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:

86502

EASTWOOD AVE SE over S FK CROW RIVER

District 3 Wright FRANKLIN

06/29/2016

Owens, Garrett

Garrett Owens

Town or Township Highway AgencyOwner:

MinnesotaSTATE:

UNDERWATER SUMMARY 3

UNDERWATER INSPECTION 4

UNDERWATER INSPECTION PROCEDURES 6

STRUCTURE INVENTORY 7

ELEMENTS 8

PICTURES 12

DRAWINGS 14

TABLE OF CONTENTS

PAGE NUMBER

Contractor:

(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. 86502, Piers 1 and 2, were generally found to be in good condition with no defects of structural significance. Coating failure was typical on piles from 1 foot above the waterline to the channel bottom. The channel bottom around each had a 1 foot deep scour pocket around each of the piles.

(A) The piles exhibited 80 percent coating failure from 1 foot above the waterline to the channel bottom.

(B) A 3 foot diameter scour pocket was noted around each pile approximately 1 foot deep.

(C) Timber debris up to 8 inches in diameter was noted along the length of Pier 2.

INSPECTION FINDINGS

Page 3 of 15

The top of the cap at the downstream end Pier 1.Water Level Reference:

WATERLINE DATUM

Waterline Elevation (feet):

The waterline was approximately 9.9 feet below reference.Description:

90.1

4.

Piers 1 and 2Substructure(s) Inspected:

SUBSTRUCTURE INSPECTION DATA

General Shape:

10.6Maximum Water Depth at Substructure(s) Inspected (feet):

Each pier consists reinforced concrete caps and four CIP piles.

Code:Item 62: Culvert:

6

Y 48 06/2016 Code: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 3District:

EASTWOOD AVE SE

County:

The bridge superstructure consists of three spans of multiple wood beams supported by CIP pile bent piers and two wooden abutments. The Piers are numbered 1 and 2 starting from the West end of the bridge.

Bridge Description:

086 - Wright

Facility Carried:

BRIDGE DATA1.

UNDERWATER INSPECTION

Bridge #:

S FK CROW RIVERFeature Intersected:

86502

Underwater Visibility (feet):

Sunny, 77° FWeather Conditions:

1

3.

2Waterway Velocity (ft/sec):

06/29/2016

Professional Engineer/Team Leader:

INSPECTION DATA2.

Cory R. Stuber, P.E.

Date of Underwater Inspection:

Cory R. Stuber, P.E.Inspection Diver:

Page 4 of 15

Secondary Members (Substructure) 1856 EA 1

885 Scour 1 EA 1

STRUCTURAL ELEMENT CONDITION RATING

Conditions

6.

K

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 or CIP Piling 88 EA

CS2ELEM # Unit CS1Element Description Quantity

Page 5 of 15

The routine underwater inspection of Bridge 86502 (Eastwood Ave SE over the South Fork Crow River) was completed on June 22, DAY, 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 piers with four CIP piles each. According to the bridge inventory or design drawings, Piers 1 and 2 were founded on 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

UNDERWATER INSPECTION

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 Y 60Culvert Type 0 - UNKNOWN

Pinned Asbly. N

06/29/2016

Barrel Length

151.2 ft. Navigation Control

Waterway Opening (sf.) 2175Structure Length

ft. Year Painted

0 - No nav. control on waterwayDeck Width (Out-to-Out) 25.6

+ P A I N T +

APPR: 0 TOTAL:5 - Not eligible

MAIN: 3

Main Span Length 50.5 ft.Drainage Area (sq. mi.)

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 0 - SUBSTANDARD

Appr. Guardrail

Main Span Type 7 - Timber Median Width On Bridge

ft. Bridge Railing 0 - SUBSTANDARD

0 - SUBSTANDARD

Main Span Design 01 - Beam Span

ft. GR Transition

Skew 0

Y/N Freq Date

NAbutment Foundation (Material/Type)

2 - TIMBER 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 07/26/20113660 sq. ft. Traffic

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

Roadway Area (Curb-to-Curb)

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

PostingStructure Area (Out-to-Out) 3871 sq. ft.

DBL:VEH: 34 SEMI:

Rt 37 ARail Type Lt 37 C N - N/AN - N/A B N - N/A

N - Not Applicable Overweight Permit CodesCurb Height Lt

ft. Horizontal 1 - Object Markers

0.00 ft. Vertical0.00 ft. Rt

Wear Surf Install Year

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

K - LIMITED RISK

Year 2006Primer Type MN Scour Code

Painted Area

Unsound Paint % Nav. Clr. (ft.)

!

Deck Material 1 - Concrete Cast-in-Place 0.0Wear Surf Type 6 - Bituminous

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 13.9

21.4Deck Rebars Install Year

Deck Rebars

Finish TypeWear Course/Fill Depth 0.25 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 ° 59

Inspector Name Owens, Garrett

Latitude Control Section (TH Only) Status' 39.22 ''

2 - 2-way traffic

Routine Inspection Frequency 24

Sect., Twp., Range

0.3 MI S OF JCT CSAH16 Level of Service 1 - MAINLINE

- 25W Roadway Type26 - 118N

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

Custodian 03 - Town or Township Highway Agency

Owner 03 - Town or Township Highway Agency

Deck 5 Unsound Deck %

C O N D I T I O N° 48 '

P - Posted for Load

Longitude 93 001+00.620 + N B I 8.99 '' Reference Point

Crew

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

Agency Br. No. 126

District 03

Bridge Match ID (TIS) 0 Userkey

EASTWOOD AVE SE over S FK CROW RIVER

Minnesota Structure Inventory Report

Bridge ID: 86502

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

Date: 10/19/2016

Sufficiency Rating 78.7Roadway Name or Description

276

City

Routine Inspection Date 10/05/2016

Desc. Loc.

Township 86008 - FRANKLIN EASTWOOD AVE SE

Number

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

NRoute Sys 08 - TWNSCounty 086 - Wright Functionally Obsolete

Lanes

Waterway Adequacy 8Max. Vert. Clear.

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

ft.On - Off System Roadway Width 24.20 ft.

Vertical Clearance ft.0 - OFF

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 24.2

26.0 ft.

Service Under

ft.

ft. Approach Alignment 4Horizontal Clear.

ft.

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

HCADT ADTT7

Year Built 1966

MN Year Reconstructed Functional Class

%Channel 5

Substructure

0Superstructure 6

ON 2 UNDER

200 YEAR 1986BMU Agreement ADT

Structure Evaluation 6If Divided

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

Deck Geometry 5NB-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

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:

Wright

86008 - FRANKLIN

118N26 25W

7 - Wood or Timber 2 -Stringer/Multi-beam or Girder

5 6 7 5 N

4 8

1 - Vehicle Only (TypeR12-1A)

1 - Object Markers

0 - Not Required

N - Not Applicable

K - LIMITED RISK

0.3 MI S OF JCT CSAH16

08 - TWNS 276 001+00.620

151.2

25.6

3660 sq. ft. / %

sq. ft. / %

N/A

P - Posted for Load

ft.

ft.

Postings: 34List:

MINNESOTA BRIDGE INSPECTION REPORT

12/05/2016

Inspector: CO Bridge

BRIDGE 86502 EASTWOOD AVE SE OVER S FK CROW RIVER

Unofficial Structurally Deficient N

NUnofficial Functionally Obsolete

Unofficial Sufficiency Rating 78.7

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4REPORT TYPE

Timber Deck 06/29/2016 3871 SF 3771 100 0 031 Underwater

10/05/2016 3871 SF 3771 100 0 0Routine

Notes: [10-10-16] approx. 10'x10' section at mid span of deck is yielding enough to cause deterioration of bit. overlay.

510 - Wearing Surfaces 3660 SF 3560 0 100 0

Notes: [9-25-14]area at approx. 60' east of west abutment is showing signs of distress in middle od deck. [10-10-16] approx. 10'x10' section at mid span of deck is yielding enough to cause deterioration of bit. overlay.

Underwater 06/29/2016

3660 SF 3560 0 100 0Routine 10/05/2016

Timber Open Girder/Beam 06/29/2016 900 LF 900 0 0 0111 Underwater

10/05/2016 900 LF 900 0 0 0Routine

Notes: Corrected total beam length.(10-2-2012)

[9-25-14] [10-10-16]

Timber Abutment 06/29/2016 92 LF 92 0 0 0216 Underwater

10/05/2016 92 LF 92 0 0 0Routine

Notes: [2016] Migrator added 40 LF to abutment quantity to account for wingwalls (CS1:40 CS2:0 CS3:0 CS4:0).[9-25-14]

Wingwall notes: [9-25-14] [10-10-16]

Steel Pile 06/29/2016 8 EA 0 8 0 0225 Underwater

10/05/2016 8 EA 0 8 0 0Routine

Notes: [9-25-14] [10-10-16] some surface corrosion on piling. Jct. of piles and pier cap showing some flaking rust with section loss.

515 - Steel Protective Coating 250 SF 0 242 8 0

Notes: [10-10-16] some surface corrosion on piling. Jct. of piles and pier cap showing some flaking rust with section loss.

Underwater 06/29/2016

250 SF 0 242 8 0Routine 10/05/2016

Timber Pile 06/29/2016 24 EA 0 24 0 0228 Underwater

10/05/2016 24 EA 0 24 0 0Routine

Notes: [9-25-14] [10-10-16]

Page 8 of 15

Reinforced Concrete Pier Cap 06/29/2016 52 LF 52 0 0 0234 Underwater

10/05/2016 52 LF 52 0 0 0Routine

Notes: [9-25-14] [10-10-16]

Metal Bridge Railing 06/29/2016 165 LF 165 0 0 0330 Underwater

10/05/2016 165 LF 165 0 0 0Routine

Notes: [9-25-14] [10-10-16] Gaurdrail on wood posts.

515 - Steel Protective Coating 500 SF 500 0 0 0

Notes: [10-10-16] guardrail sections mounted on wood posts.

Underwater 06/29/2016

500 SF 500 0 0 0Routine 10/05/2016

Timber Bridge Railing 06/29/2016 165 LF 115 50 0 0332 Underwater

10/05/2016 165 LF 115 50 0 0Routine

Notes:[9-25-14] [10-10-16] moderate deterioration of wood posts. Connections appear solid.

Critical Deficiencies or Safety Hazards 06/29/2016 1 EA 1 0 0 0800 Underwater

10/05/2016 1 EA 1 0 0 0Routine

Notes: [10-10-16]

Secondary Members (Superstructure) 06/29/2016 2 EA 2 0 0 0855 Underwater

10/05/2016 2 EA 2 0 0 0Routine

Notes: Pile brace and superstructure diaphrams. (10-13-09)

[9-25-14] [10-10-16]

Secondary Members (Substructure) 06/29/2016 1 EA 0 1 0 0856 Underwater

Notes: [2016] Underwater Inspection - Surface corrosion noted on surfaces below waterline.

Concrete Shear Cracking 06/29/2016 1 EA 1 0 0 0883 Underwater

10/05/2016 1 EA 1 0 0 0Routine

Notes: [10-10-16]

Scour 06/29/2016 1 EA 1 0 0 0885 Underwater

10/05/2016 1 EA 1 0 0 0Routine

Notes: G - Foundation unknown. Evaluation and/or screening required.

[9-25-14] [10-10-16]

Load Posting or Vertical ClearanceSigning

06/29/2016 1 EA 1 0 0 0890 Underwater

10/05/2016 1 EA 1 0 0 0Routine

Notes: [10-10-16] Load posting signing inplace.

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4

BRIDGE 86502 EASTWOOD AVE SE OVER S FK CROW RIVER

REPORT TYPE

Page 9 of 15

Other Bridge Signing 06/29/2016 1 EA 1 0 0 0891 Underwater

10/05/2016 1 EA 1 0 0 0Routine

Notes: Missing end marker in nw corner. It is laying on the ground nest to the wingwall. (10-13-09)

NW corner end marker is missing and needs to be replaced. East end markers are in poor condition and need replaced.

NW corner end marker still missing. **Signing for new load restrictions need to be placed. Changed to state 5(10-2-2012)

[9-25-14]signing is in place.

[9-25-14] Signing, including end markers and load postings are in place. Moved item to state 1. [10-10-16]

Slopes & Slope Protection 06/29/2016 1 EA 0 1 0 0892 Underwater

10/05/2016 1 EA 0 1 0 0Routine

Notes: west abutment slope needs rip rap. east slope has good coverage. (10-13-09)

Slopes have been reshaped and rip rap placed along west abutment slope. Franklin township placed salvaged concrete for rip rap. Rebar ispresent in this material and should be cut off & removed.(10-2-2012)

[9-25-14] channel is eroding at NE corner of bridge and could undermine east abutment. Moved to state 2. [10-10-16]

Deck & Approach Drainage 06/29/2016 1 EA 1 0 0 0894 Underwater

10/05/2016 1 EA 1 0 0 0Routine

Notes: [10-10-16]

Protected Species 06/29/2016 1 EA 1 0 0 0900 Underwater

10/05/2016 1 EA 1 0 0 0Routine

Notes: [10-10-16]

General Notes: Inspector William S. Augustin Certification #BSI 1011 A total of 12 timber column & 32' of Timber cap for each abutment. 75%of rip-rap on both slopes under bridge with washouts on both slopes. Inspector: Hans A. Engstrom BSI#1101 PONTISinspection comments - PONTIS inspection comments - 11/28/2000 Slope protection neeeded (especially on the eastside) Inspector 1101 Hans Engstrom. 1-27-2006 Inspected Virgil Hawkins, P.E. Bill Augustin. Insp. by Mike McCann bsi#96130 and Nick Carlson (10-13-09)

Insp. by Mike McCann BSI#96130 & Nick Carlson (9-29-2010)

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:

[9-25-14] [10-10-16] Deck surface shows signs of distress in a spot approx. 60 ft. east of west abutment at centerline of bridge.Bituminous overlay is breaking up in this location.

Railing code #37

[9-25-14] [10-10-16]

[9-25-14] [10-10-16]

[9-25-14] [10-10-16]

[9-25-14] [10-10-16]

[9-25-14] [10-10-16]

[9-25-14] [10-10-16]

[9-25-14] channel is eroding at SE corner of bridge. Slope protection may need to be added to protect east abutment. [10-10-16] SE corner needs to be monitored for erosion of channel.

[9-25-14] [10-10-16]

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4

BRIDGE 86502 EASTWOOD AVE SE OVER S FK CROW RIVER

REPORT TYPE

Page 10 of 15

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4

BRIDGE 86502 EASTWOOD AVE SE OVER S FK CROW RIVER

REPORT TYPE

Inspector's Signature Reviewer's Signature

Garrett Owens

Inventory Notes:

71. Waterway Adeq NBI:

72. Appr RoadwayAlignment NBI:

[9-25-14] [10-10-16]

[9-25-14] [10-10-16]

Page 11 of 15

Photo 1 - Downstream Elevation Looking Southeast

Photo 2 - Upstream Elevation Looking Northeast

Pictures

Page 12 of 15

Pictures

Photo 3 - Typical View of Pier 1 Looking East

Photo 4 - Typical View of Pier 2 Looking Southeast

Page 13 of 15

Figure No.: 1

Scale: NTS

N

UNDERWATER BRIDGE INSPECTION

DEPARTMENT OF TRANSPORTATION

MINNESOTA

INSPECTION AND SOUNDING PLAN

Drawn By: BGDO

Checked By: BRL

Date: June 2016

Project: 63-9687

1599 Selby Avenue

Suite 206

St. Paul, MN 55104

(651) 646-8502

www.collinsengr.com

Legend

Sounding Depth (6/29/16)

Timber Debris

-7.7

-6.1

-7.2

-7.8

-8.9

-9.9

-9.3

-9.2

-9.7

-7.8

-0.4

-7.6

-10.4

-10.3

-6.8

-8.0

-10.6

-10.8

-10.6

-7.2

-7.5

1

2

2

3

3

1.

Timber debris up to 8 inches in diameter was noted along the length of Bent 4

foot deep.

A 3 foot diameter scour pocket was noted around each pile approximately 1 3

channel bottom.

80% coating failure typical on piles from 1 foot above the waterline to the 2

penetration.

except along the west shorline where it was sandy silt with 12 inches of

The channel bottom material consisted of sand with 6 inches of penetration 1

INSPECTION NOTES:

East Abutment

Flow

West Abutment

WRIGHT COUNTY

OVER THE SOUTH FORK OF THE CROW RIVER

STRUCTURE NO. 86502

TYPICAL END VIEW OF PIERS

Pier 1

Pier 2

Crow River

South Fork

substructure units as well as around the pier structures.

4. Soundings were taken parallel to the bridge at 1/4 point intervals between the

in feet.

3. Soundings indicate the water depth at the time of inspection and are measured

of 100.0 was assumed. This corresponds to a waterline elevation of 90.1.

of Pier 1. Since insufficient elevation information was available, an elevation

approximately 9.9 feet below the bottom of the pier cap at the downstream end

2. At the time of inspection, on June 22, 2016, the waterline was located

1. Piers 1 and 2 were inspected underwater.

GENERAL NOTES:

4

Page 14 of 15

UPSTREAM FASCIA PROFILE

Figure No.: 2

UNDERWATER BRIDGE INSPECTION

DEPARTMENT OF TRANSPORTATION

MINNESOTA

UPSTREAM AND DOWNSTREAMFASCIA PROFILES

Scale: 1"=20'

Refer to Figure 1 for General Notes.

Note:

70

90

Checked By: BRL

Shoreline

6/29/16

Channel Bottom

Drawn By: BGDO

Project: 63-9687

1599 Selby Avenue

Suite 206

St. Paul, MN 55104

(651) 646-8502

www.collinsengr.com

Date: June 2016

50

110

70

90

50

110

ShorelineShoreline

Shoreline

6/29/16

Channel Bottom

W.L. El. 90.1

W.L. El. 90.1

DOWNSTREAM FASCIA PROFILE

50'-7"48'-6" 48'-6"

48'-6"50'-7"48'-6"

WRIGHT COUNTY

OVER THE SOUTH FORK OF THE CROW RIVER

STRUCTURE NO. 86502

Page 15 of 15