BRIDGE # CSAH 30 over RED RIVER OF THE NORTHThe routine underwater inspection of Bridge 84508 (CSAH...

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:

84508

CSAH 30 over RED RIVER OF THE NORTH

District 4 Wilkin WOLVERTON

07/27/2016

Full Body Harness, UB-30, Non-destructive TestingEquipment - Ultrasonic portable flaw detector, 5 Mhz .5"diameter normal beam transducer

Schroeder, Brian

Brian Schroeder

County Highway AgencyOwner:

MinnesotaSTATE:

UNDERWATER SUMMARY 3

UNDERWATER INSPECTION 4

UNDERWATER INSPECTION PROCEDURES 6

STRUCTURE INVENTORY 7

ELEMENTS 8

PICTURES 12

FIGURE 1 17

FIGURE 2 18

TABLE OF CONTENTS

PAGE NUMBER

Contractor:

(A) Monitor the timber debris, and if found to be increasing in the future, removal operations may become warranted.

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

Ayres Associates & Collins Engineers, Inc.

9687Contractor Job Number:

RECOMMENDATIONS

REPORT SUMMARY

UNDERWATER INSPECTION

The substructure unit inspected at Bridge No. 84508, Piers 1 and 2 were found to be in good condition with no significant structural defects observed. The channel bottom appeared stable with no significant scour and with no appreciable changes since the previous inspection.

(A) There was a timber debris located along the upstream nose of Pier 1 extending 15 feet east of the nose to the West shoreline.

(B) Steel I-beams with scattered debris hung up within them were observed extending from the channel bottom to 1 feet above the waterline, along the East face of Pier 2 to the shoreline.

INSPECTION FINDINGS

The top of the pier cap on the south end of Pier 1.Water Level Reference:

WATERLINE DATUM

Waterline Elevation (feet):

The waterline was approximately 20.3 feet below reference.Description:

898.3

4.

Pier 1 and Pier 2Substructure(s) Inspected:

SUBSTRUCTURE INSPECTION DATA

General Shape:

7.0Maximum Water Depth at Substructure(s) Inspected (feet):

The piers each consist of a rectangular shaft with rounded ends and a hammerhead cap founded on a rectangular footing supported by piles.

Code:Item 62: Culvert:

6

Y 48 07/2016Code: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:

District 4District:

CSAH 30

County:

The superstructure consists of three spans of multiple steel beams. The superstructure is supported by two reinforced concrete abutments and two reinforced concrete piers. The footings of both the abutments and piers are supported by steel H-piles. The piers are numbered 1 and 2 starting from the west.

Bridge Description:

084 - Wilkin

Facility Carried:

BRIDGE DATA1.


Bridge #:

RED RIVER OF THE NORTHFeature Intersected:

84508

Underwater Visibility (feet):

Sunny, 68°FWeather Conditions:

0.5

3.

0.5Waterway Velocity (ft/sec):

07/27/2016

Professional Engineer/Team Leader:

INSPECTION DATA2.

Brian K. Schroeder, P.E.

Date of Underwater Inspection:

Brian K. Schroeder, P.E.Inspection Diver:

885 Scour 1 EA 1

STRUCTURAL ELEMENT CONDITION RATING

Conditions

6.

R

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

205

CS3 CS4

Reinforced Concrete Column 22 EA

CS2ELEM # Unit CS1Element Description Quantity

The routine underwater inspection of Bridge 84508 (CSAH No. 30 over the Red River Of the North) was completed on July, 27, 2016. The underwater inspection was conducted from shore. 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 two reinforced concrete piers. According to the bridge inventory or design drawings, Pier 1 and Pier 2 are founded on steel H-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 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


S - Pin and Hanger 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

07/28/2015

Underwater Y 60Culvert Type 3 - FTG PILE

Pinned Asbly. 60

07/27/2016

Barrel Length

265.2 ft. Navigation Control

Waterway Opening (sf.) 3480Structure Length

ft. Year Painted 1975

0 - No nav. control on waterwayDeck Width (Out-to-Out) 35.8

+ P A I N T +

APPR: 0 TOTAL:5 - Not eligible

MAIN: 3

Main Span Length 100.0 ft.Drainage Area (sq. mi.) 6580.0

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 1 - MEETS STANDARDS

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 0

Y/N Freq Date

Abutment Foundation (Material/Type)

1 - CONC Frac. Critical

2 - Riveted

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 04/01/20148482 sq. ft. Traffic

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

Roadway Area (Curb-to-Curb)

Posted Load 0 - Not Required

PostingStructure Area (Out-to-Out) 9494 sq. ft.

DBL:VEH: SEMI:

Rt 03 ARail Type Lt 03 C N - N/AN - N/A B N - N/A

N - Not Applicable Overweight Permit CodesCurb Height Lt

ft. Horizontal 1 - Object Markers

0.50 ft. Vertical0.50 ft. Rt

Wear Surf Install Year

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

R - CRIT - MONITOR

Year 2011Primer Type 1 - Lead - non 3309 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

0 - None + B R I D G E

Inventory Rating 2 - HS TRUCK 14.8

24.8Deck Rebars Install Year

Deck Rebars

Finish Type F - - Phenolic Resin AlumWear 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

46 ° 34

Inspector Name Schroeder, Brian

Latitude Control Section (TH Only) Status' 20.46 ''

2 - 2-way traffic

Routine Inspection Frequency 24

Sect., Twp., Range

ON WEST COUNTY LINE Level of Service 1 - MAINLINE

- 48W Roadway Type29 - 136N

Detour Length 14.0 mi.R A T I N G S +

Custodian 02 - County Highway Agency

Owner 02 - County Highway AgencyDeck 7 Unsound

Deck %

C O N D I T I O N° 45 '

A - Open

Longitude 96 000+00.000 + N B I 9.37 '' Reference Point

Crew

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

Agency Br. No. 124

District 04

Bridge Match ID (TIS) 0 Userkey

CSAH 30 over RED RIVER OF THE NORTH

Minnesota Structure Inventory Report

Bridge ID: 84508

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

Date: 08/11/2016

Sufficiency Rating 91.4Roadway Name or Description

30

City

Routine Inspection Date 10/26/2015

Desc. Loc.

Township 84022 - WOLVERTON CSAH 30

Number

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

NRoute Sys 04 - CSAHCounty 084 - Wilkin Functionally Obsolete

Lanes

Waterway Adequacy 8Max. Vert. Clear.

ft.Legislative District 09Bft.Potential ABC 2 - N/A ft.

ft.On - Off System Roadway Width 32.00 ft.

Vertical Clearance ft.1 - ON

Underclearances N

Service On 1 - Highway Appr. Surface Width+ S A F E T Y F E A T U R E S +

5 - Waterway Bridge Roadway Width 32.0

34.0 ft.

Service Under

ft.

ft. Approach Alignment 8Horizontal Clear.

ft.

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

HCADT ADTT7

Year Built 1974

MN Year Reconstructed Functional Class

%Channel 5

Substructure

0Superstructure 6

ON 2 UNDER

699 YEAR 2008BMU Agreement ADT

Structure Evaluation 6If Divided

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

7/1/1975Deck Geometry 6

NB-EB SB-WBDate Opened to Traffic

+ R D W Y

FHWA Year Reconstructed

MN Temporary Status

07 - Rural - Major CollectorCulvert N

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

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:

Wilkin

84022 - WOLVERTON

136N29 48W

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

7 6 7 5 N

8 8

0 - Not Required

1 - Object Markers

0 - Not Required

N - Not Applicable

R - CRIT - MONITOR

ON WEST COUNTY LINE

04 - CSAH 30 000+00.000

265.2

35.8

8482 sq. ft. / %

sq. ft. / %

N/A

A - Open

ft.

ft.

Postings:List:

MINNESOTA BRIDGE INSPECTION REPORT

01/09/2017

Inspector: CO Bridge

BRIDGE 84508 CSAH 30 OVER RED RIVER OF THE NORTH

Unofficial Structurally Deficient N

NUnofficial Functionally Obsolete

Unofficial Sufficiency Rating 91.4

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4REPORT TYPE

Reinforced Concrete Deck 08/11/2016 9494 SF 9304 0 190 012 Underwater

9494 SF 9304 0 190 0Migrated Values

Notes:

510 - Wearing Surfaces 8482 SF 8312 0 170 0

Notes: Top of Concrete Deck with Uncoated Rebar Notes: minor cracks in deck2015 - condition unchanged, efflorescence on deck bottom.

Underwater 08/11/2016


Steel Open Girder/Beam 08/11/2016 1591 LF 1114 477 0 0107 Underwater

1591 LF 1114 477 0 0Migrated Values

Notes: 2015 Cracks in weld joining the stiffner tab plate to the bottom girder flange were found in following locations. Span 1 - Girder 2 stiffner 1north side, Girder 2 Stiffner 2 south side, Girder 3 Stiffner 2 south side. Span 2 - Girder 1 Stiffner 2 North side, Gieder 6 Stiffner. Span 3 Girder 2Stiffner1 south side, Girder 2 Stiffner 2 south side and Girder 6 Stiffner 2 South side. As reported in Mn/Dot inspection 07/28/2015

515 - Steel Protective Coating 999 SF 699 0 300 0

Notes: [2016] Migrator assumed quantity of 999 SF and estimated the condition states.



Steel Pin and Pin & Hanger Assemblyor both

08/11/2016 12 EA 0 12 0 0161 Underwater

12 EA 0 12 0 0Migrated Values

Notes: Element added in 2015. 11 in CS2 for minor paint deterioration and surface corrosion, 1 in CS3 due to 3 of the 4 nuts have missing orbroken cotter pins.

515 - Steel Protective Coating 999 SF 0 0 916 83

Notes: [2016] Migrator assumed quantity of 999 SF and estimated the condition states.



Reinforced Concrete Column 08/11/2016 2 EA 2 0 0 0205 Underwater


Notes:

Reinforced Concrete Abutment 08/11/2016 112 LF 112 0 0 0215 Underwater


Notes: [2016] Migrator added 40 LF to abutment quantity to account for wingwalls (CS1:40 CS2:0 CS3:0 CS4:0).

Wingwall notes:

Reinforced Concrete Pier Cap 08/11/2016 72 LF 72 0 0 0234 Underwater


Notes:

Pourable Joint Seal 08/11/2016 108 LF 108 0 0 0301 Underwater


Notes:

Assembly Joint without Seal 08/11/2016 121 LF 60 0 0 61305 Underwater


Notes: LOOSE SCREWS AND SCREWS SHEARED OFF2014 - ND side damaged by plows.2015 - Condition unchanged

Movable Bearing 08/11/2016 18 EA 13 5 0 0311 Underwater


Notes: 18 TOTAL MOVEABLE BEARINGS, 13 IN CS1 & 5 IN CS2, ACTIVE CORROSION ON 3 BEARINGS EAST ABUTMENT & 2BEARINGS IN WEST ABUTMENT

Fixed Bearing 08/11/2016 6 EA 5 1 0 0313 Underwater


Notes: 6 TOTAL FIXED BEARINGS, 5 IN CS1 & 1 IN CS2, ACTIVE CORROSION ON BEARING 6 PIER 2

Reinforced Concrete Bridge Railing 08/11/2016 531 LF 531 0 0 0331 Underwater


Notes:

Critical Deficiencies or Safety Hazards 08/11/2016 1 EA 1 0 0 0800 Underwater


Notes: NO CRITICAL FINDINGS OBSERVED DURING THE LAST INSPECTION.

Concrete Decks - Cracking & Sealing 08/11/2016 0 LF 0 0 0 0810 Underwater


Notes:

Bituminous Approach Roadway 08/11/2016 1 EA 1 0 0 0822 Underwater


Notes:ND side the Bituminous shows rutting on the approach (2012 same)2013 same if not worse2015 - Both approaches were paved in the previous year.

Steel Cracking 08/11/2016 1 EA 0 0 1 0882 Underwater


Notes:

Concrete Shear Cracking 08/11/2016 1 EA 1 0 0 0883 Underwater


Notes: Use this element to monitor the presence of shear cracking on concrete elements. Pay particular attention to the concrete pier caps.

Substructure Settlement & Movement 08/11/2016 1 EA 0 1 0 0884 Underwater


Notes:


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Scour 08/11/2016 1 EA 1 0 0 0885 Underwater


Notes: R - Scour critical. Monitoring required.

Other Bridge Signing 08/11/2016 1 EA 1 0 0 0891 Underwater


Notes:

Slopes & Slope Protection 08/11/2016 1 EA 0 0 0 1892 Underwater


Notes: 2013 downstream ND side big slough in the river

Guardrail 08/11/2016 1 EA 1 0 0 0893 Underwater


Notes:

Deck & Approach Drainage 08/11/2016 1 EA 1 0 0 0894 Underwater


Notes: Use this element to rate the condition, function, and adequacy of the drainage system.

Sidewalk, Curb, & Median 08/11/2016 1 EA 1 0 0 0895 Underwater


Notes:

Protected Species 08/11/2016 1 EA 1 0 0 0900 Underwater


Notes: Use this element to track the presence of protected species living on this structure.

General Notes: 2012 - bank continues to erode ND side. Bolts in expansion plate on ND side need attention as does the approach. 2010 -Inspected by Mn/DOT 10/26/2010 ND side bank up & down stream sliding into river. 2009 - ND side up & downstream bank iseroding to point of undermining west abutment. 2006 - Bridge approach ND side needs asphalt patching. Expansion plate onND side. 2005 - INSPECTED BY MN/DOT 6/29/2005 ALSO, PLATES ON MN SIDE OK, PLATES ON ND SIDE NEED TO BEREPLACED, SETTLEMENT BEHIND ABUTMENT ON ND SIDE WEST END EXPANSION PLATE NEEDS TO BETIGHTENED, OR REPLACED PONTIS inspection comments - EXPANSION PLATE ON E END OF BRIDGE WASREPLACED IN 2002 WEST PLATE NEEDS TO BE REPLACED ND SIDE PONTIS inspection comments - *N SIDE SEC29-T136N-R48W 8 WELD CRACKED IN THE PLATE WELDED TO THE LOWER FLANGE OF DIAPHRAM GUSSET ON:BEAM 2 @ 3RD DIAPHRAM EAST OF SEAT 2 N FACIA BEAM @ 3RD DIAPHRAM W OF SEAT 2 ON S FLANGE BEAM 1@ 2ND DIAPHRAM E OF PIER 1 ON N FLANGE BEAM 3 @ 2ND DIAPHRAM W OF PIER 1 ON S FLANGE WELD BROKEON THE BOTTOM OF THE DIAPHRAM GUSSET ON: BEAM 1 1ST DIAPHRAM E OF PIER 2 ON N FLANGE N FACIABEAM 2ND DIAPHRAM W OF PIER 2***AMENDED 2000 - BEAM 1 @ 2ND DIAPHRAGM W OF PIER 1 ON N FLANGE,BEAM 2 @ 2ND DIAPHRAGM W OF PIER 1 ON S FLANGE, BEAM 6 @ 2ND DIAPHRAGM E OF PIER 2, AND BEAM 2 @3RD DIAPHRAGM W OF PIER. BEAM 5 SPAN 3, THE EAST END OF THE COVER PLATE HAS A WELD FABRICATIONDEFECT (LACK OF FUSION) 1/2 INCH LONG************ COTTOR PINS ARE MISSING IN THE UPPER & LOWER NUTSOF THE PINS ON THE S SIDE OF BEAM 3 ON THE CANTALEVER OF PIER 2

2011 - Excessive movement of bank on ND side of bridge.

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:

minor cracks in deck2015 - condition unchanged, efflorescence evident on botom of deck.

Bank slid into river either side of bridge on ND side.2013 downstream ND slid into river.2014 ND side continues to slide into river channel


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Inspector's Signature Reviewer's Signature

Inventory Notes:

61. Channel NBI:

62. Culvert NBI:

71. Waterway Adeq NBI:

72. Appr RoadwayAlignment NBI:

Bank slid into river either side of bridge on ND side.2013 downstream ND slid into river.2014 ND side continues to slide into river channel

ND side road is very rough

Photo 1 - View Upstream, Looking South.

Photo 2 - View Downstream, Looking North.

Pictures

Pictures

Photo 3 - View East Abutment, Looking East.

Photo 4 - View Pier 2 West Face, Looking East.

Pictures

Photo 5 - View Pier 1 East Face, Looking West.

Photo 6 - View Structure, Looking South.

Pictures

Photo 7 - View Structure, Looking Northeast.

Photo 8 - View Pier 1 West Face, Looking East.

Pictures

Photo 9 - View West Abutment, Looking West.

Photo 10 - View Pier 2 East Face, Looking West.

BRIDGE # CSAH 30 over RED RIVER OF THE NORTHThe routine underwater inspection of Bridge 84508 (CSAH...

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