SW6220101_Design Calculations (Wet Pond)_20221013

Woodshire Subdivision Phase 7
Wet Pond
Drainage Area: 851,773 sf
19.55 ac
Impervious Area: 402,748 sf
9.25 ac
% Impervious: 47.3%
1 inch Storm Event:
Rv = 0.05+0.009 I
Rv = runoff coefficient
I= percent impervious
Rv= 0.4756
For volume that must be controlled:
Volume=3,630*Rd*Rv*A
Volume required: 33,755 cf
Volume provided: 69,983 cf
Forebay vol : cf
Average depth: 3 It
SA/DA ratio 1.71
Required surface area: 0.3344 ac
14565 sf
Surface area provided: 9,632 sf