241018_42 ERW_Stormwater Report_compiled

NOAA 24-hr D 100-Year Rainfall=8.66"240924_42 ERW Waymaker Printed 10/17/2024Prepared by Colliers Engineering & Design Page 56HydroCAD® 10.20-4b s/n 04431 © 2023 HydroCAD Software Solutions LLC Pond Basin 2: (new Pond) - Chamber Wizard Field A Chamber Model = ADS_StormTech SC-740 +Cap (ADS StormTech® SC-740 with cap length) Effective Size= 44.6"W x 30.0"H => 6.45 sf x 7.12'L = 45.9 cf Overall Size= 51.0"W x 30.0"H x 7.56'L with 0.44' Overlap 51.0" Wide + 6.0" Spacing = 57.0" C-C Row Spacing 5 Chambers/Row x 7.12' Long +0.81' Cap Length x 2 = 37.22' Row Length +12.0" End Stone x 2 = 39.22' Base Length 7 Rows x 51.0" Wide + 6.0" Spacing x 6 + 12.0" Side Stone x 2 = 34.75' Base Width 6.0" Stone Base + 30.0" Chamber Height + 6.0" Stone Cover = 3.50' Field Height 35 Chambers x 45.9 cf = 1,607.9 cf Chamber Storage 4,769.7 cf Field - 1,607.9 cf Chambers = 3,161.8 cf Stone x 40.0% Voids = 1,264.7 cf Stone Storage Chamber Storage + Stone Storage = 2,872.6 cf = 0.066 af Overall Storage Efficiency = 60.2% Overall System Size = 39.22' x 34.75' x 3.50' 35 Chambers 176.7 cy Field 117.1 cy Stone This document was created by an application that isn’t licensed to use novaPDF. Purchase a license to generate PDF files without this notice.