bridge no - connecticut...underwater special frequency date type c two girder system, welded plate...

Inspection Type: Underwater

BRIDGE NO.04180

52980 - NEWTOWN

INTERSTATE 84 WESTBOUND

over

HOUSATONIC RIVER

Underwater Inspection

7/18/2018

InfrastructureInspected by:

Report Title Page 1

Location Map 2

Structure Inventory and Appraisal (BRI-19) 3

Underwater Inspection (BRI-59) 7

Underwater Inspection (BRI-58) 8

UW Drawings 12

Photos 22

Back-Up Material 33

TABLE OF CONTENTS

Section Page Number

Form: Location

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater

Infrastructure Engineers

Town:

Carried:

Crossed:Inventory Route:

Location Map # 1

Bridge No. 04180Interstate 84 Westbound over Housatonic

RiverNewtown, CT

Form: BRI-19, Rev. 2/15

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


STRUCTURE TYPE & MATERIALS

STRUCTURE INVENTORY & APPRAISAL

(90) Inspection Date

Indepth Insp Proposed next Indepth Year

Deck Survey Date Class

(91) Frequency

Bridge Name

Sufficiency Rating

Access Flagman

INSPECTION

Fracture

Underwater

Special

TypeFrequency Date

C Two GirderSystem, welded plategirders

24

B Underwater Only24 07/18/2018

IDENTIFICATION

No

03

24

81.0

15 - Over 40 ft.reach 0

(43) Structure Type, Main

A) Material

B) Design Type

(44) Structure Type, Approach

4 - Steel continuous

03 - Girder and Floorbeam System

A) Material

B) Design Type

0 - Other

00 - Other

(45) Number of Spans, Main Unit

(46) Number of Approach Spans

(107) Deck Structure Type

4

0

1 - Concrete Cast-in-Place

(108) Wearing Surface/Protection Systems

A) Type of Wearing Surface

B) Type of Membrane

C) Type of Deck Protection

Substructure

A) Material

B) Design Type

2 - CONCRETE

1 - FULL HEIGHT STEM

6 - Bituminous

2 - Preformed Fabric

0 - None

Paint

Type

Year

Comment

GEOMETRIC DATA

Town Code - Name

(5) Inventory Route

(B) Signing Prefix

(A) Record Type

(D) Route Number.

(E) Dir Suffix

1 - INTERSTATE HIGHWAY

1: Route carried "on" the structure

4 - WEST

00084

ROCHAMBEAU BRIDGE

52980 - NEWTOWN

(C) Level of Service 1 - MAINLINE

(6A) Featured Intersected HOUSATONIC RIVER

(6B) Critical Facility Indicator

(7) Facility Carried

(9) Location

(16) Latitude


Miles

1.5 MI EAST OF EXIT 11

(11) Mile Post 18.42

Deg. Min. Sec.212641

(17) Longitude Deg. Min. Sec.5314-73

(98) Border Bridge

(A) State Code (B) Percent Responsibility

(C) Border Town Name

(99) Border Bridge Structure No.

(48) Length of Maximum Span

(49) Structure Length

ft.

ft.792

224

(50) Curb or Sidewalk Widths

A) Left ft.0 B) Right ft.0

(51) Bridge Roadway Width Curb to Curb ft.60

(52) Deck Width, Out to Out ft.63

(32) Approach Roadway Width ft.50

in.9

in.0 in.0

Structurally Deficient N Functionally Obsolete N

%

in.0


Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


AGE AND SERVICE(33) Bridge Median 0 - No median

Deck Area sq. ft.50529

(34) Skew Angle

(35) Structure Flared

0

0 - No flare

(10) Inv. Rte. Min. Vert. Clearance ft.99

(47) Inv. Rte. Total Horiz. Clr. ft.60

Log Inv. Rte. Total Horiz. Clr. ft.60

RLog Inv. Rte. Total Horiz. Clr. ft.0

(53) Min. Vert. Clearence Over Bridge ft.99

(54) Log-Min. Vert. Underclearance ft.ref. 0N

(55) Min. Lat Underclearance on Right ft.ref. 0N

(56) Min. Lat Underclearance on Left ft.0

APPRAISALS

Year Built 1977 (106) Year Reconstructed

(42) Type of Service

A) On 1 - Highway

B) Under 5 - Waterway

(28) Number of Lanes

A) On 02 B) Under 00

(29) Average Daily Traffic

Is Above Half ADT?

(109) Precent Truck

(30) Years of ADT

(19) Bypass, Detour Length

36650

Yes

9

2015

CONDITION

(58) Deck

(59) Superstructure

(60) Substructure

(61) Channel & Channel Protections

(62) Culverts

5

5

6

5

N

(36) Traffic Safety Features

A) Bridge Railings

B) Transitions

C) Approach Guardrail

D) Approach Guardrail Ends

0

0

1

1

(67) Structural Evaluation

(68) Deck Geometry

(69) Underclearances, Vert. & Horiz.

(71) Waterway Adequacy

(72) Approach Roadway Alignment

(113) Scour Critical

5

9

N

9

8

8

COMMENTS

Special inspection: Horizontal cracking along floorbeams &main girders.

CLASSIFICATIONWATERWAY

(112) NBIS Bridge Length

(104) Highway System

(26) Functional Class

(100) Defense Highway

(101) Parallel Structure

(102) Direction of Traffic

Yes

1 - Structure/Route is on NHS

01 - Rural - Principal Arterial - Interstate

1 - Is on an Interstate STRAHNET route

L - Left structure (South or West)

1 - 1-way traffic

Drainage Basin Waterway

(38) Navigation Control

(39) Navigation Vertical Clearance

(40) Navigation Horiz. Clr.

(111) Pier/Abutment Navigation

6000 - Housatonic River

0 - No navigation controlon waterway (bridge permitnot required)

0 ft.

ft.0

2 - In place and functioning

Miles1

%

in.99

in.0

in.0

in.0

in.99

in.0

in.0

in.0

(116) Vert-Lift Brg Nav Min 0 ft. 0 In.

deg.


Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


(103) Temporary Structure

(110) Designated NationalNetwork

(20) Toll

(21) Maintain

(22) Owner

Report Class

(37) Historical Significance

1 - Inventory route on National TruckNetwork

3 - On Free Road

01 - State Highway Agency

01 - State Highway Agency

S - STATE

5 - Not eligible for National Register

PROPOSED IMPROVEMENTS

(75A) Type of Work Proposed

(75B) Work Done By

(76) Length of Structure Improvement

(94) Bridge Improvement Cost $

(95) Roadway Improvement Cost $

(96) Total Project Cost $

(97) Year of Improvement Estimate

(114) Future ADT

(115) Year of Future ADT

DOT Bridge Program List No

Project No

Advertised Date

35 - Rehabilitation -Deterioration1 - Work to be done bycontract

30000

2014

54458

2035

27

0096-0201

09/18/2019

ft.

LOAD RATING & POSTING

POSTED SIGNS

Other Posted Sign 1

Other Posted Sign 2

Actual Recomended

Posted Load Single Unit Truck

Posted Load Semi-Trailer Truck

Posted Load 4 Axle Truck

Posted Load 3S2 Truck

All Vehicles

tons

tons

tons

tons

tons

Posted Vert. Clearance on Bridge

Posted Vert. Underclearance

Posted Speed Limit on Bridge

ft. in.

ft. in.

m.p.h.

OTHER FEATURES

Fence Required

Fence Present

Fence Height

Fence Material

Fence Top Type

Barrel Ladders

Stand Pipes

Catwalks

Moveable Inspection System

Haunches Present over Roadway

Utilities

No

No

Blank

Blank

Yes

No

Yes

No

NO

(31) Design Load

(63) Operating Rating Type

(64) Operating Rating

(65) Inventory Rating Type

(66) Inventory Rating

Evaluation Code

Year of Evaluation

(70) Bridge Posting

(41) Structure Status

5 - HS 20

1 - Load Factor (LF)

60

1 - Load Factor (LF)

36

L - Load Factor

1995

5 - Equal to or above legal loads

A - OpenFence Type Blank

N | No Utilities present


Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


INSPECTOR'S SIGNATURES:

3) Date:

08/14/2018

4) Date:

08/17/2018

1) Date:

2) Date:

P.E. SIGNATURE: Date: 08/17/2018

P.E. #

Date: 09/04/2018Reviewed By:

27367

Type of water:

Underwater Inspections performed in conjunction with Bridge No. 01218.

Boat ramp located at the end of Scout Road in Southbury.

Fresh

Minor aquatic growth and zebra mussels up to 1" thick.Marine Growth:

YesDive Station Used?

Access to Bridge:

Access/ Equipment Comments U/W:

Boat

8.0'

Current Strength:

U/W Visibility:

Cobbles, silt, river rock, and sand with up to 5.0' penetration into the channel bottom.Bottom Composition:

25.0'Max Water Depth:

Max Water Depth at Pier Or Abutment:

1.0 fps

25.0'

Carried:52980 - NEWTOWN Crossed:INTERSTATE 84 WESTBOUND04180

UNDERWATER INSPECTION (BRI-59)

Town:Bridge:

Boat Used?

3

Yes

26'Boat Size:

HOUSATONIC RIVER

Total Number of Piers:

Piers in the Water:

3

ITEM RATING REMARKS

60. SUBSTRUCTURE

ABUTMENT 1:

STEM

FOOTING

EROSION

SETTLEMENT

SCOUR

WINGWALLS

General Remarks:

N

N

N

N

N

N

N

South Abutment. Located out of the channel.

6 REINFORCED CONCRETE ABUTMENTS AND PIERS

ABUTMENT 2:

STEM

FOOTING

EROSION

SETTLEMENT

SCOUR

WINGWALLS

General Remarks:

N

N

N

N

N

N

N

North Abutment. Located out of the channel.

UNDERWATER INSPECTION

PIER NO.

PILES

STEM

FOOTING

6

N

6

6

• There is no exposure of the steel H-piles.

The reinforced concrete pier has the following deficiencies:

• 5' high band of abrasion up to 1/4" deep extending from 1' above to 4' below the water surface.• Horizontal cracks up to 17' long x up to 1/2” wide along the cold joints above and below water.• Near the midpoint of the footing on both faces there is a vertical hairline crack x 5' long withefflorescence.• The north face has isolated vertical hairline cracks x up to 2' long throughout.• Random areas of Zebra mussels up to 50% coverage x 1" thick.

(See UW Drawings 5 & 6 and Photos 3 - 5)

The step footing has the following deficiencies:

• Step footing exposed over its full-length x up to full-height (5.4’ high) along both faces of the pier.• Footing exposed up to 5.1’ vertically over a length of 37’ along the pier on both faces with noundermining.• Isolated vertical hairline cracks up to 5' long with efflorescence.

(See UW Drawings 5 & 6 and Photos 6 & 7)

• Channel elevations have varied around the pier with an increase by up to 1.9', this is possibly due tothe timber surrounding the pier.• Along the north face of the pier, there is a 20' length of sheet pile exposure up to 6' high located 5'off the pier face.• The Step Footing is exposed over its full-length x up to full-height (5.4’ high) along both faces of thepier,• Footing has been exposed up to 5.1’ vertically (previously 5.0' high) over a length of 37’ on bothfaces of the pier.

(See UW Drawings 5 & 6)

1

Form: BRI-58.

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


09/04/2018 Page 1 of 4

Form: BRI-58.

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


SCOUR

SETTLEMENT

6

8

• Channel elevations have varied around the pier with an increase by up to 1.9', this is possibly due tothe timber surrounding the pier.• Along the north face of the pier, there is a 20' length of sheet pile exposure up to 6' high located 5'off the pier face.• The Step Footing is exposed over its full-length x up to full-height (5.4’ high) along both faces of thepier,• Footing has been exposed up to 5.1’ vertically (previously 5.0' high) over a length of 37’ on bothfaces of the pier.


• No apparent settlement observed.

General Remarks:

PIER NO.

PILES

STEM

FOOTING

SCOUR

SETTLEMENT

6

N

7

6

5

8



• 5' high band of abrasion up to 1/4" deep extending from 1' above to 4' below the water surface.• There are steel H-piles intermittently exposed along the stem located above the step footing(formwork left in place from construction).• Random areas of Zebra mussels up to 50% coverage x 1" thick.

(See UW Drawings 7 & 8 and Photos 8 - 10)

The step footing and footing have the following deficiencies:

• The step footing is exposed over its full-length x up to full-height (5.0’ high) on both faces of the pier.• The footing has been exposed full length x up to full-height (5.5’ high) on the south face and fulllength x up to 1.7’ high (previously 0.2' high) on the north face of the pier with no undermining.• The tremie seal has been exposed up to 1.0’ long across the full-width of the Upstream (West) Noseand over 2’ long x 0.5' high at the southwest corner of the pier.• Random vertical hairline cracks up to 3’ long with efflorescence on the footing.• Isolated edge spalls on the footing up to 2’ long x 4” wide x up to 4” deep.• At the center of the Downstream (South) face of the step footing there is a spall 18" long x 1' wide x4" deep.• At the southwest corner of the footing/tremie interface there is a spall 2' long x 4" high x 3" deep.


• Channel elevations surrounding Pier 2 has had aggradation of up to 3.1' with isolated areas ofdegradation up to 3.0'.• The step footing is exposed full length x up to full-height (5.0’ high) on both faces of the pier.• The footing has been exposed over its full-length x up to full-height (5.5’ high) on the south face andfull length x up to 1.7’ high on the north face of the pier.• The Tremie Seal has been exposed up to 1.0’ high (previously 0.9' high) across the full-width of theUpstream (West) Nose and over 2’ long x 0.5' high at the southwest corner of the pier.



General Remarks:

2

PIER NO.

PILES

STEM

6

N

7



• Band of abrasion up to 1/4" deep extending from 1' above the water surface down to the channelbottom.• The north face towards the Upstream (West) Nose of the pier there is a 1.7' long vertical hairlinecrack below the construction joint.


3

09/04/2018 Page 2 of 4

Form: BRI-58.

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


61. CHANNEL & CHANNEL PROTECTION:

CHANNEL SCOUR

EMBANKMENT EROSION

DEBRIS

VEGETATION

CHANNEL CHANGE

FENDER SYSTEM

SPUR DIKES & JETTIES

5

5

7

5

7

7

N

N

The Housatonic River is a fresh body of water that flows from West to East beneath the structure.

• Channel bottom elevations along the upstream and downstream fascias have random areas of mostlyaggradation up to 4.0' since the 2016 Underwater Inspection.• Channel bottom elevations at Pier 1 have varied around the pier with an increase by up to 1.9', this ispossibly due to the timber surrounding the pier since the 2016 Underwater Inspection.• Channel bottom elevations at Pier 2 show evidence of aggradation of up to 3.1' with isolated areas ofdegradation up to 3.0' since the 2016 Underwater Inspection.• Channel bottom elevations at Pier 3 south face have remained relatively unchanged (less than 0.6’variations) as compared to the 2016 Underwater Inspections.• Channel bottom elevations at Pier 3 show evidence of degradation of up to 3.0' along the north face of thepier most likely due to the sandbar that was noted in the previous 2016 Underwater Inspection.• At Piers 1 and 2, the step footing and footing have been exposed due to scour.• At Pier 1, the step footing is exposed over its full-length x up to full-height (5.4’ high) along both faces ofthe pier, and the footing has been exposed up to 5.1’ vertically (previously 5.0' high) over a length of 37’ onboth faces of the pier.• At Pier 2, the step footing is exposed over its full-length x up to full-height (5.0’ high) on both faces of thepier and the footing has been exposed over its full-length x up to full-height (5.5’ high) on the south face andfull length x up to 1.7’ high (previously 0.2' high) on the north face of the pier.• At Pier 2 the Tremie Seal has been exposed up to 1.0’ high (previously 0.9') across the full-width of theupstream (west) nose and over 2’ long x up to 0.5' high at the southwest corner of the pier.• There is no exposure of the footings at Pier 3.

(See UW Drawings 1 - 10)

• There is no significant erosion along the channel embankments.

(See Photos 19 & 20)

• There is timber debris up to 1' diameter at the upstream (west) and downstream (east) noses of Pier 1.• There is moderate timber debris up to 2' diameter along the north face of Pier 1.• There is timber debris up to 1' diameter at the upstream (west) nose of Pier 2.

• The channel embankments are well vegetated.

• There is no apparent change to the channel orientation.• Bridge No. 01218 is located approximately 40' downstream (East) of the bridge.• There is approximately a 150’ long x 20’ wide x 3’ high sandbar/area of aggradation located north of Pier 3.

(See UW Drawings 1 - 3 and Photos 16 - 18)

RIP RAP N

FOOTING

SCOUR

SETTLEMENT

N

7

8


• Band of abrasion up to 1/4" deep extending from 1' above the water surface down to the channelbottom.• The north face towards the Upstream (West) Nose of the pier there is a 1.7' long vertical hairlinecrack below the construction joint.


• There is no exposure of the step footing or footing at the pier.• There is a section of sheet pile exposed up to 6" high along the south face of the pier approximately12.5' off the pier face.

(See UW Drawing 3)

• Channel bottom elevations have remained relatively unchanged (less than 0.6’ variations) except forscour up to 3.0' along the north face of the pier since 2016 Inspection.



General Remarks:

09/04/2018 Page 3 of 4

Form: BRI-58.

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


General Remarks: The navigation lights on Pier 1, Span 2 Fascia and Pier 2 and the west bridge fascia appear to be on timers and were not on at thetime of the inspection.

(Photos 20 -22)

09/04/2018 Page 4 of 4

N.T.S.

C L

MATCH LINE A-A

50'+/- 25'+/- 15'+/- 10'+/- 15'+/- 25'+/- 50'+/-10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/-

25'+/-

15'+/-

10'+/-

10'+/-

15'+/-

25'+/-

BRIDGE 04180- PIER 1 BRIDGE 01218- PIER 1

FLOWAND FOOTING

EXPOSED STEP-FOOTING

AND FOOTING


-17.7'

-17.0'

-18.2'

-18.0'

-18.7'

-19.6'

-20.6'

-27.1'

-19.6'

-17.8'

-19.1'

-18.6'

-20.0'

-21.0'

-22.4'

-26.8'

-21.6'

-19.2'

-19.6'

-19.7'

-20.6'

-22.3'

-23.3'

-26.7'

-22.8'

-21.1'

-24.6'

-20.3'

-21.8'

-23.1'

-24.2'

-26.7'

-24.0'

-24.6'

-24.8'

-29.2'

-24.9'

-25.8'

-27.7'

-25.7'

-26.5'

-25.3'

-27.1'

-27.0'

-24.4'

-27.5'

-27.3'

-26.6'

-27.6'

-27.9'

-25.6'

-24.8'

-25.0'

-26.9'

-25.6'

-25.8'

-25.5'

-26.8'

-26.0'

-25.6'

-25.3'

-27.0'

-25.8'

-26.1'

-26.2'

-26.7'

-25.8'

-26.1'

-26.5'

-26.8'

-25.6'

-26.1'

-26.3'

-26.9'

-25.8'

-27.0'

-26.9'

-26.8'

-26.0'

-27.2'

-27.1'

-27.1'

-24.3'

-27.6'

-27.6'

-26.8'

-20.6'

-24.1'

-24.0'

-26.2'

-21.3'

-25.4'

-24.2'

-25.6'

-27.6'

-24.5'

-25.6'

-24.4'

-30.7'

-30.4'

-27.0'

-29.2'

-29.9'

-27.1'

-28.0'

-28.6'

-26.5'

-25.9'

-27.0'

-26.6'

-27.4'

-27.1'

-25.1'

-30.1'

-28.8'

-24.9'

-26.6' -25.1' -31.5' -22.9' -26.5' -31.2'

UW

DR

AWIN

G

1

-28.4'

-26.6'

-24.7'

-24.4'

-31.1'

-29.5'

-24.6'

-31.9'

CONNECTICUT DEPARTMENT OF TRANSPORTATION

CONNECTICUT

AS SHOWN

SCALE: DATE OF INSPECTION

BRIDGE NO. 04180

REVISED BY: FHDRAWING NO.

INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822

ROUTE 84 WESTBOUND OVER HOUSATONIC RIVER

NEWTOWN

SOUNDING PLAN

LEGEND FOR BOTTOM ELEVATIONS

-0.0'JULY. 2016:

JULY. 2018: -0.0'

-23.9'

-24.1'

-26.5'

-26.2'

-23.9'

-25.7'

-26.8'

-26.3'

-26.6'

-26.9'

-25.0'

-25.3'

-25.3'

-26.1'

-24.3'-27.3'

-27.2'

1.0'

-26.3'-29.0'

1.0'

-28.3'-28.9'

0.8'

-29.3'-28.5'

0.1'

-27.3'-29.8'-28.3'

0.3'

-30.2'

-28.3'

0.1'

-29.2'

-29.3'

0.1'

-30.4'

-29.3'

0.2'

-29.2'

-27.8'

1.6'

-28.1'

-27.3'

1.0'

-27.2'

-25.3'

2.0'

-26.3'-24.3'

3.0'

-26.5'-25.1'

-26.1'-25.8'

-27.1'-26.7'

-23.5'-25.3'

-22.4'-23.3'

-29.9'-29.3'

SOUNDING PLAN

04180 AINSPECTED BY: JK, MB, JW

07 / 18 / 18

LEGEND FOR SYMBOLS

W.S. ELEV. -7.3'

DEPTH OF PENETRATION 0.0'

OF THE NORTH FACE OF PIER 1

TOP OF THE PIER AT THE CENTERLINE

CONSTRUCTION JOINT DOWN FROM THE

EASTBOUND BRIDGE 01218 AT THE SECOND

DATUM ELEV. 0.0' TAKEN FROM THE

-7.3'

-32.1' -30.4' -28.8' -24.1' -23.4'

-36.3' -31.3' -27.3' -24.3' -23.3'

0.2' 0.2' 0.2' 0.2' 0.2'

-32.6'-26.1'

-27.1'

-28.5'

-26.9'

-25.3'

-23.9'

-25.8'

-25.4'

-27.2'

-23.3'

-22.3'

-23.6'

-24.8'

0.2'

-22.3'

-21.6'

0.2'

-24.6'

-26.3'

0.2'

-25.0'-27.9'-32.5'

-34.3' -31.3' -27.3'

0.2'0.2'0.2'

-36.3'-34.1'

0.0'

-23.8'-24.1'

-23.3'-20.3'

-24.9'

-26.2'

-26.6'

-23.5'

-26.9'

-26.1'-26.6'

-26.8'

-26.8'-25.5'

-26.3'

-26.5'

OFF PIER FACE)

EXPOSURE OF SHEET PILING (5'

20'L x 9'H (INSIDE) 5'H (OUTSIDE)

TIMBER DEBRIS

OF UP TO 2' DIAMETER

MODERATE BUILD-UP

TIMBER DEBRIS

15'L x 1' DIAMETER

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

0.0'

N.T.S.

C L

MATCH LINE A-A

BRIDGE 01218- PIER 2BRIDGE 04180- PIER 2

50'+/- 25'+/- 15'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 15'+/- 25'+/- 50'+/-25'+/-

15'+/-

10'+/-

50'+/-

10'+/-

15'+/-

25'+/-

MATCH LINE B-B

FLOW

AND FOOTING


AND FOOTING


-28.6'

-27.2'

-29.0'

-24.9'

-23.7'

-24.4'

-14.9'

-22.1'

-22.4'

-17.9'

-13.6'

-28.1'

-26.1'

-26.9'

-24.6'

-21.4'

-20.6'

-17.9'

-12.9'

-27.2'

-25.5'

-26.1'

-23.9'

-21.6'

-19.9'

-15.5'

-12.9'

-27.0'

-26.0'

-26.0'

-23.6'

-11.3'

-15.7'

-19.1'

-26.8'

-11.1'

-15.3'

-19.8'

-25.8'

-11.0'

-15.0'

-20.0'

-25.1'

-11.4'

-14.2'

-16.4'

-21.1'

-11.4'

-12.9'

-14.4'

-16.2'

-11.5'

-12.6'

-12.8'

-16.5'

-26.9'

-27.6'

-30.4'

-27.1'

-27.8'

-30.9'

-26.8'

-27.8'

-29.6'

-26.5'

-26.6'

-27.7'

-26.6'

-23.8'

-24.6'

-26.8'

-23.3'

-22.5'

-26.3'

-23.3'

-22.4'

-26.5'

-22.7'

-21.1'

-26.3'

-23.0'

-20.6'

-26.0'

-22.3'

-21.4'

-25.0'

-23.6'

-21.4'

-25.1'

-22.7'

-22.5'

-22.8' -20.1' -19.1'

-24.6'

-21.9'

-23.0'

-12.2' -12.6' -12.3' -13.2' -14.7' -15.6' -16.5'

-12.9' -13.1' -13.5' -13.8' -14.2' -14.4' -14.4'

-11.6' -11.6' -11.6' -11.8' -11.9' -11.2' -12.3'

-16.3' -13.6' -14.1' -13.1' -16.2' -16.2' -16.5'

-20.2' -21.0' -19.8' -18.0'

UW

DR

AWIN

G

2

-20.1'


CONNECTICUT

AS SHOWN


BRIDGE NO. 04180


INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN

SOUNDING PLAN

04180 B

SOUNDING PLAN

-12.3'

-13.3'

-10.3'

-14.2'-13.2'

-12.5'

-13.8'

-11.5'

1.0'

-15.8' -17.2' -16.2' -14.2' -14.4'-21.3' -21.3' -19.8' -19.8' -16.3'

0.1'0.1'0.2'0.3'0.3'

-14.7'-13.5'

-12.1'

-12.6'

-11.5'-11.3'

-12.3'

-12.0'

1.0'

-21.6'-22.3'

0.3'

-22.3' -21.8' -21.3' -20.5' -18.8'

0.6'

-21.7' -22.3' -20.7' -19.6' -18.3'

0.3' 0.4' 0.2' 0.3'

-16.3'-17.2'

0.1'

-26.1'

-23.6'

-21.2'

-25.0'

-24.4'

-20.9'

-26.7'

-23.7'

-22.2'-21.2'

-26.0'

-26.1'

-11.4'

-16.2'

-19.1'

-11.0'

-14.3'

-17.6'

1.0'

3.0'

1.0'

-25.3'

-21.7'

3.0'

-11.3'

-14.5'

-19.3'

-24.1'

-19.6'

-23.5'

-14.9'

-11.0'

-27.6' -27.5' -27.7' -25.5'-30.6' -25.3' -25.8' -25.3'

2.0'2.0'0.2'3.0'

-23.8'-23.3'

2.0'

-21.3'-24.4'

5.0'

-27.8'

3.0'

-26.3'

-33.6' -30.3' -29.9' -29.5'

0.0' 0.0' 0.0'

-31.3' -31.3' -28.3' -27.3'

0.3'

0.2'

-32.3'-33.9'

-26.6'

-26.8'

-32.2'-32.3'

-25.3'

-26.3' -25.5'

-23.4'

-25.3'

-26.5'

-27.4'

-28.6'

LEGEND FOR SYMBOLS








-0.0'JULY. 2016:

JULY. 2018: -0.0'

W.S. ELEV. -7.3'

-7.3'

UP TO 1' DIAMETER

HEAVY TIMBER DEBRIS

INSPECTED BY: JK, MB, JW

07 / 18 / 18

0.0'

0.0'

0.0'

0.0'

0.0'

0.0' 0.0'

0.0'

0.0'

NOSE AND SOUTHWEST CORNER

TREMIE SEAL EXPOSED AT THE

N.T.S.

C L

BRIDGE 01218- PIER 3

50'+/- 25'+/- 15'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 10'+/- 15'+/- 25'+/- 50'+/-25'+/-

15'+/-

10'+/-

50'+/-

10'+/-

15'+/-

25'+/-

MATCH LINE B-B

(TYPICAL)

SHORELINE

BRIDGE 04180- PIER 3

12.5'

FLOWELEV. -8.2'EXPOSED SHEET PILE

-10.3'

-9.2'

-7.6'

-7.8'

-5.5' -5.3'

-6.3'

-7.7'

-8.8'

-10.3'

-5.3'

-6.3'

-7.7'

-8.7'

-10.1'

-5.8'

-7.3'

-7.7'

-8.4'

-10.3' -11.0' -11.1' -10.4' -10.8' -9.1' -9.3' -10.0' -10.3' -10.3' -9.9' -9.3' -10.5' -10.4'

-8.6' -8.5' -8.5' -8.4' -8.5' -8.6' -8.8' -8.7' -8.4' -8.3' -8.1' -7.8' -8.2'

-7.7' -7.8' -7.6' -7.7' -7.7' -7.6' -7.9' -8.0' -8.1' -7.6' -7.6' -7.8' -8.2'

-7.1' -7.2'

-4.3' -5.3' -5.3' -6.3' -6.3' -6.8' -7.6' -7.7' -7.8' -7.7' -7.9' -8.2' -8.5'

-7.6' -7.4' -8.0' -8.3'

UW

DR

AWIN

G

3

-7.4' -7.7' -7.8' -8.0' -8.3' -8.5' -8.7'-7.8'

x 3'H SANDBAR150'L x UP TO 20'W

-7.4'


CONNECTICUT

AS SHOWN


BRIDGE NO. 04180


INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN

-10.4'

-8.3'

-7.6'

-9.5'

-8.3'

-8.3'

-9.7'

-8.9'

-7.9'

-9.6'

-8.8'

-8.0'

0.4'

0.5'

0.7'

-8.7'

1.0'

-8.9'-9.9'

-9.3'

1.0'

-8.3'

-9.3'

0.5'

-8.4'

1.1'

-8.8'-8.4'

0.7'

-8.8'-8.6'

1.0'

-8.7'

0.4'

-9.9'-8.8'

-9.1' -8.4' -7.8' -7.6'

1.0' 1.0' 1.0' 2.5'

-8.8' -8.3' -8.0' -7.8'-8.1'

2.0'

-8.3'

30'

-7.7'

-7.4'-7.8'

-7.8'

1.0'

1.0' -7.7'

-7.9'-8.1'

-8.0'

-10.4'

-10.4'

0.1'

-10.2'

-8.6'-9.0'

-10.5'

-8.6'

-8.5'

0.1'

-7.7'

-7.5'

0.1'

-8.0'

-8.2'

-6.9'

0.1'

-7.5'

-5.3' -5.3' -4.3'-6.3' -6.3' -7.3'

-3.3'-6.3'

-8.0'

0.1'

-8.2'

0.1'

-7.8'

-8.2'

-7.6'

-8.1'

0.1'

-7.7'

-7.7'

-3.3'

0.1'

0.1'

-6.3'

-8.2'

-7.8'

-7.7'

-8.2'

0.1'

-3.3'

-6.3'

-6.3'

-5.8'

-6.3'

-6.3'

SOUNDING PLAN

04180 C

SOUNDING PLAN

LEGEND FOR SYMBOLS








-0.0'JULY. 2016:

JULY. 2018: -0.0'

W.S. ELEV. -7.3'

-7.3'


07 / 18 / 18

0.0'

0.0'

N.T.S.

PIER 2

(PER PLANS)TOP OF TREMIE ELEV. -36.3'

(PER PLANS)BOTTOM OF TREMIE ELEV. -42.3'





(PER PLANS)TOP OF FOOTING ELEV. -16.3'

(MEASURED)TOP OF STEP-FOOTING ELEV. -22.5'

(MEASURED)TOP OF FOOTING ELEV. -27.5'

PIER 3

PIER 1

W.S. ELEV.

ELEV. -19.4' (MEASURED)TOP OF STEP-FOOTING

-3.3' -3.3'

-7.7'

-7.7'

-7.7'

-8.6'

-10.4'-11.4'

-16.2'

-19.1'

-25.3'

-27.6' -32.2'

-26.8'

-33.6'

-33.9'

-26.6' -26.5'

-24.1'-23.9'

-24.3'

-30.2'

-22.4'-29.9'

-23.5'

-29.2'

-29.8'

-7.3'

0.0'

UW

DR

AWIN

G

4

0.1'

0.1'


CONNECTICUT

AS SHOWN


BRIDGE NO. 04180


INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN

LEGEND FOR SYMBOLS








-0.0'JULY. 2016:

JULY. 2018: -0.0'

W.S. ELEV. -7.3'

-7.3'

LEGEND FOR MUDLINE ELEVATIONS

JULY 2016

JULY 2018

UPSTREAM (WEST) ELEVATION

04180 D

UPSTREAM (WEST) ELEVATION

07 / 18 / 18


-6.3' -6.3'

-8.2'

-7.8'

-8.2'

-10.4'

-8.5'

-11.0'

-14.3'

-17.6'

-21.7'

-30.6'

-31.3'

-32.3'

-26.3'

-25.3'

-32.3'

-26.2'

-25.7'-23.9'

-27.3'

-28.3'

-28.3'

-29.3'

-29.3' -23.3'

-25.3'

-6.3'

0.1'

0.1'

0.1'1.0'

3.0'

1.0'

3.0'

3.0'

0.2'

0.3'

0.1'

0.1'

ABUTMENT 2ABUTMENT 1

ELEV. -10.3' (PER PLANS)TOP OF STEP-FOOTING 0.0' 0.0'

0.0'

0.0'

0.0' 0.0'

0.0'

0.0'

0.0'

0.0'0.0'

0.0'

ELEV. -24.8' (MEASURED)TOP OF FOOTING

N.T.S.

~ CONCRETE ~

NOTE:

CONSTRUCTION JOINT

(TYP.)

STEEL "H" PILES

FLOW

(PER PLANS)

BOTTOM OF TREMIE ELEV. -42.3'

(PER PLANS)

TOP OF TREMIE ELEV. -36.3'

PIER 1 (SOUTH) ELEVATION

04180 E


W.S. ELEV.

(MEASURED) (PREVIOUSLY NOTED AS 21.5')

TOP OF STEP FOOTING ELEV. -19.4'

(MEASURED) (PREVIOUSLY NOTED AS 26.5')

TOP OF FOOTING ELEV. -24.8'

HAIRLINE CRACK

7'L VERTICAL

CRACK

HORIZONTAL

3'L x 1/16"W IN COLD JOINT

HORIZONTAL CRACK

6'L x UP TO 1/2"W

WITH EFFLORESCENCE

HAIRLINE CRACK

5'L VERTICAL

COLD JOINT

HORIZONTAL CRACK IN

13.0'L x UP TO 1/8"W

3'

-30.2'

-30.4'

-29.2' -28.1'

-26.3'

-7.3'

UW

DR

AWIN

G

5

-29.2'

-27.2'

0.1'

FULL LENGTH x UP TO FULL HEIGHTSTEP FOOTING EXPOSED


CONNECTICUT

AS SHOWN


DRAWING NO.

BRIDGE NO. 04180

REVISED BY: FH

INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN

-24.3'

-25.3'-27.3'-27.8'

-29.3'

-28.3'

-29.3'



JULY. 2018

-0.0'JULY. 2016:

JULY. 2018: -0.0'

JULY. 2016

LEGEND FOR SYMBOLS







W.S. ELEV. -7.3'

-7.3'

07 / 18 / 18


0.1'

0.2'

1.6' 1.0'

2.0'

3.0'

37'L x UP TO 4.8'H

FOOTING EXPOSED

X 1" THICK ON UNDERWATER SUBSTRUCTURE.

RANDOM AREAS OF ZEBRA MUSSELS UP TO 50% COVERAGE3.

TO 1' ABOVE.

ABRASION UP TO 1/4"D FROM 4' BELOW WATER SURFACE2.

BOTTOM.

AND DOWNSTREAM NOSE ALONG THE CHANNEL

TIMBER DEBRIS UP TO 1' DIA. AT THE UPSTREAM 1.

N.T.S.

~ CONCRETE ~

NOTE:

(PER PLANS)


FLOW

(PER PLANS)


COLD JOINT

HORIZONTAL CRACK IN

17.0'L x UP TO 1/4"W

CONSTRUCTION JOINT

04180 F

PIER 1 (NORTH) ELEVATION

W.S. ELEV.

(MEASURED) (PREVIOUSLY NOTED AS -18.4')




IN COLD JOINT

HORIZONTAL CRACK

4'L x UP TO 1/4"W

WITH EFFLORESCENCE

5'H VERTICAL HAIRLINE CRACK

3'

(TYP.)

STEEL "H" PILES

-26.3'

-29.0' -28.9'

-28.5'

-30.2'

-7.3'

UW

DR

AWIN

G

6

-27.2'

-29.8'

0.1'

1.0'

1.0' 0.8'

FULL LENGTH x UP TO FULL HEIGHT

STEP FOOTING EXPOSED


CONNECTICUT

AS SHOWN


DRAWING NO.

BRIDGE NO. 04180

REVISED BY: FH

INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN



JULY. 2018

-0.0'JULY. 2016:

JULY. 2018: -0.0'

JULY. 2016

LEGEND FOR SYMBOLS







W.S. ELEV. -7.3'

-7.3'


07 / 18 / 18


-28.3'

-28.3'

-27.3'

-29.3'

-24.3'-26.3'

-28.3'3.0'

0.3'

0.1'

40'L x UP TO 3.7'H

FOOTING EXPOSED

3.5' WIDE

EXPOSURE 5.1'H

MAXIMUM VERTICAL

X 1" THICK ON UNDERWATER SUBSTRUCTURE.

RANDOM AREAS OF ZEBRA MUSSEL UP TO 50% COVERAGE5.

9' HIGH (INSIDE), 5'H (OUTSIDE).

20' LONG SHEET PILING 5' OFF OF THE FOOTING UP TO4.

UP TO 2' LONG.

PIER STEM DISPLAYS ISOLATED VERTICAL HAIRLINE CRACKS3.

TO 1' ABOVE.

ABRASION UP TO 1/4" DEEP FROM 4' BELOW WATER SURFACE2.

UP TO 2' DIA. ALONG THE SOUTH FACE.

DOWNSTREAM NOSE ALONG THE CHANNEL BOTTOM, AND

TIMBER DEBRIS UP TO 1' DIA. AT THE UPSTREAM AND 1.

N.T.S.

~ CONCRETE ~

H H

NOTE:

CONSTRUCTION JOINT

(TYP.)

STEEL "H" PILES

FLOWH PILE (TYPICAL)

(PER PLANS)



04180 G






(PER PLANS)


UP TO 1.0'L x 4"W x 4"D

A FEW EDGE SPALLS

FOOTING INTERFACE

SPALL AT TREMIE/

2'L x 4"H x 3"D

EFFLORESCENCE

CRACK WITH

1.5'L HAIRLINE

WITH EFFLORESCENCE

2'L HAIRLINE CRACK

WITH EFLORESCENCE

3'L HAIRLINE CRACK

W.S. ELEV.

UW

DR

AWIN

G

7

-33.9' -30.3'-29.9' -29.5'

-24.4'

-7.3'

0.0'

0.0'

-33.6'

0.0'-27.8'




CONNECTICUT

AS SHOWN


DRAWING NO.

BRIDGE NO. 04180

REVISED BY: FH

INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN

TREMIE HAS IRREGULAR SURFACE

-32.3'

-31.3'

-31.3'

-28.3' -27.3'

-26.3'

-21.3'

6' WIDE

ON CENTER OF SOUTH FACE

18"L x 1'W x 4"D SPALL

0.2'

0.3'

3.0'

5.0'



JULY. 2018

-0.0'JULY. 2016:

JULY. 2018: -0.0'

JULY. 2016

07 / 18 / 18


LEGEND FOR SYMBOLS







W.S. ELEV. -7.3'

-7.3'


FOOTING EXPOSED

1'H x FULL WIDTH OF WEST NOSE

ON SOUTH FACE AND

UP TO 0.5'H x 2'L

TREMIE SEAL EXPOSED

SUBSTRUCTURE.

50% COVERAGE x 1" THICK ON UNDERWATER

RANDOM AREAS OF ZEBRA MUSSELS UP TO3.

TO 1.0' ABOVE THE WATER SURFACE.

ABRASION UP TO 1/8" DEEP FROM 4' BELOW 2.

UPSTREAM NOSE ALONG CHANNEL BOTTOM.

HEAVY TIMBER DEBRIS UP TO 1' DIA. AT THE 1.

N.T.S.

~ CONCRETE ~

FLOW

H H

H PILE (TYPICAL)

NOTE:

CONSTRUCTION JOINT

(TYP.)

STEEL "H" PILES

(PER PLANS)


(PER PLANS)


W.S. ELEV.


04180 H






-24.4'

-25.5'

-27.7'

-27.5'

-33.9'

-7.3'

UW

DR

AWIN

G

8

-23.8'

-27.6'



0.9'H x FULL WIDTH OF NOSE

TREMIE SEAL EXPOSED UP TO


CONNECTICUT

AS SHOWN


DRAWING NO.

BRIDGE NO. 04180

REVISED BY: FH

INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN


07 / 18 / 18

LEGEND FOR SYMBOLS







W.S. ELEV. -7.3'

-7.3'



JULY. 2018

-0.0'JULY. 2016:

JULY. 2018: -0.0'

JULY. 2016

-21.3'

-23.3'-25.3'

-25.8'

-25.3'

-30.6'

-32.3'

5.0'

2.0'

2.0'

2.0'

0.2'

3.0'

0.2'

FULL LENGTH x UP TO 1.7'

FOOTING EXPOSED

SUBSTRUCTURE.

50% COVERAGE x 1" THICK ON UNDERWATER

RANDOM AREAS OF ZEBRA MUSSELS UP TO3.

WATER SURFACE TO 1' ABOVE.

ABRASION UP TO 1/4" DEEP FROM 4' BELOW THE 2.

UPSTREAM NOSE ALONG CHANNEL BOTTOM.

HEAVY TIMBER DEBRIS UP TO 1' DIA. AT THE1.

~ CONCRETE ~

(PER PLANS)


(PER PLANS)


CONSTRUCTION JOINT

(TYP.)

STEEL "H" PILES

NOTES:

(PER PLANS)


(PER PLANS)


FLOW

W.S. ELEV.

UW

DR

AWIN

G

9

-7.7'

-8.0' -7.8' -7.6'-7.5'

-7.3'

0.1'

0.1' 0.1'

0.1'

-7.7'

0.1'

-6.9'

0.1'


CONNECTICUT

AS SHOWN


DRAWING NO.

BRIDGE NO. 04180

REVISED BY: FH

INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN

-7.8'

-8.2'

-8.2' -8.2' -8.1'-8.0' -7.5'

N.T.S.





JULY. 2018

-0.0'JULY. 2016:

JULY. 2018: -0.0'

JULY. 2016

LEGEND FOR SYMBOLS







W.S. ELEV. -7.3'

-7.3'

07 / 18 / 18


0.1'

04180 I

ABOVE THE WATER SURFACE.

ABRASION UP TO 1/4" DEEP FROM MUDLINE TO 1.0'1.

~ CONCRETE ~

N.T.S.

CONSTRUCTION JOINT

NOTES:

(PER PLANS)


(TYP.)

STEEL "H" PILES

(PER PLANS)


(PER PLANS)


04180 J

CRACK

1.7'L HAIRLINE

UW

DR

AWIN

G

10

-3.3' -4.3' -5.3' -5.3'-3.3'

-7.7'

0.1'

-6.9'

0.1'

(PER PLANS)


FLOW


CONNECTICUT

AS SHOWN


DRAWING NO.

BRIDGE NO. 04180

REVISED BY: FH

INC.

INFRASTRUCTURE

ENGINEERS,

1-888-451-6822


NEWTOWN

-6.3'

-7.5'

-7.3' -6.3'-6.3' -6.3'

-7.8'



JULY. 2018

-0.0'JULY. 2016:

JULY. 2018: -0.0'

JULY. 2016

LEGEND FOR SYMBOLS







W.S. ELEV. -7.3'

-7.3'


07 / 18 / 18



W.S. ELEV. -7.3'

ABOVE THE WATER SURFACE.

ABRASION UP TO 1/4" DEEP FROM MUDLINE TO 1.0'1.

Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Upstream (North) Bridge ElevationPhoto Number: 1 Photo Taken: 07/18/2018

Downstream (South) Bridge ElevationPhoto Number: 2 Photo Taken: 07/18/2018

Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Pier 1 South ElevationPhoto Number: 3 Photo Taken: 07/18/2018

Pier 1 North ElevationPhoto Number: 4 Photo Taken: 07/18/2018

Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Pier 1 South Elevation Stem

Note: Zebra mussels on pier.

Photo Number: 5 Photo Taken: 07/18/2018

Pier 1 at Upstream Sothwest Corner

Note: Exposed step and footing.


Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Pier 1 at North Side Near Centerline

Note: Sheet piling.



Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:



Pier 2 Upstream South Elevation

Note: Exposed footing and step.


Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Pier 2 Upstream Nose

Note: Exposed tremie.



Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:



Channel Looking (West) UpstreamPhoto Number: 14 Photo Taken: 07/18/2018

Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Channel Looking (East) DownstreamPhoto Number: 15 Photo Taken: 07/18/2018

Northwest Channel EmbankmentPhoto Number: 16 Photo Taken: 07/18/2018

Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Northeast Channel EmbankmentPhoto Number: 17 Photo Taken: 07/18/2018

Southwest Channel EmbankmentPhoto Number: 18 Photo Taken: 07/18/2018

Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Southeast Channel EmbankmentPhoto Number: 19 Photo Taken: 07/18/2018

Navigational Light Pier 1 (Upstream)Photo Number: 20 Photo Taken: 07/18/2018

Form: Asset Photos

Inspection type:

Inspection Date:

Inspected by:

7/18/2018

Bridge No: 04180

NEWTOWN


HOUSATONIC RIVER

NHS

Underwater


Town:

Carried:


Navigational Light Span 2 (Upstream)Photo Number: 21 Photo Taken: 07/18/2018

Navigational Light Pier 2 (Upstream)Photo Number: 22 Photo Taken: 07/18/2018

BACK‐UP MATERIAL

By: Infrastructure Engineers

CS1 CS2 CS3 CS4

210 Mod. Reinforced Concrete Pier Wall 42 LF 0 21 21 0

1130 Cracking 21 LF 21

1190 Abrasion / Wear (PSC/RC) 21 LF 21

220 Mod. Reinforced Concrete Pile Cap/Footing 42 LF 0 0 42 0

6000 Scour 42 LF 42

210 Mod. Reinforced Concrete Pier Wall 42 EA 0 42 0 0


220 Mod. Reinforced Concrete Pile Cap/Footing 42 LF 0 0 42 0

6000 Scour 42 LF 42

210 Mod. Reinforced Concrete Pier Wall 42 LF 0 42 0 0


SUBSTRUCTURE

Pier 1

• 5' high band of abrasion up to 1/4" deep extending from 1' above to 4' below the water surface.

• Horizontal cracks up to 17' long x up to 1/2” wide along the cold joints above and below water.

• Near the midpoint of the footing on both faces there is a vertical hairline crack x 5' long with efflorescence.

• The North face has isolated vertical hairline cracks x up to 2' long throughout.

• Zebra mussels up to full height x 1" thick.

• Step Footing exposed over its full-length x up to full-height (5.4’ high) along both faces of the pier.

• Footing exposed up to 5.1’ vertically over a length of 37’ on the pier.

• Isolated vertical hairline cracks up to 5' long with efflorescence.

NATIONAL BRIDGE ELEMENTS RECORDING SHEET *

Element

/Str. Unit No.Env Element/Structure Unit Description

Structure No. 04180 Date: 7/18/2018

Condition State QuantityTotal

Qty.Units

• 5' high band of abrasion up to 1/4" deep extending from 1' above to 4' below the water surface.

• There are steel H-piles intermittently exposed along the stem located above the step footing (formwork left in place from construction).

• Random areas of Zebra mussels up to 50% coverage x 1" thick.

• The step footing is exposed over its full-length x up to full-height (5.0’ high) on both faces of the pier.

• The footing has been exposed full length x up to full-height (5.5’ high) on the South face and full length x up to 1.7’ high on the North face of the pier,

• The Tremie Seal has been exposed up to 1.0’ long across the full-width of the Upstream (West) nose and over 2’ long x 0.5' high at the Southwest

corner of the pier.

• Random vertical hairline cracks up to 3’ long with efflorescence on the footing.

• Isolated edge spalls on the footing up to 2’ long x 4” wide x up to 4” deep.

• At the center of the Downstream (South) face of the Step Footing there is a spall 18" long x 1' wide x 4" deep.

• At the Southwest corner of the Footing/Tremie interface there is a spall 2' long x 4" high x 3" deep.

Pier 3

• Band of abrasion up to 1/4" deep extending from 1' above the water surface down to the channel bottom.

• Random areas of Zebra mussels up to 50% coverage x 1" thick.

• The North face towards the Upstream (West) nose of the pier there is a 1.7' long vertical hairline crack below the construction joint.

• There is no exposure of the Step Footing or Footing at the pier.

• There is a section of sheet pile exposed up to 6" high along the South face of the pier approximately 12.5' off the pier face

* Includes only defects on Piers 1 through 3 from the high water mark to the channel bottom.

Pier 2

Report CoverTable of ContentsReport Title PageLocation MapStructure Inventory and Appraisal (BRI-19)Underwater Inspection (BRI-59)Underwater Inspection (BRI-58)UW DrawingsPhotosBack-Up Material

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