48" Type MA Manhole

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| STRUCTURE
NAME |
48" Type
MA Manhole |
| STRUCTURE
CATEGORY |
Stormwater |
| |
|
| SPECIFICATIONS |
|
source
|
DM
Urban Standard |
concrete
|
4000
psi |
reinforcing
|
DM
Urban Standard |
| |
|
| DESCRIPTION |
|
inside
dimension
|
48" |
wall
thickness
|
5" |
weight
(per vert. foot)
|
1000
pounds |
| |
|
| STRUCTURE
COMPONENTS |
|
a.
|
Manhole casting
and cover |
b.
|
Adjustment rings:
2-4-6" |
c.
|
Flat top lid:
4-6-8" |
d.
|
Base section
with pipe openings |
e.
|
Cast-in-place
slab |
|
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