SW6240804_Design Calculations_20241015 (12)

DRAKE LANDING SUBDIVISION
WET POND#1
Drainage Area: 1,865,654 sf
42.83 ac
Impervious Area: 948,610 sf
21.78 ac
%Impervious: 50.8%
1 inch Storm Event:
Rv=0.05+0.009 I
Rv=runoff coefficient
I=percent impervious
Rv= 0.5076
For volume that must be controlled:
Volume=3,630*Rd*Rv*A
Volume required: 78,919 cf
Volume provided: 117152 cf
Average depth: 3 ft
SA/DA ratio 1.8153793
Required surface area: 33869 sf
Surface area provided: 45664 sf