abutments.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Levee on U/S RB bank--may be overtopped by Qimp, but will direct flow through bridge. RB is lightly riprapped.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Moderate riprap on both abutments & banks.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.Channel doglegs through bridge. Built w/o skew, channel approaches at 40 deg.Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.Immediately U/S of box culvert on soon-to-be EB US60. Levees on both banks at same elevation as road.U/S of new bridge--new riprap on banks/abutments. Levees on both U/S & D/S banks. No contraction.In flood--unable to see foundations. Natural levees on both U/S banks--will be overtopped by Qimp, but will direct flow through bridge. Current water surface 2.0' below low steelIn flood--unable to see pier foundations. Levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see foundations. Levee on U/S RB--will be overtopped by Qimp, but will direct flow through bridge. Current water surface 1.2' below low steelWell protected with riprap on both abutments/banks for several bridge lengths U/S & D/S.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Steep banks.Well protected with riprap on both abutments/banks for several bridge lengths U/S & D/S.Very shallow channel. Riprap on RB to stop gully washing. Flagged due to pier scour & observed hole--confirmed, but very minor & not deemed to be problems at this site.Essentially a bootheel bridge. Levees on both banks--no contraction at bridge. Stable banks covered with vegetation.Very well protected on both banks & abutments. Large blowhole D/S due to high-gradient flow through bridge.Dredge levees on R side--may be overtopped, but will direct flow through bridge. Deeply incised. No signs of scour, ie cutbanks, mass wasting, etc.

BN BO BP123456789

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document.xls

District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]N882 CASTOR RI RT0BB STODDARD 3 198 -- Qimp 21900 21900 BC 18.5 9.7 L 18.6 17.2 7.7 -- 22.1N899 MAIN DD RT0ZZ STODDARD 3 102 -- Qimp 6610 6610 BC 13.4 0.0 L -- -- 5.2 -- --P388 WOLF CR RT00K STODDARD 2 113 15.9 Q100 5290 4450 BC 10.4 7.8 L 16.0 12.2 3.9 -- 16.8P389 WOLF CR DD RT00K STODDARD 2 77 11.3 Q100 4680 3585 BC 10.6 0.0 L 6.4 -- 3.9 -- 4.4P444 MAIN DD RT00Z STODDARD 3 77 -- Qimp 2440 2440 BC 8.7 1.1 L -- -- 3.9 -- --P445 DD NO 7 RT00Z STODDARD 3 59 -- Qimp 1040 1040 BC 6.1 3.0 L -- -- 3.8 -- 10.4P446 DD NO 8 RT00Z STODDARD 3 59 -- Qimp 1290 1290 BC 7.1 1.1 L -- -- 6.0 -- --P465 DD NO 41 RT0HH STODDARD 3 59 -- Qimp 2160 2160 BC 9.5 0.0 L -- -- 3.9 -- --P56 DD NO 1 RT0DD STODDARD 3 124 -- Qimp 6240 6240 BC 11.5 0.0 L -- -- -- -- --P585 MAIN DD DIST RT0HH STODDARD 3 65 -- Qimp 2300 2300 BC 9.3 0.0 L -- -- 3.9 -- --P667 LITTLE RI DD NO 4 RT0HH STODDARD 3 53 -- Qimp 1840 1840 BC 9.2 0.0 L -- -- 3.9 -- --P944 GOOSE POND DD RT0PP STODDARD 3 101 -- Qimp 4170 4170 BC 10.2 0.0 L 11.4 11.1 3.9 -- --R184 DD NO 34 RT00P STODDARD 3 91 -- Qimp 3990 3990 BC 10.8 2.8 L -- -- 5.1 -- --R185 DD NO 35 RT00P STODDARD 3 83 -- Qimp 4610 4610 BC 12.2 2.1 L -- -- 5.1 -- 19.2S168 CASTOR RI RT00K STODDARD 2 178 508 Q100 60400 60400 REG 34.9 -- -- -- -- -- -- --S613 COUNTY DD RT00H STODDARD 3 66 -- Qimp 2240 2240 BC 9.4 0.0 L -- -- 3.9 -- --S688 MUD CR RT00M STODDARD 2 72 4.05 Q100 2390 2390 REG 9.4 4.6 L 14.5 9.5 3.9 -- 11.9S742 CASTOR RI RT00M STODDARD 2 150 29.7 Q100 1880 1880 REG 4.8 -- -- -- -- -- -- --S769 DD NO 33 MO091 STODDARD 3 48 -- Qimp -- -- -- -- -- -- -- -- -- -- --S770 DD NO 34 MO091 STODDARD 3 48 -- Qimp -- -- -- -- -- -- -- -- -- -- --S771 DD NO 33 RT00P STODDARD 3 51 -- Qimp 984 984 BC 6.5 1.7 L -- -- -- -- --S846 BUCK BR RT00E STODDARD 2 71 2.23 Q100 498 498 REG 3.4 -- -- -- -- 5.3 -- 3.4T1027 ROAD DITCH RT PP STODDARD 3 36 -- Qimp 518 518 BC 5.4 0.0 L -- -- 3.8 -- --T136 CREEK RT00J STODDARD 2 58 3.19 Q100 1570 1570 REG 8.7 5.6 L 3.3 -- 3.9 -- 11.9T137 LICK CR DD RT00J STODDARD 2 148 31.0 Q100 7690 7690 REG 11.3 -- -- -- -- -- -- --T392 MAIN DD DIST RT00E STODDARD 2 48 0.72 Q100 773 773 REG 5.6 -- -- -- -- -- -- --T435 DELAWARE CR RT00F STODDARD 2 84 12.4 Q100 5400 5400 REG 12.9 -- -- -- -- -- -- --T941 MAIN DD DIST 3 RT00D STODDARD 3 83 -- Qimp 3590 3590 BC 10.5 6.2 L 8.3 9.1 3.9 -- --T942 LAT DD NO 2 DIST 3 RT00D STODDARD 3 87 -- Qimp 2180 2180 BC 7.7 1.6 L -- -- 3.9 -- 9.1T943 LAT DD NO 3 DIST OF RT00D STODDARD 3 128 -- Qimp 1370 1370 BC 6.3 2.2 L -- -- 5.2 -- 6.3T987 CASTOR RI RT00V STODDARD 2 167 497 Q100 56500 34200 BC 25.8 0.0 L 49.5 51.1 4.0 -- 27.3X730 DD NO 287 RT00O STODDARD 3 57 -- Qimp 1910 1910 BC 9.0 1.5 L -- -- 3.9 -- --X731 DD NO 33 RT00O STODDARD 3 59 -- Qimp 1210 1210 BC 7.3 0.5 L -- -- 3.9 -- --X829 DD NO 30 RT00Y STODDARD 3 61 -- Qimp 2520 2520 BC 10.2 2.7 L -- -- 3.9 -- --X830 DD NO 24 RT00Y STODDARD 3 83 -- Qimp 3470 3470 BC 10.5 0.0 L -- -- 3.9 -- --X831 DD NO 33 RT00Y STODDARD 3 65 -- Qimp 1690 1690 BC 7.7 2.1 L -- -- 3.9 -- --X832 DD NO 34 RT00Y STODDARD 3 61 -- Qimp 2360 2360 BC 9.8 2.6 L -- -- 3.9 -- --X833 DD NO 35 RT00Y STODDARD 3 65 -- Qimp 2180 2180 BC 9.0 3.8 L -- -- 3.9 -- --X837 DD NO 1 RT00Y STODDARD 3 179 -- Qimp 5280 5280 BC 10.6 0.0 L -- -- 3.9 -- --X838 DD NO 37 RT00Y STODDARD 3 55 -- Qimp 1310 1310 BC 7.3 2.0 L -- -- 3.9 -- --X839 LITTLE RI RT00Y STODDARD 3 69 -- Qimp 2620 2620 BC 9.8 7.7 L -- -- 3.9 -- --A1300 CLARK CR MO034 WAYNE 2 182 40.2 Q100 13300 13300 REG 14.4 10.1 L 2.7 2.9 6.5 -- 21.4A1813 BIG CR RT00M WAYNE 2 185 28.2 Q100 12900 12900 REG 13.5 -- -- -- -- -- -- --A255 HUBBLE CR US067 WAYNE 2 148 5.00 Q100 3680 3680 REG 7.3 -- -- -- -- -- -- --A257 FRAZIER CR US067 WAYNE 2 53 4.35 Q100 3550 3550 REG 13.2 -- -- -- -- -- -- --


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J6


M6


C7


D7


E7


G7


P10


document.xls

District 10


OT


PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]17.7 Y P N N N M N -- Minimal protection. Q's appear low--used Qimp and bootheel special technique. Mild contraction scour on R setback. Terraced banks.

-- Y P N N N Y N -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Small riprap "paving" on banks/abutments. Concrete debris on LB U/S & D/S. 17.3 Qimp 3610 3610 BC 9.2 9.0 L 13.8 9.2 3.9 -- 14.5 15.1 Y Y N P Y N -- -- No protection. Mild contraction scour on both setbacks. Overflow section on both FPs.12.8 Qimp 2490 2490 BC 8.5 1.2 L 1.6 -- 3.9 -- -- 6.3 Y Y N N N N -- -- Channel shifted to L. Levee on RB--will not be overtopped. Overflow section on LFP.

-- P Y N P ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.8.0 P Y N P ? N -- -- In flood--unable to see pier foundations. Natural levees. Current water surface 3.2' below low steel

-- P Y N P ? N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Current water surface 2.2' below low steel-- Y P N N Y N -- -- Dredge levees on R side--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Substantial headwall exposure at R abutment due to U/S drain ditch-- Y P N P Y Y N -- Man-made/dredge levees on both U/S & D/S banks--will not be overtopped. Qimp taken from U/S levee elevation. Concreted riprap on both abutments--nearly undermined on R side.-- P Y N N Y N -- -- FPs at same elevation as road. Concrete connecting caps exposed. Blowhole at bridge.-- P Y N Y Y N -- -- FPs at same elevation as road. Concrete connecting caps exposed & undermined. Blowhole at bridge. Substantial headwall exposure at both abutments--undermined. Concrete debris on U/S L WW from drain culvert.

26.2 Y Y N N Y N -- -- Levees on both U/S banks--will not be overtopped. Mild local scour at bents. Blowhole at bridge. Channel narrower U/S due to levees.-- P Y N N Y Y ? -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Pseudo-setback on R side, but U/S levee directs flow toward channel. Riprap on LB/abutment to stop impinging flow.

19.5 P Y N N Y N -- -- Dredge levees on both U/S & D/S FPs--will not be overtopped. Blowhole under bridge.-- Q500 81800 81800 REG 41.9 -- -- -- -- -- -- -- -- P P P N N Y Y -- Very well protected with riprap on both banks/abutments for approx 50' U/S & D/S. Some riprap in channel around bents. Flagged due to unknown pier scour--not a problem.-- P P N Y Y Y N -- Man-made levees on both U/S & D/S banks--will not be overtopped, no contraction. Concrete debris on L abutment. Principal problem is downcutting & angled attack of flow.

14.6 Q500 3210 3210 REG 11.2 7.9 L 17.1 14.4 3.9 -- 15.4 18.1 P Y N N Y N -- -- Concrete connecting caps exposed at both bents. Minor blowhole at bridge.-- Q500 2280 2280 REG 5.4 -- -- -- -- -- -- -- -- P P N N Y Y ? -- Riprap on both abutments & U/S LB. Concrete connecting caps exposed on bents. Flagged due to unknown pier scour--not deemed to be a problem; wide stable banks.-- Y P N N N Y N -- Dredge levees on U/S & D/S LB. Flagged due to abutment pile exposure--timber pile end bents with designed exposure. Concreted riprap on L abutment to stop erosion from lateral.-- P P N N N Y N -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on LB to stop erosion from lateral. Downcutting is principal problem.-- P P N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No piers. No signs of scour/erosion.

3.4 Q500 618 618 REG 3.9 -- -- -- -- 5.4 -- 5.5 5.5 P P N Y N -- Riprap on RB/abutment. Potential road overflow section on LFP.-- Y Y N N N N -- -- Roadside ditch; debris at U/S face

11.5 Q500 2070 2070 REG 9.4 7.1 L 5.6 -- 3.9 -- 13.1 12.8 P P N N N Y N -- Concreted riprap on both abutment faces. Blowhole at bridge.-- Q500 10200 10200 REG 13.4 -- -- -- -- -- -- -- -- P P N Y N N -- -- Road at same elevation as FPs. Flagged due to unknown pier scour, abutment exposure, & cutbank--cutbank confirmed, but well vegetated U/S & D/S. Pier cap undermined with partial pile exposure (design??). Timber pile abutments with no exposure.-- Q500 1040 1040 REG 6.7 -- -- -- -- -- -- -- -- P Y N N N N -- -- Levees on both U/S banks. Shallow channel. Flagged due to pile exposure at abutments--timber pile abutments.-- Q500 7290 7290 REG 15.4 -- -- -- -- -- -- -- -- Y P P Y N M N -- Concrete debris on LB to stop migration. Road at same elevation as FPs--no contraction before overtopping. Well vegetated banks U/S & D/S. Minor blowhole at bridge.-- P Y N N N N -- -- In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Minor contraction scour on RB.

8.5 P Y N P ? N -- -- In flood--unable to see pier foundations. Minor contraction scour observed under bridge.8.1 P Y N N ? N -- -- In flood--unable to see pier foundations. Natural levees.

29.8 Qimp 11900 11900 BC 13.7 0.0 L 23.5 23.2 3.9 -- 13.3 18.6 Y Y N P Y N -- -- Q's appear very high. Terraced banks at bridge. Located on bend in channel.-- P Y N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.-- P P N N N N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Base of piers unknown--water murky. No signs of scour.

10.3 P P N N Y M N -- Dredge levee on L side--may be overtopped, but will direct flow through bridge. Riprap on U/S RB around drain culvert. Concrete connecting caps exposed.-- P P N N Y N -- -- Levees on both U/S & D/S banks--will not be overtopped. Blowhole under bridge.-- P P N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed.-- P P N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed.-- P P N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Headwalls nearly undermined.-- P P N N Y N -- -- Dredge levee on U/S RB--may be overtopped. Levees on all other U/S & D/S banks--will not be overtopped. Setbacks at bridge at same elevation as Qimp depth.-- Y P N N Y N -- -- Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Blowhole under bridge. Headwalls nearly undermined.-- Y Y N N Y N -- -- Concrete connecting caps exposed. Low spot on LFP U/S of bridge. Headwalls nearly undermined.

19.4 Q500 18100 18100 REG 17.3 14.1 L 5.2 5.4 6.5 -- 24.1 22.0 N Y P P N N -- -- Very shallow channel. Appears to meander U/S & D/S. Heavily wooded FPs.-- Q500 17900 17900 REG 16.4 -- -- -- -- -- -- -- -- P P Y Y Y Y Y -- Riprap on both abutments/banks & U/S embankment faces. Wide shallow gravel channel. Mild cutbank on U/S RB--not a problem due to low banks. Flagged due to pier scour & observed hole--confirmed but not deemed to be problems due to shallow channel.-- Q500 5040 5040 REG 8.8 -- -- -- -- -- -- -- -- P P Y N Y Y ? -- Riprap on both abutment faces. Wide shallow gravel/cobble channel. Flagged due to pier scour & observed hole--confirmed, but deemed to be problems due to channel configuration.-- Q500 4890 4890 REG 16.0 -- -- -- -- -- -- -- -- P Y P P Y N -- -- D/S of H349. Wide shallow gravel channel. Recent work in channel between bridges. Flagged due to an observed hole--confirmed but not deemed to be a problem due to shallow channel.


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Comment codes:

Notes


Minimal protection. Q's appear low--used Qimp and bootheel special technique. Mild contraction scour on R setback. Terraced banks.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Small riprap "paving" on banks/abutments. Concrete debris on LB U/S & D/S. No protection. Mild contraction scour on both setbacks. Overflow section on both FPs.Channel shifted to L. Levee on RB--will not be overtopped. Overflow section on LFP.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Natural levees. Current water surface 3.2' below low steelIn flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Current water surface 2.2' below low steelDredge levees on R side--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Substantial headwall exposure at R abutment due to U/S drain ditchMan-made/dredge levees on both U/S & D/S banks--will not be overtopped. Qimp taken from U/S levee elevation. Concreted riprap on both abutments--nearly undermined on R side.FPs at same elevation as road. Concrete connecting caps exposed. Blowhole at bridge.FPs at same elevation as road. Concrete connecting caps exposed & undermined. Blowhole at bridge. Substantial headwall exposure at both abutments--undermined. Concrete debris on U/S L WW from drain culvert.Levees on both U/S banks--will not be overtopped. Mild local scour at bents. Blowhole at bridge. Channel narrower U/S due to levees.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Pseudo-setback on R side, but U/S levee directs flow toward channel. Riprap on LB/abutment to stop impinging flow.Dredge levees on both U/S & D/S FPs--will not be overtopped. Blowhole under bridge.Very well protected with riprap on both banks/abutments for approx 50' U/S & D/S. Some riprap in channel around bents. Flagged due to unknown pier scour--not a problem.Man-made levees on both U/S & D/S banks--will not be overtopped, no contraction. Concrete debris on L abutment. Principal problem is downcutting & angled attack of flow.Concrete connecting caps exposed at both bents. Minor blowhole at bridge.Riprap on both abutments & U/S LB. Concrete connecting caps exposed on bents. Flagged due to unknown pier scour--not deemed to be a problem; wide stable banks.Dredge levees on U/S & D/S LB. Flagged due to abutment pile exposure--timber pile end bents with designed exposure. Concreted riprap on L abutment to stop erosion from lateral.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on LB to stop erosion from lateral. Downcutting is principal problem.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No piers. No signs of scour/erosion.Riprap on RB/abutment. Potential road overflow section on LFP.Roadside ditch; debris at U/S faceConcreted riprap on both abutment faces. Blowhole at bridge.Road at same elevation as FPs. Flagged due to unknown pier scour, abutment exposure, & cutbank--cutbank confirmed, but well vegetated U/S & D/S. Pier cap undermined with partial pile exposure (design??). Timber pile abutments with no exposure.Levees on both U/S banks. Shallow channel. Flagged due to pile exposure at abutments--timber pile abutments.Concrete debris on LB to stop migration. Road at same elevation as FPs--no contraction before overtopping. Well vegetated banks U/S & D/S. Minor blowhole at bridge.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Minor contraction scour on RB.In flood--unable to see pier foundations. Minor contraction scour observed under bridge.In flood--unable to see pier foundations. Natural levees.Q's appear very high. Terraced banks at bridge. Located on bend in channel.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Base of piers unknown--water murky. No signs of scour.Dredge levee on L side--may be overtopped, but will direct flow through bridge. Riprap on U/S RB around drain culvert. Concrete connecting caps exposed.Levees on both U/S & D/S banks--will not be overtopped. Blowhole under bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Headwalls nearly undermined.Dredge levee on U/S RB--may be overtopped. Levees on all other U/S & D/S banks--will not be overtopped. Setbacks at bridge at same elevation as Qimp depth.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Blowhole under bridge. Headwalls nearly undermined.Concrete connecting caps exposed. Low spot on LFP U/S of bridge. Headwalls nearly undermined.Very shallow channel. Appears to meander U/S & D/S. Heavily wooded FPs.Riprap on both abutments/banks & U/S embankment faces. Wide shallow gravel channel. Mild cutbank on U/S RB--not a problem due to low banks. Flagged due to pier scour & observed hole--confirmed but not deemed to be problems due to shallow channel.Riprap on both abutment faces. Wide shallow gravel/cobble channel. Flagged due to pier scour & observed hole--confirmed, but deemed to be problems due to channel configuration.D/S of H349. Wide shallow gravel channel. Recent work in channel between bridges. Flagged due to an observed hole--confirmed but not deemed to be a problem due to shallow channel.


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District 10

Minimal protection. Q's appear low--used Qimp and bootheel special technique. Mild contraction scour on R setback. Terraced banks.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Small riprap "paving" on banks/abutments. Concrete debris on LB U/S & D/S. No protection. Mild contraction scour on both setbacks. Overflow section on both FPs.Channel shifted to L. Levee on RB--will not be overtopped. Overflow section on LFP.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge.In flood--unable to see pier foundations. Natural levees. Current water surface 3.2' below low steelIn flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Current water surface 2.2' below low steelDredge levees on R side--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Substantial headwall exposure at R abutment due to U/S drain ditchMan-made/dredge levees on both U/S & D/S banks--will not be overtopped. Qimp taken from U/S levee elevation. Concreted riprap on both abutments--nearly undermined on R side.FPs at same elevation as road. Concrete connecting caps exposed. Blowhole at bridge.FPs at same elevation as road. Concrete connecting caps exposed & undermined. Blowhole at bridge. Substantial headwall exposure at both abutments--undermined. Concrete debris on U/S L WW from drain culvert.Levees on both U/S banks--will not be overtopped. Mild local scour at bents. Blowhole at bridge. Channel narrower U/S due to levees.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Pseudo-setback on R side, but U/S levee directs flow toward channel. Riprap on LB/abutment to stop impinging flow.Dredge levees on both U/S & D/S FPs--will not be overtopped. Blowhole under bridge.Very well protected with riprap on both banks/abutments for approx 50' U/S & D/S. Some riprap in channel around bents. Flagged due to unknown pier scour--not a problem.Man-made levees on both U/S & D/S banks--will not be overtopped, no contraction. Concrete debris on L abutment. Principal problem is downcutting & angled attack of flow.Concrete connecting caps exposed at both bents. Minor blowhole at bridge.Riprap on both abutments & U/S LB. Concrete connecting caps exposed on bents. Flagged due to unknown pier scour--not deemed to be a problem; wide stable banks.Dredge levees on U/S & D/S LB. Flagged due to abutment pile exposure--timber pile end bents with designed exposure. Concreted riprap on L abutment to stop erosion from lateral.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concreted riprap on LB to stop erosion from lateral. Downcutting is principal problem.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. No piers. No signs of scour/erosion.Riprap on RB/abutment. Potential road overflow section on LFP.Roadside ditch; debris at U/S faceConcreted riprap on both abutment faces. Blowhole at bridge.Road at same elevation as FPs. Flagged due to unknown pier scour, abutment exposure, & cutbank--cutbank confirmed, but well vegetated U/S & D/S. Pier cap undermined with partial pile exposure (design??). Timber pile abutments with no exposure.Levees on both U/S banks. Shallow channel. Flagged due to pile exposure at abutments--timber pile abutments.Concrete debris on LB to stop migration. Road at same elevation as FPs--no contraction before overtopping. Well vegetated banks U/S & D/S. Minor blowhole at bridge.In flood--unable to see pier foundations. Dredge levees on both U/S banks--may be overtopped by Qimp, but will direct flow through bridge. Minor contraction scour on RB.In flood--unable to see pier foundations. Minor contraction scour observed under bridge.In flood--unable to see pier foundations. Natural levees.Q's appear very high. Terraced banks at bridge. Located on bend in channel.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Base of piers unknown--water murky. No signs of scour.Dredge levee on L side--may be overtopped, but will direct flow through bridge. Riprap on U/S RB around drain culvert. Concrete connecting caps exposed.Levees on both U/S & D/S banks--will not be overtopped. Blowhole under bridge.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Concrete connecting caps exposed. Headwalls nearly undermined.Dredge levee on U/S RB--may be overtopped. Levees on all other U/S & D/S banks--will not be overtopped. Setbacks at bridge at same elevation as Qimp depth.Dredge levees on both U/S & D/S banks--may be overtopped, but will direct flow through bridge. Blowhole under bridge. Headwalls nearly undermined.Concrete connecting caps exposed. Low spot on LFP U/S of bridge. Headwalls nearly undermined.Very shallow channel. Appears to meander U/S & D/S. Heavily wooded FPs.Riprap on both abutments/banks & U/S embankment faces. Wide shallow gravel channel. Mild cutbank on U/S RB--not a problem due to low banks. Flagged due to pier scour & observed hole--confirmed but not deemed to be problems due to shallow channel.Riprap on both abutment faces. Wide shallow gravel/cobble channel. Flagged due to pier scour & observed hole--confirmed, but deemed to be problems due to channel configuration.D/S of H349. Wide shallow gravel channel. Recent work in channel between bridges. Flagged due to an observed hole--confirmed but not deemed to be a problem due to shallow channel.

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District 10



TypeTotal

MethodMain channel

OverbankLeft





Maximum pier scour

Through bridge

Main chan-

nel

Over-bank

Structure number



Bridge length


[mi2] [ft3/s] [ft3/s]A518 OTTER CR RT00A WAYNE 2 156 35.7 Q100 11600 11600 REG 14.0 -- -- -- -- -- -- --A561 MCKENZIE CR RT0HH WAYNE 2 186 31.0 Q100 13500 13500 REG 13.8 -- -- -- -- -- -- --F111 ST FRANCIS RI MO034 WAYNE 2 691 950 Q100 93400 93400 REG 20.1 -- -- -- -- -- -- --H113 CREEK M0034 WAYNE 2 23 2.23 Q100 2140 1420 BC 12.5 11.0 L -- -- -- -- 31.5H114 TURKEY CR M0034 WAYNE 2 23 0.35 Q100 652 652 REG 8.2 2.0 L -- -- -- -- 19.8H348 WARDS CR OR067 WAYNE 2 33 2.14 Q100 2040 2040 REG 12.6 -- -- -- -- -- -- --H349 FRAZIER CR OR067 WAYNE 2 55 4.35 Q100 3140 3140 REG 12.0 -- -- -- -- -- -- --H80 BEAR CR MO034 WAYNE 2 113 12.9 Q100 6710 6710 REG 13.4 9.6 L 7.6 7.4 11.6 -- 34.2H81 TURKEY CR MO034 WAYNE 2 48 2.41 Q100 2550 1785 BC 9.2 2.8 C -- 2.6 -- -- 6.9J21 ST FRANCIS RI US067 WAYNE 2 851 1070 Q100 100000 100000 REG 18.5 -- -- -- -- -- -- --J935 BLACK RI & RD MO034 WAYNE 2 988 961 Q100 108000 108000 REG 17.7 -- -- -- -- -- -- --K115 MCKENZIE CR MO034 WAYNE 2 150 26.3 Q100 12300 12300 REG 14.9 -- -- -- -- -- -- --N156 LAKE CR RT0FF WAYNE 2 165 24.6 Q100 9370 9370 REG 11.9 -- -- -- -- -- -- --N545 LOST CR RT00D WAYNE 2 119 0.40 Q100 8100 8100 REG 13.3 3.8 L 7.6 4.5 6.5 -- 19.6P859 HOLLIDAY CR RT00D WAYNE 2 108 7.09 Q100 4390 4390 REG 10.3 8.3 L 3.8 0.0 6.4 -- 30.8R374 BLACK RI MO049 WAYNE 2 298 992 Q100 108000 108000 REG 36.3 -- -- -- -- -- -- --R388 BIG CR MO143 WAYNE 2 426 0.99 Q100 764 764 REG 1.5 -- -- -- -- -- -- --R455 BLACK RI MO049 WAYNE 2 387 1110 Q100 107000 107000 REG 30.9 -- -- -- -- -- -- --R459 CLARK CR MO143 WAYNE 2 155 39.0 Q100 13200 13200 REG 15.2 -- -- -- -- -- -- --R463 TURKEY CR RT0OO WAYNE 2 125 15.1 Q100 6810 6185 BC 11.1 5.8 L 7.1 6.2 4.6 -- 17.2R553 BEAR CR RT00C WAYNE 2 161 15.7 Q100 6430 6430 REG 10.0 1.7 L 4.2 7.0 3.3 -- 13.2S498 CREEK RT00A WAYNE 2 89 2.63 Q100 2430 2430 REG 7.7 -- -- -- -- -- -- --T1030 ROAD DITCH SR067 WAYNE 2 40 -- Q100 -- -- -- -- -- -- -- -- -- -- --


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PF AR

RightType

TotalMethod


Left Right

LI PS

Left Right





Maximum pier scour


Through bridge

Main chan-

nel

Over-bank



[ft3/s] [ft3/s]-- Q500 15800 15800 REG 16.9 -- -- -- -- -- -- -- -- P P P Y Y Y ? -- Concreted riprap on both abutments & U/S embankment faces. Wide gravel channel. Flagged due to pier scour & cutbank--confirmed, but not deemed to be problems due to channel configuration. Cutbank on U/S RB & D/S LB--no threat to bridge. Overflow both FPs.-- Q500 18600 18600 REG 16.8 -- -- -- -- -- -- -- -- P P Y P N Y N -- Riprap on both abutments & U/S embankment faces; also on LB & setback. Flagged due to pier scour & 2 holes--not confirmed, possibly refilled. Wide shallow gravel/cobble channel.-- Q500 127000 127000 REG 24.2 -- -- -- -- -- -- -- -- P N P Y Y Y ? -- Riprap on L abutment. Rock outcrop/bluff on R side. Wide shallow gravel channel with bars. Flagged due to unknown pier scour--presumably founded on bedrock.

32.0 Qimp 699 699 BC 8.2 11.3 L -- -- -- -- 22.5 23.5 Y Y P Y Y Y N -- Cobbles on end of U/S wingwalls. Cutbank on D/S RB. Heavily grazed field U/S. Footing exposure at R abutment.10.5 Q500 894 894 REG 9.9 3.9 L -- -- -- -- 24.6 18.5 N N Y Y Y Y N -- Large cobbles on ends of U/S & D/S wingwalls. Footing exposure at R abutment.

-- Q500 2800 2800 REG 15.2 -- -- -- -- -- -- -- -- P Y P Y Y N -- -- Very small gravel channel. Flagged due to observed scour hole & cutbank--not a problem due to shallow channel.-- Q500 4280 4280 REG 14.4 -- -- -- -- -- -- -- -- P Y P N Y N -- -- U/S of A257. Wide shallow gravel channel. Recent work in channel between bridges. Flagged due to pier scour, observed hole, & cutbank--all confirmed but not deemed to be problems due to shallow channel.

28.6 Q500 9200 9200 REG 16.1 13.9 L 10.8 10.6 11.7 -- 37.8 32.3 N P P Y Y Y N -- Concreted riprap & inlaid cobbling on both abutments & U/S embankment faces. Local scour at both bents. Bridge built w/o skew, channel approaches at 30 deg. Protection on R abutment nearly undermined--held in place by grader blades.29.1 Qimp 1020 1020 BC 6.6 1.2 C -- 0.6 -- -- -- 22.2 Y P N N Y N -- -- Raised FP on R side, road at same elevation. Levee on LB, road lower than levee--Levee used as Yimp. Footing exposure at L abutment.

-- Q500 135000 135000 REG 22.1 -- -- -- -- -- -- -- -- N N P N Y N -- -- Over Wappapello Lake arm. Rock bluff on R side. L setback is recreation area heavily riprapped & paved locally. Flagged due to footing exposure at bent 1--not confirmed, possibly revetted with riprap.-- Q500 148000 148000 REG 21.4 -- -- -- -- -- -- -- -- N P P Y Y Y ? -- Inlaid cobbling on both abutments & U/S & D/S embankment faces. Wide shallow gravel channel. Small town on U/S LFP. Flagged due to unknown peir scour--only one pier in channel, presumably founded on bedrock. Regulated by Clearwater Lake.-- Q500 17000 17000 REG 18.1 -- -- -- -- -- -- -- -- P P Y P Y Y ? -- Riprap & concrete debris on both abutment faces and on U/S & D/S RB. Coarse gravel channel with stable LB. Flagged due to footing exposure--confirmed, but size of footing indicative of one founded on bedrock-- Q500 12800 12800 REG 14.4 -- -- -- -- -- -- -- -- P P P Y Y Y ? -- Concreted riprap on both abutment faces & U/S embankment faces. Mild local scour on L setback. Channel migrating to L U/S. Flagged due to pier scour & observed hole--not deemed to be problems due to channel configuration. Rock bluff on D/S RB.

14.7 Q500 10900 10900 REG 15.9 6.7 L 10.4 7.1 6.5 -- 21.8 19.5 Y N P Y Y Y N -- Concreted riprap on L abutment/bank. Blowhole at bridge. Located on bend in channel.19.5 Q500 6000 6000 REG 11.9 10.2 L 6.3 0.4 6.5 -- 32.9 24.0 P N N Y Y Y ? -- Riprap on L abutment & U/S embankment face. Mild local scour at L bent. No protection on R side. Road embankment on RFP.

-- Q500 148000 148000 REG 43.9 -- -- -- -- -- -- -- -- Y P P Y Y Y N -- Riprap on both abutment faces and on L U/S embankment face. Wide, relatively shallow gravel channel. Rootwads exposed on banks, indicating migration. Flagged due to unknown pier, L abut pile exp--confirmed pile, cap undermined, revetted. Pier on bedrock.-- Q500 1010 1010 REG 1.8 -- -- -- -- -- -- -- -- P N P N Y Y Y Y Concreted riprap on L abutment & on spurdike on L side. Rock outcrop/bluff on R side. Wide shallow gravel channel. Flagged due to unknown pier scour--not deemed to be a problem due to protection.-- Q500 146000 146000 REG 37.2 -- -- -- -- -- -- -- -- Y P P Y Y Y ? -- Riprap on L abutment & U/S & D/S embankment faces. Rock outcrop/bluff on R side. Located on bend in channel; cutbank on LB partially protected with concrete debris. Flagged due to unknown pier scour--presumably founded on bedrock.-- Q500 18000 18000 REG 18.3 -- -- -- -- -- -- -- -- P P P P Y Y Y -- Riprap on both abutments/setbacks/banks for approx 50' U/S & D/S. Wide shallow gravel channel. Flagged due to pier scour & 2 holes--confirmed but not problems due to protection.

19.3 Qimp 5560 5560 BC 10.4 6.4 L 6.4 5.5 4.6 -- 15.9 18.1 Y Y P P Y N -- -- Meandering channel U/S & D/S. Substantial debris on R bent. Local scour at both bents.15.7 Q500 8710 8710 REG 12.0 3.2 L 6.5 9.5 3.3 -- 17.0 19.4 P P P N Y N -- -- Old low-water crossing U/S. Local scour at R bent. Potential road overflow on RFP.

-- Q500 3330 3330 REG 9.3 -- -- -- -- -- -- -- -- P P Y N Y Y ? -- Concreted inlaid cobbling on L abutment & U/S embankment face. Wide shallow gravel/cobble channel. Flagged due to abutment pile exposure--timber end bents; not a problem.-- Q500 -- -- -- -- -- -- -- -- -- -- -- -- P P Y N Y Y Y -- Riprap along US67 embankment on L side; inlaid cobbling on R abutment & D/S RB. Flagged due to pier scour, abutment pile exp, & riprap condition--not deemed to be problems due to channel configuration. No contraction, downcutting principal problem.


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District 10

Comment codes:

Notes


Concreted riprap on both abutments & U/S embankment faces. Wide gravel channel. Flagged due to pier scour & cutbank--confirmed, but not deemed to be problems due to channel configuration. Cutbank on U/S RB & D/S LB--no threat to bridge. Overflow both FPs.Riprap on both abutments & U/S embankment faces; also on LB & setback. Flagged due to pier scour & 2 holes--not confirmed, possibly refilled. Wide shallow gravel/cobble channel.Riprap on L abutment. Rock outcrop/bluff on R side. Wide shallow gravel channel with bars. Flagged due to unknown pier scour--presumably founded on bedrock.Cobbles on end of U/S wingwalls. Cutbank on D/S RB. Heavily grazed field U/S. Footing exposure at R abutment.Large cobbles on ends of U/S & D/S wingwalls. Footing exposure at R abutment.Very small gravel channel. Flagged due to observed scour hole & cutbank--not a problem due to shallow channel.U/S of A257. Wide shallow gravel channel. Recent work in channel between bridges. Flagged due to pier scour, observed hole, & cutbank--all confirmed but not deemed to be problems due to shallow channel.Concreted riprap & inlaid cobbling on both abutments & U/S embankment faces. Local scour at both bents. Bridge built w/o skew, channel approaches at 30 deg. Protection on R abutment nearly undermined--held in place by grader blades.Raised FP on R side, road at same elevation. Levee on LB, road lower than levee--Levee used as Yimp. Footing exposure at L abutment.Over Wappapello Lake arm. Rock bluff on R side. L setback is recreation area heavily riprapped & paved locally. Flagged due to footing exposure at bent 1--not confirmed, possibly revetted with riprap.Inlaid cobbling on both abutments & U/S & D/S embankment faces. Wide shallow gravel channel. Small town on U/S LFP. Flagged due to unknown peir scour--only one pier in channel, presumably founded on bedrock. Regulated by Clearwater Lake.Riprap & concrete debris on both abutment faces and on U/S & D/S RB. Coarse gravel channel with stable LB. Flagged due to footing exposure--confirmed, but size of footing indicative of one founded on bedrockConcreted riprap on both abutment faces & U/S embankment faces. Mild local scour on L setback. Channel migrating to L U/S. Flagged due to pier scour & observed hole--not deemed to be problems due to channel configuration. Rock bluff on D/S RB.Concreted riprap on L abutment/bank. Blowhole at bridge. Located on bend in channel.Riprap on L abutment & U/S embankment face. Mild local scour at L bent. No protection on R side. Road embankment on RFP.Riprap on both abutment faces and on L U/S embankment face. Wide, relatively shallow gravel channel. Rootwads exposed on banks, indicating migration. Flagged due to unknown pier, L abut pile exp--confirmed pile, cap undermined, revetted. Pier on bedrock.Concreted riprap on L abutment & on spurdike on L side. Rock outcrop/bluff on R side. Wide shallow gravel channel. Flagged due to unknown pier scour--not deemed to be a problem due to protection.Riprap on L abutment & U/S & D/S embankment faces. Rock outcrop/bluff on R side. Located on bend in channel; cutbank on LB partially protected with concrete debris. Flagged due to unknown pier scour--presumably founded on bedrock.Riprap on both abutments/setbacks/banks for approx 50' U/S & D/S. Wide shallow gravel channel. Flagged due to pier scour & 2 holes--confirmed but not problems due to protection.Meandering channel U/S & D/S. Substantial debris on R bent. Local scour at both bents.Old low-water crossing U/S. Local scour at R bent. Potential road overflow on RFP.Concreted inlaid cobbling on L abutment & U/S embankment face. Wide shallow gravel/cobble channel. Flagged due to abutment pile exposure--timber end bents; not a problem.Riprap along US67 embankment on L side; inlaid cobbling on R abutment & D/S RB. Flagged due to pier scour, abutment pile exp, & riprap condition--not deemed to be problems due to channel configuration. No contraction, downcutting principal problem.


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District 10

Concreted riprap on both abutments & U/S embankment faces. Wide gravel channel. Flagged due to pier scour & cutbank--confirmed, but not deemed to be problems due to channel configuration. Cutbank on U/S RB & D/S LB--no threat to bridge. Overflow both FPs.Riprap on both abutments & U/S embankment faces; also on LB & setback. Flagged due to pier scour & 2 holes--not confirmed, possibly refilled. Wide shallow gravel/cobble channel.Riprap on L abutment. Rock outcrop/bluff on R side. Wide shallow gravel channel with bars. Flagged due to unknown pier scour--presumably founded on bedrock.Cobbles on end of U/S wingwalls. Cutbank on D/S RB. Heavily grazed field U/S. Footing exposure at R abutment.Large cobbles on ends of U/S & D/S wingwalls. Footing exposure at R abutment.Very small gravel channel. Flagged due to observed scour hole & cutbank--not a problem due to shallow channel.U/S of A257. Wide shallow gravel channel. Recent work in channel between bridges. Flagged due to pier scour, observed hole, & cutbank--all confirmed but not deemed to be problems due to shallow channel.Concreted riprap & inlaid cobbling on both abutments & U/S embankment faces. Local scour at both bents. Bridge built w/o skew, channel approaches at 30 deg. Protection on R abutment nearly undermined--held in place by grader blades.Raised FP on R side, road at same elevation. Levee on LB, road lower than levee--Levee used as Yimp. Footing exposure at L abutment.Over Wappapello Lake arm. Rock bluff on R side. L setback is recreation area heavily riprapped & paved locally. Flagged due to footing exposure at bent 1--not confirmed, possibly revetted with riprap.Inlaid cobbling on both abutments & U/S & D/S embankment faces. Wide shallow gravel channel. Small town on U/S LFP. Flagged due to unknown peir scour--only one pier in channel, presumably founded on bedrock. Regulated by Clearwater Lake.Riprap & concrete debris on both abutment faces and on U/S & D/S RB. Coarse gravel channel with stable LB. Flagged due to footing exposure--confirmed, but size of footing indicative of one founded on bedrockConcreted riprap on both abutment faces & U/S embankment faces. Mild local scour on L setback. Channel migrating to L U/S. Flagged due to pier scour & observed hole--not deemed to be problems due to channel configuration. Rock bluff on D/S RB.Concreted riprap on L abutment/bank. Blowhole at bridge. Located on bend in channel.Riprap on L abutment & U/S embankment face. Mild local scour at L bent. No protection on R side. Road embankment on RFP.Riprap on both abutment faces and on L U/S embankment face. Wide, relatively shallow gravel channel. Rootwads exposed on banks, indicating migration. Flagged due to unknown pier, L abut pile exp--confirmed pile, cap undermined, revetted. Pier on bedrock.Concreted riprap on L abutment & on spurdike on L side. Rock outcrop/bluff on R side. Wide shallow gravel channel. Flagged due to unknown pier scour--not deemed to be a problem due to protection.Riprap on L abutment & U/S & D/S embankment faces. Rock outcrop/bluff on R side. Located on bend in channel; cutbank on LB partially protected with concrete debris. Flagged due to unknown pier scour--presumably founded on bedrock.Riprap on both abutments/setbacks/banks for approx 50' U/S & D/S. Wide shallow gravel channel. Flagged due to pier scour & 2 holes--confirmed but not problems due to protection.Meandering channel U/S & D/S. Substantial debris on R bent. Local scour at both bents.Old low-water crossing U/S. Local scour at R bent. Potential road overflow on RFP.Concreted inlaid cobbling on L abutment & U/S embankment face. Wide shallow gravel/cobble channel. Flagged due to abutment pile exposure--timber end bents; not a problem.Riprap along US67 embankment on L side; inlaid cobbling on R abutment & D/S RB. Flagged due to pier scour, abutment pile exp, & riprap condition--not deemed to be problems due to channel configuration. No contraction, downcutting principal problem.

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10416417418419420421422423424425426427428429430431432433434435436437438