POST DEV NOAA 24-hr D 100 YEAR Rainfall=9.48" Prepared by Professional Design Services Printed 12/31/2025 HydroCAD® 10.20-6a s/n 02223 © 2024 HydroCAD Software Solutions LLC Page 81
Summary for Subcatchment 10S: BY-PASS POROUS
[49] Hint: Tc<2dt may require smaller dt
Runoff = 0.12 cfs @ 12.10 hrs, Volume= 0.008 af, Depth> 1.59" Routed to Reach 10 : COMPOSITE
Runoff by SCS TR-20 method, UH=Delmarva, Weighted-CN, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs NOAA 24-hr D 100 YEAR Rainfall=9.48"
Area (ac)CNDescription
0.06039>75% Grass cover, Good, HSG A
0.060100.00% Pervious Area
Tc (min)Length (feet)Slope (ft/ft) Velocity (ft/sec) Capacity (cfs)
2.0Direct Entry,
Subcatchment 10S: BY-PASS POROUS