2022 08 Drainage Report

2022-07-21 Existing Hydrology 2022-07-21 Existing Hydrology Prepared by Dynamic Engineering Printed 9/5/2022 Prepared by Dynamic Engineering Printed 8/5/2022 HydroCAD® 10.20-2d s/n 08640 © 2021 HydroCAD Software Solutions LLC HydroCAD® 10.20-2d_s/n 08640 © 2021 HydroCAD Software Solutions LLC Page 4 Rainfall Events Listing (selected events) Area Listing (all nodes) Eventt Event Storm Type Curve Mode Duration BIB Depth AMC Area CN Description Name (hours) (inches) (acres) (subcatchment-numbers) 1 2Year NOAA2¢hr D Default 24.00 1 344 2 0.017 74 >75% Grass cover, Good, HSG C (38) 2 10-Year NOAA24hr D Default 24.001 622 2 0.008 98_-—_Unconnected pavement, HSG B (1S) 3 100-Year NOAA24hr D Default 24.00 1 866 2 0.054 98 —_Unconnected pavement, HSG C (18) 3.576 70 — Woods, Good, HSG C (38) 0.054 77 ~~ Woods, Good, HSG D (3S) 3709 71 « TOTALAREA