BRIDGE # MUN 33C(BRDG ST) over CROW RIVER...NBR ELEMENT NAME INSP. DATE QUANTITY QTY CS 1 QTY CS 2...

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:

27639

MUN 33C(BRDG ST) over CROW RIVER

Metro Hennepin Rockford

11/15/2016

Owens, Garrett

Garrett Owens

City or Municipal Highway AgencyOwner:

MinnesotaSTATE:

UNDERWATER SUMMARY 3

UNDERWATER INSPECTION 4

UNDERWATER INSPECTION PROCEDURES 6

STRUCTURE INVENTORY 7

ELEMENTS 8

PICTURES 12

DRAWINGS 16

TABLE OF CONTENTS

PAGE NUMBER

Contractor:

(A) Monitor the scour depression at Pier 2 during future inspections.

(B) Remove timber debris accumulation at Pier 3.

(C) Reinspect the submerged substructure units at the normal maximum recommended (NBIS) interval of sixty (60) months.

Collins Engineers, Inc.

9687Contractor Job Number:

RECOMMENDATIONS

REPORT SUMMARY

UNDERWATER INSPECTION

The substructure units inspected at Bridge No. 27639, Piers 1, 2 and 3, were sound and in good condition with no structurally significant defects observed. A minor scour depression was observed at the upstream end of Pier 2. The channel bottom appeared stable with no conditions of concern at this time. A heavy accumulation of timber debris was located at the upstream nose of Pier 3.

(A) The concrete of the piers was smooth and sound with no significant deterioration.

(B) A scour depression 2 feet in radius by 1.5 feet deep was observed at the upstream end of Pier 2.

(C)) Heavy accumulation of timber debris consisting of logs and branches up to 14" in diameter was observed at the upstream nose of Pier 3. The debris extended 10 feet upstream of the upstream nose, extending from channel bottom to 4 feet above the water line. The debris extended from the pier to the shoreline completely obstructing the channel flow.

INSPECTION FINDINGS

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The top of the pier cap at the downstream end of Pier 2.Water Level Reference:

WATERLINE DATUM

Waterline Elevation (feet):

The waterline was approximately 18.4 feet below reference.Description:

897.5

4.

Piers 1, 2 and 3Substructure(s) Inspected:

SUBSTRUCTURE INSPECTION DATA

General Shape:

5.8Maximum Water Depth at Substructure(s) Inspected (feet):

The piers are single stem hammerheads with oblong shafts and rounded ends supported by a rectangular footing/seal combination founded on concrete piles.

Code:Item 62: Culvert:

6

Y 48 11/2016Code:Item 92B: Underwater Inspection:

Code:

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

NBIS CODING INFORMATION5.

Item 60: Substructure:

Item 61: Channel and Channel Protection:

7Code:

MetroDistrict:

MUN 33C(BRDG ST)

County:

The bridge consists of a continuous four span multiple steel girder superstructure supporting a reinforced concrete deck. The superstructure is supported by two reinforced concrete abutments and three reinforced concrete piers. The piers are numbered 1 through 3 starting from the northwest end of the bridge. The pier footings are founded on concrete piles.

Bridge Description:

027 - Hennepin

Facility Carried:

BRIDGE DATA1.


Bridge #:

CROW RIVERFeature Intersected:

27639

Underwater Visibility (feet):

Sunny, 48°FWeather Conditions:

1.0

3.

2.5Waterway Velocity (ft/sec):

11/15/2016

Professional Engineer/Team Leader:

INSPECTION DATA2.

Garrett R. Owens, P.E.

Date of Underwater Inspection:

Jacob GreenInspection Diver:

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885 Scour 1 1EA

STRUCTURAL ELEMENT CONDITION RATING

Conditions

6.

I

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

Item 113: Scour Critical Bridge: Code:

No (Mark your selection with an X)Yes X

210

CS3 CS4

Reinforces Concrete Pier Wall 6666 LF

CS2ELEM # Unit CS1Element Description Quantity

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The routine underwater inspection of Bridge 27639 (Bridge Street over the Crow River) was completed on November 15, 2016. The underwater inspection was conducted from a 14 ft 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 three reinforced concrete piers. According to the bridge inventory or design drawings, Piers 1 - 3 were founded on reinforced concrete footings supported by piles. Inspection procedures followed FHWA guidance and the MnDOT Bridge and Structure Inspection Program Manual with channel bottom probing to search for foundations. The routine underwater inspection frequency is recommended to remain at a maximum of 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


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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.

11/15/2016

Barrel Length

335.1 ft. Navigation Control

Waterway Opening (sf.) 5238Structure Length

ft. Year Painted 1984

0 - No nav. control on waterwayDeck Width (Out-to-Out) 46.3

+ P A I N T +

APPR: 0 TOTAL:5 - Not eligible

MAIN: 4

Main Span Length 105.0 ft.Drainage Area (sq. mi.) 2520.0

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

1 - MEETS STANDARDS+ M I S C.

Appr. Span Type Structure Flared

GR Termini 0 - SUBSTANDARD

Appr. Guardrail

Main Span Type 4 - Steel Continuous Median Width On Bridge

ft. Bridge Railing 1 - MEETS STANDARDS

1 - MEETS STANDARDS

Main Span Design 01 - Beam Span

ft. GR Transition

Skew 3 RIGHT

Y/N Freq Date

Abutment Foundation (Material/Type)

1 - CONC Frac. Critical

4 - Bolted

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

0 - No flare+ I N

Appr. Span Detail Field Conn. ID

Parallel Structure N - No parallel structure

Pier Protection

0 - Not Required

Rating Date 12/1/198410721 sq. ft. Traffic

ft. 50B. Rt 6.00Sidewalk Width 50A. Lt 6.00

Roadway Area (Curb-to-Curb)

Posted Load 0 - Not Required

PostingStructure Area (Out-to-Out) 15515 sq. ft.

DBL:VEH: SEMI:

Rt 27 ARail Type Lt 27 C N - N/AN - N/A B N - N/A

N - Not Applicable Overweight Permit CodesCurb Height Lt

ft. Horizontal 0 - Not Required

0.83 ft. Vertical0.83 ft. Rt

Wear Surf Install Year

21750 sq. ft. Nav. Vert. Lift Bridge Clear. (ft.)

I - LOW RISK Year 1991Primer Type 6 MN Scour Code

Painted Area

Unsound Paint % Nav. Clr. (ft.)

_

Deck Material 1 - Concrete Cast-in-Place 0.0Wear Surf Type 1 - Monolithic Concrete

(concurrently placed with stru

Vert. 0.0 Horiz.

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

1 - Epoxy Coated Reinforcing + B R I D G E

Inventory Rating 2 - HS TRUCK 18.7

32.3Deck Rebars Install Year 1984

Deck Rebars

Finish Type K - Unpainted 3309 SteelWear Course/Fill Depth 0.00 ft.

0 - None

Design Load 5 - HS 20

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

45 ° 5

Inspector Name Owens, Garrett

Latitude Control Section (TH Only) Status' 16.24 ''

2 - 2-way traffic

Routine Inspection Frequency 24

Sect., Twp., Range

0.1 MI W OF JCT CSAH 50 Level of Service 1 - MAINLINE

- 24W Roadway Type29 - 119N

Detour Length 1.0 mi.R A T I N G S +

Custodian 04 - City or Municipal Highway Agency

Owner 04 - City or Municipal Highway Agency

Deck 6 Unsound Deck %

C O N D I T I O N° 43 '

A - Open

Longitude 93 000+00.140 + N B I 58.15 '' Reference Point

Crew

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

Agency Br. No. 67

District 05

Bridge Match ID (TIS) 0 Userkey

MUN 33C(BRDG ST) over CROW RIVER

Minnesota Structure Inventory Report

Bridge ID: 27639

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

Date: 01/31/2017

Sufficiency Rating 91.9Roadway Name or Description

33C

City Rockford

Routine Inspection Date 06/16/2016

Desc. Loc.

Township MUN 33C

Number

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

NRoute Sys 10 - MUNCounty 027 - Hennepin Functionally Obsolete

Lanes

Waterway Adequacy 9Max. Vert. Clear.

ft.Legislative District 19Bft.Potential ABC 2 - N/A ft.

ft.On - Off System Roadway Width 32.00 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 32.0

48.0 ft.

Service Under

ft.

31.9 ft. Approach Alignment 8Horizontal Clear.

ft.

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

HCADT ADTT7

Year Built 1984

MN Year Reconstructed Functional Class

%Channel 6

Substructure

0Superstructure 7

ON 2 UNDER

2575 YEAR 1992BMU Agreement ADT

Structure Evaluation 7If Divided

D I M E N S I O N S +Bridge Plan Location 3 - COUNTY

7/1/1984Deck Geometry 4

NB-EB SB-WBDate Opened to Traffic

+ R D W Y

FHWA Year Reconstructed

MN Temporary Status

09 - Rural - LocalCulvert N

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

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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:

Hennepin

Rockford

119N29 24W

4 - Steel Continuous 2 -Stringer/Multi-beam or Girder

6 7 7 6 N

8 9

0 - Not Required

0 - Not Required

0 - Not Required

N - Not Applicable

I - LOW RISK

0.1 MI W OF JCT CSAH 50

10 - MUN 33C 000+00.140

335.1

46.3

10721 sq. ft. / %

21750 sq. ft. / %

N/A

A - Open

ft.

ft.

Postings:List:

MINNESOTA BRIDGE INSPECTION REPORT

01/31/2017

BRIDGE 27639 MUN 33C(BRDG ST) OVER CROW RIVER

Unofficial Structurally Deficient N

NUnofficial Functionally Obsolete

Unofficial Sufficiency Rating 91.9

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4REPORT TYPE

Reinforced Concrete Deck 11/15/2016 15515 SF 15393 63 59 012 Underwater

06/16/2016 15515 SF 15393 63 59 0Routine

Notes: 12. Numerous minor trans cracks, many w/ efflor. Extensive area of S side cantilever portion of slab is cracked w/ efflor. Vert cracks in Nand S railbases extend into coping. Most of these cracks have efflor. Spall @ expansion joint over E pier on N side. Very few and very minorcracks in end spans. '14-900 LF of mostly trans cracks w/ efflor. Most of the cracks are in the two middle spans. Cracks minor in size. '16-nochange in LF of cracks. Many have heavy efflor & some w/ rust. Delam in S soffit of S4.

510 - Wearing Surfaces 10721 SF 10000 647 74 0

Notes: 510. Cracks in thickened portion(over parapet). '14-some hairline cracks extend from walk into gutter area. '16-No change.

Underwater 11/15/2016

10721 SF 10000 647 74 0Routine 06/16/2016

Steel Open Girder/Beam 11/15/2016 1988 LF 1925 63 0 0107 Underwater

06/16/2016 1988 LF 1925 63 0 0Routine

Notes: 107. Slight sheet rust on top and bottom flange of S fascia. Fascias rusting under railing joints that are loose or missing. Bottom flangeof S girder is scaled in some areas. '14-no change. About 60' of S fascia is scaled. '16-no change.

515 - Steel Protective Coating 21750 SF 21582 78 88 2

Notes: 515. '16-Coating is scaled in many areas, especially on S fascia beam.


21750 SF 21582 78 88 2Routine 06/16/2016

Reinforced Concrete Pier Wall 11/15/2016 66 LF 63 3 0 0210 Underwater

06/16/2016 66 LF 63 3 0 0Routine

Notes: 210. Graffiti on E and W piers. Delam @ plug holes on W face of E pier. '10-Tree debris against E pier. '14-no change. Tree debris stillagainst E pier. '16-No change.

Reinforced Concrete Abutment 11/15/2016 124 LF 119 1 4 0215 Underwater

06/16/2016 124 LF 119 1 4 0Routine

Notes: 215. Vert cracks, leakage and shear keys @ both. WEST-horiz cracks in seat. '10-Some debris and wetness on seat in 1st and 2ndbays from the N. Surface finish or paint deteriorating @ SW corner. '16-Large horiz crack & 4 SF delam in 2nd bay from S. Debris & wetness onseat. Small spall in face under 2nd from N. EAST-shear key in contact w/ bearing plate. '14-no change. '16-same.

Wingwall notes:

Reinforced Concrete Pier Cap 11/15/2016 135 LF 130 5 0 0234 Underwater

06/16/2016 135 LF 130 5 0 0Routine

Notes: 234. Minor vert cracking on E face of middle pier, and E and W piers. '14-30 LF of minor vert cracks in each face of P2. 10 LF in W face& 5 LF in E face of P3. '16-Rust stain from exp rebar on E face of P2.

Strip Seal Expansion Joint 11/15/2016 89 LF 46 43 0 0300 Underwater

06/16/2016 89 LF 46 43 0 0Routine

Notes: 300. Joints filled w/ sand. '14-patch in W joint is peeling. '16-E end packed full of dirt. Starting to pull out @ C/L on W end.

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Pourable Joint Seal 11/15/2016 66 LF 0 0 58 8301 Underwater

06/16/2016 66 LF 0 0 58 8Routine

Notes: 301. Joints @ ends of bridge are deteriorated. Pot holes in SW corner. '14-3 SF of spalls in SW corner. '16-Spalls in SW corner are inthe app panel. Material is mostly missing and vegetation growing in areas of joints.

Elastomeric Bearing 11/15/2016 24 EA 24 0 0 0310 Underwater

06/16/2016 24 EA 24 0 0 0Routine

Notes: 310. Monitor N fascia bearing @ W abut. '10-1" out of plumb towards abut. Most on W abut are towards abut-60 deg @ time ofinspection. Abut bearings show signs of exp 1" out of plane long, some trans. '14-no change. '16-same.

Fixed Bearing 11/15/2016 6 EA 6 0 0 0313 Underwater

06/16/2016 6 EA 6 0 0 0Routine

Notes: 313. Bearings @ P2.

Reinforced Concrete Approach Slab 11/15/2016 1600 SF 0 1600 0 0321 Underwater

06/16/2016 1600 SF 0 1600 0 0Routine

Notes: 321. WEST-Popouts and large spall. '14-bit spalled. '16-3 SF full depth spall in EB. Bit spall has been patched. EAST-gutter scaling.'14-Long crack near CL. Bit settled.

Metal Bridge Railing 11/15/2016 669 LF 659 10 0 0330 Underwater

06/16/2016 669 LF 659 10 0 0Routine

Notes: 330. Grout under metal rail base plates cracked w/ some spalls. Metal rail bent +/- 2" from impact near E end of S rail. '14-no change.'16-same.

515 - Steel Protective Coating 1742 SF 0 1742 0 0

Notes: 515. '16-Minor chalking & fading, no rust.


1742 SF 0 1742 0 0Routine 06/16/2016

Reinforced Concrete Bridge Railing 11/15/2016 669 LF 603 66 0 0331 Underwater

06/16/2016 669 LF 603 66 0 0Routine

Notes: 331. Numerous vert cracks in both bases. Bases have rust stains. Some popouts in base. Some cork joints coming out(minor),especially the SE corner from the pier to the abut. '14-no change. '16-Crack spacing avg 10'.

Critical Deficiencies or Safety Hazards 11/15/2016 1 EA 1 0 0 0800 Underwater

06/16/2016 1 EA 1 0 0 0Routine

Notes: 800. No critical structural deficiencies or serious safety hazards are present on this structure.

Concrete Decks - Cracking & Sealing 11/15/2016 740 LF 370 370 0 0810 Underwater

06/16/2016 740 LF 370 370 0 0Routine

Notes: 810. '14-cracks are minor in size & density. '16-Most unsealed cracks are in app panels, some in walks.

Plow Fingers 11/15/2016 1 EA 0 1 0 0815 Underwater

06/16/2016 1 EA 0 1 0 0Routine

Notes: 815. 2 straps missing on W end. '14-no change. '16-same.

Secondary Members (Superstructure) 11/15/2016 1 EA 1 0 0 0855 Underwater

06/16/2016 1 EA 1 0 0 0Routine

Notes: 855. Steel Diaphragms. S diaphragm @ W abut has minor sheet rust @ top and bottom flanges. '14-E abut diaphragm over shear blockhas some sheet rust. '16-No change.

Concrete Shear Cracking 11/15/2016 1 EA 1 0 0 0883 Underwater

06/16/2016 1 EA 1 0 0 0Routine

Notes: 883.


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

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Scour 11/15/2016 1 EA 0 1 0 0885 Underwater

Notes: [2016] Underwater Inspection - A scour depression 2 feet in radius by 1.5 feet deep was observed at the upstream end of Pier 2.

Other Bridge Signing 11/15/2016 1 EA 1 0 0 0891 Underwater

06/16/2016 1 EA 1 0 0 0Routine

Notes: 891. No Jumping Or Diving From Bridge Ord 901-04 signs @ approaches. '14-"No Snowmobiles" in SW. Gas pipeline marker in NW &NE. '16-EB stop ahead @ SE.

Slopes & Slope Protection 11/15/2016 1 EA 0 0 1 0892 Underwater

06/16/2016 1 EA 0 0 1 0Routine

Notes: 892. Grouted rip rap slope paving has some cracks and some settlement @ both abuts. Erosion repair @ W end. '14-no change.'16-Large cracks & settlement in W. Repair in NW is cracked @ bottom.

Guardrail 11/15/2016 1 EA 0 1 0 0893 Underwater

06/16/2016 1 EA 0 1 0 0Routine

Notes: 893. All corners turned down. 2 guardrail blocks are missing @ NW corner. Damage in SW corner. Rail @ NE corner is missing 2blocks; rail @ SE corner is missing 4 blocks. '14- 3 blocks now missing in NW. Post missing in SE. '16-No change.

Deck & Approach Drainage 11/15/2016 1 EA 1 0 0 0894 Underwater

06/16/2016 1 EA 1 0 0 0Routine

Notes: 894. Drain in curb and steel plate over walk @ SE and NE corner of E approach panel. '14-newer walk, curb & CB castings in NE & SE.'16-No change.

Sidewalk, Curb, & Median 11/15/2016 1 EA 1 0 0 0895 Underwater

06/16/2016 1 EA 1 0 0 0Routine

Notes: 895. Numerous trans cracks in both walks. Scaling and small spalls in N curb near center of bridge. Walk settled and scaled @ Eapproach. New walk installed @ W approach. '14-walk @ E approach is OK. '16-No change.

Miscellaneous Items 11/15/2016 1 EA 1 0 0 0899 Underwater

06/16/2016 1 EA 1 0 0 0Routine

Notes: 899. 8" watermain encased in 2.5" urethane insulation and 3" gas line are hanging from slab in N bay. Watermain PVC covering has a 2"separation @ W end that needs repair. Watermain hanger out of contact near W abut. 1' X 1' metal box(for hydraulics?) attached to N face of Nrailbase in 2nd span. Sanitary MH near SE corner. Elevation benchmark in SE and SW corner. No lane striping on deck. Graffiti on E ends ofgirders, E wingwalls and a lot on both abuts. '16-Heavy graffiti on both abuts.

Protected Species 11/15/2016 1 EA 0 1 0 0900 Underwater

06/16/2016 1 EA 0 1 0 0Routine

Notes: 900. '16-Swallows.

General Notes: *Bridge 27639 Bridge St (Rockford)/Crow River 6/16/16 PTH, JDE & WJM. 60' snooper over S side. Flaggers for single lane.

Recommended Repairs:

107/210/215. Remove graffiti from beams, piers and abuts.215. Repair large crack in west abutment.300. Flush strip seal joints.301. Repair both poured joints. Reconstruct 8' section in SW corner.321. Repair large spalls @ W approach panel & seal cracks.330. Repair bent metal railing on north side.815. Replace missing plowstraps on W end.893. Repair damaged guardrail and posts and replace missing spacer blocks.895. Seal cracks in walk.899. Repair watermain covering separation @ W end. Check for rust on main before repairing cover.899. Remove vegetation @ wingwalls. Cut trees within 10' of bridge at all 4 corners for snooper access.899. Remove debris from channel (E span).

58. Deck NBI:

36A. Brdg Railings NBI:

36B. Transitions NBI:

Quantity of underside cracks w/ efflor.


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

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QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Inspector's Signature Reviewer's Signature

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:

Tree debris at east pier is slightly restricting the channel.[2016] Underwater Inspection - Timber debris accumulation at Pier 3 completely restricting channel in Span 4.

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Photo 1 - Upstream Elevation Looking North

Photo 2 - Downstream Elevation Looking South

Pictures

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Pictures

Photo 3 - View of West Shoreline Looking Northwest

Photo 4 - Typical View of Pier 1 Looking Southwest

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Pictures

Photo 5 - Typical View of Pier 2 Looking Southwest

Photo 6 - Typical View of Pier 3 Looking Southeast

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Pictures

Photo 7 - View of East Shoreline Looking Northeast

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BRIDGE # MUN 33C(BRDG ST) over CROW RIVER...NBR ELEMENT NAME INSP. DATE QUANTITY QTY CS 1 QTY CS 2...

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Transcript of BRIDGE # MUN 33C(BRDG ST) over CROW RIVER...NBR ELEMENT NAME INSP. DATE QUANTITY QTY CS 1 QTY CS 2...