Drainage Report and Supplement 82625

2025-08-13_Stormwater Calculations NOAA 24-hr D 100-Year-2050 Rainfall=11.52", P2=4.09" Prepared by Stonefield Engineering & Design HydroCAD® 10.20-5c s/n 10626 © 2023 HydroCAD Software Solutions LLC Printed 8/13/2025 Page 49 Subcatchment E-1: Existing Drainage to Woodland Avenue Hydrograph 9 Runoff 8.16 cfs 8 7 Flow (cfs) 6 5 4 3 NOAA 24-hr D 100-Year-2050 Rainfall=11.52" P2=4.09" Runoff Area=32,101 sf Runoff Volume=25,611 cf Runoff Depth=9.57" Flow Length=147' Tc=2.5 min CN=74/98 2 1 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Time (hours)