240916_40 ERW Stormwater Report FULL

NOAA 24-hr D 2-Year Rainfall=3.44"240913_40 ERW Waymaker Proposed Printed 9/16/2024Prepared by Colliers Engineering & Design Page 58HydroCAD® 10.20-2g s/n 04431 © 2022 HydroCAD Software Solutions LLC Summary for Pond 10P: (new Pond) Inflow Area = 0.718 ac, 9.34% Impervious, Inflow Depth = 1.13" for 2-Year event Inflow = 0.65 cfs @ 12.18 hrs, Volume= 0.068 af Outflow = 0.65 cfs @ 12.18 hrs, Volume= 0.068 af, Atten= 0%, Lag= 0.0 min Primary = 0.65 cfs @ 12.18 hrs, Volume= 0.068 af Routed to Reach DP1 : TOP Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Peak Elev= 0.29' @ 12.18 hrs Device Routing Invert Outlet Devices #1 Primary 0.00' 11.0" Vert. Orifice/Grate X 2.00 C= 0.600 Limited to weir flow at low heads Primary OutFlow Max=0.64 cfs @ 12.18 hrs HW=0.29' (Free Discharge) 1=Orifice/Grate (Orifice Controls 0.64 cfs @ 1.82 fps) Pond 10P: (new Pond) Inflow Primary Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Flow (cfs) 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=0.718 ac Peak Elev=0.29' 0.65 cfs 0.65 cfs This document was created by an application that isn’t licensed to use novaPDF. Purchase a license to generate PDF files without this notice.