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:

24542

LAKEVIEW BLVD over FOUNTAIN LAKE

District 6 Freeborn Albert Lea

06/16/2016

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 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. 24542, Piers 1 and 2, were found to be in good condition. The steel piles exhibited only light surface corrosion with no structural deficiencies. The channel bottom material consisted of silty sand with scattered 6 inch to 24 inch diameter riprap.

(A) The steel pile casings typically exhibited loss of paint coating and light surface corrosion from waterline to the channel bottom.

(B) The channel bottom material typically consisted of silty sand with 2 inches of probe rod penetration and scattered 6 inch to 24 inch diameter riprap.

INSPECTION FINDINGS

Page 3 of 15

The bottom of the pier cap on the upstream nose of Pier 1.Water Level Reference:

WATERLINE DATUM

Waterline Elevation (feet):

The waterline was approximately 3.2 feet below reference.Description:

1215.72

4.

Piers 1 and 2 Substructure(s) Inspected:

SUBSTRUCTURE INSPECTION DATA

General Shape:

4.8Maximum Water Depth at Substructure(s) Inspected (feet):

The abutments each consist of a reinforced concrete breastwall and two perpendicular reinforced concrete wingwalls. The piers each consist of a single line of 8 steel encased Cast-In-Place concrete piles.

Code:Item 62: Culvert:

8

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 6District:

LAKEVIEW BLVD

County:

The bridge consists of three spans of precast concrete double-tees. The superstructure is supported by two reinforced concrete abutments and two steel encased pile bents. The bents are labeled Piers 1 and 2 starting from the westerly direction.

Bridge Description:

024 - Freeborn

Facility Carried:

BRIDGE DATA1.

UNDERWATER INSPECTION

Bridge #:

FOUNTAIN LAKEFeature Intersected:

24542

Underwater Visibility (feet):

Cloudy, 60°FWeather Conditions:

0.5 ft

3.

None/Negligible Waterway Velocity (ft/sec):

06/16/2016

Professional Engineer/Team Leader:

INSPECTION DATA2.

Roy A. Forsyth

Date of Underwater Inspection:

Marc SternInspection Diver:

Page 4 of 15

885 Scour 1 EA 1

STRUCTURAL ELEMENT CONDITION RATING

Conditions

6.

L

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

Cast-In-Place (CIP) Piling 1616 EA

CS2ELEM # Unit CS1Element Description Quantity

Page 5 of 15

The routine underwater inspection of Bridge 24542 (Lakeview Blvd. over the Fountain Lake) was completed on June 16, 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. Due to waterway conditions at the time of inspection, the inspection could be accomplished by wading 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 piers with 8 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 bottom 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

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 60Culvert Type 3 - FTG PILE

Pinned Asbly.

06/16/2016

Barrel Length

93.6 ft. Navigation Control

Waterway Opening (sf.) 312Structure Length

ft. Year Painted

0 - No nav. control on waterwayDeck Width (Out-to-Out) 58.3

+ P A I N T +

APPR: 0 TOTAL:5 - Not eligible

MAIN: 3

Main Span Length 36.0 ft.Drainage Area (sq. mi.) 37.5

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

N - NOT REQUIRED+ M I S C.

Appr. Span Type Structure Flared

GR Termini N - NOT REQUIRED

Appr. Guardrail

Main Span Type 2 - Concrete Continuous Median Width On Bridge

ft. Bridge Railing 1 - MEETS STANDARDS

N - NOT REQUIRED

Main Span Design 09 - Slab 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 4/1/20093372 sq. ft. Traffic

ft. 50B. Rt 10.00Sidewalk Width 50A. Lt 10.00

Roadway Area (Curb-to-Curb)

Posted Load 0 - Not Required

PostingStructure Area (Out-to-Out) 5473 sq. ft.

DBL:VEH: SEMI:

Rt 01 ARail Type Lt 01 C N - N/AN - N/A B N - N/A

N - Not Applicable Overweight Permit CodesCurb Height Lt

ft. Horizontal 0 - Not Required

0.66 ft. Vertical0.66 ft. Rt

0Wear Surf Install Year

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

L - STBL - LOW RISK

Year 2004Primer Type MN Scour Code

Painted Area

Unsound Paint % Nav. Clr. (ft.)

1 - Not required

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 22.1

40.3Deck Rebars Install Year 2004

Deck Rebars

Finish TypeWear Course/Fill Depth ft.

0 - None

Design Load A - HL 93

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

43 ° 39

Inspector Name Forsyth, Roy

Latitude Control Section (TH Only) Status' 40.82 ''

2 - 2-way traffic

Routine Inspection Frequency 24

Sect., Twp., Range

0.6 MI S OF JCT CSAH 20 Level of Service 1 - MAINLINE

- 21W Roadway Type5 - 102N

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 N° 23 '

A - Open

Longitude 93 000+00.970 + N B I 7.63 '' Reference Point

Crew

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

Agency Br. No. 129

District 06

Bridge Match ID (TIS) 0 Userkey

LAKEVIEW BLVD over FOUNTAIN LAKE

Minnesota Structure Inventory Report

Bridge ID: 24542

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

Date: 07/25/2016

Sufficiency Rating 98.7Roadway Name or Description

111

City Albert Lea

Routine Inspection Date 05/12/2016

Desc. Loc.

Township LAKEVIEW BLVD(MSAS 111)

Number

NRoadway O/U Key Route On StructureMaint. Area 6B Structurally Deficient

NRoute Sys 05 - MSASCounty 024 - Freeborn Functionally Obsolete

Lanes

Waterway Adequacy 9Max. Vert. Clear.

ft.Legislative District 27Aft.Potential ABC 2 - N/A ft.

ft.On - Off System Roadway Width 36.00 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 36.0

36.0 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 2004

MN Year Reconstructed Functional Class

%Channel 8

Substructure

0Superstructure 6

ON 2 UNDER

3594 YEAR 2008BMU Agreement ADT

Structure Evaluation 6If Divided

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

Deck Geometry 5NB-EB SB-WBDate Opened to Traffic

+ R D W Y

FHWA Year Reconstructed

MN Temporary Status

16 - Urban - Minor ArterialCulvert N

A P P R A I S A L R A T I N G S +N - Not Applicable + 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:

Freeborn

Albert Lea

102N5 21W

2 - Concrete Continuous 1 - Slab

6 6 7 8 N

8 9

0 - Not Required

0 - Not Required

0 - Not Required

N - Not Applicable

L - STBL - LOW RISK

0.6 MI S OF JCT CSAH 20

05 - MSAS 111 000+00.970

6B

93.6

58.3

3372 sq. ft. / %

sq. ft. / %

N/A

A - Open

ft.

ft.

Postings:List:

MINNESOTA BRIDGE INSPECTION REPORT

09/14/2016

Inspector: CO Bridge

BRIDGE 24542 LAKEVIEW BLVD OVER FOUNTAIN LAKE

Unofficial Structurally Deficient N

NUnofficial Functionally Obsolete

Unofficial Sufficiency Rating 98.7

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4REPORT TYPE

Reinforced Concrete Slab 07/25/2016 5473 SF 5445 28 0 038 Underwater

05/12/2016 5473 SF 5445 28 0 0Routine

Notes: All three spans have full length longitudinal cracks beneath the deck with leeching.[2014] - cracks are 0.016" in width[2016] - 28sf of leaching cracks (0.016" in width)

510 - Wearing Surfaces 3372 SF 3372 0 0 0

Notes: Concrete Slab with Cathodic Protection System Notes: There are no spalls, delaminations, or patches noted in the surface of the deck.[2014, 2016] - no change

Underwater 07/25/2016

3372 SF 3372 0 0 0Routine 05/12/2016

Reinforced Concrete Abutment 07/25/2016 160 LF 150 10 0 0215 Underwater

05/12/2016 160 LF 150 10 0 0Routine

Notes: North Abutment[2012] - 2 vertical cracks in the NW wing.[2014] - 4 minor cracks (<.002" in width) in face of abutment[2016] - no change

South Abutment[2012] - 1 vertical crack in the SW wing. 1 vertical / 1 diagonal crack in the SE wing.[2014] - 3 minor cracks (<.002" in width) in face of abutment[2016] - no change

Steel Pile 07/25/2016 16 EA 0 16 0 0225 Underwater

05/12/2016 16 EA 0 16 0 0Routine

Notes: Pier # 1 - all CIP piling were in good condition at the time of this inspection with only a few small minor chips. CIP pilings 1, 2, 4, 6 & 8have small 2" diameter patched holes on both north and south sides located approximately 2' down from the bottom of the cap, the holes wereplaced and patched during the construction to aid in the construction of the cap.[2014] - no change[2016] - no structural damage or section loss

Pier # 2 - all CIP piling were in good condition at the time of this inspection with only a few small minor chips. CIP pilings 1, 2, 4, 6 & 8 havesmall 2" diameter patched holes on both north and south sides located approximately 2' down from the bottom of the cap, the holes were placedand patched during the construction to aid in the construction of the cap.[2014] - no change[2016] - no structural damage or section loss

515 - Steel Protective Coating 250 SF 125 125 0 0

Notes: [2016] - minor paint deterioration on bottom half of CIPs

Underwater 07/25/2016

250 SF 125 125 0 0Routine 05/12/2016

Page 8 of 15

Reinforced Concrete Pier Cap 07/25/2016 114 LF 114 0 0 0234 Underwater

05/12/2016 114 LF 114 0 0 0Routine

Notes: There are no cracks or spalls in the pier caps.

[2014, 2016] - no change

Pourable Joint Seal 07/25/2016 76 LF 76 0 0 0301 Underwater

05/12/2016 76 LF 76 0 0 0Routine

Notes: The pourable joints are the approach panel joints.

[2016] - all joints are sealed

Reinforced Concrete Approach Slab 07/25/2016 1440 SF 1436 4 0 0321 Underwater

05/12/2016 1440 SF 1436 4 0 0Routine

Notes: North Approach - There are no signs of approach panel settlement. There is one full length unsealed longitudinal crack and scatteredrandom cracks all unsealed.

South Approach - There are no signs of approach panel settlement. There is one full length unsealed longitudinal crack. The curb along thewest side has a cracked and delaminated area approximately 3 feet in length and a small delaminated area along the end of the deck. [2014] -curb has been replaced

[2014, 20160 LF of moderate sized, sealed cracks on both approaches.

Metal Bridge Railing 07/25/2016 235 LF 212 23 0 0330 Underwater

05/12/2016 235 LF 212 23 0 0Routine

Notes: The railing is 28" high concrete base with a 26" high painted steel rail attached to the concrete.

[2016] - N structural damage to railing. Anchorages are secure.

515 - Steel Protective Coating 430 SF 430 0 0 0

Notes: [2016] - paint on railing and posts is slightly faded but in good condition.

Underwater 07/25/2016

430 SF 430 0 0 0Routine 05/12/2016

Reinforced Concrete Bridge Railing 07/25/2016 265 LF 240 25 0 0331 Underwater

05/12/2016 265 LF 240 25 0 0Routine

Notes: The railing is 28" high concrete base with a 26" high painted steel rail attached to the concrete.

East Side Rail - There are 5 scattered vertical cracks in the concrete rail. There is an area of short random cracks and a small delamination atthe top of the concrete rail under the 8th steel rail post counting from the south end of the bridge.[2014] - There are 23 scattered vertical cracks in the concrete rail.[2016] - no change

West Side Rail - There are up to 2 vertical cracks per rail section.[2014] - There are up to 2 vertical cracks per rail section. There is a small area of delam under the 4th post from the south[2016] - no change

Critical Deficiencies or Safety Hazards 07/25/2016 1 EA 1 0 0 0800 Underwater

05/12/2016 1 EA 1 0 0 0Routine

Notes: [2014, 2016] - No critical findings were observed at the time of this inspection.

Concrete Decks - Cracking & Sealing 07/25/2016 250 LF 250 0 0 0810 Underwater

05/12/2016 250 LF 250 0 0 0Routine

Notes: Deck cracks were open again at the time of this inspection.[2012] - deck cracks are open.[2014] - 260 LF of moderately sized, sealed and unsealed cracks.[2016] - 250 lf of moderately sized, sealed cracks.

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4

BRIDGE 24542 LAKEVIEW BLVD OVER FOUNTAIN LAKE

REPORT TYPE

Page 9 of 15

Approach Relief Joint 07/25/2016 76 LF 4 8 64 0816 Underwater

05/12/2016 76 LF 4 8 64 0Routine

Notes: North End[2016] - 34lf of joint is missing and filled with bituminous

South End[2016] - 8lf of lost adhesion. 30lf of joint is missing and filled with bituminous

Scour 07/25/2016 1 EA 1 0 0 0885 Underwater

Slopes & Slope Protection 07/25/2016 1 EA 1 0 0 0892 Underwater

05/12/2016 1 EA 1 0 0 0Routine

Notes: There is a 4' X 8' area along the north slope under the bridge where the rip-rap has been displaced.[2014, 2016] - most riprap is present and in good condition

Deck & Approach Drainage 07/25/2016 1 EA 1 0 0 0894 Underwater

05/12/2016 1 EA 1 0 0 0Routine

Notes: [2014, 2016] - There is no ponding of water on the deck. All deck drains were open at the time of inspection.

Sidewalk, Curb, & Median 07/25/2016 1 EA 1 0 0 0895 Underwater

05/12/2016 1 EA 1 0 0 0Routine

Notes: All sidewalk cracks were sealed in 2007. The west sidewalk has scattered areas of scaled concrete.2012 - open cracks in sidewalks.[2014] - 12"x6" area of crack/spall on SE approach sidewalk. sidewalk is settled 1/2". NW approach sidewalk is cracked and settled. soundslike a possible void under the 1st panel off of the bridge.[2016] - NW sidewalk and curb has been patched. Random cracks in both sidewalks have been sealed.

Miscellaneous Items 07/25/2016 1 EA 1 0 0 0899 Underwater

05/12/2016 1 EA 1 0 0 0Routine

Notes: [2014] - there are 4 lights under the center span for boat traffic

Protected Species 07/25/2016 1 EA 0 1 0 0900 Underwater

05/12/2016 1 EA 0 1 0 0Routine

Notes: [2016] - Swallow nests are present

General Notes: Bridge 24542

Bridge was built in 2004 and replaced Bridge 90495.

All spans and piers and numbered from the south.

Channel - NBI 8 Banks were well protected at the time of this inspection.

Bridge is inspected by MN/DOT personnel.

[2010] - inspected by Robert Pyfferoen. An extra inspection was done off the ice on 2/3/2010 by Brian Haugen and PeteMcFarland.[2012] - inspected by Tom Miles.[2014] - inspected by Tom Miles and assisted by Tony Bale[2016] - inspected by Robert Pyfferoen

58. Deck NBI:

36A. Brdg Railings NBI:

36B. Transitions NBI:

36C. Appr Guardrail NBI:

36D. Appr GuardrailTerminal NBI:

[2014] - moderate sized cracks

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4

BRIDGE 24542 LAKEVIEW BLVD OVER FOUNTAIN LAKE

REPORT TYPE

Page 10 of 15

ELEMNBR ELEMENT NAME INSP. DATE QUANTITY

QTYCS 1

QTYCS 2

QTYCS 3

QTYCS 4

BRIDGE 24542 LAKEVIEW BLVD OVER FOUNTAIN LAKE

REPORT TYPE

Inspector's Signature Reviewer's Signature

Inventory Notes:

59. Superstructure NBI:

60. Substructure NBI:

61. Channel NBI:

62. Culvert NBI:

71. Waterway Adeq NBI:

72. Appr RoadwayAlignment NBI:

[2014] - minor cracking on underside and railings.

[2014] - minor sized cracks

[2014] - well protected

[2016] - no speed reduction required

Page 11 of 15

Photo 2 - View of West Abutment, looking west.

Photo 3 - View of East Abutment, looking east.

Pictures

Page 12 of 15

Pictures

Photo 4 - View of Pier 1, looking east.

Photo 5 - View of Pier 2, looking west.

Page 13 of 15

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