Type MC Manhole
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| STRUCTURE
NAME |
Type
MC Manhole |
| STRUCTURE
CATEGORY |
Stormwater |
| |
|
| SPECIFICATIONS |
|
source
|
DM
Urban Standard |
concrete
|
4000
psi |
reinforcing
|
DM
Urban Standard |
| |
|
| DESCRIPTION |
|
inside
dimension
|
pipe size inside
diameter (inches) |
minimum inside
dimension (inches) |
84 |
124 |
78 |
117 |
72 |
110 |
66 |
103 |
60 |
96 |
54 |
89 |
48 |
82 |
42 |
75 |
36 |
68 |
30 |
61 |
24 |
54 |
18 |
47 |
15 |
44 |
12 or less |
40 |
none |
40 |
|
wall
thickness
|
8" |
lid
thickness
|
10" |
| |
|
| STRUCTURE
COMPONENTS |
|
a.
|
Manhole casting
and cover |
b.
|
Adjustment rings:
2-4-6" |
c.
|
Lid |
d.
|
Base section
with floor & pipe openings |
|
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