Drainage Report and Supplement 82625

2025-08-13_Stormwater Calculations NOAA 24-hr D 100-Year-2020 Rainfall=9.18", P2=3.47" Prepared by Stonefield Engineering & Design HydroCAD® 10.20-5c s/n 10626 © 2023 HydroCAD Software Solutions LLC Printed 8/13/2025 Page 22 Subcatchment E-1: Existing Drainage to Woodland Avenue Hydrograph 7 Runoff 6.29 cfs 6 Flow (cfs) 5 4 3 2 NOAA 24-hr D 100-Year-2020 Rainfall=9.18" P2=3.47" Runoff Area=32,101 sf Runoff Volume=19,599 cf Runoff Depth=7.33" Flow Length=147' Tc=2.6 min CN=74/98 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)