BRIDGE # CSAH 68 over VERMILLION RIVER - dot.state.mn.us · 19011 - RAVENNA 21 114N 16W 5 - Prestressed Concrete 2 - Stringer/Multi-beam or Girder 8 8 7 7 N 8 8 ... NBR ELEMENT NAME

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:

19529

CSAH 68 over VERMILLION RIVER

Metro Dakota RAVENNA

09/22/2016

Lovelace, Barritt

Barritt Lovelace

County Highway AgencyOwner:

MinnesotaSTATE:

UNDERWATER SUMMARY 3

UNDERWATER INSPECTION 4

UNDERWATER INSPECTION PROCEDURES 6

STRUCTURE INVENTORY 7

ELEMENTS 8

PICTURES 11

DRAWINGS 14

TABLE OF CONTENTS

PAGE NUMBER

Contractor:

(A) Monitor the timber debris accumulation at all piers, during future inspections, and if found to be increasing to a more detrimental extent, removal operations may become warranted at that time.

(B) 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. 19529, Bents 1, 2, 3, and 4, were generally found to be in good condition with no defects of structural significance. The channel bottom around the substructure units was well established and in stable condition with no notable scour.

(A) The channel bottom material consisted of cobbles and riprap up to 1 foot diameter.

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

(C) The steel piles were structurally sound with the coating intact above and below waterline.

(D) Timber debris accumulation, up to 1 foot diameter, was observed along the downstream half of Bent 1.

(E) Timber debris, up to 4 inches diameter, at the bottom of all piles on all bents.

INSPECTION FINDINGS

Page 3 of 15

Top of the bent cap at the upstream end of Bent 1Water Level Reference:

WATERLINE DATUM

Waterline Elevation (feet):

The waterline was approximately 12.5 feet below assumed reference line of 100 ft. Description:

87.5

4.

Bents 1, 2, 3, and 4.Substructure(s) Inspected:

SUBSTRUCTURE INSPECTION DATA

General Shape:

14.9Maximum Water Depth at Substructure(s) Inspected (feet):

Pile bents consist of a reinforced concrete bent cap supported by seven coated steel pipe piles.

Code:Item 62: Culvert:

6

Y 48 09/2016Code: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:

CSAH 68

County:

The bridge superstructure consists of a reinforced concrete deck supported by precast concrete girders. The superstructure is supported on two reinforced concrete abutments and four pile bents comprised of seven coated steel pipe piles. The substructure units are designated as the West Abutment, Bents 1 through 4, and the East Abutment.

Bridge Description:

019 - Dakota

Facility Carried:

BRIDGE DATA1.


Bridge #:

VERMILLION RIVERFeature Intersected:

19529

Underwater Visibility (feet):

Cloudy, 66°FWeather Conditions:

1.5

3.

3.0Waterway Velocity (ft/sec):

09/22/2016

Professional Engineer/Team Leader:

INSPECTION DATA2.

Barritt Lovelace P.E.

Date of Underwater Inspection:

Cory Stuber P.E.Inspection Diver:

Page 4 of 15

885 Scour 1 EA 1

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

225

CS3 CS4

Steel Pile 2828 LF

CS2ELEM # Unit CS1Element Description Quantity

Page 5 of 15

The routine underwater inspection of Bridge 19529 (CSAH 68 over the Vermillion River) was completed on September 22, 2016. The underwater inspection was conducted from a 21 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 four pile bents. According to the bridge inventory, Bents 1 through 4 were founded on seven coated steel CIP 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


Page 6 of 15

Spec. Feat.Pier Foundation (Material/Type)

8 - CIPCantilever ID

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

4 - PILE BENT

Underwater 60Culvert Type 3 - FTG PILE

Pinned Asbly.

09/22/2016

Barrel Length

384.6 ft. Navigation Control

Waterway Opening (sf.) 6455Structure Length

ft. Year Painted

0 - No nav. control on waterwayDeck Width (Out-to-Out) 47.3

+ P A I N T +

APPR: 0 TOTAL:5 - Not eligible

MAIN: 5

Main Span Length 76.0 ft.Drainage Area (sq. mi.) 215.0

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 5 - Prestress or Precast 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

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 2/1/199716921 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) 18192 sq. ft.

DBL:VEH: SEMI:

Rt 22 ARail Type Lt 22 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.)

I - LOW RISK Year 1996Primer Type 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 33.7

49.8Deck Rebars Install Year 1996

Deck Rebars

Finish TypeWear Course/Fill Depth 0.00 ft.

0 - None

Design Load 9 - HS 25 (OR GREATER)

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

44 ° 39

Inspector Name Lovelace, Barritt

Latitude Control Section (TH Only) Status' 58.41 ''

2 - 2-way traffic

Routine Inspection Frequency 24

Sect., Twp., Range

0.3 MI NE OF JCT CSAH 54 Level of Service 1 - MAINLINE

- 16W Roadway Type21 - 114N

Detour Length 6.0 mi.R A T I N G S +

Custodian 02 - County Highway Agency

Owner 02 - County Highway AgencyDeck 8 Unsound

Deck %

C O N D I T I O N° 44 '

A - Open

Longitude 92 002+00.000 + N B I 4.96 '' Reference Point

Crew

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

Agency Br. No. 59

District 05

Bridge Match ID (TIS) 0 Userkey

CSAH 68 over VERMILLION RIVER

Minnesota Structure Inventory Report

Bridge ID: 19529

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

Date: 01/20/2017

Sufficiency Rating 97.5Roadway Name or Description

68

City

Routine Inspection Date 12/22/2015

Desc. Loc.

Township 19011 - RAVENNA CSAH 68

Number

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

NRoute Sys 04 - CSAHCounty 019 - Dakota Functionally Obsolete

Lanes

Waterway Adequacy 8Max. Vert. Clear.

ft.Legislative District 36Bft.Potential ABC 2 - N/A ft.

ft.On - Off System Roadway Width 44.00 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 44.0

40.0 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 1996

MN Year Reconstructed Functional Class

%Channel 7

Substructure

0Superstructure 8

ON 2 UNDER

5362 YEAR 2008BMU Agreement ADT

Structure Evaluation 7If Divided

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

9/1/1996Deck Geometry 6

NB-EB SB-WBDate Opened to Traffic

+ R D W Y

FHWA Year Reconstructed

MN Temporary Status

06 - Rural - Minor ArterialCulvert N

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

Page 7 of 15

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:

Dakota

19011 - RAVENNA

114N21 16W

5 - Prestressed Concrete 2 -Stringer/Multi-beam or Girder

8 8 7 7 N

8 8

0 - Not Required

0 - Not Required

0 - Not Required

N - Not Applicable

I - LOW RISK

0.3 MI NE OF JCT CSAH 54

04 - CSAH 68 002+00.000

384.6

47.3

16921 sq. ft. / %

sq. ft. / %

N/A

A - Open

ft.

ft.

Postings:List:

MINNESOTA BRIDGE INSPECTION REPORT

01/30/2017

BRIDGE 19529 CSAH 68 OVER VERMILLION RIVER

Unofficial Structurally Deficient N

NUnofficial Functionally Obsolete

Unofficial Sufficiency Rating 97.5

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4REPORT TYPE

Reinforced Concrete Deck 09/22/2016 18192 SF 17828 0 364 012 Underwater

18192 SF 17828 0 364 0Migrated Values

Notes: There is 512 LF of transverse under deck cracking with efflorescence.

510 - Wearing Surfaces 16921 SF 16921 0 0 0

Notes: Top of Concrete Deck with Epoxy Reinforcement Notes: [2015] 1/2 SF of spall on centerline.

Underwater 09/22/2016


Prestressed Concrete OpenGirder/Beam

09/22/2016 1900 LF 1900 0 0 0109 Underwater

1900 LF 1900 0 0 0Migrated Values

Reinforced Concrete Abutment 09/22/2016 95 LF 95 0 0 0215 Underwater


Notes: [2007] 32 LF very light cracks in both abutments.

Steel Pile 09/22/2016 28 EA 27 1 0 0225 Underwater

28 EA 27 1 0 0Migrated Values

Notes: [2007] Partial failure of protective coating. Light rust on pile near water or ground line. [2009] Pile #7 in pier #3 showing signs of distressin protective coating. [2013] Pier 3 pile 7 showing signs of distress in the protective coating suggesting the pile shell may be expanding.

515 - Steel Protective Coating 999 SF 999 0 0 0

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

Underwater 09/22/2016


Reinforced Concrete Pier Cap 09/22/2016 184 LF 184 0 0 0234 Underwater


Notes: Pier cap #3, diagonal cracks on east & west side above pile. [2009] Pier cap #3, 7 lf diagonal cracking above pile 7 north side, 4 lfdiagonal cracking above pile #2. [2013] East face of pier cap 3 at pile 7 has 10LF of light diagonal cracking. West face of pier cap 3 at pile 7 has8 LF of light diagonal cracking. The underside of pier cap 3 at pile 7 has 9 cracks radiating out from where the pile meets the concrete pier.

Strip Seal Expansion Joint 09/22/2016 89 LF 89 0 0 0300 Underwater


Notes: [2007] Strip seal is full of debris.

Pourable Joint Seal 09/22/2016 438 LF 58 380 0 0301 Underwater


Notes: [2015] Poured joint above pier 1 needs to be repaired.

Page 8 of 15

Elastomeric Bearing 09/22/2016 50 EA 50 0 0 0310 Underwater


Reinforced Concrete Approach Slab 09/22/2016 1600 SF 800 800 0 0321 Underwater


Notes: [2016] Migrator assumed an approach slab length of 20FT and used the inventory quantity of 40FT for the width.N.E. panel has 1/2'' to 1'' of settlement. [2013] Both ends have settled and created a dip at the bridge.

Reinforced Concrete Bridge Railing 09/22/2016 823 LF 823 0 0 0331 Underwater


Notes: [2007] 350 LF light vertical cracks in all sections. Many pop outs on both railings. [2009] 352 LF of light vertical cracking - 177 LF innorth rail, 175 LF in south rail. [2015] 198 LF light vertical cracking in south railing.

Critical Deficiencies or Safety Hazards 09/22/2016 1 EA 1 0 0 0800 Underwater


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

Concrete Decks - Cracking & Sealing 09/22/2016 0 LF 0 0 0 0810 Underwater


Notes: 200 LF. of medium cracks adjacent to joints over piers. 75 lf of longitudanal cracks along edgeline

Secondary Members (Superstructure) 09/22/2016 50 EA 50 0 0 0855 Underwater


Concrete Shear Cracking 09/22/2016 1 EA 0 1 0 0883 Underwater


Notes: [2015] Cracking present in pier 3 north end of concrete pier cap.

Scour 09/22/2016 1 EA 1 0 0 0885 Underwater

Slopes & Slope Protection 09/22/2016 1 EA 1 0 0 0892 Underwater


Notes: Use this element to rate the condition of slopes and slope protection.

Guardrail 09/22/2016 1 EA 1 0 0 0893 Underwater


Deck & Approach Drainage 09/22/2016 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 09/22/2016 1 EA 1 0 0 0895 Underwater


Notes: [2015] NE curb is damaged and broke loose.

Protected Species 09/22/2016 1 EA 1 0 0 0900 Underwater


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


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Page 9 of 15


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

General Notes:

Inspector's Signature Reviewer's Signature

Bridge 19529 (Sec.21,T114N,R16W) This bridge replaced Bridge 740 in 1996.[2015] 9/28/2015, used bridge snooper to inspect 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:

62. Culvert NBI:

71. Waterway Adeq NBI:

72. Appr RoadwayAlignment NBI:

Page 10 of 15

Photo 1 - North Elevation, Looking South.

Photo 2 - West Abutment, Looking West.

Pictures

Page 11 of 15

Pictures

Photo 3 - Pier 1, Looking Southeast.


Page 12 of 15

Pictures



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Documents

BRIDGE # CSAH 68 over VERMILLION RIVER - dot.state.mn.us · 19011 - RAVENNA 21 114N 16W 5 - Prestressed Concrete 2 - Stringer/Multi-beam or Girder 8 8 7 7 N 8 8 ... NBR ELEMENT NAME