complete drainage report rev 9

Existing Conditions NOAA 24-hr D 100-Year Rainfall=8.66" 2024-04-20 HydroCAD - Existing Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 38 Subcatchment 4S: DA 2 - Perv Hydrograph 80 Runoff 72.79 cfs 75 NOAA 24-hr D 100-Year Rainfall=8.66" Runoff Area=722,186 sf Runoff Volume=324,925 cf Runoff Depth=5.40" Flow Length=664' Tc=16.8 min CN=73 70 65 60 55 Flow (cfs) 50 45 40 35 30 25 20 15 10 5 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)