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 178HydroCAD® 10.20-2g s/n 04431 © 2022 HydroCAD Software Solutions LLC Summary for Reach DP1: TOP Inflow Area = 0.718 ac, 9.34% Impervious, Inflow Depth = 4.62" for 100-Year event Inflow = 2.88 cfs @ 12.18 hrs, Volume= 0.276 af Outflow = 2.87 cfs @ 12.18 hrs, Volume= 0.276 af, Atten= 0%, Lag= 0.2 min Routed to Reach DP2 : CHANNEL Routing by Stor-Ind+Trans method, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs Max. Velocity= 11.24 fps, Min. Travel Time= 0.1 min Avg. Velocity = 3.76 fps, Avg. Travel Time= 0.4 min Peak Storage= 25 cf @ 12.18 hrs Average Depth at Peak Storage= 0.21' , Surface Width= 1.81' Bank-Full Depth= 1.83' Flow Area= 4.1 sf, Capacity= 118.41 cfs 34.0" W x 22.0" H, R=24.9" Elliptical Pipe n= 0.011 Concrete pipe, straight & clean Length= 100.0' Slope= 0.1000 '/' Inlet Invert= 0.00', Outlet Invert= -10.00' Reach DP1: TOP Inflow Outflow Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Flow (cfs) 3 2 1 0 Inflow Area=0.718 ac Avg. Flow Depth=0.21' Max Vel=11.24 fps 34.0" x 22.0" R=24.9" Elliptical Pipe n=0.011 L=100.0' S=0.1000 '/' Capacity=118.41 cfs 2.88 cfs 2.87 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.