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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Bid Abstract 2022 08 09.pdf PDF
W912DS22B0003 Amendment 0012.pdf PDF
S-004.pdf PDF
Note to Bidders.pdf PDF
S-510.pdf PDF
C-101G.pdf PDF
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Amendment 0005 Plans and Specs.pdf PDF
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Text version

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:

File details come from the government source that posted it. Updated .