bridge # msas 105(ctr st) over zumbro river...16402 sq. ft. / % n/a a - open ft. ft. list: postings:...

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:

55517

MSAS 105(CTR ST) over ZUMBRO RIVER

District 6 Olmsted Rochester

06/15/2016

Forsyth, Roy

Roy Forsyth

City or Municipal Highway AgencyOwner:

MinnesotaSTATE:

UNDERWATER SUMMARY 3

UNDERWATER INSPECTION 4

UNDERWATER INSPECTION PROCEDURES 6

STRUCTURE INVENTORY 7

ELEMENTS 8

PICTURES 12

DRAWINGS 15

TABLE OF CONTENTS

PAGE NUMBER

Contractor:

(A) 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 below water at Bridge No. 55517, East and West Abutments and Piers 1 and 2, were found to be in good condition with no defects of structural significance observed. The channel bottom appeared to be stable, and the scourprotection system in-place around the substructure units was in good condition.

(A) An area of poor consolidation was located 1 foot above the waterline along a joint at the upstream end of the West Abutment that measured 1 foot in diameter with up to 6 inches of penetration.

(B) The concrete was typically smooth and sound with random minor areas of poor consolidation with up to 1 inch of penetration. A sloped concrete scour protection encased both piers from 2.3 foot below the waterline to the channel bottom, and was typically in good condition.

(C) Three steel beams spaced at 6-foot centers were embedded in the concrete pier shafts near the waterline at both the upstream and downstream ends of Piers 1 and 2.

(D) A vertical hairline crack extended from the bottom of the pier cap to the channel bottom at the downstream west quarter-point of Pier 2.

(E) The channel bottom material consisted of sandy silt with up to 6 inches of probe rod penetration.

INSPECTION FINDINGS

Page 3 of 16

WATERLINE DATUM4.

6.2

Water Level Reference:

975.4Waterline Elevation (feet):

The top of the pier cap at the north end of Pier 1.

Substructure(s) Inspected:

SUBSTRUCTURE INSPECTION DATA3.

East and West Abutments and Piers 1 and 2

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

The piers consist of oblong rectangular shafts with a pointed upstream end and a rounded downstream end that are supported by rectangular footings that are founded on steel H-piles. The abutments consist of solid vertical walls with perpendicular wingwalls. A sloped concrete scour-protection apron surrounds each of the piers and extends along both abutments.

General Shape:

Code:Item 61: Channel and Channel Protection:

7

9

Code:Item 62: Culvert:

5.

The waterline was approximately 13.0 feet below reference. Description:

NBIS CODING INFORMATION

Code:Item 60: Substructure:

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

None/Negligible

District:

MSAS 105(CTR ST)Facility Carried:

District 6

Bridge Description:

055 - OlmstedCounty:

BRIDGE DATA1.


Bridge #:

ZUMBRO RIVERFeature Intersected:

55517

Weather Conditions:

06/15/2016Date of Underwater Inspection:

Waterway Velocity (ft/sec):

1.0 ftUnderwater Visibility (feet):

INSPECTION DATA2.

The superstructure consists of three spans of multiple steel stringers supporting a reinforced concrete deck. The bridge is supported by two reinforced concrete abutments and two reinforced concrete piers, which are founded on steel piles. The piers are numbered 1 and 2 from the west to east.

Professional Engineer/Team Leader:

Roy A. ForsythInspection Diver:

Roy A. Forsyth

Page 4 of 16

885 Scour 11 EA

215

1

143 1LFReinforced Concrete Abutment 144

STRUCTURAL ELEMENT CONDITION RATING6.

No (Mark your selection with an X)

Item 113: Scour Critical Bridge: Code:

Y 48 06/2016Item 92B: Underwater Inspection: Code:

Yes X

P

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

CS4CS3CS1 CS2

LF 99100210 Reinforced Concrete Pier Wall

Conditions

Quantity UnitElement DescriptionELEM #

Page 5 of 16

The routine underwater inspection of Bridge 55517 (East Center Street/MSAS 105 over the Zumbro River) was completed on June 15, 2016. The underwater inspection was conducted from 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 2 reinforced concrete pier walls and 2 reinforced concrete abutments. According to the bridge inventory or design drawings, Piers 1 and 2 and the East and West Abutments were 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 bottom 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


Page 6 of 16

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.

06/15/2016

Barrel Length

225.2 ft. Navigation Control

Waterway Opening (sf.) 3477Structure Length

ft. Year Painted 1993

0 - No nav. control on waterwayDeck Width (Out-to-Out) 62.0

+ P A I N T +

APPR: 0 TOTAL:5 - Not eligible

MAIN: 3

Main Span Length 82.5 ft.Drainage Area (sq. mi.) 239.7

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

0 - SUBSTANDARD+ M I S C.

Appr. Span Type Structure Flared

GR Termini N - NOT REQUIRED

Appr. Guardrail

Main Span Type 4 - Steel Continuous Median Width On Bridge

ft. Bridge Railing 1 - MEETS STANDARDS

0 - SUBSTANDARD

Main Span Design 01 - Beam Span

ft. GR Transition

Skew 30 LEFT

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 05/06/20169914 sq. ft. Traffic

ft. 50B. Rt 7.80Sidewalk Width 50A. Lt 7.80

Roadway Area (Curb-to-Curb)

Posted Load 0 - Not Required

PostingStructure Area (Out-to-Out) 13962 sq. ft.

DBL:VEH: SEMI:

Rt 17 ARail Type Lt 17 C 2 - Straddle 2 Lanes

1 - No Restriction

B 1 - No Restriction

N - Not Applicable Overweight Permit CodesCurb Height Lt

ft. Horizontal 0 - Not Required

0.75 ft. Vertical0.75 ft. Rt

Wear Surf Install Year 1992

16402 sq. ft. Nav. Vert. Lift Bridge Clear. (ft.)

P - STBL - PROT INPL

Year 2007Primer Type 4 - Organic Zinc - non 3309 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 15.80

26.40Deck Rebars Install Year

Deck Rebars

Finish Type M - UrethaneWear Course/Fill Depth 0.12 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

44 1

Inspector Name Forsyth, Roy

Latitude Control Section (TH Only) Status' 24.65 ''

2 - 2-way traffic

Routine Inspection Frequency 24

Sect., Twp., Range

0.3 MI E OF JCT TH 63 Level of Service 1 - MAINLINE

- 14W Roadway Type36 - 107N

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 N27 '

A - Open

Longitude 92 001+00.450 + N B I 27.13 '' Reference Point

Crew

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

Agency Br. No. 189

District 06

Bridge Match ID (TIS) 0 Userkey

MSAS 105(CTR ST) over ZUMBRO RIVER

Minnesota Structure Inventory Report

Bridge ID: 55517

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

Date: 07/28/2016

Sufficiency Rating 76.3Roadway Name or Description

105

City Rochester

Routine Inspection Date 12/12/2014

Desc. Loc.

Township MSAS 105

Number

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

NRoute Sys 05 - MSASCounty 055 - Olmsted Functionally Obsolete

Lanes

Waterway Adequacy 6Max. Vert. Clear.

ft.Legislative District 30Aft.Potential ABC 2 - N/A ft.

ft.On - Off System Roadway Width 44.00 ft.

Vertical Clearance ft.1 - ON

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 44.0

50.0 ft.

Service Under

ft.

43.9 ft. Approach Alignment 8Horizontal Clear.

ft.

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

HCADT ADTT7

Year Built 1968

MN Year Reconstructed Functional Class

%Channel 9

Substructure

0Superstructure 7

ON 3 UNDER

9200 YEAR 2008BMU Agreement ADT

Structure Evaluation 6If Divided

D I M E N S I O N S +Bridge Plan Location 4 - MUNICIPAL

6/1/1969Deck Geometry 5

NB-EB SB-WBDate Opened to Traffic

+ R D W Y

FHWA Year Reconstructed

MN Temporary Status

17 - Urban - CollectorCulvert N

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

Page 7 of 16

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:

Olmsted

Rochester

107N36 14W

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

6 7 7 9 N

8 6

0 - Not Required

0 - Not Required

0 - Not Required

N - Not Applicable

P - STBL - PROT INPL

0.3 MI E OF JCT TH 63

05 - MSAS 105 001+00.450

225.2

62.0

9914 sq. ft. / %

16402 sq. ft. / %

N/A

A - Open

ft.

ft.

Postings:List:

MINNESOTA BRIDGE INSPECTION REPORT

09/14/2016

Inspector: CO Bridge

BRIDGE 55517 MSAS 105(CTR ST) OVER ZUMBRO RIVER

Unofficial Structurally Deficient N

NUnofficial Functionally Obsolete

Unofficial Sufficiency Rating 76.3

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4REPORT TYPE

Reinforced Concrete Deck 07/28/2016 13962 SF 13683 0 279 012 Underwater

13962 SF 13683 0 279 0Migrated Values

Notes: [2012 - 2014]Transverse cracks w/ efflorescence at various locations. Moderate density.

Several spalls from jackhammering through deck when repairing delaminated areas in past years.

SPAN #1 (West)

SPAN #2 (Center)

SPAN #3 (East)Spall between girders 4-5 at midpoint'04 - Delam between girders 1-2.'07 - 1'x1' Delam between girders 4 & 5, 1'x1' spall between girders 5 & 6 @ mid pt. 2010 exposed rebar 09 - .5'x1' delam between 3-4 midspan. 2012 exposed rebar

510 - Wearing Surfaces 9914 SF 9716 0 198 0

Notes: Low Slump Overlay with Uncoated Rebar Notes: 92 - Deck scarified 0.5', delaminated areas removed and a 1.5'' low slump overlayplaced.'95 - Superficial cracking with minor surface abrasion and scaling.[2012 - 2014 ] Moderate cracking of moderate density.

Underwater 07/28/2016


Steel Open Girder/Beam 07/28/2016 1539 LF 1529 10 0 0107 Underwater

1539 LF 1529 10 0 0Migrated Values

Notes: 93 - Girders have been sandblasted and painted this fall. Painted in 2009[2012 - 2014]Scattered paint failures with rust.

515 - Steel Protective Coating 16402 SF 16295 0 107 0

Notes: [2016] Migrator used inventory quantity of 16,402 SF and estimated the condition states.



Reinforced Concrete Pier Wall 07/28/2016 135 LF 134 1 0 0210 Underwater


Notes: W. Pier[2007 - 2014] - 5 vertical cracks on W. face.

E. Pier[2007 - 2014] - 3 vertical cracks E. face.

Page 8 of 16

Reinforced Concrete Abutment 07/28/2016 188 LF 175 10 3 0215 Underwater


Notes: [2016] Migrator added 40 LF to abutment quantity to account for wingwalls (CS1:40 CS2:0 CS3:0 CS4:0).[2012 - 2014] Vertical cracks at various locations on both abutments. Moderate cracking under 3rd bearing and between 5th and 6th.

WEST ABUTMENTCracks under & between girders 4-5 and 6-7 are 1/16' wide.Cracks under & between girders 2-3 is 1/8' wide.Black stains over most of abutment face.24in. storm sewer is cracked at first joint. 15in. storm sewer is sheared off 1.5' at first joint.

EAST ABUTMENTWater leakage on bridge seat onto abutment face producing black stains over most of abutment face.21in. storm sewer is cracked at back face of abutment. 2 diagonal at connection w/ N wingwall. Spall at S utility 3sf with exposed rebar severesection loss.

Wingwall notes: [2012 - 2014] Caulk at floodwall cracking.[2014] Pothole developed in bituminous parking lot adjacent to NW wingwall joint NW of abutment. 1.5x1.5x1.5NE & SE abutment connections are 1/16'SE - Vertical crack @ 2' & 8' from abutment connection.NE - Vertical crack @ midpoint & 2.5' from connection.SW - Diagonal and vertical crack of face.

Reinforced Concrete Pier Cap 07/28/2016 135 LF 135 0 0 0234 Underwater


Notes: [2012 - 2014]EAST PIER Vertical cracks in pier face under girder 3 and between 2-3.

[2012 - 2014] WEST PIER Vertical cracks in pier face between and under girders 3-4 and 5-6.

Pourable Joint Seal 07/28/2016 89 LF 1 44 0 44301 Underwater


Notes: 93 - 2' Bit felt joint on E end. Joint at W end has opened up, neoprene seal is at bottom of joint, joint is full of dirt and has been hot poured over.'95 - West joint at approach panel is missing the hot pour sealant.

[2010 - 2014] Joints filled with bit

Compression Joint Seal 07/28/2016 102 LF 0 102 0 0302 Underwater


Notes: [2012 - 2014] Adhesion failure all joints. Water leaking at west abutment. Covered with bit and hot pour.

Movable Bearing 07/28/2016 21 EA 21 0 0 0311 Underwater

21 EA 21 0 0 0Migrated Values

Notes: [2012 - 2014] Minor rusting of bearings.

Fixed Bearing 07/28/2016 7 EA 7 0 0 0313 Underwater


Notes: [2012 - 2014] Minor rusting of bearings.

Reinforced Concrete Approach Slab 07/28/2016 2000 SF 0 2000 0 0321 Underwater


Notes: [2016] Migrator assumed an approach slab length of 20FT and used the inventory quantity of 50FT for the width.93 - New E approach panel placed, new approach curb & gutter at all corners of bridge.'04 - West approach panel has settled aprox. 2".'07 - West settlement has been filled w/ bit.[2012 - 2014] Moderate cracking of panels, West panels 2" settlement filled with bit. E approach settled 1/2".


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Page 9 of 16

Metal Bridge Railing 07/28/2016 446 LF 446 0 0 0330 Underwater


Notes: [2016] Migrator assumed concrete/metal combination type rail.Vertical cracks in concrete rail base, at various locations, along length of rails.'97 - N metal rail has impact damage on E end. Support bracket bent.'99 - SE end block and section of metal rail were damaged by traffic impact. The end block and rail section were replaced late fall of '99'07 - Vertical cracks in concrete rail base at railing connections09 - .5'x.5' delam se cor, spall at sw abut ex rebar

[2012 - 2014] Concrete base has vertical cracks at railing connections.

515 - Steel Protective Coating 999 SF 999 0 0 0

Notes: [2016] Migrator assumed CS1 and a quantity of 999 SF.



Reinforced Concrete Bridge Railing 07/28/2016 446 LF 446 0 0 0331 Underwater


Notes: [2016] Migrator assumed concrete/metal combination type rail.Vertical cracks in concrete rail base, at various locations, along length of rails.'97 - N metal rail has impact damage on E end. Support bracket bent.'99 - SE end block and section of metal rail were damaged by traffic impact. The end block and rail section were replaced late fall of '99'07 - Vertical cracks in concrete rail base at railing connections09 - .5'x.5' delam se cor, spall at sw abut ex rebar

[2012 - 2014] Concrete base has vertical cracks at railing connections.

Critical Deficiencies or Safety Hazards 07/28/2016 1 EA 1 0 0 0800 Underwater


Notes: NO CRITICAL FINDINGS OBSERVED DURING THE LAST INSPECTION.

Secondary Members (Superstructure) 07/28/2016 60 EA 60 0 0 0855 Underwater


Notes: [ - 2014] No defects noted

Concrete Shear Cracking 07/28/2016 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.

Scour 07/28/2016 1 EA 1 0 0 0885 Underwater


Notes: P - Stable due to protection. Inspect countermeasures.

Slopes & Slope Protection 07/28/2016 1 EA 1 0 0 0892 Underwater


Notes: Slopes - concrete flood control walls. no defect noted.

Deck & Approach Drainage 07/28/2016 1 EA 1 0 0 0894 Underwater


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


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Page 10 of 16

Sidewalk, Curb, & Median 07/28/2016 1 EA 0 1 0 0895 Underwater


Notes: [2012]Transverse cracks in walks at various locations along length of walks.Light scaling of S walk at W end. Misc spalls at various locations of N and S walks.

[2012 - 2014 ] Moderate cracking of light density and light cracking of moderate density, curb edges cracked. approach joint filler missing. SWcurb settlment. Numerous repaired spalls. SE approach walk cracked and settled near utility manhole/vault.

'93 - New walk approach panels @ NW, SW, & SE corners.'94 - Spalled areas on bridge walk has been patched. SW walk approach has cracked.'00 - Approach panel curb at NW corner has settled. A large void is developing under the walk.'07 - Gap at NW approach panel

NW and SW panels replaced, NE Approach walk and curb heaved and damaged.

Protected Species 07/28/2016 1 EA 1 0 0 0900 Underwater


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

General Notes:

Inspector's Signature Reviewer's Signature

Inventory Notes:

Inspectors: David Moore, Kyle Schlink, Josh Fjetland.

Channel & Protection'91 - Flood Control Project has completed channelization work.

******* Other Items ( City Use ) *******6in. gas main support is missing from W span.

[ - 2014] Watermain insulation is damaged/missing. Watermain in E and W span has sharp & substanial deflection.

[- 2014] Gas main and Electrical conduit corrosion prevalent.

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:

Moderate cracking of overlay, Joint filler needs repair. Settlement in approach slabs, curb and walk moderate cracking.


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Page 11 of 16

Photo 2 - View of East Abutment, looking east.

Photo 3 - View of West Abutment, looking west.

Pictures

Page 12 of 16

Pictures

Photo 4 - View of East Pier, looking east.

Photo 5 - View of West Pier, looking east.

Page 13 of 16

Pictures

Photo 6 - View of poor consolidation at upstream end of West Abutment, looking west.

Page 14 of 16

of 16

CoverTable of ContentsUnderwater SummaryUnderwater InspectionUnderwater Inspection ProceduresStructure InventoryElementsPicturesDrawings

bridge # msas 105(ctr st) over zumbro river...16402 sq. ft. / % n/a a - open ft. ft. list: postings:...

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