RESUB 3-Storm Drainage SystemSTANDARD. DRAINAGE DETENTION SYST
WORKSHEET
OWNER -��i ! /1fY c. "? rn �!� 11 CALC BY: Pno
ADDRESS I a E,_ r r S.W, PHONE:1,1,t <-, j �.' ;
S
DATE:
*****DESIGN DATA*****
IMPERVIOUS AREA PIPE DIA PIPE LG
DETENTION PIPE LENGTH
WASHED
zOUTFL
TOP
RIM ELEV +�'^ 1'MIN COVER O'MIN SAKE '
2'MA%COVER RIM ELEV3fi9_s CONTROL
Y L OUTLET
•.ram � �s✓ -
4'0 MIN 4'PEI
.5%-r'. SLOPE 9' 0 RPE MIN. f f
ORIFICE, RUNOFF SPREAI
INV ELE F0. 3� 7 OUTLET
6PmR CATCN INV ELEV_
BASIN CONrBOL CATCH
BASIN
SYSTEM CROSS SECTION
FROM CONTROL
OUTLET
RIPRAP OUTL
-try C
FOOTING DRAINS SHALL NOT BE CONNECTED TD DETENTI1
NOTES.
1. Call Engineering Division (771-0220) for a tightline and detention system inspection
before backfilling and for final inspections.
2, Responsibility for operation and maintenance of drainage systems on private property is the
responsibility of the property owner. Material accumulated in the storage pipe must be flushed
out and removed from the catch basins to allow proper operation. The outlet control orifice
must be kept open at all limes.
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