2-4489 BR2026-1 - Bonnybrook Trail Bridges Final Bid Set Sealed - Advertised 1-12-2026.pdf
PDF 42 MB Posted
- Solicitation number
- 4489
- Issued by
- Fairfield County, Connecticut
About this file
BR2026-1 Bonnybrook Trail Bridges Rehabilitation Project
This is a detailed engineering bid set and project specification document for the City of Norwalk, Connecticut, prepared by Weston & Sampson Engineers, Inc. for the bridge rehabilitation and preservation project at two bridge locations on Bonnybrook Trail: Bridge No. 102-025 (Bonnybrook Trail over Holy Ghost Fathers Brook) and Bridge No. 102-029 (Bonnybrook Trail over Holy Ghost Fathers Brook). The project encompasses comprehensive rehabilitation work including removal of existing cable guiderails and wood posts, repair and repointing of stone masonry headwalls, replacement of missing mortar and stones, concrete repair work, installation of steel-backed timber guiderails, riprap scour protection, water handling and sedimentation control measures, and roadway surface repairs. The final bid set was advertised on January 12, 2026, and includes detailed plan sheets, elevation drawings, water handling plans for staged construction, headwall elevations documenting existing conditions, and typical sections with miscellaneous construction details. The project incorporates phased water handling plans to manage the Holy Ghost Fathers Brook during construction, with cofferdams and sedimentation control systems shown on separate staging sheets for each bridge location.
The specifications include detailed requirements for steel-backed timber guiderail systems with W6x15 steel posts spaced at varying intervals depending on design deflection requirements, concrete repairs using partial depth repair methodologies, stone masonry repointing techniques, and riprap placement for scour areas with water depths up to 36 inches. Material standards referenced include ASTM specifications for steel bolts, galvanizing in accordance with ASTM A123 and A153, welding procedures conforming to AASHTO/AWS D1.5-2020 Bridge Welding Code, and structural steel fabricator certification through the AISC Certification Program. The project specifications address post foundation details, timber guiderail end anchorage systems, sedimentation and erosion control measures including silt fencing, catch basin inlet protection, and existing tree protection requirements. Optional foundation details and base plate configurations are provided for cases where timber rail spans across bridge culverts cannot be achieved. Construction notes indicate mandatory investigation of post locations for ledge presence and underground utilities prior to installation, with controlled low strength material (CLSM) backfill as an alternative to compacted granular fill.
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| 1-4489 BR2026-1 - Bonnybrook Trail Bridges - Final Specifications - 1-12-2026.pdf |
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Text version
DETAILED
ESTIMATE SHEET
DET-1
P:
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6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
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COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
JR / BL
BM
BONNYBROOK T
RAIL
BONNYBROOK ROAD
PC STA 10+45.99
PT STA 11+26.93
PC STA 12+00.01
PT STA 12+88.77
+0
11+00
12+00
+0
+0
+3
N 30 ° 3
9'
" E
.99
N 69° 18' 07" E
73.08'
N
5°
7'
3" W
1.
L=80.94' R=120.00' Δ=38° 38' 47"
L=88.76' R=60.00' Δ=84° 45' 50"
W W
W W
GENERAL PLAN
EXIST. CONDITIONS
CS-1
BRIDGE NO. 102-025 (N-S10)
BRIDGE NO. 102-029
ORDINARY HIGH WATER
ORDINARY HIGH WATER
ORDINARY HIGH WATER
LIMIT OF EXIST. CABLE GUIDERAIL
(TO BE REMOVED)
BONNY BROOK
TRAIL
HOLY GHOST
FATHERS BROOK
OVERHEAD WIRES
TREE LOCATION
BASE FLOOD ELEVATION
PROPERTY LINE
EXISTING STONE WALL
EXISTING CABLE GUIDERAIL
OHW OHW
LEGEND
TIMBER GUIDERAIL
TIMBER GUIDERAIL
TIMBER GUIDERAIL
EXIST. CABLE GUIDERAIL
(TO BE REMOVED)
PLAN
FL
O
W
FLOW
FLOW
P:
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T\ No rw alk
\O n-
Ca ll D
PW
-2
3\E
NG
-3
6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
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Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
30" RCP
30" RCP
30" RCP
17'-6"L X 1/4"W
ROADWAY CRACK
FW ROADWAY X 1"W CRACK
FW ROADWAY X 1"W CRACK
ROADWAY
MAPCRACKING
UP TO 1"W
ROADWAY
MAPCRACKING
UP TO 1"W
POTHOLES
3'L X 8"W X 1"D
EXIST. 19 WOOD POSTS
WITH 2 STEEL CABLES
(TO BE REMOVED)
68 69
EDGE OF CHANNEL
EXIST. STONE WALL
13" DIA. X 1" DEEP
DEPRESSION FILLED
WITH DIRT
2'-0"±
(TYP.)
1'-6"±(TYP.)
EXIST. STEEL CABLE WITH
BURIED END TREATMENT
(TO BE REMOVED)
HO
LY G
HO
ST
FATHERS BRO
O
K
FLOW
PT STA 11+26.93
N
9°
8'
7" E
.0
8'
DRIVEWAY TO PRIVATE PROPERTY
+5
STEEL-BACKED TIMBER
GUIDERAIL SYSTEM
4'-6" (MIN.)
4'-6" (MIN.)
TOP OF MASONRY WALL
EL. 73.2
OHW
O H
W
OHW
O
HW
OHW
OHW
OHW
OHW
O H
W
ROW
ROW
W W
W W
W W
W
W
INSTALLATION OF POSTS AT 1' CLEAR
FROM THE 30" RCP SHALL BE
CAREFULLY DUG/DRILLED TO AVOID
CONFLICT WITH RCP
PLAN
BRIDGE NO.
102-025 (N-S10)
S-1
OVERHEAD WIRES
ORDINARY HIGH WATER
EXISTING STEEL CABLE
GUIDERAIL WITH WOOD
POSTS
OHW OHW
LEGEND
OHW
PLAN
FLOW
P:
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AD
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COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
30" RCP
30" RCP
EXIST. 19 WOOD POSTS
WITH 2 STEEL CABLES
(TO BE REMOVED)
68 69
EDGE OF CHANNEL
EXIST. STONE WALL
2'-0"±
(TYP.)
1'-6"±(TYP.)
EXIST. STEEL CABLE WITH
BURIED END TREATMENT
(TO BE REMOVED)
2'
(TYP.)
2'
(TYP.)
HO
LY G
HO
ST
FATHERS BRO
O
K
PT STA 11+26.93
N
9°
8'
7" E
.0
8'
DRIVEWAY TO PRIVATE PROPERTY
+5
4'-6" (MIN.)
4'-6" (MIN.)
TOP OF MASONRY WALL
EL. 73.2
OHW
OHW
O H
W
OHW
O
HW
OHW
OHW
OHW
OHW
O H
W
W
W W
W W
W W
W
W
WATER HANDLING
PLAN STAGE 1
BRIDGE NO.
102-025 (N-S10)
S-2
OVERHEAD WIRES
ORDINARY HIGH WATER
COFFERDAMS
SEDIMENTATION CONTROL SYSTEM
PROPERTY LINE
OHW OHW
LEGEND
OHW
WATER HANDLING PLAN STAGE 1
FLOW
FLOWFLOW
P:
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Ca ll D
PW
-2
3\E
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-3
6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
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Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
30" RCP
30" RCP
EXIST. 19 WOOD POSTS
WITH 2 STEEL CABLES
(TO BE REMOVED)
68 69
FLO
W
EDGE OF CHANNEL
EXIST. STONE WALL
2'-0"±
(TYP.)
1'-6"±(TYP.)
EXIST. STEEL CABLE WITH
BURIED END TREATMENT
(TO BE REMOVED)
2'
(TYP.)
HO
LY G
HO
ST
FATHERS BRO
O
K
PT STA 11+26.93
N
9°
8'
7" E
.0
8'
DRIVEWAY TO PRIVATE PROPERTY
+5
4'-6" (MIN.)
4'-6" (MIN.)
TOP OF MASONRY WALL
EL. 73.2
OHW
OHW
O H
W
OHW
O
HW
OHW
OHW
OHW
OHW
O H
W
W
W W
W W
W W
W
W
WATER HANDLING
PLAN STAGE 2
BRIDGE NO.
102-025 (N-S10)
S-3
OVERHEAD WIRES
ORDINARY HIGH WATER
COFFERDAMS
SEDIMENTATION CONTROL SYSTEM
PROPERTY LINE
OHW OHW
LEGEND
OHW
WATER HANDLING PLAN STAGE 2
FLOW
FLOW
FLOW
P:
\C
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\O n-
Ca ll D
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3\E
NG
-3
6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
\N or wa lk
Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
12'-5" 6'-0"24'-0"
APPROX. STREAMBED
TOP OF WALL EL. 73.2
TOP OF WALL EL. 70.0±
TOP OF WALL EL. 71.0±
MINOR CONCRETE EDGE
SPALLING AT PIPE OPENING
DEBRIS AT PIPE OPENING
(TO BE REMOVED)
3' -4
CONCRETE HEADWALL
" 16
WOOD FORMWORK LEFT IN PLACE
(TO BE REMOVED)
MODERATE TO HEAVY EFFLORESCENCE
AT HEADWALL (REPOINT THE INTERFACE
BETWEEN STONE MASONRY AND
CONCRETE MASONRY)
INVERT. 67.50INVERT. 67.78INVERT. 67.90
WOOD FORMWORK LEFT IN PLACE
(TO BE REMOVED)
INVERT. 67.80
REPLACE MISSING MORTAR
REPLACE MISSING MORTAR
(TO BE REPOINTED)
2'L X 16" H X 7" DEEP MISSING STONE
8"L X 4"H X 12"D MISSING STONE
2"L X 6"H X 6"D MISSING STONE
(TO BE RECHINKED PRIOR TO
STONE MASONRY REPOINTING)
2 LF OF MISSING MORTAR
(TO BE REPOINTED)
12'-8"6'-6" 6'-6"
30" DIA.(TYP.)
INVERT. 67.54
INVERT. 67.51INVERT. 67.39INVERT. 67.50
" 17
7" UNDERMINING
OF PIPE
12'-6"±
TOP OF WALL EL. 70.0
4' -6
APPROXIMATE STREAMBED
EXIST. GRADE AT REAR OF WALL
REPLACE MISSING MORTAR
TOP OF WALL EL. 71.5
16'-9"±
2' -6
EXIST. GRADE
EXIST. GRADE AT
REAR OF WALL
REPLACE MISSING MORTAR
HEADWALL
ELEVATIONS
BRIDGE NO.
102-025 (N-S10)
S-4
SOUTH HEADWALL ELEVATION - DOWNSTREAM
NORTH HEADWALL ELEVATION - UPSTREAM NORTH HEADWALL ELEVATION - UPSTREAM
NORTH HEADWALL ELEVATION - UPSTREAM
P:
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\O n-
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6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
\N or wa lk
Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
FLOW
30" RCP
30" RCP
30" RCP
1'
FW ROADWAY X 1"W CRACK
FW ROADWAY X 1"W CRACK
ROADWAY
MAPCRACKING
UP TO 1" W
ROADWAY
MAPCRACKING
UP TO 1" W
748'±
10" DIA. X 2" DEEP
DEPRESSION AREA
HOLY GHOST
FATHERS BROOK
+0
+5
+0
O H
W
OHW
O H
W O
H
WOHW
OHW
OHW
OHW
OHW
OHW
OHW
OHW
OHW
INSTALLATION OF POSTS AT 1' CLEAR
FROM THE 30" RCP SHALL BE
CAREFULLY DUG/DRILLED TO AVOID
CONFLICT WITH RCP
W W
W W
W W
W W
PLAN
BRIDGE NO.
102-029
S-5
OVERHEAD WIRES
ORDINARY HIGH WATER
EXISTING STEEL CABLE
GUIDERAIL WITH WOOD
POSTS
TREE STUMP
TREE
OHW OHW
LEGEND
OHW
PLAN
FLOW
FLOW
P:
\C
T\ No rw alk
\O n-
Ca ll D
PW
-2
3\E
NG
-3
6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
\N or wa lk
Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
30" RCP
30" RCP
1'
748'±
1' (T
YP.)
1' (TYP.)
FLOW
HOLY GHOST
FATHERS BROOK
+0
N
5°
7'
3" W
1.
+5
+0
O H
W
OHW
O H
W O
H
WOHW
OHW
OHW
OHW
OHW
OHW
OHW
OHW
OHW
OHW
W W
W W
W W
W W
W W
S-6
WATER HANDLING
PLAN STAGE 1
BRIDGE NO. 102-029
OVERHEAD WIRES
ORDINARY HIGH WATER
COFFERDAMS
SEDIMENTATION CONTROL SYSTEM
EXISTING GUIDERAIL
PROPERTY LINE
TREE STUMP
TREE
OHW OHW
LEGEND
OHW
WATER HANDLING PLAN STAGE 1
FLOW
FLOW
P:
\C
T\ No rw alk
\O n-
Ca ll D
PW
-2
3\E
NG
-3
6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
\N or wa lk
Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
30" RCP
30" RCP
1'
748'±
1' (TYP.)1' (TYP.)
FLOW
HOLY GHOST
FATHERS BROOK
+0
N
5°
7'
3" W
1.
+5
+0
O H
W
OHW
O H
W O
H
WOHW
OHW
OHW
OHW
OHW
OHW
OHW
OHW
OHW
OHW
W W
W W
W W
W W
W W
WATER HANDLING
PLAN STAGE 2
BRIDGE NO. 102-029
S-7
OVERHEAD WIRES
ORDINARY HIGH WATER
COFFERDAMS
SEDIMENTATION CONTROL SYSTEM
PROPERTY LINE
TREE STUMP
TREE
OHW OHW
LEGEND
OHW
WATER HANDLING PLAN STAGE 2
FLOW
FLOW
FLOW
P:
\C
T\ No rw alk
\O n-
Ca ll D
PW
-2
3\E
NG
-3
6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
\N or wa lk
Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
18'-6"
MEASURED ALONG FRONT FACE OF WALL
30" DIA.
12"L X 12"H X 4" D VOID
(SEE NOTE 2)
14"L X 3"H X 6" D VOID
(SEE NOTE 2)
3"L X 6"W X 5" D VOID
(SEE NOTE 2)
8"L X 1"H X 6"D VOID
(SEE NOTE 2)
2"L X 2"H X 3"D
(SEE NOTE 2)
9"L X 6"H X 1'-10"D VOID
(SEE NOTE 2)
1'L X 1'-4"W X 2'D
VOID WITH
MISSING STONE
10" APPROX. SCOUR DEPTHDEBRIS OBSTRUCTING
PIPE OPENING
TOP OF WALL EL. 75.18'±
4' -0
EXIST. GRADE AT REAR OF WALL
EXISTING CHAIN LINK FENCE
EXIST. GRADE
" 9" 6" 6"
6'-0"±
MEASURED ALONG FRONT FACE OF WALL
10"L X 2"H X 9"D VOID
(SEE NOTE 2)
8"L X 5"H X 10"D VOID
(SEE NOTE 2)
4'L X 2"H X 4"D VOID
(SEE NOTE 2)
6"L X 5"H X 5"D VOID
(SEE NOTE 2)
4' -0
4 1/2"L X 1 1/2"H X 3"D VOID
(SEE NOTE 2)
9"L X 2"H X 3"D VOID
(SEE NOTE 2)
12"L X 2"H X 3"D VOID
(SEE NOTE 2)
10"L X 16"W X 9"D
MISSING STONE (SEE NOTE 2)
4"L X 2"H X 14" D VOID
(SEE NOTE 2)
6"L X 6"H X 10"D VOID
BETWEEN PIPES
6"L X 6"H X 10"D VOID
BETWEEN PIPES
TOP OF WALL EL. 73.81'±
4' -0
" 9"
14'-0"±
MEASURED ALONG FRONT FACE OF WALL
4'-0"±
MEASURED ALONG FRONT FACE OF WALL
HEADWALL
ELEVATIONS
BRIDGE NO.
102-029
S-8
WEST HEADWALL ELEVATION - DOWNSTREAM
EAST HEADWALL ELEVATION - UPSTREAM
P:
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T\ No rw alk
\O n-
Ca ll D
PW
-2
3\E
NG
-3
6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
AD
\N or wa lk
Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
SCOUR AREA WITH WATER
DEPTH UP TO 36" DEEP
(TO BE FILLED WITH RIPRAP)
FLOW
SCOUR AREA WITH WATER
DEPTH UP TO 36" DEEP
(TO BE FILLED WITH RIPRAP)
FLOW
TYPICAL SECTIONS
AND MISC DETAILS
S-9
TYPICAL HEADWALL SECTION
STONE MASONRY REPOINTING DETAIL
TYPICAL CONCRETE REPAIR - PLAN VIEW
PARTIAL DEPTH REPAIR DETAIL
RIPRAP DETAIL
WATER HANDLING COFFERDAM
BRIDGE NO. 102-029 (N-S10)
TYPICAL ROADWAY SECTION
BRIDGE NO. 102-025 (N-S10)
TYPICAL ROADWAY SECTION
P:
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\O n-
Ca ll D
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-2
3\E
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-3
6 B on ny br oo k B rid ge s\5 P ro jec t N am e C
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COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
TYPICAL STEEL
BACKED TIMBER
GUIDERAIL
DETAILS
GR-1
SYSTEM 3 SYSTEM 2
System 3
System 2
Standard System
Standard System LArea Of Concern Plus 2 Posts (see sketch)
Min. Length Needed
Maximum Design
Deflection (ft)
1'
2' - 6''
4'
10' 10'
10'
50' 70'
70'
70'70'
60'
W6x15 Posts Spaced at
2'- 6''
W6x15 Posts Spaced at
5'
W6x15 Posts Spaced at
10'
TIMBER GUIDERAIL
DESIGN DEFLECTION CHART
POST INSTALLATION NOTES:
1. SEE SHEETS S-1 AND S-2 FOR TIMBER GUIDERAIL CONNECTION DETAILS
TO CONCRETE END BLOCK.
2. PRIOR TO GUIDERAIL POST INSTALLATION THE CONTRACTOR SHALL
INVESTIGATE POST LOCATIONS FOR THE PRESENCE AND DEPTH OF LEDGE
AND UNDERGROUND UTILITIES.
3. 20" DIA. EXCAVATED HOLE SHALL BE BACKFILLED WITH SUITABLE
MATERIAL, OR GRANULAR FILL COMPACTED IN 6" LIFTS BEFORE DRIVING POST
OR POSTS MAY BE SET IN EXCAVATED HOLE AND BACKFILLED WITH
CONTROLLED LOW STRENGTH MATERIAL (CLSM).
TOP OF SLOPE
DELINEATOR
DELINEATOR
SEE DETAIL "D"
6'
DIA. x 8'' ROUND
HEAD BOLT WITH HEX NUT
& WASHER (TYP.)
DIA. x 6'' ROUND
HEAD BOLT WITH HEX NUT
& WASHER (TYP.)
6'' x x 2'- 6''
STRAIGHT SPLICE PLATE
1''
3''
3''
1''
1''
1'' 1''
4'' 4''
W6 x 15 STEEL POST, 6' - 6'' LONG
4'' x 8'' x 11''
WOOD BLOCKOUT
2' - 6''
2''
1 ''
3'
2' - 6''
3'' 3'' 7�'' 3''
8"' x 11
4''
BOLT SLOTS (TYP.)
" x 2 "
BOLT SLOTS
7�'' 3'' 3''
1'' MIN.
EXPOSED
GALVANIZING
3''
1''
3''
1'' MIN.
EXPOSED
GALVANIZING
W6 x 15
STEEL POST
6'' x 12'' x 10'
ROUGH SAWN
TIMBER RAIL
'' DIA. HOLE (TYP.)
6'' x 12'' x 10'
ROUGH SAWN
TIMBER RAIL
TIMBER GUIDERAIL NOTES:
POST CONNECTIONPOST CONNECTION
A
DELINEATOR SEE NOTE 2,
TABLE 1 AND DETAIL D
STRAIGHT
SPLICE
PLATE
STEEL SPLICE PLATE DETAIL
6'' x 3/8'' x 2'- 6''
2'
- 6
(S
EE
N
O
TE
TIMBER GUIDERAIL AT SIDEWALK
2:1 MAX.
5. GUIDERAIL HEIGHT MAY VARY UP TO 2" PLUS OR MINUS THE HEIGHT SHOWN
IN THE DETAILS TO ACHIEVE A SMOOTH AND CONTINUOUS GUIDERAIL PROFILE.
6. 7'-6" LONG POSTS MAY BE USED IN LOCATIONS WHERE 2' MIN SHELF
IS NOT ATTAINABLE. GALVANIZED COATING LIMITS SHALL BE INCREASED BY
1'. PAYMENT FOR EXTRA LONG POSTS SHALL BE INCLUDED WITH THE ITEM
FOR TIMBER GUIDERAIL.
1. MATERIALS AND CONSTRUCTION OF THE TIMBER GUIDERAIL
SHALL CONFORM TO SPECIAL PROVISION PROVIDED WITH THE PROJECT.
2. DELINEATORS SHALL BE PLASTIC INVERTED T-SECTIONS IN ACCORDANCE
WITH DETAIL "D". REFLECTOR SPACING SHALL BE 50 FEET, AND POSITIONED
PERPENDICULAR TO THE ADJACENT EDGE OF LANE.
DO NOT ATTACH REFLECTORS ON FLARE OR TERMINAL SECTIONS. REFLECTIVE
SHEETING SHALL BE SILVER-WHITE ON ALL RAIL SECTIONS ADJACENT TO THE
RIGHT SHOULDER OF TRAVEL LANES. DELINEATORS SHALL BE INCLUDED IN THE
COST FOR "TIMBER GUIDERAIL."
3. TWO ADDITIONAL 5 8" DIA. X 4" LONG LAG SCREWS AND WASHERS
SHALL BE INSTALLED AT ALL MID-SPAN POINTS FOR STANDARD SYSTEMS.
4. ALL CONNECTION HARDWARE SHALL BE SUFFICIENTLY TIGHTENED TO
ACCOMMODATE FOR SHRINKAGE OF THE WOOD ELEMENTS.
2' (TYP.)
SEE NOTE 6
1 ''
6'
6'
3'' 3 "
4" DIA.
HOLES
POST DETAIL W6 X 15
WITH CURBING
2'-0"
UNCOATED
ASTM A 588
STEEL
4' - 6''
GALVANIZED IN
ACCORDANCE
WITH
ASTM A 123
SEE NOTE 6
CLEAR ZONE OFFSET
EDGE OF
PAVEMENT
a b
TOP OF FILL
SIDE SLOPE
GROUND
LINE
C
#4
#4
#4 (TYP.)
FULLY
GALVANIZED
POSTS
TIMBER RAIL
SEE DETAIL A
L
CLASS ''A''
CONCRETE
SLOPE 10:1 MAX.
PAY LIMIT
TIMBER GUIDERAIL
END ANCHORAGE 30'
2'
3' -4
" 6"
10'
(TYP.)
1 ''
3'' 3''
3'
5'
1' 1'
2'
'' DIA. HOLES FOR (4)
'' DIA. ROUND HEAD
BOLTS. TWO EXTRA SETS OF
HOLES FOR POSITIONING
TIMBER RAIL
ELEVATION
TIMBER GUIDERAIL END ANCHORAGE
DETAIL B
PLAN VIEW FOR ANCHOR
ELEVATION
ELEVATIONPLAN
PLAN
6'' x 12'' x 10'
TIMBER RAIL
3''(4) 1 ‚'' DIA
ANCHOR BOLTS
MIN. 1'-3''
INTO CONCRETE
WT 15 x 86.5
SEE DETAIL C
1'- 6''
2'-3''
3'' MIN.
COVER
3'
WT 15 x 86.5
SEE DETAIL C
(4) 11
4" DIA.
ANCHOR BOLTS
MIN. 1'-3''
INTO CONCRETE
(4) 3 4" DIA. x 8''
LONG ROUND HEAD BOLT
WITH NUT & WASHER (TYP.)
#4 (Typ.)
4" MIN.
DETAIL C
WT 15 x 86.5 (GALVANIZED)
END ANCHORAGE NOTES:
1. MATERIALS AND CONSTRUCTION OF THE TIMBER GUIDERAIL
END ANCHORS SHALL CONFORM TO THE SPECIAL PROVISIONS PROVIDED
WITH THE PROJECT. ALL HARDWARE IN CONTACT WITH THE GROUND
SHALL BE GALVANIZED IN ACCORDANCE WITH THE SPECIAL PROVISION.
2. BEGIN THE FLARE AT THE NEAREST POST TO A TRANSITION POINT
BETWEEN FILL AND CUT AS DIRECTED BY THE ENGINEER.
3. THE GUIDERAIL FLARE SHOWN ON THE PLAN SHEETS IS THE MINIMUM
LENGTH AND RATE REQUIRED AS DIRECTED BY THE ENGINEER.
FLARE THE GUIDERAIL SO THAT THE TERMINAL SECTION IS OUTSIDE THE
CLEAR ZONE.
SIDE VIEW FRONT VIEW
FRONT VIEW
ELEVATION
3'
1 ''
7 '' 7 ''
3 " 1 ''
1 ''
8 "
TYPE V
RETROREFLECTIVE
SHEETING
POLYURETHANE/VINYL
HINGE
2"
4"
3"
3"
‚" x " SLOT USE
(4) 1" LONG " DIA.
WOOD SCREWS FOR ATTACHING
DELINEATOR. SCREW SHALL BE
GALVANIZED AFTER FABRICATION
IN ACCORDANCE W/ ASTM A-153.
DELINEATOR
DETAIL D
REAR VIEW ELEVATION
DETAIL A
ELEVATION VIEW FOR END ANCHORAGE
N.T.S.
N.T.S.
N.T.S.
N.T.S.
N.T.S.
N.T.S.
N.T.S.
N.T.S.
N.T.S.
N.T.S.N.T.S.
TOP VIEW
FLARE LENGTH VARIES
(SEE NOTE 3)
SEE DETAIL B
NOTE: SEE PLAN SHEET FOR
FLARE RATE a:b
18"
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COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
POST FOUNDATION
DETAILS
(OPTIONAL)
GR-2
℄ 1" x 1 38"
SLOTTED HOLES
℄ 1" x 1 38"
SLOTTED HOLES
BASE PLATE DETAIL (OPTIONAL)
SCALE: 3" = 1'-0"
4" THICK
BASE PLATE
12"
8"
8"
STANDARD TIMBER GUIDERAIL
W6x15 STEEL POST
BACK FLANGE AND WEB
1/2
FRONT FLANGE
1/2
GENERAL NOTES
1. STEEL BACKED TIMBER GUIDERAIL FOUNDATION DETAIL IS OPTIONAL IF CONTRACTOR CANNOT FIND
TIMBER RAIL TO SPAN BETWEEN POST OVER BRIDGE CULVERT.
2. CONTRACTOR TO MODIFY TIMBER GUIDERAIL W6x15 STEEL POST AS SHOWN AND CAST IN PLACE A 2'x1.5' CONCRETE BLOCK TO ANCHOR THE POST AT THE LOCATION SHOWN.
3. WELDING DETAILS & NOTES -
3.1 WELDING DETAILS, PROCEDURES, AND TESTING METHODS SHALL CONFORM TO THE
AASHTO/AWS D1.5 - 2020 BRIDGE WELDING CODE, UNLESS OTHERWISE NOTED ON THE
PLANS.
3.2 ALL BOLTS SHALL MEET THE REQUIREMENTS OF ASTM A325 TYPE 1, EXCEPT AS NOTED
OTHERWISE. ALL NUTS SHALL MEET THE REQUIREMENTS OF ASTM A653 AND ALL WASHERS
SHALL MEET THE REQUIREMENTS OF OF ASTM F436. ALL BOLTS, NUTS, AND WASHERS
SHALL BE MECHANICALLY GALVANIZED IN ACCORDANCE WITH ASTM B695, CLASS 50.
3.3 FIELD SPLICES WILL NOT BE ALLOWED EXCEPT WITH THE WRITTEN PERMISSION OF THE
ENGINEER PRIOR TO THE SUBMISSION OF SHOP DRAWINGS. IF ALLOWED, THESE SPLICES
SHALL BE DESIGNED BY THE CONTRACTOR, AND APPROVED BY THE ENGINEER. THE COST
OF THESE SPLICES, INCLUDING THE COST OF DESIGN, SHALL BE AT NO EXTRA EXPENSE
TO THE CITY OF NORWALK.
3.4 ALL WEB TO FLANGE, WEB TO BEARING STIFFENER AND BEARING STIFFENER TO FLANGE
FILLET WELDS SHALL BE INSPECTED BY THE MAGNETIC PARTICLE METHOD.
3.5 MULTIPLE PASS WELDS, INSPECTED BY THE MAGNETIC PARTICLE METHOD SHALL HAVE
EACH PASS OR LAYER INSPECTED AND ACCEPTED BEFORE PROCEEDING TO THE NEXT
PASS OR LAYER, AS DETERMINED BY THE ENGINEER.
3.6 STRUCTURAL STEEL FABRICATORS SHALL BE CERTIFIED UNDER THE AISC CERTIFICATION
PROGRAM CATEGORY BRIDGE FABRICATOR SIMPLE (SBR).
4. NUTS FOR THREADED ANCHOR STUDS CONNECTING THE BASE PLATE TO THE CONCRETE SHALL
BE TIGHTENED TO A SNUG FIT AND GIVEN AN ADDITIONAL 18" TURN.
5. COST OF POST FOUNDATION SHALL BE INCLUDED UNDER ITEM "STEEL BACKED TIMBER GUIDERAIL".
6. CONCRETE TO BE CLASS PCC 04460.
TIMBER GUIDERAIL FOUNDATION DETAIL (OPTIONAL)
SCALE: 1-1/2" = 1'-0"
W6x15 POST
1'-6" x 1'-6"
CHAMFER CORNERS
(TYP.)
2' -0
"* REINFORCING CAPACITY SHALL
MEET OR EXCEED THAT SHOWN
6"
3"
8" THICK APPROVED
PREFORMED PAD
4" BASE PLATE
4" Ф A36 BOLTS (TYP.)
2' -6
6'' x 12'' TIMBER RAIL
WOOD BLOCK OUT
4" x 8" x 11"
4"
4 34"
6"
1 4"
3"
4 - #5
2" CLR. (TYP.)
#4@6" STIRRUPS
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COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
SEDIMENTATION
AND EROSION
CONTROL DETAILS
SD-1
SUPPORT NETTING
FABRIC
SEDIMENT CONTROL
DIRECTION OF FLOW
FABRIC
SUPPORT NETTING
SEDIMENT CONTROL
BACKFILL
DIRECTION OF FLOW
6"
6"
2' -6
1'
-4
1 1/2"x1 1/2" (MIN)
SEDIMENT CONTROL
SUPPORT NETTING
8'
SPACING BETWEEN
POSTS
POST COUPLER
BACKFILL
SECTION B-B ELEVATION
SECTION A-A
(SILT FENCE)
N.T.S.
FABRIC
2"
INTERMEDIATE POST
A
B
B
A
OAK POSTS
CATCH BASIN INLET PROTECTION
SIDE VIEW
GENERAL
SEDIMENTATION AND EROSION CONTROL DETAIL
EXISTING TREE PROTECTION
P:
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AD
\N or wa lk
Bo nn yb ro ok B rid ge s.d wg
COPYRIGHT © 2023 WESTON & SAMPSON, INC.
Project:
www.westonandsampson.com Consultants:
Seal:
Revisions:
No. Date Description
Issued For:
Drawing Title:
Sheet Number:
Scale:
W&S File No.:
W&S Project No.:
Approved By:
Date:
Reviewed By:
Drawn By:
COA:
BRIDGE REHABILITATION
BONNYBROOK TRAIL OVER
HOLY GHOST FATHERS BROOK
NORWALK CT
BID SET
JANUARY 2026
ENG 23-3266
Weston & Sampson Engineers, Inc.
712 Brook Street
Rocky Hill, CT 06067
978.532.1900 800.SAMPSON
JR / BL
SIDE VIEW
| Sheets and Views |
| Norwalk Bonnybrook Bridges-COVER |
| Norwalk Bonnybrook Bridges-DET-1 |
| Norwalk Bonnybrook Bridges-CS-1 LOC MAP |
| Norwalk Bonnybrook Bridges-S-1 |
| Norwalk Bonnybrook Bridges-S-2 WH |
| Norwalk Bonnybrook Bridges-S-3 WH |
| Norwalk Bonnybrook Bridges-S-4 |
| Norwalk Bonnybrook Bridges-S-5 |
| Norwalk Bonnybrook Bridges-S-6 WH |
| Norwalk Bonnybrook Bridges-S-7 WH |
| Norwalk Bonnybrook Bridges-S-8 |
| Norwalk Bonnybrook Bridges-S-9 |
| Norwalk Bonnybrook Bridges-GR-1 |
| Norwalk Bonnybrook Bridges-GR-2 |
| Norwalk Bonnybrook Bridges-SD-1 |
File details come from the government source that posted it. Updated .