240916_40 ERW Stormwater Report FULL

NOAA 24-hr D 100-Year Rainfall=8.66"240913_40 ERW Waymaker Proposed Printed 9/16/2024Prepared by Colliers Engineering & Design Page 188HydroCAD® 10.20-2g s/n 04431 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2P: Pervious Pavers Inflow Area = 0.152 ac, 0.00% Impervious, Inflow Depth = 7.34" for 100-Year event Inflow = 1.16 cfs @ 12.13 hrs, Volume= 0.093 af Outflow = 0.08 cfs @ 13.45 hrs, Volume= 0.093 af, Atten= 93%, Lag= 79.5 min Discarded = 0.08 cfs @ 13.45 hrs, Volume= 0.093 af Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Peak Elev= 625.03' @ 13.45 hrs Surf.Area= 0.151 ac Storage= 0.037 af Plug-Flow detention time= 154.7 min calculated for 0.093 af (100% of inflow) Center-of-Mass det. time= 154.6 min ( 935.3 - 780.7 ) Volume Invert Avail.Storage Storage Description #1 624.42' 0.061 af 65.91'W x 100.00'L x 1.00'H Prismatoid 0.151 af Overall x 40.0% Voids Device Routing Invert Outlet Devices #1 Discarded 624.42' 0.500 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 619.00' Discarded OutFlow Max=0.08 cfs @ 13.45 hrs HW=625.03' (Free Discharge) 1=Exfiltration ( Controls 0.08 cfs) Pond 2P: Pervious Pavers Inflow Discarded Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Flow (cfs) 1 0 Inflow Area=0.152 ac Peak Elev=625.03' Storage=0.037 af 1.16 cfs 0.08 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.