HomeMy WebLinkAbout242.10SIDE WITH WING WALLS
PLAN VIEW
Y
K
Example of a concrete sump flow
m
spreader used with a biofiltration swale
(may be used with other WQ facilities).
0
C�
CONCRETE SUMI`
OUTFALL RIPRAP
INLET PIPE
A A
SIDE WITH WING WALLS
Note:
1. Extend sides into slope. Height of
side wall and wing walls must be sufficient
to handle the 100 -year flow or the highest
flow entering the facility.
2. Concrete for sump box may be either cast -in-place or
pre -cast, but the bottom of the sump shall be reinforced with wire mesh for
cast -in-place sumps.
3. Sump boxes shall be placed over bases that consist of 4 inches of crushed rock,
% - inch minus to help assure the sump remain level.
ROCK
A
I Y � STD. PLAN - 242.10
+ + PUBLIC WORKS FLOW SPREADER OPTION B
�NTo� DEPARTMENT CONCRETE SUMP BOX
MARCH 2008
PLAN VIEW
NTS
ij
INLET PIPE WING WALL OUTLINE
2" MIN. CLEARANCE
C�
8" (MIN.) �i:/���\ VX�/���/�
CONCRETE SUMP
(4"WALL THICKNESS)
24" (MIN)
SECTION A -A
NTS
Note:
1. Extend sides into slope. Height of
side wall and wing walls must be sufficient
to handle the 100 -year flow or the highest
flow entering the facility.
2. Concrete for sump box may be either cast -in-place or
pre -cast, but the bottom of the sump shall be reinforced with wire mesh for
cast -in-place sumps.
3. Sump boxes shall be placed over bases that consist of 4 inches of crushed rock,
% - inch minus to help assure the sump remain level.
ROCK
A
I Y � STD. PLAN - 242.10
+ + PUBLIC WORKS FLOW SPREADER OPTION B
�NTo� DEPARTMENT CONCRETE SUMP BOX
MARCH 2008