Summary for Subcatchment 124S: DA E3 (Impervious)

Runoff = 0.82 cfs @ 12.10 hrs, Volume= 2,718 cf, Depth= 3.19" Routed to Link 141L : POA

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-Year Rainfall=3.42"

Area (ac) CN Description

0.192 98 Unconnected pavement, HSG A

0.043 98 Paved parking, HSG A

0.235 98 Weighted Average

0.192 98 81.70% Pervious Area

0.043 98 18.30% Impervious Area

Tc (min) Length (feet) Slope (ft/ft) Velocity (ft/sec) Capacity (cfs) Description

1.2 100 0.0200 1.42 Sheet Flow,

0.4 95 0.0475 4.42 Smooth surfaces n= 0.011 P2= 3.42"

Paved Kv= 20.3 fps

1.6 195 Total

Shallow Concentrated Flow,

1.6 105 Total

Subcatchment 124S: DA E3 (Impervious)