CATCH BASIN No. 3A

Top of
(Typ.)
curb
1" exp.
joint
Reinf. steel
per SCD BP-1.1
9" 9"
Cap
1
6" min.
bottom
Back of curb
Pavement blockout
for straight
Frame & grate
transverse slope
Curb casting
1’-0"
Permissible
constr. joint
1’-0"
3"
1" exp. joint
Drop gutter 2" in 20’ from each side of catch basin
for normal transverse slope, and " within blockout
for combined curb and gutter.
B
S6x12.5x3’-6"‘1"
B
SECTION A-A
B
12" min.
8" 2’-2"
8"
12"
X
C C
9"
1" Dowel
(Typ.)
B
2’-5"
D D
Combination curb
and gutter blockout
Outside of
conc. basin
The bottom may be
precast separately
and the outlet pipe
placed on top of it
with the bottom
shaped to drain.
Butt joint
PLAN OF CATCH BASIN AND PAVEMENT JOINTS
(For SECTIONS C-C and D-D, see Sht. 2/2)
12"
45
1
station and offset
Dowel location for
curb & gutter
Location of grate elevation,
1 "
1 "
Grate (Bicycle Safe
Shown)
Back of curb
Direction of
flow for grate
12"
1" exp.
joint
9"
(Typ.)
1" Dowel
as shown
9"
CATCH BASIN No. 3A
1
(Typ.)
Location of grate, elev.,
1" Dowel
station and offset
Normal pavement slope
Depressed pavement
Reinf. steel
per SCD BP-1.1
Permissible
constr. joint
Curb
2’-0" min.
Cap
1" exp.
joint
1’-0"
8"
Normal gutter
elevation
Depressed
gutter
A
face
Curb
1" 9"
S6x12.5x3’-6"‘1"
2’-3"
A
WITH CURB
8"
SECTION B-B
(2" DEPRESSION)
2’-0’ Gutter
1"
Curb
face
SECTION B-B
(" DEPRESSION)
9"
WITH CURB & GUTTER
8"
2"
11 "
3"
Top of curb and casting
2"
12" min.
Back of curb
Variable depth
LLocation
of grate,
elev., sta. and offset
"
4" or height of curb
as shown in the plans.
"
anchor bolt
NOTES
GRATES: Two required. For details, see SCD CB-2.2.
Provide Grate "V" unless the plans specifically require
the diagonal grate. If the diagonal grate is specified,
place it so that the diagonal bars direct drainage flow
toward the curb.
CASTINGS: Provide a design essentially the same and
equally as strong as the one shown. Minimum weight:
Curb Casting . . . . . 305 lbs.
Two Grates . . . . . . 254 lbs.
Frame . . . . . . . . . 590 lbs.
Two Grate "V" . . . . 210 lbs.
Lighter weight frames and grates that meet the re-
quirements of CMS 711.14 may also be provided. Provide
grate openings and dimensions as shown here unless
otherwise shown in the plans.
Cast the following text into the top of the curb
casting:
"DUMP NO WASTE" and "DRAINS TO WATERWAY"
Print text in bold, capital letters at least " high.
See example on Plan & Section. "WATERWAY" may be
substituted with "STREAM", "RIVER", "LAKE", etc. Actual
placement and logo may vary per manufacturer.
BEARING AREAS: Fit and finish the frame and grate to
provide a firm and even seat. No projections are
permitted on bearing areas, and the grate must seat in
its frame without rocking.
WALLS: When used in place of concrete, construct brick
side walls with 8" nominal thickness.
PRECAST CONSTRUCTION: Permitted, except for the
apron. Meet CMS 706.13 concrete requirements. Provide
precast walls at least 6" thick with sufficient
reinforcing to permit shipping and placement without
damage. Reduce the wall thickness from the outside.
MINIMUM DEPTH: The minimum depth is per the cover
requirements for that pipe type.
OPENINGS: Obtain the Engineer’s approval for any pipe
openings greater than 4" from the outside of the pipe
to the structure. Fill all voids per CMS 611.
DOWELS: Furnish four 1"x18" dowels for concrete
pavement or gutter blockout. See SCD BP-2.2 for
dowel details.
BLOCKOUT: Pave blockouts with 4000 psi compressive
strength concrete in PCC pavement or gutter. Blockouts
are paid for as part of the pavement or gutter with
no deduction in pavement, curb or gutter quantities
because of the castings. Cast a 4000 psi compressive
strength concrete apron, the size of the 2’-0" gutter
blockout, in place in asphalt pavement (no dowels
required) with the cost included in the catch basin
bid price. No deduction is made in curb quantities.
PAYMENT: All materials and labor, including excavation
and backfilling, are paid for under Item 611 - Catch
Basin, No. 3A.
STATE OF OHIO DEPARTMENT OF TRANSPORTATION
SCD NUMBER
REVISIONS
7-20-01
7-19-02
7-15-05
ROADWAY
HYDRAULIC
ENGINEER
O FFICE O F
STANDARD HYDRAULIC CONSTRUCTION DRAWING
C A TC H BA SIN No. 3A
C B-2.2
1 2
STATE HYDRAULIC ENGINEER
7-20-12
1-18-13
Cozzoli
Matt
ENGINEERING
HY D RA ULIC

5 "
7 "
1’-10 " 1 "
"
"
6"
(Typ.)
4" (Typ.)
2’-1"
3’-2"
PLAN
2’-6"
2’-1"
BACK VIEW
" (Typ.) 2’-6"
1" (Typ.)
1" rad. (Typ.)
3’-2"
FRAME
FRONT VIEW
1" (Typ.)
6" (Typ.)
3" (Typ.)
" (Typ.)
1" rad.
(Typ.)
3" (Typ.)
" rad.
(Typ.)
3" (Typ.)
4" (Typ.)
2"
1’-3"
9 " 5 "
1"
2"
1" (Typ.) 1" (Typ.)
2’-5"
Grate size
SECTION C-C
DIAGONAL GRATE
(See Sht. 1/2)
SECTION D-D
2’-5" x 1’-4" x 2"
DUMP NO WASTE DRAINS TO WATERWAY
Finished
FRONT VIEW
Finished
5
CURB CASTING CURB CASTING
60
7 "
SECTION Y-Y
(See Sht. 1/2.) Direction of flow for
grate as shown
"
1"
3" (Typ.) 1’-6" (Typ.)
3"
6"
1"
bolt hole
"
3’-6"
2"
"
3" rad.
"
"
" radii
all bar edges
Y Y
PLAN END VIEW FRAME
6" 2’-6"
6"
1" rad.
(Typ.)
3’-6"
"
"
"
6"
1’-6" (Typ.) 3" (Typ.)
rad.
1" rad.
1" rad.
" rad.
"
2" rad.
1" rad.
(internal)
2"
"
4"
2"
1’-4 "
"
1 "
9"
"
1"
rad.
"
1"
2"
END VIEW
10 bars @ 2" "
1" rad.
2’-0"
5"
2’-5"
PLAN
GRATE "V"
1’-6 "
1’-5"
1’-2 "
6"
2"
"
3"
1"
1 "
1"
1" rad.
1"
" rad.
4"
2" (Typ.)
5 "
1"
1 " 1 "
bolt hole
9" rad.
STATE OF OHIO DEPARTMENT OF TRANSPORTATION
SCD NUMBER
REVISIONS
7-20-01
7-19-02
7-15-05
ROADWAY
HYDRAULIC
ENGINEER
STANDARD HYDRAULIC CONSTRUCTION DRAWING
C A TC H BA SIN No. 3A
C B-2.2
2 2
STATE HYDRAULIC ENGINEER
7-20-12
1-18-13
O FFICE O F
Cozzoli
Matt
ENGINEERING
HY D RA ULIC