BRIDGE # MUN 154 over N CHANNEL MISS RIVERMUN 154 over N CHANNEL MISS RIVER Minnesota Structure...

2016 UNDERWATER

BRIDGE INSPECTION REPORT

BRIDGE #

DISTRICT: COUNTY: CITY/TOWNSHIP:

Date of Inspection:

Equipment Used:

Inspected By:

Report Written By:

Report Reviewed By:

Final Report Date:

4260

MUN 154 over N CHANNEL MISS RIVER

District 6 Winona WINONA

11/30/2016

Forsyth, Roy

Roy Forsyth

City or Municipal Highway AgencyOwner:

MinnesotaSTATE:

UNDERWATER SUMMARY 3

UNDERWATER INSPECTION 4

UNDERWATER INSPECTION PROCEDURES 6

APPENDIX A: STRUCTURE INVENTORY 7

ELEMENTS 8

PICTURES 13

DRAWINGS 21

TABLE OF CONTENTS

PAGE NUMBER

Contractor:

RECOMMENDATIONS:(A) Prior placement of riprap at the piers has substantially improved structural integrity of the bridge. Therefore, monitor footing exposure during future inspections and reinspect the submerged substructure units at the normal maximum recommended (NBIS) interval of sixty (60) months.

Collins Engineers

9687Contractor Job Number:

RECOMMENDATIONS

REPORT SUMMARY

UNDERWATER INSPECTION

The substructure units inspected at Bridge No. 4260, Piers 1 through 13, were found to be in satisfactory condition. The submerged concrete was typically in satisfactory to fair condition with moderate scaling from 1 foot above to 1 foot below the waterline and random widespread hairline cracking throughout most pier shafts. The structure had extensive riprap with sand infilling present around all of the piers to address any past footing undermining. The riprap typically extended to top of footing or to no lower than 3 feet below top of footing. The concrete footings typically exhibited rough surfaces with up to 3 inch maximum penetration.

INSPECTION FINDINGS:(A) The channel bottom at Pier 13 consisted of silt with small stones and no riprap. Stone and rubble was observed at the upstream and downstream ends.(B) The channel bottom of Piers 1 through 12 consisted of riprap typically 1 to 2 feet in diameter with a maximum diameter of up to 3 feet. It was observed around the entire perimeter of all piers typically extending to top of footing or to no lower than 3 feet below top of footing. The concrete footing typically exhibited rough surfaces with up to 3 inch maximum penetration.(C) The submerged concrete was typically in satisfactory condition with moderate scaling from 1 foot above the waterline to 1 feet below the waterline with typical penetrations of 1 inch and maximum penetrations of up to 6 inch. Random vertical and horizontal hairline cracks were also observed on the concrete shaft surfaces widespread throughout all piers. Cracking often has efflorescence associated with it. (D) Pier 9 exhibited an area of section loss on the downstream south corner from 6 inches above to 2 foot below the waterline with up to 6 inches of penetration and no exposed steel.(E) The upstream nose and west face of Pier 3 had moderate timber debris from channel bottom up to 4 feet above waterline, consisting of 2 foot diameter and smaller logs. (F) There was a 2 foot diameter by 30 foot long log at the west face of Pier 1 extending from the channel bottom up 2 feet.

INSPECTION FINDINGS

of 25

12.1Maximum Water Depth at Substructure(s) Inspected (feet):

Oblong rectangular shafts with rounded corners which sit on rectangular footings that are founded on timber piles.

Water Level Reference:

WATERLINE DATUM4.

General Shape:

3.

1.5Waterway Velocity (ft/sec):

Piers 1 through 13.Substructure(s) Inspected:

SUBSTRUCTURE INSPECTION DATA

Springline at the downstream end of Pier 1.

5Code:Item 60: Substructure:

8Code:Item 61: Channel and Channel Protection:

(Minnesota specific codes are used for 92B and 113)

Description:

Waterline Elevation (feet):

NBIS CODING INFORMATION5.

District:

MUN 154Facility Carried:

085 - WinonaCounty:

District 6

N CHANNEL MISS RIVER

BRIDGE DATA1.


Feature Intersected:

4260Bridge #:

Bridge Description:

Weather Conditions:

11/30/2016Date of Underwater Inspection:

None/NegligibleUnderwater Visibility (feet):

Cloudy, 30 °F

INSPECTION DATA2.

The superstructure consists of twenty-four spans of reinforcedconcrete arches or beams. The main spans across the channel areopen spandrel reinforced concrete arches. The bridge is supported byreinforced concrete piers which are founded on timber piles. Thechannel piers are numbered 1 through 13 starting with Pier 1 on theeast shore.

Inspection Diver:

Roy ForsythProfessional Engineer/Team Leader:

of 25

885 1EAScour 1

50275

EA 1212220 Reinforced Concrete Footing

LF

No (Mark your selection with an X)XYes

6. STRUCTURAL ELEMENT CONDITION RATING

Item 92B: Underwater Inspection: Code:

Item 62: Culvert: Code:

P

Bridge is scour critical because abutment or pier foundation is rated as unstable due to observed scour at bridge site.

Code:

Y 48 11/2016

Item 113: Scour Critical Bridge:

CS2 CS3CS1Quantity Unit

Reinforced Concrete Pier Wall 325210

CS4

Conditions

ELEM # Element Description

of 25

The routine underwater inspection of Bridge 4260 (City Route 154 over the North Channel of the Mississippi River) was completed on November, 30, 2016. The underwater inspection was conducted from a 20 foot boat. The inspection was conducted by a team consisting of a PE-Diver with a valid MnDOT Team leader certification, a backup diver and a dive tender. The inspection utilized commercial dive equipment and techniques (SSA and/or SCUBA) in accordance with OSHA regulations. Profiles were taken along the upstream and downstream faces of the bridge and around the periphery of substructure units to determine the presence, location and area of scour.

The bridge elements inspected consisted of 13 piers and 12 concrete footings. According to the bridge inventory or design drawings, Piers 1 through 13 were founded on timber pile footings. Inspection procedures followed FHWA guidance and the MnDOT Bridge and Structure Inspection Program Manual with channel bottom probing to search for bottom of foundations. The routine underwater inspection frequency is recommended to remain at 60 months based on those findings and risk factors. Also, inspection procedures should continue to follow the above approach and standard guidance with 100% Level I and 10% Level II intensity efforts.

INSPECTION PROCEDURES


of 25

Spec. Feat.Pier Foundation (Material/Type)

1 - CONCCantilever ID

+ W A T E R W A Y +Number of Spans Historic Status

3 - FTG PILE

Underwater 60Culvert Type 3 - FTG PILE

Pinned Asbly.

11/30/2016

Barrel Length

1220.0 ft. Navigation Control

Waterway Opening (sf.) 99999Structure Length

ft. Year Painted

0 - No nav. control on waterwayDeck Width (Out-to-Out) 24.5

+ P A I N T +

APPR: 11 TOTAL:5 - Not eligible

MAIN: 13

Main Span Length 72.0 ft.Drainage Area (sq. mi.)

B R I D G E D A T A +Main Span Detail

N - NOT REQUIRED+ M I S C.

Appr. Span Type 1 - Concrete Structure Flared

V - OPEN SPANDREL ARCH GR Termini N - NOT REQUIRED

Appr. Guardrail

Main Span Type 2 - Concrete Continuous Median Width On Bridge

ft. Bridge Railing 0 - SUBSTANDARD

N - NOT REQUIRED

Main Span Design 12 - Arch

ft. GR Transition

Skew 0

Y/N Freq Date

Abutment Foundation (Material/Type)

1 - CONC Frac. Critical

D E P T H I N S P. +Appr. Span Design

0 - No flare+ I N

Appr. Span Detail Field Conn. ID

06 - Deck Girder Parallel Structure N - No parallel structure

Pier Protection

0 - Not Required

Rating Date 12/15/200621345 sq. ft. Traffic

ft. 50B. Rt 5.00Sidewalk Width 50A. Lt 0.00

Roadway Area (Curb-to-Curb)

Posted Load 1 - Vehicle Only (Type R12-1A)

PostingStructure Area (Out-to-Out) 29890 sq. ft.

DBL:VEH: 4 SEMI:

Rt 02 ARail Type Lt 02 C N - N/AN - N/A B N - N/A

N - Not Applicable Overweight Permit CodesCurb Height Lt

ft. Horizontal 0 - Not Required

0.00 ft. Vertical0.00 ft. Rt

Wear Surf Install Year

sq. ft. Nav. Vert. Lift Bridge Clear. (ft.)

P - STBL - PROT INPL

Year 2016Primer Type MN Scour Code

Painted Area

Unsound Paint % Nav. Clr. (ft.)Deck Material 1 - Concrete Cast-in-Place 0.0Wear Surf Type 4 - Low Slump Concrete

Vert. 0.0 Horiz.

S I G N S +Operating Rating 2 - HS TRUCK

0 - None + B R I D G E

Inventory Rating 2 - HS TRUCK 1.3

2.2Deck Rebars Install Year

Deck Rebars

Finish TypeWear Course/Fill Depth 0.00 ft.

0 - None

Design Load 0 - Other/Unknown

+ C A P A C I T Y R A T I N G S +Deck Membrane

44 ° 3

Inspector Name Forsyth, Roy

Latitude Control Section (TH Only) Status' 35.11 ''

3 - One lane bridge for 2-way traffic

Routine Inspection Frequency 12

Sect., Twp., Range

AT E COUNTY LINE Level of Service 1 - MAINLINE

- 07W Roadway Type23 - 107N

Detour Length 99.0 mi.R A T I N G S +

Custodian 04 - City or Municipal Highway Agency

Owner 04 - City or Municipal Highway Agency

Deck 5 Unsound Deck %

C O N D I T I O N° 37 '

P - Posted for Load

Longitude 91 000+00.147 + N B I 55.74 '' Reference Point

Crew

+ I N S P E C T I O N +

Agency Br. No. 214

District 06

Bridge Match ID (TIS) 0 Userkey

MUN 154 over N CHANNEL MISS RIVER

Minnesota Structure Inventory Report

Bridge ID: 4260

+ G E N E R A L + + R O A D W A Y +

Date: 12/23/2016

Sufficiency Rating 26.6Roadway Name or Description

154

City WINONA

Routine Inspection Date 04/21/2016

Desc. Loc.

Township MUN 154

Number

NRoadway O/U Key Route On StructureMaint. Area Structurally Deficient

YRoute Sys 10 - MUNCounty 085 - Winona Functionally Obsolete

Lanes

Waterway Adequacy 8Max. Vert. Clear.

ft.Legislative District 31Aft.Potential ABC 2 - N/A ft.

ft.On - Off System Roadway Width 17.50 ft.

Vertical Clearance ft.0 - OFF

Underclearances N

Service On 5 - Highway-pedestrian Appr. Surface Width+ S A F E T Y F E A T U R E S +

5 - Waterway Bridge Roadway Width 17.5

24.0 ft.

Service Under

ft.

17.4 ft. Approach Alignment 6Horizontal Clear.

ft.

ft.+ S T R U C T U R E + Lateral Clearance

HCADT ADTT5

Year Built 1916

MN Year Reconstructed 1947 Functional Class

%Channel 8

Substructure

0Superstructure 5

ON 1 UNDER

40 YEAR 1989BMU Agreement ADT

Structure Evaluation 3If Divided

D I M E N S I O N S +Bridge Plan Location 0 - NO PLAN

Deck Geometry 3NB-EB SB-WBDate Opened to Traffic

+ R D W Y

FHWA Year Reconstructed 2003

MN Temporary Status

19 - Urban - LocalCulvert N

A P P R A I S A L R A T I N G S ++ N B I

of 25

County:

City:

Township:

Township:Section: Range:

Span Type:

NBI Deck: Super: Sub: Chan: Culv:

Appraisal Ratings - Approach: Waterway:

Required Bridge Signs - Load Posting:

Horizntal:

Traffic:

Vertical:

MN Scour Code:

Open, Posted, Closed:

Location:

Route:

Control Section:

Local Agency Bridge Nbr.:

Ref. Pt.:

Maint. Area:

Length:

Deck Width:

Rdwy. Area/ Pct. Unsnd:

Paint Area/ Pct. Unsnd:

Culvert:

Winona

WINONA

107N23 07W

2 - Concrete Continuous 11 - Arch -Deck

5 5 5 8 N

6 8

1 - Vehicle Only (TypeR12-1A)

0 - Not Required

0 - Not Required

N - Not Applicable

P - STBL - PROT INPL

AT E COUNTY LINE

10 - MUN 154 000+00.147

1220.0

24.5

21345 sq. ft. / %

sq. ft. / %

N/A

P - Posted for Load

ft.

ft.

Postings: 4List:

MINNESOTA BRIDGE INSPECTION REPORT

01/30/2017

BRIDGE 4260 MUN 154 OVER N CHANNEL MISS RIVER

Unofficial Structurally Deficient N

YUnofficial Functionally Obsolete

Unofficial Sufficiency Rating 26.6

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4REPORT TYPE

Reinforced Concrete Deck 12/23/2016 29890 SF 8880 21000 10 012 Underwater

04/21/2016 29890 SF 8880 21000 10 0Routine

Notes: All of the deck sections have cracks with efflorescence and water staining.[2014 - 2016] - no change

510 - Wearing Surfaces 21345 SF 21122 220 3 0

Notes: Low Slump Overlay with Uncoated Rebar Notes: The deck was repaired and overlaid in 2003 with low slump concrete overlay. There isdelaminated concrete at both joints adjacent to the curb in the 6th and 7th deck sections from the west end.[2014] - no change [2015 -2016] - unsound area <0.1%

Underwater 12/23/2016

21345 SF 21122 220 3 0Routine 04/21/2016

Reinforced Concrete OpenGirder/Beam

12/23/2016 600 LF 540 50 10 0110 Underwater

04/21/2016 600 LF 540 50 10 0Routine

Notes: The concrete deck girders are located in Spans 1 through 9 and span 24. There are two concrete deck girders per span and are ofvarying depths.There are scattered areas of minor vertical cracks with some minor concrete scaling and some exposed vertical rebars.2013 - There are some areas of spalling concrete with exposed rebar near open joints.[2014 - 2016] - no change

Reinforced Concrete Arch 12/23/2016 1840 LF 887 603 350 0144 Underwater

04/21/2016 1840 LF 887 603 350 0Routine

Notes: 2013 - Most patches have minor hairline cracks with some spall and delamination around the edge of the patch.

Refer to the snooper report for this element.

[2014] - no change [2015 - 2016] - some spalls have exposed rebar.

Arch Spandrel Column Notes: Starting at span 10 there are eight spandrel columns per span.


2013 - All spandrels have random cracking.[2014] - no change [2015 -2016] - some patches and delaminations

of 25

Reinforced Concrete Floor Beam 12/23/2016 2352 LF 1802 500 50 0155 Underwater

04/21/2016 2352 LF 1802 500 50 0Routine

Notes: There are seven 16' floorbeams per span. There are numerous patched areas along the concrete floorbeams with some having randomcracks and delaminated areas. There are several exposed vertical and horizontal rebar.


2013 - Several concrete floor beams have cracking, rust staining, delaminations, and section loss on exposed rebars near open joints. There is65' of deterioration on spans 1-9. The remainder is over the water.[2014 - 2016] - no change

Reinforced Concrete Column 12/23/2016 44 EA 15 27 2 0205 Underwater

04/21/2016 44 EA 15 27 2 0Routine

Notes: There are total of 22 Piers with two columns per pier for a total of forty four (44) columns. There are columns that have random crackswith delaminated areas.


2013 - Pier 11-both columns have random cracks and spalls/delamination, Pier 13-both columns have random cracks and spalls/delamination,Pier 16-both columns have random cracks and spalls/delamination[2014] - no change[2015-2016] - some new patches have delaminations.

Reinforced Concrete Pier Wall 12/23/2016 528 LF 300 224 4 0210 Underwater

04/21/2016 528 LF 300 224 4 0Routine

Notes: [2015-2016] - spans 10-22 have pier walls in the water. refer to the snooper report for pier wall notes. pier wall element shall have thesame quantity as pier cap.

Reinforced Concrete Abutment 12/23/2016 75 LF 0 65 10 0215 Underwater

04/21/2016 75 LF 0 65 10 0Routine

Notes: There is no abutment on the west end of the bridge.East Abutment - there is an open full height vertical crack in the center of the abutment. The crack opening varies from 1/4" + and becomeswider at the bottom. There are spalls and delaminated concrete along the SE and NE edges of the abutment. [2014 -,2015] - no change.[2016] East abutment wall has a full width leaching horizontal crack, located approx. half way up the wall.

Wingwall notes: The wingwalls are located only on the east end of the bridge.SE Wingwall - there are several full height vertical cracks in the wingwall.NE Wingwall - there is a diagonal crack in the wingwall.[2014] - no change [2015] - the front corner of the NE wingwall next to the abutment has spalls and delaminations and cracking patches.[2016] Each wingwall has a full length cold joint (horizontal crack)

Reinforced Concrete Pile Cap/Footing 12/23/2016 12 LF 0 12 0 0220 Underwater

Notes: [2016 Underwater Inspection] - Pier footings are exposed at Piers 1 through 12.

Reinforced Concrete Pier Cap 12/23/2016 528 LF 264 254 10 0234 Underwater

04/21/2016 528 LF 264 254 10 0Routine

Notes: Starting at pier 10 each pier has 16' long caps. Refer to the snooper report for this element.2013 - As noted in the snooper report. [2014-2016 ] - no change

Open Expansion Joint 12/23/2016 349 LF 349 0 0 0304 Underwater

04/21/2016 349 LF 349 0 0 0Routine

Notes: The open joints have new steel edge plates. At the time of this inspection no deterioration was noted.[2014 - 2016] - no change

Reinforced Concrete Approach Slab 12/23/2016 370 SF 0 0 370 0321 Underwater

04/21/2016 370 SF 0 0 370 0Routine

Notes: The concrete approach is on the east end of the bridge. The concrete is broken up at the joint with the deck and has settled up to 3" ormore. Attempts have been made to patch the approach with bituminous.[2014, 2015] - no change [2016] Same plus moderate scaling concrete and settlement, full width . Use CS 3


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

of 25

Reinforced Concrete Bridge Railing 12/23/2016 2440 LF 2342 90 8 0331 Underwater

04/21/2016 2440 LF 2342 90 8 0Routine

Notes: All rail sections were repaired in 2003. The south side rail at joint 12 has a diagonal crack with a 8" x 12" delaminated area of concrete.2012 - there is a 1' x 1' delamination located between the 6th and 7th joint on the front face of the north rail.[2014] - no change [2015 - 2016] - several rail sections on each side with moderate patching have leaching random cracks.

Critical Deficiencies or Safety Hazards 12/23/2016 1 EA 1 0 0 0800 Underwater

04/21/2016 1 EA 1 0 0 0Routine

Notes: [2014 - 2016] - No critical findings were observed at the time of inspection.

Concrete Decks - Cracking & Sealing 12/23/2016 2200 LF 400 1800 0 0810 Underwater

04/21/2016 2200 LF 400 1800 0 0Routine

Notes: There are numerous unsealed transverse and longitudinal cracks across the entire deck surface. There is over 90 linear feet of cracksin each deck section.[2014 - 2016] - no change

Bituminous Approach Roadway 12/23/2016 1 EA 0 1 0 0822 Underwater

04/21/2016 1 EA 0 1 0 0Routine

Notes: The bituminous approach is on the west end of the bridge. The approach is 6" lower than the deck. A 2' wide concrete slope ramp waspoured at the end of the deck to level the gap between the bituminous approach and the deck. The concrete ramp has unsealed cracks and isdelaminated.[2014 - 2016] - no change

Secondary Members (Superstructure) 12/23/2016 29 EA 28 1 0 0855 Underwater

04/21/2016 29 EA 28 1 0 0Routine

Notes: The secondary elements are the struts between the columns on piers 4 to 10.The strut at pier 8 has an area of poorly consolidated concrete and a delamination on the bottom.2013 - quantity changed due to the fact that there are 2 struts on spans 10-22[2014 - 2016] - no change

Concrete Shear Cracking 12/23/2016 1 EA 1 0 0 0883 Underwater

04/21/2016 1 EA 1 0 0 0Routine

Notes: [2016] No shear cracks found at concrete elements.

Scour 12/23/2016 1 EA 1 0 0 0885 Underwater

04/21/2016 1 EA 1 0 0 0Routine

Notes: An underwater inspection on the bridge was completed by Ayres Associates in October of 2004. No corrective actions wererecommended. The Ayres report stated that rip rap has been placed around the pier footings and that the concrete below the water is in faircondition.[2014 - 2016] - no change

Load Posting or Vertical ClearanceSigning

12/23/2016 1 EA 1 0 0 0890 Underwater

04/21/2016 1 EA 1 0 0 0Routine

Notes: [2016] correct load posting sign (4T) is posted at each end.

Other Bridge Signing 12/23/2016 1 EA 1 0 0 0891 Underwater

04/21/2016 1 EA 1 0 0 0Routine

Notes: Load posting, speed limit, and danger signs are posted on both ends of the deck.[2014 - 2016] - no change

Slopes & Slope Protection 12/23/2016 1 EA 0 1 0 0892 Underwater

04/21/2016 1 EA 0 1 0 0Routine

Notes: There is erosion of the slope along the SE wingwall.[2014 - 2016] - no change


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

of 25

Deck & Approach Drainage 12/23/2016 1 EA 1 0 0 0894 Underwater

04/21/2016 1 EA 1 0 0 0Routine

Notes: All deck drains were open.[2014 - 2016] - no change

Sidewalk, Curb, & Median 12/23/2016 1 EA 0 1 0 0895 Underwater

04/21/2016 1 EA 0 1 0 0Routine

Notes: The curbs were repaired under the deck contract in 2003.There is a spall in the curbing in the NE end of the 4th deck section from the west end of the bridge. There are unsealed cracks in both curbs.[2014 - 2016] - no change

Miscellaneous Items 12/23/2016 1 EA 0 1 0 0899 Underwater

04/21/2016 1 EA 0 1 0 0Routine

Notes: The sidewalk on the NE end of the deck is broken up. There is a 2' gap between the sidewalk and the end of the bridge. The railingalong the sidewalk is rusted through and needs to be replaced. The NE railing is inadequate for pedestrian protection and should be replaced.THIS RAILING IS DANGEROUS. The SE side rail is new and in good condition.2012 - NE Railing has been replaced. Replacement railing is a new square tube welded railing.2013 - The sidewalk on the NE end of the deck is broken up. There is a 12' gap along the curb near the end of the bridge at the SE corner.[2014 - 2016] - no change

Protected Species 12/23/2016 1 EA 0 1 0 0900 Underwater

04/21/2016 1 EA 0 1 0 0Routine

Notes: [2016] There are swallow nests on the bridge.

General Notes: BRIDGE WAS CLOSED 11/1/96 AS ORDERED BY MN/DOT

The City of Winona contracted for the repair of the deck and railing in 2003. After repair of the deck, all pourable joints wereremoved. After the repairs in 2003 were completed, Mn/DOT personnel started inspecting this structure. A separate contractwas issued in 2004 to repair the pier scour. Scour was repaired by adding rip rap around the piers. The bridge was re-openedafter the scour repair was completed. An underwater inspection was completed on the bridge by Ayres Associates in Octoberof 2004. Ayres report stated that no corrective actions will be needed.

Mn/DOT inspection personnel used a boat to inspect the bridge in 2005.Mn/DOT inspection personnel used a snooper to inspect the bridge in 2008.[2011] - inspected by Gary Waletzki.[2012] - inspected by Steve Miller.[2013] - inspected by Gary Waletzki, Aaron Forthun, and Robert Pyfferoen. Mn/DOT inspection personnel used a snooper toinspect the bridge.[2014 & 2016] - inspected by Robert Pyfferoen. Limited access to River Spans. Visual assistance with binoculars was used.The arch span elements 144, 155, 385, 380, 205, and 234 were not closely inspected at this time due to the limited access.[2015] - inspected by Robert Pyfferoen, Tony Bale, Aaron Forthun, and Gary Waletzki. Mn/DOT inspection personnel used aboat to inspect the bridge.

NBI code change for deck from 7 to 5 (RCP- 2016), due to under deck cracking, staining and deterioration.

58. Deck NBI:

36A. Brdg Railings NBI:

36B. Transitions NBI:

36C. Appr Guardrail NBI:

36D. Appr GuardrailTerminal NBI:

59. Superstructure NBI:

60. Substructure NBI:

61. Channel NBI:

62. Culvert NBI:

71. Waterway Adeq NBI:

72. Appr RoadwayAlignment NBI:

[2016] - moderate under deck cracking, staining & deterioration with some delamination

[2014] - cracking, delam. and spalling with exposed reinforcement

[2016] - moderate cracking, staining & isolated structural cracking

[2014] - The banks are in stable condition.

[2016] deck above floodwater elevations

[2015] - very minor speed reduction required


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

of 25


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Inspector's Signature Reviewer's Signature

of 25

Photo 1 - Overall looking south.

Photo 2 - East Abutment looking northeast.

Pictures

of 25

Pictures

Photo 3 - Pier 1 looking east.


of 25

Pictures



of 25

Pictures


Photo 14 - Pier 12 looking west.

of 25

Pictures

Photo 15 - Pier 13 looking west.

of 25

UNDERWATER BRIDGE INSPECTION

DEPARTMENT OF TRANSPORTATION

MINNESOTA

Checked By: Scale:

Drawn By: Date:

www.collinsengr.com

(651) 646-8502

St. Paul, MN. 55104

Suite 206

1599 Selby Ave.

Project:

N

SOUNDING PLAN

Pier 9 Pier 8 Pier 7 Pier 6

(See Figure 1)

MA

TC

H

LIN

E

A

(See Figure 3)

MA

TC

H

LIN

E

B

Flo

w

Mississip

pi

River

North Channel

4

2 2 2 2

3 3 3 3

-9.7 -8.2 -8.8-11.6-8.7 -9.7 -9.7 -8.0-12.5 -11.0 -9.7

-5.6

-5.2

-5.8 -5.8

-5.5

-5.7 -7.4

-7.2

-7.4 -8.5

-7.4

-8.7 -6.8

-6.3

-6.9 -7.3

-6.5

-7.2 -7.5

-6.4

-7.1 -8.5

-8.2

-8.1

-13.8-16.6-14.7 -13.7 -8.0-18.5 -13.9 -16.0 -13.1-8.6 -9.5 -8.5-6.0-7.0-13.6

-8.6

-11.5

-15.9

-10.3

-14.4 -17.8 -13.5 -15.8 -11.8 -15.5 -11.2 -17.2

-6.3

-6.3

-6.7 -6.0

-7.2

-7.2 -8.7

-8.9

-7.4

-7.2

-8.2

-9.8

-7.8

-7.7 -8.4

-8.6

-9.2 -8.3

-9.7

-7.9 -9.5 -9.6 -9.5

Legend

Timber Debris

-2.0

-5.2 Sounding Depth from Waterline (08/16/12)

Refer to Figure 1 for General Notes.

Note:

INSPECTION AND SOUNDING PLAN

DISTRICT 6, WINONA COUNTY

OVER THE NORTH CHANNEL OF THE MISSISSIPPI RIVER

STRUCTURE NO. 4260

MJS

RAF

9687

11/30/2016

1"=50'

Figure No.:2

-10.7 -10.8 -10.7 -10.2 -10.9 -10.6

-10.8 -10.5

-9.4 -11.3 -11.9 -10.1 -10.2 -12.2 -10.7 -13.7 -10.7 -11.1 -10.9

-11.2

-10.1

-10.2

-10.7

-14.1 -13.3 -13.9 -14.2 -14.1 -13.6 -14.2 -13.8

-0.5 VFE-2.0 VFE

-1.0 VFE

-4.5 VFE

-2.5 VFE

-1.5 VFE

-3.0 VFE

-1.0 VFE

-1.0 VFE

-2.0 VFE-2.5 VFE

-0.5 VFE

and no exposed steel.

6 inches above to 2 foot below the waterline with up to 6 inches of penetration

Pier 9 exhibited an area of section loss on the downstream south corner from 4

with it.

widespread throughout all piers. Cracking often has efflorescence associated

and horizontal hairline cracks were also observed on the concrete shaft surfaces

penetrations of 1 inch and maximum penetrations of up to 6 inch. Random vertical

scaling from 1 foot above the waterline to 1 feet below the waterline with typical

3 The submerged concrete was typically in satisfactory condition with moderate

footing typically exhibited rough surfaces with up to 3 inch maximum penetration.

to top of footing or to no lower than 3 feet below top of footing. The concrete

It was observed around the entire perimeter of all piers typically extending

typically 1 to 2 feet in diameter with a maximum diameter of up to 3 feet.

2 The channel bottom of Piers 1 through 12 consisted of riprap

INSPECTION NOTES:

Sounding Depth from Waterline (11/30/16)

of 25



MINNESOTA

Checked By: Scale:

Drawn By: Date:

www.collinsengr.com

(651) 646-8502

St. Paul, MN. 55104

Suite 206

1599 Selby Ave.

Project:

UPSTREAM FASCIA PROFILE

DOWNSTREAM FASCIA PROFILE

(See Figure 5)

MA

TC

H

LIN

E

C

Shoreline

~ Pier 12 ~ Pier 11 ~ Pier 10 ~ Pier 9 ~ Pier 8

~ Pier 7

Reference 100.0

@ Springline Pier 1

(See Figure 5)

MA

TC

H

LIN

E

C


~ Pier 7

Reference 100.0

@ Springline Pier 1

120.0

80.0

60.0

40.0

120.0

80.0

60.0

40.0

Vertical Scale: 1" = 50'-0"

~ Pier 13

~ Pier 13

W.L. El. 94.1

on 08/16/12

Channel Bottom

on 08/16/12

Channel Bottom


Note:


UPSTREAM AND DOWNSTREAMFASCIA PROFILES



STRUCTURE NO. 4260

MJS

RAF

9687

11/30/2016

1"=50'

Figure No.:4

Legend

Channel Bottom per 2012 Inspection

Channel Bottom per 2016 Inspection

Shoreline

W.L. El. 94.1

on 11/30/16

Channel Bottom

on 11/30/16

Channel Bottom

of 25



MINNESOTA

Checked By: Scale:

Drawn By: Date:

www.collinsengr.com

(651) 646-8502

St. Paul, MN. 55104

Suite 206

1599 Selby Ave.

Project:

UPSTREAM FASCIA PROFILE

DOWNSTREAM FASCIA PROFILE

(See Figure 4)

MA

TC

H

LIN

E

C

~ Pier 7


Shoreline

Reference 100.0

@ Springline Pier 1

(See Figure 4)

MA

TC

H

LIN

E

C

~ Pier 7


@ Springline Pier 1

Reference 100.0

120.0

80.0

60.0

40.0

80.0

60.0

40.0

120.0



~ Pier 1

~ Pier 1

W.L. El. 94.1

on 08/16/12

Channel Bottom

on 0816/12

Channel Bottom


Note:


Note:




STRUCTURE NO. 4260


MJS

RAF

9687

11/30/2016

1"=50'

Figure No.:5

Shoreline

W.L. El. 94.1

on 11/30/16

Channel Bottom

on 11/30/16

Channel Bottom

of 25

BRIDGE # MUN 154 over N CHANNEL MISS RIVERMUN 154 over N CHANNEL MISS RIVER Minnesota Structure...

Documents

Transcript of BRIDGE # MUN 154 over N CHANNEL MISS RIVERMUN 154 over N CHANNEL MISS RIVER Minnesota Structure...