U.S. FOUNDRY & MANUFACTURING CORPORATION
CATCH BASINS
CB-36
USF 4170 FRAME AND GRATE SERIES
29 3/4
6
28
26
29 3/4
1 1/8
1 1/2
4
28
35
29 3/4
12 7/8
28
35
29 3/4
1 3/16
1 1/2
4
28
35
RESTRICTED GRATE OPENINGS
USF 4170-6246
USF 4170-6245
GRATE LOAD FLOW
NUMBER RATING AREA
6245
HEAVY DUTY 375
6246
HEAVY DUTY 320
1.
Available with solid cover, USF 1625.
USF 4172 FRAME AND 6353 GRATE
USF 4171 FRAME AND 6249 GRATE
32
23 1/2
4 1/2
45 1/2
26 1/2
54
48 1/2
47 3/4
25 3/4
5
1 1/4
1 1/2
1 1/2
32
24
3/4
4 1/2
32
24
22 3/4
24
2
6 1/4
24
22 3/4
1.
Restricted grate openings.
2.
Concave grate.
SOUTH CAROLINA
DEPARTMENT OF HIGHWAY
24
X 24 DROP INLET
STANDARD
GRATE LOAD FLOW
NUMBER RATING AREA
6249
HEAVY DUTY 240
GRATE LOAD FLOW
NUMBER RATING AREA
6353
HEAVY DUTY 543