Runoff = 3.51 cfs @ 12.11 hrs, Volume= Routed to Link 11L : Offsite 0.249 af, Depth= 5.24"
0.249 af, Depth= 5.24"
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 100 YR-C Rainfall=8.95"
Area (ac) CN Description
0.040 55 Woods, Good, HSG B
0.110 96 Gravel surface, HSG B
0.390 61 >75% Grass cover, Good, HSG B
0.030 98 Roofs, HSG B
0.570 69 Weighted Average
0.540 68 94.74% Pervious Area
0.030 98 5.26% Impervious Area
Tc (min) Length (feet) Slope (ft/ft) Velocity (ft/sec) Capacity (cfs) Description
2.2 376 0.0200 2.87 Shallow Concentrated Flow, Paved Kv= 20.3 fps
2.7 421 Total
0.5 45 0.0300 1.43 Sheet Flow, Smooth surfaces n= 0.011 P2= 3.42"
Subcatchment 12S: DA-E2A