Runoff = 0.70 cfs @ 12.12 hrs, Volume= Routed to Pond 15P : PERVIOUS PAVEMENT 3B 2,762 cf, Depth= 3.81"
2,762 cf, Depth= 3.81"
Runoff by SCS TR-20 method, UH=Delmarva, Split Pervious/Imperv. UI as Pervious, Time Span= 0.00-72.00 hrs, dt= NOAA 24-hr D 2 YR-F Rainfall=4.04"
Area (ac) CN Description
0.200 98 Paved parking, HSG A
0.200 98 100.00% Impervious Area
Tc (min) Length (feet) Slope (ft/ft) Velocity (ft/sec) Capacity (cfs) Description
3.6 37 0.0300 0.17 Sheet Flow, Grass: Short n= 0.150 P2= 3.42" Shallow Concentrated Flow, Paved Kv= 20.3 fps
0.7 118 0.0200 2.87
4.3 155 Total
Subcatchment 6S: DA-P3 IMPERVIOUS