102 Sams -REV 12-02-25 NOAA 24-hr D 25-Year Rainfall=6.68" Prepared by Haler Consulting Printed 04/12/2025 HydroCAD® 10.20-2h s/n 10351 © 2024 HydroCAD Software Solutions LLC Page 39
Summary for Subcatchment 179S: DA P0 Pervious
Runoff = 0.28 cfs @ 14.71 hrs, Volume= Routed to Link 185L : POA 8,387 cf, Depth= 0.30"
8,387 cf, Depth= 0.30"
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 25-Year Rainfall=6.68"
Area (sf)CNDescription
236,87930Woods, Good, HSG A
99,37139>75% Grass cover, Good, HSG A
336,25033Weighted Average
336,25033100.00% Pervious Area
Tc (min)Length (feet)Slope (ft/ft) Velocity (ft/sec) Capacity (cfs)
36.21000.0050 0.05
13.65790.0200 0.71
49.8679Total
Subcatchment 179S: DA P0 Pervious