2026-15 Flood Protection Project - WPCF_Part11.pdf.crdownload

CRDOWNLOAD file 2 MB Posted Feb 4, 2026

Attached to: Flood Protection Project - Water Pollution Control Facility
Solicitation number: BID 2026-15
Issued by: Fairfield County, Connecticut

About this file

Written by GovTribe AI · Feb 5, 2026

2026-15 Flood Protection Project - Water Pollution Control Facility, Stratford, Connecticut

This is a comprehensive design drawing package for the Town of Stratford's Water Pollution Control Facility flood protection system improvements project. The project involves the design and construction of flood protection infrastructure spanning 3,100 linear feet around the Water Pollution Control Facility located at 105 Beacon Point Road, Stratford, Connecticut. The scope of work includes removal of existing stone riprap, excavation to approximately 3-4 feet depth, drilling of both auger cast piles (24" diameter) and drilled micropiles (12.75" diameter), formation and pouring of concrete pile caps and reinforced concrete flood walls, placement of fill material for earthen embankment construction, installation of a 288-linear-foot gabion wall, reinstallation of stone riprap protection, and comprehensive site restoration. The project incorporates six concrete flood wall segments (Walls 1-6), three deployable flood gate systems (Gates A, B, and C) with modular storage containers, perforated underdrains, concrete pile cap foundations with varying configurations based on site conditions, and erosion and sediment control measures throughout construction. The drawings indicate the project is issued for bidding as of January 29, 2026, with a non-mandatory pre-bid conference scheduled for Tuesday, February 17, 2026 at 1:30 PM at the facility.

The project design addresses flood risk mitigation at the water pollution control facility by establishing flood walls at elevation 17.0 to 18.0 NAVD88 (North American Vertical Datum of 1988) to protect critical infrastructure from coastal flooding and storm surge associated with the Housatonic River. The design incorporates sophisticated foundation systems with pile embedment depths varying from approximately 31 to 68 feet depending on location and soil conditions, reinforced concrete specifications calling for 5,000 PSI concrete at 28 days with epoxy-coated reinforcing bars meeting ASTM standards, and deployable flood gate systems designed to withstand simultaneous hydrostatic loads of 800 pounds per linear foot, hydrodynamic loads of 2,239 pounds per linear foot, and debris impact loads of 13,900 pounds. The drawing package includes 55 sheets comprising work plans, grading plans, proposed profiles and sections, foundation plans, typical wall sections for various configurations, erosion control details, gate system specifications, and architectural finish schedules for multiple additive alternates. Bids must be submitted in hardcopy format (not electronically), with all work coordinated in compliance with Connecticut Department of Energy and Environmental Protection permits, 2002 Connecticut Guidelines for Soil Erosion and Sediment Control, and applicable federal and state stormwater management regulations.

Text of this file

PLPLPLPLPLPL

PL PL

X X

X X X X

X X

X X X X

X X X X X X X X

X X

XXXXX

NORTH ROAD

D S

E Y

E S

T R

E E

T B

S E

Y E

S T

R E

E T

SOUTH ROAD

N O

R O

A D

ACCESS D

RIV

O A

OUTFALL

INV=6.66

(NAVD88)

OUTFALL

INV=-5.6

(NAVD88)

OUTFALL

INV=-0.55

(NAVD88)

XXXXX

A N

L SH

ELTER

D R

A Y

D-2

A-2

A-1

A-3

A-4

A-8

B-2

B-3 B-1

C-10

C-6

C-5

C-8

C-14

G-2

D-1

E-3E-2

E-1

F-1

F-2

F-3

F-4 F-5

A-6

A-7 A-16

A-17

A-18

A-5

A-15

B-4 B-5

B-6 B-7

B-10

B-9B-8

C-1

C-2 C-3

C-4

C-7

C-9

C-11

G-1

C-12C-13

BEACON POINT ROAD

ACCESS D

RIV

ZONE AE (E

L 14)

ZONE VE (E

L 13)

TP-1

TP-5

TP-3

TP-4

TP-6

TP-2

PL PL PL PL PL PL

BIT. CONC.

BIRDSEYE LAUNCHING RAMP

AND FISHING PIER

ANIMAL

SHELTER

BUILDING

PUBLIC

WORKS

YARD

ANOXIC TANKS

BIOFILTER

SECONDARY SETTLING

TANK NO.1

SECONDARY SETTLING

TANK NO. 2

RAW SEWAGE PUMPING STATION,INLET WORKS, & GENERATOR

AERATION TANKS

SECONDARY SETTLING

TANK NO. 3

CONTROL B

UILD

ING

MAINTENANCE GARAGE

SLUDGE DEWATERING

BUILDING

SLUDGE

HOLDING

TANKS

PUMP

STATIO

WET

WELL

WETLAND BOUNDARY

SLUDGE

THICKENER

AE DISTRIBUTION BOX

METHANOL

FACILITIES

C Y

ATO

STONE

HEADWALL

BLOWER BUILDING & RETURN

PUMPING STATION

PRIMARY TANK #3

PRIMARY TANK #2

PRIMARY TANK #1

SODA ASH FEED SYSTEM

SUBSTATION

UV DISINFECTION

EFFLUENT DISTRIBUTION BOX

LOAD

BANK

STORMWATER

BASIN OVERFLOW

RIPRAP SPILLWAY

EXISTING DIKE

UNDERDRAIN

EXISTING DIKE

UNDERDRAIN

SUBSTATION

X X X X

X X

FLOOD

EBB

HOUSATONIC RIVER

X X X

1+00

2+00

3+00

4+00 5+00

6+00

7+00

8+00 9+00

10+00

11+00

+00

16+00

17+0018+00 19+00

20+00

21+00

22+0023+00

24+00

25+00

26+00

27+00

28+00

29+00

BP: 0+00.00

EP: 30+98.62

N: 625177.2788 E: 896190.4558

PI: 1+65.72

N: 625327.9119 E: 896121.3805

PI: 5+34.28

N: 625685.8666 E: 896058.7071

PI: 7+95.91

N: 625942.1639 E: 896111.2642

PI: 10+52.56

N: 626197.4198 E: 896137.9441

PI: 11+12.56

N: 626230.7198 E: 896187.8551

PI: 12+20.06

N: 626226.0176 E: 896295.2536

PI: 13+88.04

N: 626270.0595 E: 896434.9379

PI: 14+89.10

N: 626264.7095 E: 896535.8523

PI: 15+09.73

N: 626249.4249 E: 896549.7072

PI: 15+98.62

N: 626160.6236 E: 896545.6994

PI: 16+52.09

N: 626157.9728 E: 896599.0992

PI: 16+58.85

N: 626151.2190 E: 896598.7639

PI: 18+71.08

N: 625939.0844 E: 896592.4458

PI: 19+42.94

N: 625868.4367 E: 896605.6125

PI: 20+14.81

N: 625802.1476 E: 896633.3649

PI: 20+86.67

N: 625743.1916 E: 896674.4579

PI: 21+74.86

N: 625676.5869 E: 896732.2686

PI: 21+91.05

N: 625664.7812 E: 896743.3366

PI: 22+46.13

N: 625627.1044 E: 896703.1486

PI: 22+93.64

N: 625591.0736 E: 896734.1159

PI: 23+45.91

N: 625542.0978 E: 896752.3807

PI: 29+66.41

N: 625220.7050 E: 896315.3287

PI: 13+77.77

N: 626263.1852 E: 896427.2989

PC: 3+52.97

N: 625505.1714 E: 896061.0186

PC: 12+47.09

N: 626251.5634 E: 896304.0818

PC: 24+10.70

N: 625478.7328 E: 896765.8567

PT: 3+87.84

N: 625539.4588 E: 896055.7017

PT: 12+79.36

N: 626268.3630 E: 896329.0260

PT: 25+53.27

N: 625364.1521 E: 896702.7655

Mid: 3+70.41 N: 625522.0827 E: 896056.8617

Mid: 12+63.22 N: 626264.1334 E: 896313.7453

Mid: 24+81.98 N: 625409.6967 E: 896755.6427

N 0 20 40 80 120

SCALE IN FEET

CJL = 5.0 NAVD88

SHTL = 3.4 NAVD88

GABION WALL, TOW =9.0 NAVD88

CONCRETE FLOOD WALL

WALL-1, TOW = 17.0 NAVD88

6" PERF. UNDERDRAIN (TYP.)

CONCRETE FLOOD WALL

WALL-6, TOW = 17.0 NAVD88

CONCRETE FLOOD WALL

WALL-5, TOW = 17.0 NAVD88

CONCRETE FLOOD WALL

WALL-4, TOW = 17.0 NAVD88

CONCRETE FLOOD WALL

WALL-3, TOW = 18.0 NAVD88

CONCRETE FLOOD WALL

WALL-2, TOW = 17.0 NAVD88

DEPLOYABLE FLOOD GATE SYSTEM

GATE-C, TOW = 17.0 NAVD88

DEPLOYABLE FLOOD GATE SYSTEM

GATE-B, TOW = 17.0 NAVD88

DEPLOYABLE FLOOD GATE SYSTEM,

GATE-A, TOW = 17.0 NAVD88

RIPRAP PROTECTION ON FLOOD SIDE DIKE AND

FLOODWALL EMBANKMENT SLOPE AND CREST (TYP.)

INSTALL STORWATER

PIPE CHECK VALVE

NOTE: FLOODWALL FOUNDATIONS ARE NOT

SHOWN ON THIS SHEET FOR DRAWING CLARITY.

EARTHEN DIKE

CREST EL. 17.0 NAVD88

DEPLOYABLE GATE STORAGE PAD (TYP.)

EARTHEN DIKE

CREST EL. 17.0 NAVD88

DEPLOYABLE GATE STORAGE PAD (TYP.)

EARTHEN DIKE

CREST EL. 17.0 NAVD88

BITUMINOUS PAVEMENT

RESTORATION AND NEW

CURBING (TYP.)

CHAIN-LINK FENCE IMPROVEMENTS (TYP.)

SEE DRAWING SHEETS C-104 & C-109 SEE DRAWING SHEETS C-105 & C-110

SEE DRAWING SHEETS C-108 & C-113 SEE DRAWING SHEETS C-107 & C-112

SEE D

EETS C

-106 & C

-111

PROPOSED TEMPORARY CONSTRUCTION

LAYDOWN AND MATERIAL STORAGE AREA

RESTORE EXISTING GRADE, LOAM AND

SEED TO LAWN IN-KIND (TYP.)

RIPRAP APRON AT TOE OF SLOPE (TYP.)

LIMIT OF DISTURBANCE

BITUMINOUS PAVEMENT

RESTORATION AND NEW

CURBING (TYP.)

REMOVE AND RESET EXISTING RIPRAP

PROTECTION TO FACILITATE FLOODWALL

CONSTRUCTION, RESTORE EXISTING GRADE

LIMIT OF GRADING (TYP.)

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

WORK PLAN - KEY PLAN

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-103

AJK

DMB

AJK

AS SHOWN

TOE OF SLOPE (TYP.)

TOP OF SLOPE

(TYP., EL. VARIES)

CHAIN-LINK FENCE

RESTORATION (TYP.)

REPLACE EXISTING PAVEMENT WITH

LAWN BEYOND LIMIT OF RIPRAP (TYP.)

BITUMINOUS PAVEMENT

RESTORATION AND NEW

CURBING (TYP.) GUIDERAIL MODIFICATION (TYP.)

BITUMINOUS PAVEMENT RESTORATION

AND NEW CURBING (TYP.)

GUIDERAIL MODIFICATION (TYP.)

BITUMINOUS PAVEMENT

RESTORATION (TYP.)

NEW BITUMINOUS

CURBING (TYP.)

LAWN RESTORATION ON

PROTECTED SIDE OF DIKE

AND FLOODWALL (TYP.)

CHAIN-LINK FENCE IMPROVEMENTS (TYP.)

SITE BENCHMARK BM#2

MAG NAIL SET IN PAVEMENT

ELEVATION 8.67' NAVD88

N: 625531.2510' E: 896095.7910'

SITE BENCHMARK BM#1

MAG NAIL SET IN PAVEMENT

ELEVATION 11.54' NAVD88

N: 625246.3620' E: 896206.7786'

SITE BENCHMARK BM#7

MAG NAIL SET IN PAVEMENT

ELEVATION 11.15' NAVD88

N: 625267.0570' E: 896645.1034'

SITE BENCHMARK BM#6

MAG NAIL SET IN PAVEMENT

ELEVATION 10.59' NAVD88

N: 625464.8125' E: 896828.1957'

SITE BENCHMARK BM#5

MAG NAIL SET IN PAVEMENT

ELEVATION 13.08' NAVD88

N: 625938.8822' E: 896541.6312'

SITE BENCHMARK BM#3

MAG NAIL SET IN PAVEMENT

ELEVATION 10.43' NAVD88

N: 626101.6810' E: 896137.6852'

SITE BENCHMARK BM#4

MAG NAIL SET IN PAVEMENT

ELEVATION 13.07' NAVD88

N: 626316.6991' E: 896420.5126'

REMOVE AND REPLACE

EXISTING 6" WATER

SERVICE PIPE (TYP.)

1. ISSUED FOR REGULATORY REVIEW AJK 1/29/2025

2. ISSUED FOR BID AJK 1/29/2026

X X X X

X X X X X X

SOUTH ROAD

O A

A-2

A-1

A-3

A-4

A-8

A-6

A-7 A-16

A-5

TP-4

ANIMAL

SHELTER

BUILDING

ANOXIC TANKS

AERATION TANKS

WETLAND BOUNDARY

METHANOL

FACILITIES

STONE

HEADWALL

BLOWER BUILDING & RETURN

PUMPING STATION

BASIN OVERFLOW

RIPRAP SPILLWAY

EXISTING DIKE

UNDERDRAIN

X X

X X X

X X

1+00

2+00

3+00

4+00

29+00

BP: 0+00.00

EP: 30+98.62

PI: 1+65.72

PI: 29+66.41

: 3

+5 2.

: 3

+8 7.

M id

: 3 +7

0 10 20 40 60

SCALE IN FEET

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

CONNECT 6" PERF. UNDERDRAIN

TO EXISTING CATCH BASIN (TYP.)

CONCRETE FLOOD WALL [WALL-6] TOW EL. 17.0

CONCRETE FLOOD WALL [WALL-5] TOW EL.17.0

B.C.L.C. 85± LF (TYP.)

DEPLOYABLE FLOOD GATE SYSTEM (GATE-C)

CONCRETE SLAB TO BE EXPOSED AT FINISH GRADE

CURB TO CURB, TOC = EL. 12.0

RESTORE EXISTING GRADE, FEATHER AND BLEND FINISH

GRADE INTO EDGE OF RIPRAP SLOPE PROTECTION

C H

E D

C -1

MATCHLINE DRAWING C-108

DIKE CREST, 8' WIDE, EL. 17.0

B.C.L.C. 90± LF (TYP.)

RESTORE HMA PAVEMENT (TYP.)

R25'

NEW 6' CHAIN LINK FENCE (TYP.)

DEPLOYABLE FLOOD GATE SYSTEM

SYSTEM STORAGE PAD, 10'X50'

RESTORE CLF (TYP.)

DIKE CREST, 8' WIDE, EL. 17.0

2.5H:1V DIKE SLOPE (TYP.)

RESTORE EXISTING GRADE, FEATHER AND BLEND FINISH

GRADE INTO EDGE OF RIPRAP SLOPE PROTECTION

2.5H:1V DIKE SLOPE (TYP.)

CONCRETE FLOOD WALL [WALL-1] TOW EL. 17.0

TRANSITION 2.5H:1V DIKE SLOPE TO 2H:1V FLOODWALL EMBANKMENT SLOPE (TYP.)

DEPLOYABLE FLOOD GATE SYSTEM

SYSTEM STORAGE PAD, 10'X50'

MATCH EXISTING EOP (TYP.)

MAX.

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

APPROXIMATE TOE OF SLOPE (TYP.)

RIPRAP APRON (TYP.) MATCH EXISTING GRADE

10' WIDE (MAX.) WHERE CLEARANCE IS AVAILABLE

RIPRAP SLOPE PROTECTION ON FLOOD

SIDE SLOPE AND CREST OF DIKES (TYP.)

LIMIT OF DISTURBANCE (TYP.)

LOAM AND SEED TO LAWN ON PROTECTED

SIDE SLOPE OF DIKES (TYP.)

RIPRAP APRON (TYP.) MATCH EXISTING GRADE

10' WIDE (MAX.) WHERE CLEARANCE IS AVAILABLE

RIPRAP SLOPE PROTECTION ON FLOOD

SIDE SLOPE AND CREST OF DIKES (TYP.)

APPROXIMATE TOE OF SLOPE (TYP.)

LOAM AND SEED TO LAWN ON PROTECTED

SIDE SLOPE OF DIKES (TYP.)

APPROXIMATE TOE OF SLOPE (TYP.)

FEATHER AND BLEND FINISH GRADE TO TRANSITION FROM TOE

OF DIKE SLOPE TO MEET EXISTING GRADE TO REMAIN BEYOND

LIMIT OF GRADING; PITCH TO DRAIN AWAY FROM DIKE (TYP.)

LIMIT OF GRADING (TYP.)

FEATHER AND BLEND FINISH GRADE TO TRANSITION FROM TOE

OF DIKE SLOPE TO MEET EXISTING GRADE TO REMAIN BEYOND

LIMIT OF GRADING; PITCH TO DRAIN AWAY FROM DIKE (TYP.)

LIMIT OF GRADING (TYP.)

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

FLOOD SIDE

PROTECTED SIDE

END OF 6-FT CHAIN LINK FENCE; INSTALL MINIMUM 5.5-FT-WIDE SWING GATE TO TIE-IN AT FACE OF FLOODWALL; ADJUST TOP OF RIPRAP AS REQUIRED TO PERMIT FENCE SWING GATE FUNCTION (TYP.)

G.T.D.

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

WORK PLAN (1)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-104

AJK

DMB

AJK

AS SHOWN

NEW 24' WIDE SWING GATE (TYP.)

NEW 6' CHAIN LINK FENCE ALONG

EDGE OF DIKE CREST (TYP.)

UNDERDRAIN CLEANOUT (TYP.)

SEE DETAIL - SHEET C-301

W W W

W W

PL PL PL

X X

XXXXXXXXX

X X

NORTH ROAD

N O

R O

A D

B-2

B-3 B-1

G-2A-16 A-17

A-18

B-4 B-5

G-1

TP-5

BIOFILTER

RAW SEWAGE PUMPING STATION,INLET WORKS, & GENERATOR

MAINTENANCE GARAGE

SLUDGE DEWATERING

BUILDING

SLUDGE

HOLDING

TANKS

SLUDGE

THICKENER

C Y

ATO

PRIMARY TANK #3

PRIMARY TANK #2

PRIMARY TANK #1

SODA ASH FEED SYSTEM

LOAD

BANK

DIVERSION

CHAMBER "C"

5+00

6+00

7+00

8+00

9+00

: 5

+3 4.

: 7

+9 5.

0 10 20 40 60

SCALE IN FEET

C H

E D

C -1

MATCHLINE DRAWING C-107

C H

E D

C -1

GABION WALL, 288± LF, TOW EL. 9.0'±

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

RESTORE EXISTING GRADE IN-KIND, FEATHER

AND BLEND FINISH GRADE INTO EDGE OF RIPRAP

2H:1V FLOODWALL EMBANKMENT SLOPE WITH

RIPRAP PROTECTION ON FLOOD SIDE (TYP.)

DEPLOYABLE FLOOD GATE SYSTEM

SYSTEM STORAGE PAD, 10'X50'

EXISTING 54" CMP STORMWATER DRAIN CROSSING

CONTRACTOR TO FIELD VERIFY LOCATIONS

RESTORE EXISTING PAVEMENT AND CURB IN-KIND

RAISE EXISTING DRAIN STRUCTURE TO FINISH GRADE (TYP.)

EXISTING 12" RCP STORMWATER DRAIN

CROSSING; CONTRACTOR TO FIELD

VERIFY LOCATIONS; RESTORE EXISTING

PAVEMENT AND CURB IN-KIND

CONCRETE FLOOD WALL FOUNDATION

(BELOW GRADE, TYP.) PILE FOUNDATIONS

BELOW NOT SHOWN FOR DRAWING CLARITY

PROPOSED TEMPORARY CONSTRUCTION

LAYDOWN AND MATERIAL STORAGE AREA

RESTORE EXISTING GRADE, LOAM AND

SEED TO LAWN IN-KIND (TYP.)

LIMIT OF GRADING (TYP.)

FLOOD SIDE

PROTECTED SIDE

RIPRAP APRON (TYP.) MATCH EXISTING GRADE

10' WIDE (MAX.) WHERE CLEARANCE IS AVAILABLE

APPROXIMATE TOE

OF SLOPE (TYP.)

LIMIT OF DISTURBANCE (TYP.)

EMBANKMENT

CREST, 5' WIDE

TOS EL. VARIES

TOS EL. 11.0

EXTEND RIPRAP APRON TO LIMIT OF

DISTURBANCE WHERE HORIZONTAL CLEARANCE

TO BOTTOM OF EMBANKMENT SLOPE IS ≤ 10'

EXTEND RIPRAP APRON FROM FACE OF GABION WALL

TO LIMIT OF DISTURBANCE WHERE HORIZONTAL

CLEARANCE TO IS ≤ 10'; MATCH EXISTING GRADE

LOAM AND SEED TO LAWN, PITCH SURFACE TO

DRAIN (MINIMUM 1%) AWAY FROM FACE OF

FLOODWALL TO LIMIT OF GRADING (TYP.)

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

WORK PLAN (2)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-105

AJK

DMB

AJK

AS SHOWN

TOS EL. 11.0

CONTRACTOR TO FIELD VERIFY EXISTING

BURIED UTILITY LOCATIONS (TYP.)

CONCRETE FLOOD WALL [WALL-1] TOW EL. 17.0

UNDERDRAIN CLEANOUT (TYP.)

SEE DETAIL - SHEET C-301

W W W W W

PL PL PL PL PL PL PL PL PL PL PL PL PL PL PL

PLPL

X X

XXXXXXXXXXXXXXXXXXXXXXXXXXX

X X

BIRDSEYE STREET

A C

C E

S S

RIV

WWWWWWWWWWWWWWWW

W W

E-

F-

B-

A C

C E

S S

RIV

-1

PLPLPLPLPLPLPLPLPLPLPLPLPL

X X

XXXXXXXXXXXXXXXXX

11+00

12+00

13+00 14+00

15+00

16+00

PI: 10+52.56

PI: 11+12.56

: 1

PI: 13+88.04

: 1

PI: 1

.73

PI: 15+98.62

: 1

PI: 16+58.85

PI: 13+77.77

PC: 12+47.09

: 1

M id: 12+63.22

0 10 20 40 60

SCALE IN FEET

MATCHLINE DRAWING C-105

RESTORE EXISTING GRADE, INSTALL LOAM AND SEED TO LAWN

WITHIN OTHERWISE UNIMPROVED AREAS OF DISTURBANCE

AND EXISTING PAVEMENT REMOVAL; FEATHER AND BLEND

FINISH GRADE INTO EDGE OF RIPRAP (TYP.)

MATCHLINE DRAWING C-107MATCHLINE DRAWING C-105

NEW B.C.L.C. AT LIMIT OF EXISTING PAVEMENT REMOVAL, 20± LF (TYP.)

EXISTING PAVEMENT AND CURBING TO REMAIN

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

2.5H:1V DIKE SLOPE (TYP.)

1% MIN.

G.T.D.

B.C.L.C. 94± LF, TIE-IN TO EXISTING (TYP.)

FILL TO PROPOSED GRADE AND

RESTORE HMA PAVEMENT (TYP.)

R50'

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

CONNECT 6" PERF. UNDERDRAIN

TO EXISTING CATCH BASIN (TYP.)

CONCRETE FLOOD WALL

[WALL-1] TOW = EL. 17.0

2H:1V FLOODWALL EMBANKMENT SLOPE (TYP.)

FILL TO PROPOSED GRADE AND BLEND SLOPES

INTO EXISTING GRADES AT THE LIMIT OF FILL (TYP.)

RESTORE CLF AND TIE-IN TO EXISTING (TYP.)

CONCRETE FLOOD WALL FOUNDATION (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

CONCRETE FLOOD WALL [WALL-2] TOW = EL. 17.0

8' WIDE DIKE CREST, EL. 17

DEPLOYABLE FLOOD GATE SYSTEM (GATE-A)

CONCRETE SLAB TO BE EXPOSED AT FINISH

GRADE CURB TO CURB, TOC = EL. 12.0

CONCRETE FLOOD WALL [WALL-3] TOW = EL. 18.0

REMOVE AND RECONSTRUCT EXISTING

RIPRAP SLOPE TO FACILITATE FLOODWALL

CONSTRUCTION, GRADUALLY TRANSITION

INTO EXISTING GRADE (TYP.)

G .T

RESTORE HMA PAVEMENT AND CURBING

(WHERE INDICATED), RADIUS RETURN CURB

TO PROVIDE CLEARANCE FOR GATE SYSTEM

AT EACH END OF CONCRETE WALL (TYP.)

B.C.L.C., TIE-IN TO EXISTING (TYP.)

MODIFY EXISTING GUIDERAIL

TO REMAIN AND INSTALL R-B

TERMINAL SECTION (TYP.)

LIMIT OF GRADING (TYP.)

LOAM AND SEED TO LAWN, PITCH SURFACE

TO DRAIN (MINIMUM 1%) AWAY FROM FACE OF

FLOODWALL TO LIMIT OF GRADING (TYP.)

EXTEND RIPRAP APRON TO LIMIT OF DISTURBANCE

WHERE HORIZONTAL CLEARANCE TO BOTTOM OF

EMBANKMENT SLOPE IS ≤ 10'

LIMIT OF DISTURBANCE (TYP.)

2H:1V FLOODWALL EMBANKMENT SLOPE WITH

RIPRAP PROTECTION ON FLOOD SIDE (TYP.)

EMBANKMENT CREST, 5' WIDE

TOS EL. 11.0

RIPRAP APRON (TYP.) MATCH EXISTING GRADE

10' WIDE (MAX.) WHERE CLEARANCE IS AVAILABLE

APPROXIMATE TOE OF SLOPE (TYP.)

PROPOSED TEMPORARY CONSTRUCTION

LAYDOWN AND MATERIAL STORAGE AREA

RESTORE EXISTING GRADE, LOAM AND

SEED TO LAWN IN-KIND (TYP.)

APPROXIMATE TOE OF SLOPE (TYP.)

TRANSITION 2.5H:1V DIKE SLOPE TO 2H:1V

FLOODWALL EMBANKMENT SLOPE (TYP.)LOAM AND SEED TO LAWN ON PROTECTED SIDE SLOPE

OF DIKES AND FLOODWALL EMBANKMENT (TYP.)

LIMIT OF DISTURBANCE (TYP.)

EMBANKMENT CREST, 5' WIDE, PITCH SURFACE

TO DRAIN (MINIMUM 1%) AWAY FROM FACE OF

FLOODWALL TO TOP OF SLOPE (TYP.)

TOS EL. 13.0

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

FLOOD SIDE

PROTECTED SIDE

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

WORK PLAN (3)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-106

AJK

DMB

AJK

AS SHOWN

T/CURB EL. 10.1±

B/CURB EL. 9.6±

APPROXIMATE TOE OF SLOPE (TYP.)

TOS EL. 13.0

TOS EL. 12.5

TOP OF SLOPE

(EL. VARIES)

GABION WALL, 288± LF, TOW EL. 9.0'± MODIFY CLF TO CROSS FLOOD WALL(TYP.)

FREQUENT EXISTING BURIED UTILITY CROSSINGS

- ELECTRIC (SITE LIGHTING), SANITARY SEWER

(54" RWW), GAS, WATER, ETC. CONTRACTOR TO

FIELD VERIFY LOCATIONS, RESTORE EXISTING

PAVEMENT AND CURB IN-KIND

RESTORE CLF AND TIE-IN TO EXISTING (TYP.)

MODIFIED CONCRETE FLOODWALL PILE CAP TO

SPAN EXISTING 54" RWW PIPE CROSSING AND

FUTURE EXPANSION (NOTE 2 - THIS SHEET)

TRANSITION 2.5H:1V DIKE SLOPE TO 2H:1V

FLOODWALL EMBANKMENT SLOPE (TYP.)

EXTEND RIPRAP APRON TO LIMIT OF DISTURBANCE WHERE HORIZONTAL

CLEARANCE TO BOTTOM OF EMBANKMENT SLOPE IS ≤ 10' (TYP.)

RIPRAP SLOPE PROTECTION ON FLOOD SIDE SLOPE AND CREST OF DIKES (TYP.)

GRADUALLY INCREASE THE WIDTH

OF THE FLOOD SIDE EMBANKMENT

CREST TO MAINTAIN COVER OVER

THE MODIFIED PILE CAP (TYP.)

EMBANKMENT CREST,

5' WIDE (TYP.)

EMBANKMENT CREST, 8' WIDE

EXISTING VAULT #1 TO REMAIN

OR MODIFIED BY OTHERS (TYP.)

REPLACE EXISTING WATER SERVICE LINE WITH NEW

6" WATER SERVICE (TYP., SEE NOTE 1- THIS SHEET )

NOTES:

1. CONTRACTOR TO REMOVE; CUT, CAP, AND ABANDON EXISTING 6-INCH WATER SERVICE

WITHIN THE LIMIT OF DISTURBANCE; BELOW THE PROPOSED EMBANKMENT, FLOOD WALL,

AND RIPRAP APRON; BETWEEN THE EXISTING VAULT TO REMAIN AND THE NORTHERN EDGE

OF ACCESS DRIVE AND REPLACE WITH A NEW SEGMENT OF 6-INCH WATER SERVICE LINE

BELOW THE PROPOSED FLOOD WALL. CONNECT THE NEW 6-INCH WATER SERVICE LINE TO

EXISTING WATER SERVICE AT THE EXISTING VAULT TO REMAIN (OR MODIFIED BY OTHERS)

AND NORTHERN EDGE OF ACCESS DRIVE (SEE PLAN). CONTRACTOR SHALL MAINTAIN

CONTINUOUS WATER SERVICE TO THE SITE THROUGHOUT THE DURATION OF THE PROJECT.

CONTRACTOR TO COORDINATE PROPOSED SERVICE INTERRUPTIONS, CONNECTIONS, AND

INSPECTIONS WITH THE OWNER.

2. AFTER LOCATING AND VERIFICATION OF THE EXISTING SUBSURFACE UTILITIES, INSTALL

THE PILES AND MODIFIED PILE CAP AS REQUIRED. REFER TO DRAWING SHEET S-102 AND

S-201 FOR FOUNDATION PLAN AND CROSS-SECTION. FUTURE EXPANSION OF THE RWW

INTAKE WILL BE PERFORMED BY OTHERS (NOT INCLUDED IN THIS CONTRACT).

EXISTING VAULT #2 TO REMAIN

OR MODIFIED BY OTHERS (TYP.)

CONNECT NEW 6" WATER

SERVICE TO EXISTING (TYP.)

CONNECT NEW 6" WATER SERVICE (TYP.)

UNDERDRAIN CLEANOUT (TYP.)

SEE DETAIL - SHEET C-301

PLPLPLPLPLPLPL

W W W

X X

X X X X X X X

X X

X X X X X X

C-10

C-6

C-5

C-8

C-14

C-1

C-2 C-3

C-4

C-7

C-9

C-11

C-12C-13

BEACON POINT ROAD

ZONE AE (E

L 14)

ZONE VE (E

L 13)TP-6

TP-2

PL PL PL PL PL

SECONDARY SETTLING

TANK NO. 2

CONTROL B

UILD

ING

PUMP

STATIO

WET

WELL

SUBSTATION

UV DISINFECTION

EFFLUENT DISTRIBUTION BOX

DIVERSION

CHAMBER "B"

TIDAL INLET

CHAMBER

JUNCTION

CHAMBER

CHECK VALVE

CHAMBER

TIDAL

DIVERSION

CHAMBER

OUTFALL

CHAMBER "A"

FLOOD

EBB

HOUSATONIC RIVER

17+00 18+00

19+00

20+00

21+00

22+00

: 1

PI: 20+14.81

PI: 20+86.67

PI: 21+74.86PI: 21+91.05

PI: 2

.13

0 10 20 40 60

SCALE IN FEET

C H

E D

C -1

MATCHLINE DRAWING C-105

C H

E D

C -1

CONCRETE FLOOD WALL [WALL-3] TOW = EL. 18.0

REMOVE AND RECONSTRUCT EXISTING RIPRAP SLOPE TO FACILITATE FLOODWALL CONSTRUCTION, GRADUALLY TRANSITION INTO EXISTING GRADE (TYP.) - SLOPE AND ELEVATIONS VARY, REFER TO PROPOSED SECTIONS

INSTALL IN-LINE CHECK VALVE

AT 15" CMP DRAIN OUTLET FROM

EXISTING CATCH BASIN (TYP.)

SEE DETAIL - SHEET C-301

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

RESTORE HMA PAVEMENT

MATCH EXISTING EOP (TYP.)

EXISTING 15" RCP STORMWATER DRAIN

CROSSING; CONTRACTOR TO FIELD VERIFY

LOCATIONS; NEAR-GRADE UTILITY CROSSING

- REFER TO DETAIL DRAWING S-301

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

RESTORE CLF AND TIE-IN TO EXISTING (TYP.)

EXISTING 54" PCCP PLANT EFFLUENT PIPE CROSSING

CONTRACTOR TO FIELD VERIFY LOCATIONS

EXISTING 42" PCCP PUMP STATION DISCHARGE PIPE CROSSING

NEAR-GRADE UTILITY CROSSING - REFER TO DETAIL DRAWING S-301

CONTRACTOR TO FIELD VERIFY LOCATIONS

MODIFY EXISTING GUIDERAIL TO REMAIN

AND INSTALL R-B TERMINAL SECTION

DEPLOYABLE FLOOD GATE SYSTEM (GATE-B)

CONCRETE SLAB TO BE EXPOSED AT FINISH

GRADE CURB TO CURB, TOC = EL. 12.0

RESTORE HMA PAVEMENT AND CURBING, WHERE INDICATED

RADIUS RETURN CURB TO PROVIDE CLEARANCE FOR GATE

SYSTEM AT EACH END OF CONCRETE WALL (TYP.)

G.T.D.

B.C.L.C., TIE-IN TO EXISTING (TYP.)

RESTORE HMA PAVEMENT

MATCH EXISTING EOP (TYP.)

EXISTING 36" HDPE STORMWATER DRAIN CROSSING

WITH BURIED REMNANT STEEL SHEET PILES

CONTRACTOR TO FIELD VERIFY LOCATIONS

CJL = 5.0 NAVD88

SHTL = 3.4 NAVD88

CONCRETE FLOOD WALL

[WALL-4] TOW = EL. 17.0

LIMIT OF DISTURBANCE (TYP.)

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

PROPOSED TEMPORARY CONSTRUCTION

LAYDOWN AND MATERIAL STORAGE AREA

RESTORE EXISTING GRADE, LOAM AND

SEED TO LAWN IN-KIND (TYP.)

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

WORK PLAN (4)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-107

AJK

DMB

AJK

AS SHOWN

TOS EL. 12.0

TOP OF SLOPE

(TOS EL. VARIES)TOS EL. 12.5

TOS EL. 12.0

TOS EL. 12.5

TOS EL. 12.0

EXISTING 54" PCCP PLANT EFFLUENT PIPE CROSSING

CONTRACTOR TO FIELD VERIFY LOCATIONS

MODIFY CLF TO CROSS FLOOD WALL(TYP.)

UNDERDRAIN CLEANOUT (TYP.)

SEE DETAIL - SHEET C-301

PLPL

X X

X X X

X X

XXXXXXXXXXX

A N

L SH

ELTER

D R

A Y

D-2

D-1

TP-3

PL PL

BIT. CONC.

PUBLIC

WORKS

YARD

SECONDARY SETTLING

TANK NO.1

SECONDARY SETTLING

TANK NO. 3

AE DISTRIBUTION BOX

BLOWER BUILDING & RETURN

PUMPING STATION

EFFLUENT DISTRIBUTION BOX

EXISTING DIKE

UNDERDRAIN

SUBSTATION

XXXX

X X

23+00

24+00

25+00

26+00

27+00

28+00

PI: 22+93.64

PI: 23+45.91

: 2

PT: 25+53.27

M id:

CO N

0 10 20 40 60

SCALE IN FEET

C H

E D

C -1

MATCHLINE DRAWING C-104

RELOCATE AND RESTORE CLF (TYP.)

8' WIDE DIKE CREST, EL. 17.0

2.5H:1V DIKE SLOPE (TYP.)

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

CONCRETE FLOOD WALL [WALL-4] TOW = EL. 17.0

CONCRETE FLOOD WALL FOUNDATION (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

RELOCATE AND RESTORE CLF (TYP.)

FULL-HEIGHT DIKE SECTION AND CREST TO EXTEND 10 LF

(MIN.) BEYOND THE ENDS OF FLOOD WALL SEGMENTS

APPROXIMATE TOE OF SLOPE (TYP.)

RIPRAP APRON (TYP.) MATCH EXISTING GRADE

10' WIDE (MAX.) WHERE CLEARANCE IS AVAILABLE

RIPRAP SLOPE PROTECTION ON FLOOD

SIDE SLOPE AND CREST OF DIKES (TYP.)

LOAM AND SEED TO LAWN ON PROTECTED

SIDE SLOPE OF DIKES (TYP.)

APPROXIMATE TOE OF SLOPE (TYP.)

FEATHER AND BLEND FINISH GRADE TO TRANSITION FROM TOE

OF DIKE SLOPE TO MEET EXISTING GRADE TO REMAIN BEYOND

LIMIT OF GRADING; PITCH TO DRAIN AWAY FROM DIKE AND

FACE OF FLOODWALL (TYP.)

LIMIT OF GRADING (TYP.)

LOAM AND SEED TO LAWN, PITCH SURFACE

TO DRAIN (MINIMUM 1%) AWAY FROM FACE OF

FLOODWALL TO LIMIT OF DISTURBANCE (TYP.)RESTORE EXISTING GRADE, FEATHER AND BLEND FINISH

GRADE INTO EDGE OF RIPRAP SLOPE PROTECTION

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

WORK PLAN (5)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-108

AJK

DMB

AJK

AS SHOWN

RESTORE EXISTING CLF AND GATE ACROSS

THE ANIMAL SHELTER DRIVEWAY IN-KIND (TYP.)

MODIFY AND CONNECT FENCE SEGMENT

CROSSING THE ANIMAL SHELTER DRIVEWAY

TO RELOCATED PERIMETER FENCE (TYP.)

UNDERDRAIN CLEANOUT (TYP.)

SEE DETAIL - SHEET C-301

X X X X

X X X X X X

SOUTH ROAD

O A

A-2

A-1

A-3

A-4

A-8

A-6

A-7 A-16

A-5

TP-4

ANIMAL

SHELTER

BUILDING

ANOXIC TANKS

AERATION TANKS

WETLAND BOUNDARY

METHANOL

FACILITIES

STONE

HEADWALL

BLOWER BUILDING & RETURN

PUMPING STATION

BASIN OVERFLOW

RIPRAP SPILLWAY

EXISTING DIKE

UNDERDRAIN

9 810

BP: 0+00.00

END WALL-6

EP: 30+98.62

N: 625177.2788 E: 896190.4558

PI: 1+65.72

N: 625327.9119 E: 896121.3805

PC: 3+52.97

N: 625505.1714 E: 896061.0186

Mid: 3+70.41 N: 625522.0827 E: 896056.8617

PT: 3+87.84

N: 625539.4588 E: 896055.7017

PI: 29+66.41

N: 625220.7050 E: 896315.3287

BEGIN WALL-6

STA. 30+71.37

N: 625186.2296 E: 896216.1938

END WALL-5

STA. 30+41.87

N: 625195.9194 E: 896244.0570

BEGIN WALL-5

STA. 30+14.62

N: 625204.8701 E: 896269.7951

1+00

2+00

3+00

4+00

29+00

0 10 20 40 60

SCALE IN FEET

B.C.L.C. 85± LF (TYP.)

DEPLOYABLE FLOOD GATE SYSTEM (GATE-C)

CONCRETE SLAB TO BE EXPOSED AT FINISH

GRADE CURB TO CURB, TOC = EL. 12.0

C H

E D

C -1

MATCHLINE DRAWING C-113

DIKE CREST, 8' WIDE, EL. 17.0

B.C.L.C. 90± LF (TYP.)

RESTORE HMA PAVEMENT (TYP.)

DIKE CREST, 8' WIDE, EL. 17.0

2.5H:1V DIKE SLOPE (TYP.)

TRANSITION 2.5H:1V DIKE SLOPE TO 2H:1V

FLOOD WALL EMBANKMENT SLOPE (TYP.)

MATCH EXISTING EOP (TYP.)

MAX.

LIMIT OF DISTURBANCE (TYP.)

LIMIT OF GRADING (TYP.)

FLOOD SIDE

PROTECTED SIDE

TOP OF SLOPE (TOS, EL. VARIES)

G.T.D.

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

GRADING PLAN (1)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-109

AJK

DMB

AJK

AS SHOWN

GRADE TO PROPOSED

CONTOURS (TYP.)

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

R25'

R10'

10 LF (MIN.) SEE

NOTE 1-THIS SHEET

CONNECT 6" PERF. UNDERDRAIN

TO EXISTING CATCH BASIN (TYP.)

NOTES:

1. FULL HEIGHT DIKE SECTION AND CREST TO EXTEND 10 LF (MIN.) BEYOND THE ENDS OF

FLOOD WALL SEGMENTS.

10 LF (MIN.) NOTE 1 - THIS SHEET

CONCRETE FLOOD WALL PILE

CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT

SHOWN FOR DRAWING CLARITY

DEPLOYABLE FLOOD GATE SYSTEM

STORAGE PAD, 10'X50', PROVIDE LEVEL

SURFACE AT FINISHED GRADE (TYP.)

CONCRETE FLOOD WALL

[WALL-1] TOW EL. 17.0

DEPLOYABLE FLOOD GATE SYSTEM

STORAGE PAD, 10'X50', PROVIDE LEVEL

SURFACE AT FINISHED GRADE (TYP.)

CONCRETE FLOOD WALL

[WALL-5] TOW EL. 17.0

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

CONCRETE FLOOD WALL

[WALL-5] TOW EL. 17.0

SITE BENCHMARK BM#2

MAG NAIL SET IN PAVEMENT

ELEVATION 8.67' NAVD88

N: 625531.2510' E: 896095.7910'

SITE BENCHMARK BM#1

MAG NAIL SET IN PAVEMENT

ELEVATION 11.54' NAVD88

N: 625246.3620' E: 896206.7786'

W W W

W W

PL PL PL

X X

XXXXXXXXX

X X

NORTH ROAD

N O

R O

A D

B-2

B-3 B-1

G-2A-16 A-17

A-18

B-4 B-5

G-1

TP-5

BIOFILTER

RAW SEWAGE PUMPING STATION,INLET WORKS, & GENERATOR

MAINTENANCE GARAGE

SLUDGE DEWATERING

BUILDING

SLUDGE

HOLDING

TANKS

SLUDGE

THICKENER

C Y

ATO

PRIMARY TANK #3

PRIMARY TANK #2

PRIMARY TANK #1

SODA ASH FEED SYSTEM

LOAD

BANK

DIVERSION

CHAMBER "C"

11 10

PI: 5+34.28

N: 625685.8666 E: 896058.7071

PI: 7+95.91

N: 625942.1639 E: 896111.2642

5+00

6+00

7+00

8+00

9+00

0 10 20 40 60

SCALE IN FEET

C H

E D

C -1

MATCHLINE DRAWING C-112

C H

E D

C -1

GABION WALL, 288± LF, TOW EL. 9.0'±

SEE TYPICAL SECTION - SHEET C-301

2H:1V FLOODWALL EMBANKMENT SLOPE (TYP.)

PROPOSED TEMPORARY CONSTRUCTION

LAYDOWN AND MATERIAL STORAGE AREA

RESTORE EXISTING GRADE, LOAM AND

SEED TO LAWN IN-KIND (TYP.)

LIMIT OF GRADING (TYP.)

FLOOD SIDE

PROTECTED SIDE

LIMIT OF DISTURBANCE (TYP.)

TOS EL. VARIES

TOS EL. 11.0

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

GRADING PLAN (2)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-110

AJK

DMB

AJK

AS SHOWN

EMBANKMENT CREST, 5' WIDE, PITCH SURFACE

TO DRAIN (MINIMUM 1%) AWAY FROM FACE OF

FLOODWALL TO TOP OF SLOPE (TYP.)

CONCRETE FLOOD WALL

[WALL-1] TOW = EL. 17.0

INCREASE WIDTH OF EMBANKMENT CREST ON FLOOD

SIDE TO MAINTAIN CONSISTENT COVER OVER PROPOSED

PILE CAP AT 54" CMP DRAIN CROSSING (TYP.)

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

MINIMIZE DISTURBANCE OF THE EXISTING HMA CURB AND

PAVEMENT TO THE EXTENT NECESSARY TO PERFORM THE

WORK - RESTORE EXISTING PAVEMENT AND CURBING

IN-KIND, MATCH EXISTING PAVEMENT GRADES (TYP.)

BEGIN GABION WALL

OFF L, STA. 7+77±

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

SITE BENCHMARK BM#3

MAG NAIL SET IN PAVEMENT

ELEVATION 10.43' NAVD88

N: 626101.6810' E: 896137.6852'

DEPLOYABLE FLOOD GATE SYSTEM

STORAGE PADS, 10'X50', PROVIDE LEVEL

SURFACE AT FINISHED GRADE (TYP.)

RAISE EXISTING DRAIN STRUCTURE TO FINISH GRADE (TYP.)

W W W W W

PL PL PL PL PL PL PL PL PL PL PL PL PL PL PL

PLPL

X X

XXXXXXXXXXXXXXXXXXXXXXXXXXX

X X

BIRDSEYE STREET

A C

C E

S S

RIV

WWWWWWWWWWWWWWWW

W W

E-

F-

B-

A C

C E

S S

RIV

-1

PLPLPLPLPLPLPLPLPLPLPLPLPL

11 12

107 13

PI: 10+52.56

N: 626197.4198 E: 896137.9441

PI: 11+12.56

N: 626230.7198 E: 896187.8551

PI: 12+20.06

N: 626226.0176 E: 896295.2536

PC: 12+47.09

N: 626251.5634 E: 896304.0818

Mid: 12+63.22 N: 626264.1334 E: 896313.7453

PT: 12+79.36

N: 626268.3630 E: 896329.0260

PI: 13+77.77

N: 626263.1852 E: 896427.2989

PI: 13+88.04

N: 626270.0595 E: 896434.9379

PI: 14+89.10

N: 626264.7095 E: 896535.8523

PI: 15+09.73

N: 626249.4249 E: 896549.7072

PI: 15+98.62

N: 626160.6236

E: 896545.6994 PI: 16+52.09

N: 626157.9728 E: 896599.0992

PI: 16+58.85

N: 626151.2190 E: 896598.7639

END WALL-1

STA. 12+30.06

N: 626235.4691 E: 896298.5199

BEGIN WALL-2

STA. 13+67.77

N: 626263.7114 E: 896417.3128

END WALL-2

STA. 16+09.59

N: 626160.0799 E: 896556.6529

BEGIN WALL-3

STA. 16+56.13

N: 626153.9361 E: 896598.8988

11+00

12+00

13+00 14+00

15+00

16+00

0 10 20 40 60

SCALE IN FEET

MATCHLINE DRAWING C-110

RESTORE EXISTING GRADE, INSTALL LOAM AND SEED TO LAWN

WITHIN OTHERWISE UNIMPROVED AREAS OF DISTURBANCE

AND EXISTING PAVEMENT REMOVAL; FEATHER AND BLEND

FINISH GRADE INTO EDGE OF RIPRAP (TYP.)

MATCHLINE DRAWING C-112MATCHLINE DRAWING C-110

NEW B.C.L.C. AT LIMIT OF EXISTING PAVEMENT REMOVAL, 20± LF (TYP.)

EXISTING PAVEMENT AND CURBING TO REMAIN

2.5H:1V DIKE SLOPE (TYP.)

1% MIN.

G.T.D.

B.C.L.C. 94± LF, TIE-IN TO EXISTING (TYP.)

FILL TO PROPOSED GRADE AND

RESTORE HMA PAVEMENT (TYP.)

R50'

CONCRETE FLOOD WALL

[WALL-1] TOW = EL. 17.0

2H:1V FLOODWALL EMBANKMENT SLOPE (TYP.)

CONCRETE FLOOD WALL

[WALL-2] TOW = EL. 17.0

8' WIDE DIKE

CREST, EL. 17

CONCRETE FLOOD WALL [WALL-3] TOW = EL. 18.0

G .T

LIMIT OF GRADING (TYP.)

LOAM AND SEED TO LAWN, PITCH SURFACE

TO DRAIN (MINIMUM 1%) AWAY FROM FACE OF

FLOODWALL TO LIMIT OF GRADING (TYP.)

LIMIT OF DISTURBANCE (TYP.)

2H:1V FLOODWALL EMBANKMENT SLOPE WITH

RIPRAP PROTECTION ON FLOOD SIDE (TYP.)

TOS EL. 11.0

PROPOSED TEMPORARY CONSTRUCTION

LAYDOWN AND MATERIAL STORAGE AREA

RESTORE EXISTING GRADE, LOAM AND

SEED TO LAWN IN-KIND (TYP.)

LIMIT OF DISTURBANCE (TYP.)

EMBANKMENT CREST, 5' WIDE, PITCH SURFACE

TO DRAIN (MINIMUM 1%) AWAY FROM FACE OF

FLOODWALL TO TOP OF SLOPE (TYP.)

TOS EL. 13.0

FLOOD SIDE

PROTECTED SIDE

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

GRADING PLAN (3)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-111

AJK

DMB

AJK

AS SHOWN

T/CURB EL. 10.1±

B/CURB EL. 9.6±

TOS EL. 13.0

TOS EL. 12.5

TOP OF SLOPE

(EL. VARIES)

GABION WALL, 288± LF, TOW EL. 9.0'±

EMBANKMENT CREST, 5' WIDE, PITCH SURFACE

TO DRAIN (MINIMUM 1%) AWAY FROM FACE OF

FLOODWALL TO TOP OF SLOPE (TYP.)

GRADE TO PROPOSED CONTOURS (TYP.)

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

CONNECT 6" PERF. UNDERDRAIN

TO EXISTING CATCH BASIN (TYP.)

TRANSITION 2H:1V FLOOD WALL EMBANKMENT

SLOPE TO 2.5H:1V DIKE SLOPE (TYP.)

TRANSITION 2.5H:1V DIKE SLOPE TO 2H:1V

FLOODWALL EMBANKMENT SLOPE (TYP.)

DEPLOYABLE FLOOD GATE SYSTEM (GATE-A)

CONCRETE SLAB TO BE EXPOSED AT FINISH

GRADE CURB TO CURB, TOC = EL. 12.0

REMOVE AND RECONSTRUCT EXISTING

RIPRAP SLOPE TO FACILITATE FLOODWALL

CONSTRUCTION, GRADUALLY TRANSITION

INTO EXISTING GRADE (TYP.)

RESTORE HMA PAVEMENT AND CURBING

(WHERE INDICATED), RADIUS RETURN CURB

TO PROVIDE CLEARANCE FOR GATE SYSTEM

AT EACH END OF CONCRETE WALL (TYP.)

10 LF (MIN.) NOTE 1 - THIS SHEET

NOTES:

1. FULL HEIGHT DIKE SECTION AND CREST TO EXTEND 10 LF (MIN.) BEYOND THE ENDS OF

FLOOD WALL SEGMENTS.

END GABION WALL

OFF L, STA. 10+56±

10 LF (MIN.) NOTE 1 - THIS SHEET

INCREASE WIDTH OF EMBANKMENT CREST ON FLOOD SIDE

TO MAINTAIN CONSISTENT COVER OVER PROPOSED PILE

CAP TO SPAN EXISTING 54" RWW PIPE CROSSING (TYP.)

CONCRETE FLOOD WALL PILE

CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT

SHOWN FOR DRAWING CLARITY

SITE BENCHMARK BM#4

MAG NAIL SET IN PAVEMENT

ELEVATION 13.07' NAVD88

N: 626316.6991' E: 896420.5126'

PLPLPLPLPLPLPL

W W W

X X

X X X X X X X

X X

X X X X X X

C-10

C-6

C-5

C-8

C-14

C-1

C-2 C-3

C-4

C-7

C-9

C-11

C-12C-13

BEACON POINT ROAD

ZONE AE (E

L 14)

ZONE VE (E

L 13)TP-6

TP-2

PL PL PL PL PL

SECONDARY SETTLING

TANK NO. 2

CONTROL B

UILD

ING

PUMP

STATIO

WET

WELL

SUBSTATION

UV DISINFECTION

EFFLUENT DISTRIBUTION BOX

DIVERSION

CHAMBER "B"

TIDAL INLET

CHAMBER

JUNCTION

CHAMBER

CHECK VALVE

CHAMBER

TIDAL

DIVERSION

CHAMBER

OUTFALL

CHAMBER "A"

FLOOD

EBB

HOUSATONIC RIVER

PI: 18+71.08

N: 625939.0844 E: 896592.4458

PI: 19+42.94

N: 625868.4367 E: 896605.6125

PI: 20+14.81

N: 625802.1476 E: 896633.3649

PI: 20+86.67

N: 625743.1916 E: 896674.4579

PI: 21+74.86

N: 625676.5869 E: 896732.2686

PI: 21+91.05

N: 625664.7812 E: 896743.3366

PI: 22+46.13

N: 625627.1044 E: 896703.1486

END WALL-3

STA. 21+87.00

N: 625667.7297 E: 896740.5723

BEGIN WALL-4

STA. 22+33.55

N: 625635.7135 E: 896712.3314

17+00 18+00

19+00

20+00

21+00

22+00

0 10 20 40 60

SCALE IN FEET

C H

E D

C -1

MATCHLINE DRAWING C-110

C H

E D

C -1

CONCRETE FLOOD WALL [WALL-3] TOW = EL. 18.0

REMOVE AND RECONSTRUCT EXISTING RIPRAP SLOPE TO FACILITATE FLOODWALL CONSTRUCTION, GRADUALLY TRANSITION INTO EXISTING GRADE (TYP.) - SLOPE AND ELEVATIONS VARY, REFER TO CROSS SECTIONS

DEPLOYABLE FLOOD GATE SYSTEM (GATE-B)

CONCRETE SLAB TO BE EXPOSED AT FINISH

GRADE CURB TO CURB, TOC = EL. 12.0

G.T.D.

CJL = 5.0 NAVD88

SHTL = 3.4 NAVD88

CONCRETE FLOOD WALL

[WALL-4] TOW = EL. 17.0

LIMIT OF DISTURBANCE (TYP.)

PROPOSED TEMPORARY CONSTRUCTION

LAYDOWN AND MATERIAL STORAGE AREA

RESTORE EXISTING GRADE, LOAM AND

SEED TO LAWN IN-KIND (TYP.)

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

GRADING PLAN (4)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-112

AJK

DMB

AJK

AS SHOWN

TOS EL. 12.0

TOP OF SLOPE

(TOS EL. VARIES)

TOS EL. 12.5

TOS EL. 12.0

TOS EL. 12.5

TOS EL. 12.0

GRADE TO PROPOSED CONTOURS (TYP.)

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

RESTORE HMA PAVEMENT AND CURBING

(WHERE INDICATED), RADIUS RETURN CURB

TO PROVIDE CLEARANCE FOR GATE SYSTEM

AT EACH END OF CONCRETE WALL (TYP.)

SITE BENCHMARK BM#5

MAG NAIL SET IN PAVEMENT

ELEVATION 13.08' NAVD88

N: 625938.8822' E: 896541.6312'

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

PLPL

X X

X X X

X X

XXXXXXXXXXX

A N

L SH

ELTER

D R

A Y

D-2

D-1

TP-3

PL PL

BIT. CONC.

PUBLIC

WORKS

YARD

SECONDARY SETTLING

TANK NO.1

SECONDARY SETTLING

TANK NO. 3

AE DISTRIBUTION BOX

BLOWER BUILDING & RETURN

PUMPING STATION

EFFLUENT DISTRIBUTION BOX

EXISTING DIKE

UNDERDRAIN

SUBSTATION

PI: 22+93.64

N: 625591.0736

E: 896734.1159PI: 23+45.91

N: 625542.0978 E: 896752.3807

PC: 24+10.70

N: 625478.7328 E: 896765.8567

Mid: 24+81.98 N: 625409.6967 E: 896755.6427

PT: 25+53.27

N: 625364.1521 E: 896702.7655

END WALL-4

STA. 23+76.10

N: 625512.5766 E: 896758.6590

23+00

24+00

25+00

26+00

27+00

28+00

0 10 20 40 60

SCALE IN FEET

C H

E D

C -1

MATCHLINE DRAWING C-109

8' WIDE DIKE CREST, EL. 17.0

2.5H:1V DIKE SLOPE (TYP.)

CONCRETE FLOOD WALL [WALL-4] TOW = EL. 17.0

LIMIT OF GRADING (TYP.)

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

GRADING PLAN (5)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-113

AJK

DMB

AJK

AS SHOWN

GRADE TO PROPOSED CONTOURS (TYP.)

6" PERF. UNDERDRAIN

SEE DETAIL - SHEET C-301

CUT SLOPE (1H:1V OR FLATTER, TYP.)

EXTEND LIMIT OF GRADING MINIMALLY TOWARD INTERIOR

OF WPCF WHERE REQUIRED TO STABILIZE SLOPE AND AS

NECESSARY TO MAINTAIN PROPOSED DIKE GEOMETRY

SITE BENCHMARK BM#7

MAG NAIL SET IN PAVEMENT

ELEVATION 11.15' NAVD88

N: 625267.0570' E: 896645.1034'

SITE BENCHMARK BM#6

MAG NAIL SET IN PAVEMENT

ELEVATION 10.59' NAVD88

N: 625464.8125' E: 896828.1957'

NOTES:

1. FULL HEIGHT DIKE SECTION AND CREST TO EXTEND 10 LF (MIN.) BEYOND THE ENDS OF

FLOOD WALL SEGMENTS.

10 LF (MIN.) NOTE 1 - THIS SHEET

CONCRETE FLOOD WALL PILE CAP (BELOW GRADE, TYP.)

PILE FOUNDATIONS BELOW NOT SHOWN FOR DRAWING CLARITY

EXISTING 54" CMP DRAIN BELOW PROPOSED PILE CAP (APPROX.)

EXISTING 54" CMP @ DC-C

STA. 8+40±, OFF-R 41.3'±

TOP OF PIPE EL. 0.4± NAVD88 (EST.)

INV= -4.1± NAVD88 (EST.)

EXISTING 12" RCP

STORMWATER INTAKE TO DC-C

INV=1.2± NAVD88 (EST.)

EXISTING 54" RWW INFLUENT (CAST IRON?)

INV.= -5.6± NAVD88

EXISTING GAS 2" PLA. (SLEEVED IN 4" PLA.)

EXISTING 6" WATER

CREST EL. 17.0 NAVD88 CREST EL. 17.0 NAVD88

FILL

PROPOSED GRADE

EXISTING GRADE

WALL-1EARTHEN DIKE

EXISTING 54" CMP @ CB-CL

STA. 6+36±, OFF-L 17.7'±

TOP OF PIPE EL. 1.3± NAVD88 (EST.)

INV= -3.2± NAVD88 (EST.)

TOW EL. 17.0 NAVD88 TOW EL. 17.0 NAVD88

CONCRETE STEMWALL

CONCRETE PILE CAP

CONCRETE KEY

B/PILE CAP EL. 7.5

B/KEY EL. 6.0

B/STEM EL. 10.0

B/PILE CAP EL. 6.5

B/KEY EL. 5.0

B/STEM EL. 9.0

PROPOSED GRADE (AT FACE OF WALL)

EL. 12.0

EL. 11.0

2.5H :1V

0.5%±

2 4 8 12

VERTICAL SCALE IN FEET

20 40 80 120

HORIZONTAL SCALE IN FEET

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

PROPOSED PROFILES (1)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-114

AJK

DMB

AJK

AS SHOWN

NOTES:

1. INDICATED UTILITIES AND CORRESPONDING CONDITIONS ARE BASED ON

INFORMATION OBTAINED FROM PRIOR CONSTRUCTION AND AS-BUILT RECORD

DRAWINGS AND ARE DEPICTED FOR GENERAL REFERENCE. CONTRACTOR TO FIELD

VERIFY AND RECORD ACTUAL LOCATIONS AND CONDITIONS.

2. EXISTING GRADE ELEVATION DATA OBTAINED FROM THE 2016 CONNECTICUT LIDAR

PROJECT, ACCESSED ELECTRONICALLY VIA CTECO.UCONN.EDU. CONTOUR

ELEVATIONS ARE INDICATED IN FEET AND REFERENCED TO THE NORTH AMERICAN

VERTICAL DATUM OF 1988 (NAVD88).

PROPOSED PROFILE - STATION 0+00 TO 12+00

VERTICAL SCALE: 1"=4'

HORIZONTAL SCALE: 1"=40'

NOTE: PROPOSED PILE SUPPORTS ARE NOT SHOWN FOR DRAWING CLARITY.

EXISTING 15" CMP

DRAIN OUTFALL PIPE

INV.= 7.9± NAVD88 (EST.)

EXISTING 54" PCCP OUTFALL

CHAMBER 'A' DISCHARGE PIPE

INV=-4.6 NAVD88 (EST.)

EXISTING 54" ABCMP DIVERSION

CHAMBER 'B' DISCHARGE PIPE

INV=-5.6± NAVD88 (EST.)

EXISTING 36" PE OUTFALL (ABANDONED)

INV=-3.9± NAVD88 (EST.)

EXISTING 42" PCCP PUMP

STATION DISCHARGE PIPE

INV=6.3± NAVD88 (EST.)

EXISTING 36" HDPE DRAIN

INV=-4.4± NAVD88 (EST.)

B/PILE CAP EL. 9.5

B/KEY EL. 8.0

B/PILE CAP EL. 8.5

B/KEY EL. 7.0

B/STEM EL. 12.0

B/STEM EL. 11.0

B/PILE CAP EL. 10.0

B/KEY EL. 8.5

B/STEM EL. 12.5

B/PILE CAP EL. 8.5

B/KEY EL. 7.0

B/STEM EL. 11.0

TOC EL. 12.0

B/PILE CAP EL. 6.5

B/KEY EL. 5.0

B/STEM EL. 9.0

FILL

CONCRETE STEMWALL

CONCRETE PILE CAP

CONCRETE KEY

TOC EL. 12.0

TOW EL. 17.0 NAVD88TOW / DIKE CREST EL. 17.0 NAVD88

TOW EL. 18.0 NAVD88

TOW / DIKE CREST EL. 17.0 NAVD88

TOW EL. 18.0 NAVD88

WALL-4GATE-B

(BEACON POINT ROAD)

WALL-3GATE-A

(BEACON POINT ROAD)

WALL-2EARTHEN DIKEWALL-1

EARTHEN DIKE

EXISTING, ABANDONED STEEL

SHEET PILING ALONG 36" HDPE

DRAIN PER RECORD DRAWINGS

(EXTENTS UNKNOWN)

B/PILE CAP EL. 8.5

B/KEY EL. 7.0

B/STEM EL. 11.0

RESTORE EXISTING GRADE ON

PROTECTED SIDE OF WALL-3

RESTORE EXISTING

GRADE (TYP.)

2.5H :1V2.

5H :1

EL. 13.0 EL. 13.0

B/PILE

CAP

EL.

10.0B/KEY

EL.

8.5

B/STEM EL. 12.5

PROPOSED GRADE AT RIVERSIDE

FACE OF WALL-3 (TYP., VARIES,

REFER TO X-SECTIONS)

B/PILE CAP EL. 8.5

B/KEY EL. 7.0

B/STEM EL. 11.0

TOS=12.5

TOS=12.0 TOS=12.0

TOS=12.5 TOS=12.5

NEAR-GRADE UTILITY CROSSING WITH

COMPRESSIBLE PIPE GASKET MATERIAL

SEE DETAIL - SHEET S-301

NEAR-GRADE UTILITY CROSSING WITH

COMPRESSIBLE PIPE GASKET MATERIAL

SEE DETAIL - SHEET S-301

EL. 11.0

B/PILE CAP EL. 8.5

B/KEY EL. 7.0

B/STEM EL. 11.0

TOC

EL.12.0

WALL-5

FILL

EXISTING FILL IN CONFLICT WITH PROPOSED

CONSTRUCTION TO BE REMOVED (TYP.); SUITABLE

EXCAVATED SOIL TO BE REUSED AS FILL MATERIAL

WALL-6GATE-C

(WPCF DRIVEWAY)

EARTHEN DIKE

DIKE CREST / TOW EL. 17.0 NAVD88 DIKE CREST / TOW EL. 17.0 NAVD88

END WALL-6 / EARTHERN DIKE CONTINUOUS FROM STA 0+00

PROPOSED PROFILE - STATION 12+00 TO 24+00

VERTICAL SCALE: 1"=4'

HORIZONTAL SCALE: 1"=40'

2 4 8 12

VERTICAL SCALE IN FEET

20 40 80 120

HORIZONTAL SCALE IN FEET

NOTES:

1. INDICATED UTILITIES AND CORRESPONDING CONDITIONS ARE BASED ON

INFORMATION OBTAINED FROM PRIOR CONSTRUCTION AND AS-BUILT RECORD

DRAWINGS AND ARE DEPICTED FOR GENERAL REFERENCE. CONTRACTOR TO FIELD

VERIFY AND RECORD ACTUAL LOCATIONS AND CONDITIONS.

2. EXISTING GRADE ELEVATION DATA OBTAINED FROM THE 2016 CONNECTICUT LIDAR

PROJECT, ACCESSED ELECTRONICALLY VIA CTECO.UCONN.EDU. CONTOUR

ELEVATIONS ARE INDICATED IN FEET AND REFERENCED TO THE NORTH AMERICAN

VERTICAL DATUM OF 1988 (NAVD88).

PROPOSED PROFILE - STATION 24+00 TO 30+99

VERTICAL SCALE: 1"=4'

HORIZONTAL SCALE: 1"=40'

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

PROPOSED PROFILES (2)

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-115

AJK

DMB

AJK

AS SHOWN

NOTE: PROPOSED PILE SUPPORTS ARE NOT SHOWN FOR DRAWING CLARITY.

FLOOD SIDE PROTECTED SIDE

F D

N C

O F

C E

F D

N C

O F

C E

CREST EL. 17.0

SOUTH ROAD

FLOOD SIDE PROTECTED SIDE

F D

N C

F D

N C

CREST EL. 17.0

SOUTH ROAD - NORTH ROAD

SOUTH ROAD

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

PROPOSED SECTIONS (1)

STATION: 0+00 TO 3+50

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-201

AJK

DMB

AJK

AS SHOWN

0 4 8 16 24

SCALE IN FEET

PROPOSED GRADE

EXISTING GRADE

DEPLOYABLE FLOOD GATE

SYSTEM STORAGE PAD (TYP.)

UNDERDRAIN (TYP.)

6-FT CHAIN LINK FENCE (TYP.)

FLOOD SIDE PROTECTED SIDE

F D

N C

F D

N C

F D

N C

F D

N C

EL. 11.1±

EL. 11.0

TOW EL. 17.0

NORTH ROAD

FLOOD SIDE PROTECTED SIDE

F D

N C

F D

N C

F D

N C

EL. 11.8±

EL. 11.6±

EL. 11.3±

CREST/TOW EL. 17.0

TOW EL. 17.0

NORTH ROAD

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

PROPOSED SECTIONS (2)

STATION: 4+00 TO 7+50

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-202

AJK

DMB

AJK

AS SHOWN

0 4 8 16 24

SCALE IN FEET

PROPOSED GRADE

EXISTING GRADE

DEPLOYABLE FLOOD GATE SYSTEM STORAGE PAD (TYP.)

ADJUST FINISHED GRADE TO PROVIDE LEVEL SURFACE

UNDERDRAIN (TYP.)

DEPLOYABLE FLOOD GATE SYSTEM STORAGE PAD (TYP.)

ADJUST FINISHED GRADE TO PROVIDE LEVEL SURFACE

APPROXIMATE LOCATION OF EXISTING 54" CMP DRAIN PIPE (TO REMAIN) PER RECORD

DRAWINGS. CONTRACTOR TO FIELD VERIFY LOCATIONS.

PILE FOUNDATIONS (TYP.)

CONCRETE FLOODWALL

6-FT CHAIN LINK FENCE (TYP.)

FLOOD SIDE PROTECTED SIDE

F D

N C

O F

C E

EL. 11.0

TOW EL. 17.0

ACCESS DRIVE

INTERSECTION NORTH ROAD - ACCESS DRIVE

NORTH ROADEL. 9.0

EL. 9.0

FLOOD SIDE PROTECTED SIDE

F D

N C

F D

N C

F D

N C

F D

N C

EL. 11.0

TOW EL. 17.0

NORTH ROAD

EL. 9.0

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

PROPOSED SECTIONS (3)

STATION: 8+00 TO 11+50

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-203

AJK

DMB

AJK

AS SHOWN

0 4 8 16 24

SCALE IN FEET

PROPOSED GRADE

EXISTING GRADE

UNDERDRAIN (TYP.)

PILE FOUNDATIONS (TYP.)

CONCRETE FLOODWALL

GABION WALL

FLOOD SIDE PROTECTED SIDE

F D

N C

O F

C E

F D

N C

O F

C E

BEACON POINT ROAD

INTERSECTION BIRDSEYE STREET - BEACON POINT ROAD

BIRDSEYE STREET

EL. 13.0

TOW EL. 17.0

EL. 13.0

TOW EL. 17.0

EL. 13.0

TOW EL. 17.0

EL. 13.0

TOW EL. 17.0

FLOOD SIDE PROTECTED SIDE

F D

N C

O F

C E

BIRDSEYE STREET

EL. 11.0

TOW EL. 17.0

CREST EL. 17.0

ACCESS DRIVE

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

PROPOSED SECTIONS (4)

STATION 12+00 TO 15+50

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-204

AJK

DMB

AJK

AS SHOWN

0 4 8 16 24

SCALE IN FEET

PROPOSED GRADE

EXISTING GRADE

UNDERDRAIN (TYP.)

CONCRETE FLOODWALL

PILE FOUNDATIONS (TYP.)

6-FT CHAIN LINK FENCE (TYP.)

FLOOD SIDE PROTECTED SIDE

VARIES ±1.5 TO 2 H:1 V

F D

N C

F D

N C

VARIES ±1.5 TO 2 H:1 V

2 H:1 V

F D

N C

O F

C E

2 H:1 V

EL. 11.0

EL. 12.5

EL. 12.0

TOW EL. 18.0

BEACON POINT ROAD

FLOOD SIDE PROTECTED SIDE

F D

N C

2 H:1 V

F D

N C

2 H:1 V

EL. 12.5

TOW EL. 17.0

TOW EL. 18.0 (BEYOND)

TOW EL. 18.0

EL. 12.0

TOW EL. 17.0

EL. 13.0

BEACON POINT ROAD

SHEET NO.

PROJECT NO.DATE: REVISION NO.

PROJ MGR:

DRAWN BY:

REVIEWED BY: CHECKED BY:

SCALE:

PREPARED BY: PREPARED FOR:

GZAGeoEnvironmental, Inc.

Engineers and Scientists www.gza.com

WATER POLLUTION CONTROL FACILITY FLOOD PROTECTION

SYSTEM IMPROVEMENTS, STRATFORD, CONNECTICUT

100% DESIGN DRAWINGS, JULY 2024 - CONTRACT #: 2026-15

PROPOSED SECTIONS (5)

STATION 16+00 TO 19+50

TOWN OF STRATFORD

2725 MAIN STREET

STRATFORD, CT 06615

JULY 2024 18.0172256.70 2

DRAWING

C-205

AJK

DMB

AJK

AS SHOWN

0 4 8 16 24

SCALE IN FEET

PROPOSED GRADE

EXISTING GRADE

ADJACENT PILE CAP (TYP.)

UNDERDRAIN (TYP.)

CONCRETE FLOODWALL

PILE FOUNDATIONS (TYP.)

DEPLOYABLE FLOOD GATE SYSTEM [GATE-A]

CONCRETE PILE CAP AT GATE-A

B.C.L.C RADIUS RETURN (TYP.,

INSTALL ON CONCRETE PILE CAP)

WALL-3 (BEYOND)

FLOOD SIDE PROTECTED SIDE

BEACON POINT ROAD

EL. 12.0

F D

N C

F D

N C

TOW EL. 17.0

EL. 12.0

SECONDARY SETTLING TANK NO. 3

EL. 12.0

BEACON POINT ROAD

FLOOD SIDE PROTECTED SIDE

PROTECTED SIDE

VARIES ±1.5 TO 2 H:1 V

F D

N C

F D

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Other files

File	Type	Posted
2026-15 Flood Protection Project - WPCF_Part3.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part9.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part1.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part2.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part1.pdf.crdownload	CRDOWNLOAD file	Feb 4, 2026
BID 2026-15_Mar_16_26_solicitation_doc.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part7.pdf	PDF	Feb 4, 2026
BID 2026-15_Mar_23_26_solicitation_doc.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part3.pdf.crdownload	CRDOWNLOAD file	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part5.pdf	PDF	Feb 4, 2026
BID 2026-15_Feb_9_26_solicitation_doc.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part11.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part10.pdf.crdownload	CRDOWNLOAD file	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part4.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part6.pdf	PDF	Feb 4, 2026
BID 2026-15_Feb_5_26_solicitation_doc.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part10.pdf	PDF	Feb 4, 2026
2026-15 Addendum 1 - Postponement.pdf	PDF	Feb 4, 2026
2026-15 Flood Protection Project - WPCF_Part8.pdf	PDF	Feb 4, 2026
2026-15 Addendum 2.pdf	PDF	Feb 4, 2026

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File details come from the government source that posted it. Updated Feb 5, 2026.