BRIDGE # CSAH 24 over VERMILLION RIVER - … · Equipment - Olympus Epoch 600 portable ultrasonic flaw detector. 1/2" diameter 5 Mhz transducer. 30°-70°-70

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:

7221

CSAH 24 over VERMILLION RIVER

District 1 St. Louis PORTAGE

06/19/2016

Full Body Harness, UB-30, Non-destructive TestingEquipment - Olympus Epoch 600 portable ultrasonic flawdetector. 1/2" diameter 5 Mhz transducer. 30°-70°-70°creeping wave transducer.

Janulis, Lukas

Lukas Janulis

County Highway AgencyOwner:

MinnesotaSTATE:

enunez

Rectangle

enunez

Text Box

Highway Agency

UNDERWATER SUMMARY 3

UNDERWATER INSPECTION 4

UNDERWATER INSPECTION PROCEDURES 6

STRUCTURE INVENTORY 7

ELEMENTS 8

PHOTOGRAPHS 12

BRIDGE 7221 UNDERWATER INSPECTION DRAWINGS 2016 14

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 at Bridge No. 7221, Piers 1 and 2, were found to be generally in good condition with no defects of structural significance below water. The concrete was typically sound with only light scaling present. Scour depressions, 6 feet in radius and a maximum of 2 feet deep, were observed at the upstream and downstream columns of Piers 1 and 2. Otherwise, the channel bottom at the bridge appeared stable with no indication of channel bottom degradation as compared to the previous underwater inspection findings.

(A) Scaling was observed from 1.5 feet above the waterline to the channel bottom with a 1/2 inch maximum penetration (1/4 inch typical) at upstream and downstream columns of Piers 1 and 2.

(B) Scour depressions, 6 feet in radius and up to 2 feet deep, were observed at the upstream columns of Pier 1 and 2. Also, scour depressions, 6 feet in radius and up to 1 foot deep, were observed at the downstream columns of Piers 1 & 2.

(C) A light accumulation of timber debris, consisting of two 6 inch diameter logs (approx. 10 feet long each), was located on the channel bottom across the upstream column of Pier 2.

(E) The channel bottom material consisted of scattered rocks up to 2 feet in diameter and smaller, sandy silt, and gravel with up to 6 inches of probe rod penetration.

INSPECTION FINDINGS

Page 3 of 15

Below the top of the pier cap at the upstream end of Pier 2.Water Level Reference:

WATERLINE DATUM

Waterline Elevation (feet):

The waterline was located approximately 7.1 feet below the reference.Description:

1209.4 feet

4.

Piers 1 and 2Substructure(s) Inspected:

SUBSTRUCTURE INSPECTION DATA

General Shape:

7.8 feetMaximum Water Depth at Substructure(s) Inspected (feet):

The piers consist of a rectangular reinforced concrete pile cap supported by two concrete columns.

Code:Item 62: Culvert:

7

Y 48 06/2016Code: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 1District:

CSAH 24

County:

The superstructure consists of a three span, steel girder bridge supporting a reinforced concrete deck. The superstructure is supported by two reinforced concrete abutments and two reinforced concrete column bents. The columns are founded on rectangular footings supported on piles. The piers are numbered 1 and 2, starting from the south end of the bridge.

Bridge Description:

069 - St. Louis

Facility Carried:

BRIDGE DATA1.


Bridge #:

VERMILLION RIVERFeature Intersected:

7221

Underwater Visibility (feet):

Sunny, 80°FWeather Conditions:

4.0 feet

3.

1.5 ft/secWaterway Velocity (ft/sec):

06/19/2016

Professional Engineer/Team Leader:

INSPECTION DATA2.

Lukas Janulis

Date of Underwater Inspection:

Lukas JanulisInspection 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

205

CS3 CS4

Reinforced Concrete Column 44 EA

CS2ELEM # Unit CS1Element Description Quantity

Page 5 of 15

The routine underwater inspection of Bridge 7221 (CSAH 24 over Vermillion River) was completed on June 19, 2016. The underwater inspection was conducted from shore. The inspection was conducted by a team consisting of a Professional Engineer Diver with a valid MnDOT Team Leader certification, a backup diver and dive tender. The inspection utilized commercial dive equipment and techniques in accordance with OSHA regulations. Channel bottom 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. According to the bridge inventory, the columns of Piers 1 and 2 are founded on rectangular footings supported on piles. Inspection procedures followed FHWA guidance and the MnDOT Bridge and Structure Inspection Program Manual with channel bottom probing to search for foundations. The maximum 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


Page 6 of 15

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

07/09/2013

Underwater Y 60Culvert Type 3 - FTG PILE

Pinned Asbly. 60

06/19/2016

Barrel Length

212.2 ft. Navigation Control

Waterway Opening (sf.) 2376Structure Length

ft. Year Painted

0 - No nav. control on waterwayDeck Width (Out-to-Out) 30.5

+ P A I N T +

APPR: 0 TOTAL:5 - Not eligible

MAIN: 3

Main Span Length 80.0 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 1 - MEETS STANDARDS

Appr. Guardrail

Main Span Type 4 - Steel Continuous 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

Abutment Foundation (Material/Type)

1 - CONC Frac. Critical

N - No Splice

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 07/17/20130 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) 6472 sq. ft.

DBL:VEH: 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

0.50 ft. Vertical0.50 ft. Rt

Wear Surf Install Year

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

I - LOW RISK YearPrimer Type MN Scour Code

Painted Area

Unsound Paint % 10 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 15.5

25.9Deck Rebars Install Year

Deck Rebars

Finish TypeWear Course/Fill Depth 0.00 ft.

0 - None

Design Load 4 - H 20

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

48 ° 7

Inspector Name Janulis, Lukas

Latitude Control Section (TH Only) Status' 25.67 ''

2 - 2-way traffic

Routine Inspection Frequency 24

Sect., Twp., Range

0.1 MI N OF JCT CSAH23 Level of Service 1 - MAINLINE

- 17W Roadway Type9 - 065N

Detour Length 99.0 mi.R A T I N G S +

Custodian 02 - County Highway Agency15

Owner 02 - County Highway AgencyDeck 5 Unsound

Deck %

C O N D I T I O N° 31 '

A - Open

Longitude 92 032+00.408 + N B I 23.33 '' Reference Point

345 Crew

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

Agency Br. No. 109

District 01

Bridge Match ID (TIS) 0 Userkey

CSAH 24 over VERMILLION RIVER

Minnesota Structure Inventory Report

Bridge ID: 7221

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

Date: 09/07/2016

Sufficiency Rating 79.8Roadway Name or Description

24

City

Routine Inspection Date 07/13/2015

Desc. Loc.

Township 69056 - PORTAGE CSAH 24

Number

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

NRoute Sys 04 - CSAHCounty 069 - St. Louis Functionally Obsolete

Lanes

Waterway Adequacy 8Max. Vert. Clear.

ft.Legislative District 06Aft.Potential ABC 2 - N/A ft.

ft.On - Off System Roadway Width 28.00 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 28.0

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 1962

MN Year Reconstructed Functional Class

%Channel 7

Substructure

0Superstructure 6

ON 2 UNDER

115 YEAR 2008BMU Agreement ADT

Structure Evaluation 6If Divided

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

Deck Geometry 6NB-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

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:

St. Louis

69056 - PORTAGE

065N9 17W

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

5 6 7 7 N

8 8

0 - Not Required

1 - Object Markers

0 - Not Required

N - Not Applicable

I - LOW RISK

0.1 MI N OF JCT CSAH23

04 - CSAH 24

345

032+00.408

212.2

30.5

0 sq. ft. / 15%

0 sq. ft. / 10%

N/A

A - Open

ft.

ft.

Postings:List:

MINNESOTA BRIDGE INSPECTION REPORT

10/28/2016

Inspector: CO Bridge

BRIDGE 7221 CSAH 24 OVER VERMILLION RIVER

Unofficial Structurally Deficient N

NUnofficial Functionally Obsolete

Unofficial Sufficiency Rating 79.8

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4REPORT TYPE

Reinforced Concrete Deck 09/07/2016 6472 SF 5825 0 647 012 Underwater

6472 SF 5825 0 647 0Migrated Values

Notes: [2015] Minor scaling in some water saturated areas.[2013] Map cracking below all poured deck joints with water saturation and leaching. Cracking and leaching at both hanger assembly areas.Slight cracks and leaching.

510 - Wearing Surfaces 999 SF 749 0 250 0

Notes: Top of Concrete Deck with Uncoated Rebar Notes: [2015] 4.5' by 1.5' area of exposed rebar span 3. Some concrete patches starting tospall. Few spalls have exposed reinforcement. Areas of delamination present around patches and spalls.[2013 Infrared Deck Inspection] Found numerous delaminations scattered across the entire surface. Many deck patches were no longereffective. A rough estimate of percent unsound deck would be 15% to 20%.[2013] Many spalls repaired with concrete, others with bituminous. Deck at joints show much cracking and spalling with patches. Rust stainingof concrete noticed on Span 1.Minor spalls.Quite a few repaired areas.Some spall repairs are popped out.Deck spalls are in need of repair.

Underwater 09/07/2016


Steel Open Girder/Beam 09/07/2016 848 LF 144 704 0 0107 Underwater

848 LF 144 704 0 0Migrated Values

Notes: [2015] Paint is starting to flake on bottom flange of interior beams with isolated surface corrosion. Top of bottom flange of fascia beamshas paint failure with surface corrosion present, but no flaking rust is present.[2013] Paint failing on all of the beams for most of their lengths. Beams at assembly joints show slight section loss and pitting. Beams havebeen painted previously but is now failing with surface rust the top of the bottom flanges of most beams.

515 - Steel Protective Coating 999 SF 169 0 481 349

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



Steel Pin and Pin & Hanger Assemblyor both

09/07/2016 8 EA 0 8 0 0161 Underwater

8 EA 0 8 0 0Migrated Values

Notes: [2015-2013] Pin and hanger assemblies show minor surface corrosion and paint oxidation. Ultrasonic examination of pins showed nocracks.


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



Reinforced Concrete Column 09/07/2016 4 EA 0 4 0 0205 Underwater


Notes: [2015] Light scale with 0.25" penetration throughout with some areas having 0.5" from waterline down.[2013] Scaling at wetted perimeter.

Page 8 of 15

Reinforced Concrete Abutment 09/07/2016 102 LF 102 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).[2015] Hairline vertical cracking on north abutment spaced 4'.[2013] Minor cracking, scaling, and spalling.

Wingwall notes: [2015-2013] Minor spalls and cracks.

Reinforced Concrete Pier Cap 09/07/2016 62 LF 62 0 0 0234 Underwater


Notes: [2015-2013] Minor cracks and scaling.

Strip Seal Expansion Joint 09/07/2016 112 LF 0 112 0 0300 Underwater


Notes: [2015] All joints are still functioning but unable to drain due to gravel buildup.[2013] Joints are all filled with gravel and adjacent concrete is spalling and cracking.

Pourable Joint Seal 09/07/2016 224 LF 0 224 0 0301 Underwater


Notes: [2015] Some sealant missing.[2013] Adjacent concrete is spalling and cracking.

Movable Bearing 09/07/2016 12 EA 8 4 0 0311 Underwater


Notes: [2015] Masonry plate on bearings 1 and 4 on both abutments has flaking rust present. Other bearings have minor paint failure with littlesurface corrosion.[2013] Bearings have flaking or failing paint. South abutment bearings have heavy rust.Some expansion bearings are rusting.Maintenance of bearing recommended.

Fixed Bearing 09/07/2016 4 EA 2 2 0 0313 Underwater


Notes: [2015] Some paint is flaking but there is little surface corrosion. More paint failure and surface corrosion on fascia bearings.[2013] Bearings have flaking or failing paint.

Metal Bridge Railing 09/07/2016 423 LF 0 423 0 0330 Underwater


Notes: [2015-2013] Chalking of protective coating.Metal Posts w/ Metal Channel Rail.4 bolts missing W. rail


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



Critical Deficiencies or Safety Hazards 09/07/2016 1 EA 1 0 0 0800 Underwater


Notes: [2015-2013] No critical findings during this inspection.

Concrete Decks - Cracking & Sealing 09/07/2016 0 LF 0 0 0 0810 Underwater


Notes: [2015] 1/16" deck cracks spaced 5' to 10' throughout deck.[2013] Cracks are of minor size but moderate density around deck joints.

Bituminous Approach Roadway 09/07/2016 2 EA 0 2 0 0822 Underwater


Notes: [2015-2013] Both approaches are spalled with deteriorated patches.


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Page 9 of 15

Secondary Members (Superstructure) 09/07/2016 45 EA 0 45 0 0855 Underwater


Notes: [2015-2013] Paint chalking and beginning to flake.Intermediate Diaphragms.

Steel Section Loss 09/07/2016 1 EA 1 0 0 0881 Underwater


Notes: [2015-2013] Beam ends at the hanger assemblies show pitting which has been arrested from paint. Isolated flaking rust in otherlocations.

Concrete Shear Cracking 09/07/2016 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 09/07/2016 1 EA 1 0 0 0885 Underwater


Notes: [2015] Minor scour around pier columns that are of little concern to the structural integrity of the bridge.

Other Bridge Signing 09/07/2016 1 EA 1 0 0 0891 Underwater


Notes: [2015] All signs present with no deterioration.[2013] Delineators.

Slopes & Slope Protection 09/07/2016 2 EA 2 0 0 0892 Underwater


Notes: [2015-2013] Slope below S abutment has eroded slightly.Riprap

Guardrail 09/07/2016 1 EA 1 0 0 0893 Underwater


Notes: [2015] No notable impact damage.[2013] Flex Beam w/ "Boxing Glove" ends.

Deck & Approach Drainage 09/07/2016 2 EA 0 2 0 0894 Underwater


Notes: [2015] Gravel along curbs affecting flow to drains. Spalls in deck holding water. Gravel in strip seal joints not allowing water to drain.[2013] Lots of gravel built up under guard rail.Gravel on deck needed to be removed.

Sidewalk, Curb, & Median 09/07/2016 1 EA 1 0 0 0895 Underwater


Notes: [2015-2013] SE corner damaged. Curb below bridge rail at poured deck joints is spalled and deteriorated.

Protected Species 09/07/2016 1 EA 1 0 0 0900 Underwater


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

General Notes: SLC District 3Inspected by: [2015] CG, TM : [2013] BH, JDO[2013] Snooper truck used.

58. Deck NBI:

36A. Brdg Railings NBI:

36B. Transitions NBI:

[2015] 4.5' by 1.5' area of exposed rebar span 3. Some concrete patches starting to spall. Few spalls have exposedreinforcement. Areas of delamination present around patches and spalls. No full depth failures imminent.[2013] Many potholes in deck remain with bit patching. Many potholes patched with concrete. Concrete degradation locatedat all deck joints at top and bottom of deck with map cracking, leaching, minor to moderate spall/delam, and water saturation.Rust staining of concrete noticed at top of deck and under deck at span 1


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Page 10 of 15


QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4


REPORT TYPE

Inspector's Signature Reviewer's Signature

Inventory Notes:

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:

[2015] Paint is starting to flake on bottom flange of interior beams with isolated surface corrosion. Top of bottom flange offascia beams has paint failure with surface corrosion present, but no flaking rust is present. Masonry plate on bearings 1 and 4on both abutments has flaking rust present.[2013] Beam ends at hanger assemblies who some areas of flaking rust and pitting of steel. Pitting has been painted over andarrested

[2015-2013] Minor spalling and scaling throughout with minor cracks. Slight erosion to the S abutment.

[2015] Banks are protected but minor scour holes present around pier columns.

[2015] High water mark half way up pier caps indicating about 3' or more of freeboard during high water.

[2015] No sight distance issues or speed reduction required.

Page 11 of 15

Photo 1 - Upstream Fascia, Looking Southwest

Photo 2 - Downstream Fascia, Looking Northeast

Pictures

Page 12 of 15

Pictures

Photo 3 - Pier 1, Looking North

Photo 4 - Pier 2, Looking South

Page 13 of 15

N

UNDERWATER BRIDGE INSPECTION

DEPARTMENT OF TRANSPORTATION

MINNESOTA

SOUNDING PLAN

Flo

w

South Abutment North AbutmentPier 1 Pier 2

(Typ.)

Shoreline

Legend

-7.0

Vermillion River

64'-0" 80'-0" 64'-0"

-5.2 -5.5 -6.0 -6.1-7.2

-4.9

-5.2 -5.2 -5.7 -4.9 -4.2

-7.4-7.1

-7.5 -7.5 -7.8 -7.8

Scour Depression

2

1

3

5

1

3

5 4

4

4

123 North Wacker Drive

Suite 900

Chicago, Il. 60606

(312) 704-9300

www.collinsengr.com

DRAWN BY: PRH

INSPECTION AND SOUNDING PLAN

-6.4-5.4

-4.9 -5.4

-6.9

-5.2 -5.6 -5.4-6.9

-4.9 -4.6

-6.9-6.1

-5.0-5.6-5.6

-5.9-5.2

-5.9-5.9

-6.2-4.1

-2.0 -1.9

-0.4 -3.9

-4.0

-4.0Sounding Depth from Waterline (6/19/16)Sounding Depth from Waterline (6/22/12)

All soundings are based on 2016 waterline location.

Notes:

DATE: JUNE 19, 2016

-2.1

-2.4 -2.0

-1.9

-8.6

CHECKED BY: LJ

CODE: 96877221

SCALE: NTS

FIGURE NO.: 1

OF PIERS

TYPICAL END VIEW

intervals between the substructure units.

Soundings were taken parallel to the bridge at 1/4 point4.

and are measured in feet.

Soundings indicate the water depth at the time of inspection3.

waterline elevation of 1209.4 based on design drawings.

at the upstream end of Pier 2. This corresponds to a

located approximately 7.1 feet below the top of the pier cap

At the time of inspection on June 19, 2016 the waterline was2.

Piers 1 and 2 were inspected underwater.1.

GENERAL NOTES:

were observed at the downstream columns of Piers 1 & 2.

scour depressions, 6 feet in radius and up to 1 foot deep,

were observed at the upstream columns of Piers 1 & 2. Also,

Scour depressions, 6 feet in radius and up to 2 feet deep, 5

6 inches of probe rod penetration.

in diameter and smaller, sandy silt, and gravel with up to

Channel bottom material consisted of scattered rocks 2 feet 4

typical) at upstream and downstream columns of Piers 1 & 2.

channel bottom with a 1/2 inch maximum penetration (1/4 inch

Scaling was observed from 1.5 feet above the waterline to the 3

channel bottom across the upstream column of Pier 2.

diameter logs (approx. 10 feet long each), was located on the

A light accumulation of timber debris, consisting of two 6 inch2

deterioration present.

Overall, the concrete surfaces were sound with no significant 1

INSPECTION NOTES:

DISTRICT 1, ST. LOUIS COUNTY

CSAH 24 OVER THE VERMILLION RIVER

STRUCTURE NO. 7221

Page 14 of 15

UNDERWATER BRIDGE INSPECTION

DEPARTMENT OF TRANSPORTATION

MINNESOTA

FASCIA PROFILES

UPSTREAM AND DOWNSTREAM

UPSTREAM FASCIA PROFILE

DOWNSTREAM FASCIA PROFILE

Refer to Figure 1 for General Notes.

Note:

ShorelineShoreline

64'-0" 80'-0" 64'-0"

~ W. Abutment ~ E. Abutment~ Pier 2~ Pier 2

El. 1197.6

B/Footing

ShorelineShoreline

64'-0" 80'-0" 64'-0"

~ W. Abutment ~ E. Abutment~ Pier 2~ Pier 2

El. 1197.97

B/Footing

El. 1197.6

B/FootingEl. 1197.97

B/Footing

DRAWN BY: PRH

CHECKED BY: LJ

123 North Wacker Drive

Suite 900

Chicago, Il. 60606

(312) 704-9300

www.collinsengr.com

W.L. El. 1209.4

W.L. El. 1209.4

FIGURE NO.: 2

DATE: JUNE 19, 2016

on 6/22/12

Channel Bottom

on 6/22/12

Channel Bottom

on 6/19/16

Channel Bottom

CODE: 96877221

SCALE: 1"=20'-0"

1220.0

1200.0

1180.0

1220.0

1200.0

1180.0

1220.0

1200.0

1180.0

on 6/19/16

Channel Bottom

1220.0

1200.0

1180.0

DISTRICT 1, ST. LOUIS COUNTY

CSAH 24 OVER THE VERMILLION RIVER

STRUCTURE NO. 7221

Page 15 of 15

Documents

BRIDGE # CSAH 24 over VERMILLION RIVER - … · Equipment - Olympus Epoch 600 portable ultrasonic flaw detector. 1/2" diameter 5 Mhz transducer. 30°-70°-70