241220_42 ERW_Stormwater Report FULL

NJ DEP 2-hr WQ Rainfall=1.25"240924_42 ERW Waymaker Printed 10/17/2024Prepared by Colliers Engineering & Design Page 27HydroCAD® 10.20-4b s/n 04431 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment EDA-1 (PERV): Runoff = 0.28 cfs @ 1.32 hrs, Volume= 0.014 af, Depth= 0.07" Routed to Reach DP1-EX : Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs NJ DEP 2-hr WQ Rainfall=1.25" Area (sf) CN Description 102,351 74 >75% Grass cover, Good, HSG C 102,351 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.9 100 0.0140 0.15 Sheet Flow, Grass: Short n= 0.150 P2= 3.44" 2.2 401 0.0350 3.01 Shallow Concentrated Flow, Unpaved Kv= 16.1 fps 13.1 501 Total Subcatchment EDA-1 (PERV): Runoff Hydrograph Time (hours) 727068666462605856545250484644424038363432302826242220181614121086420 Flow (cfs) 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=102,351 sf Runoff Volume=0.014 af Runoff Depth=0.07" Flow Length=501' Tc=13.1 min CN=74 0.28 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.