StandConstDetails 38.pdf
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- Solicitation number
- W912DS22B0003
About this file
This document provides construction details for precast concrete inlets including dimensions, reinforcement requirements, and general notes. Key specifications include minimum wall thicknesses of 6 inches for precast concrete and 8 inches for brick, reinforced walls and foundations, precast unit weights ranging from 630 to 1,030 pounds, and ladder rung placement. Depths exceeding 10 feet require increased wall and foundation thickness. Reinforcement includes wire mesh and rebar at varying spacings depending on unit size. Joints are to be grouted and foundations placed on compacted stone. The related federal contract opportunity is for the Port Monmouth Hurricane and Storm Damage Reduction Project in Middletown Township, New Jersey being conducted by the Department of the Army Corps of Engineers Engineering District New York.
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DEPTH BELOW
TOP OF GRATE
HORIZONTAL
REINF.
VERTICAL
REINF.
WALL
THK.
DEPTH BELOW
TOP OF GRATE
STAGE 2
STAGE 1
A
A
B
B
IN
LET W
ALL
PIP
E W
ALL
NOTE:
WIRE MESH
WALL VARIES
WALL VARIES
1'-4"
A
A
COPOLYMER POLYPROPYLENE PLASTIC
A
A
A
A
B
B
C C
ALTERNATE REINFORCEMENT
3"
3"
3"
MIN.
3"
1"
1"
1"
1"
1"
1"
1"
1"
1"
1"
1"
1"
7" 2"
#13 @ 18" C.C.
#13 @ 18" C.C.
#13 @ 18" C.C.
6"
LADDER RUNGS FACING TRAFFIC 12" C TO C
6"
5"
8"
10" 53"
6"
6"
6"
N.T.S.
NEW JERSEY DEPARTMENT OF TRANSPORTATION
CONSTRUCTION DETAILS
INLET GENERAL DETAILS
ELEVATION PLAN
LADDER RUNG DETAIL
CONNECTION OF PIPE AND
INLET FOR PRECAST INLET
RISER JOINT DETAIL
FOR PRECAST INLETS
SECTION A-A SECTION B-B
SECTION A-A SECTION B-B
SECTION C-C
SECTION A-A
2•"
4†"
2…"
2ƒ" ƒ" TO •" ƒ" TO •" ƒ" TO 1"
1•"
3•"
3•" ƒ
1•"
4…" 4…"
3‡"
2•"ƒ" ƒ
1•"
1…"
3'-11ƒ"
4†"4…" 4…" 4…"4†"4†"4…"
1‚" ƒ"
0' TO 10'-0"
10'-1" TO 15'-0"
15'-1" T0 20'-0"
REINFORCING SHOWN FOR PRECAST INLETS IS THE MINIMUM
REQUIRED. ADDITIONAL REINFORCING FOR HANDLING IS THE
RESPONSIBILITY OF THE CONTRACTOR.
1"` N
ON-S
HRIN
K
GROUT
1.
2.
3.
4.
5.
6.
7.
8.
9.
COPOLYMER POLYPROPYLENE PLASTIC LADDER RUNGDETAIL OF INVERT FOR INLET WITHOUT CONTINUOUS PIPE
FOUNDATION AND INVERT TO BE CONSTRUCTED
IN TWO STAGES. THE TOP SURFACE OF
STAGE 1 TO BE LEFT ROUGH.
PICK HOLE
RIBS TAPER ƒ" TO 1"
#13 @ 10" C.C.
#13 @ 8" C.C.
#13 @ 6" C.C.
NOTE:
NOTE:
NOTE:
NOTE:
CORBELLING OF INLET WALLS WILL BE PERMITTED AT THE
RATE OF • INCH PER 8 INCHES OF HEIGHT; MAXIMUM CORBEL
6 INCHES PER WALL.
T P
V
I L
L S
E P
N
J D
O T
P R
J W
S V s y s t e m
N
J D
O T
W S
P r o j e c t s N
J D
O T
E
ID
d a t e p e n t a b l e s c a l e file=
EXTERIOR WALL
0' TO 10'-0"
10'-1" TO 15'-0"
15'1" TO 20'0"
NOTE:
MINIMUM WEIGHTS
WEIGHT OF FRAME = 630#
WEIGHT OF COVER = 400#
LADDER RUNGS FACING TRAFFIC 12" C TO C
NOTE:
CD-602-1.1
CD-602-1
CD-602-1.2 CD-602-1.3
CD-602-1.4 CD-602-1.5
CD-602-1.6
CD-602-1.7 CD-602-1.8
JOINT TO BE GROUTED WITH MORTAR
BY CONTRACTOR
BICYCLE SAFE GRATE
(CAST IRON)
REINFORCEMENT STEEL IS IN METRIC UNITS.
#13 GRADE 60 REINFORCEMENT STEEL
WWF 3 x 6 W6 ADD #10 REINFORCEMENT
STEEL @ 18" HORIZONTAL.
WWF 3 x 6 W6 WIRES SPACED AT 3"
TO RUN HORIZONTAL IN ALL CASES.
WWF 3 x 6 W6 ADD #10 REINFORCEMENT
STEEL @ 9" HORIZONTAL OR ADD #13
REINFORCEMENT STEEL AT 15" HORIZONTAL.
1„" `„"
14" - 16"
12" - 14"
" 1" MIN.
B D
C D
-0 -O
R
IG
IN
A
L S
H E
E T
INLETS MAY BE CONSTRUCTED OF BRICK, CONCRETE,
CONCRETE BLOCK, OR PRECAST CONCRETE. WALLS TO BE
8 INCHES THICK IF BRICK AND 6 INCHES THICK IF CONCRETE,
CONCRETE BLOCK, OR PRECAST CONCRETE. INLET FOUNDATIONS
AND INVERTS TO BE CLASS B CONCRETE.
EXCEPT FOR INLETS TYPE A AND C, FOUNDATIONS AND
INVERTS TO BE CONSTRUCTED IN TWO STAGES, AND
THE BOTTOM OF THE FOOTINGS TO BE 8 INCHES BELOW
THE OUTER WALL OF THE LOWEST PIPE IN THE INLET.
WHEN THE DEPTH OF A PRECAST INLET EXCEEDS 10 FEET AS
MEASURED FROM TOP OF GRATE TO INVERT, THE FOUNDATION
IS TO BE INCREASED TO 12 INCHES. WHEN ROCK IS
ENCOUNTERED, THE DEPTH OF THE FOUNDATION IS NOT TO
BE INCREASED.
WHEN THE DEPTH OF AN INLET THAT IS NOT PRECAST
EXCEEDS 10 FEET AS MEASURED FROM TOP OF GRATE
TO INVERT, WALLS BELOW A DEPTH OF 8 FEET TO BE
12 INCHES THICK AND THE DEPTH OF FOUNDATION
INCREASED TO 12 INCHES. WHEN ROCK IS ENCOUNTERED,
THE DEPTH OF THE FOUNDATION NOT TO BE INCREASED.
SEE GENERAL NOTE 9, CD-602-1.6
SEE GENERAL NOTE 9, CD-602-1.6
SQUARE FRAMED MANHOLE CASTING, CIRCULAR COVER
PLACE INLET FOUNDATIONS WHICH ARE PRECAST ON A
6 INCH THICK BED OF COMPACTED COARSE AGGREGATE
#57. EXTEND THE COARSE AGGREGATE 6 INCHES
BEYOND THE HORIZONTAL LIMITS OF THE INLET FOUNDATION.
WEIGHT 300 ` 15 LBS.
MINIMUM WALL REINFORCEMENT FOR PRECAST INLETS
TYPES A, B, C, E, D-1, D-2, AND B MODIFIED:
DIMENSIONS, WEIGHTS, AND OTHER CRITERIA SHOWN ON THESE
DETAILS ARE FOR CLASS 35B CAST IRON.
ADJUST CASTINGS FOR PRECAST INLETS TO GRADE WITH
COURSES OF BRICK, AS REQUIRED, 12 INCHES MAXIMUM.
GENERAL NOTES:
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