241220_42 ERW_Stormwater Report FULL

NOAA 24-hr D 25-Year Rainfall=6.44"241220_42 ERW Waymaker Printed 12/20/2024Prepared by Colliers Engineering & Design Page 35HydroCAD® 10.20-5c s/n 04431 © 2023 HydroCAD Software Solutions LLC Pond BASIN: - Chamber Wizard Field A Chamber Model = ADS_StormTech MC-3500 d +Cap (ADS StormTech® MC-3500 d rev 03/14 with Cap volume) Effective Size= 70.4"W x 45.0"H => 15.33 sf x 7.17'L = 110.0 cf Overall Size= 77.0"W x 45.0"H x 7.50'L with 0.33' Overlap Cap Storage= 14.9 cf x 2 x 5 rows = 149.0 cf 77.0" Wide + 9.0" Spacing = 86.0" C-C Row Spacing 19 Chambers/Row x 7.17' Long +1.85' Cap Length x 2 = 139.93' Row Length +12.0" End Stone x 2 = 141.93' Base Length 5 Rows x 77.0" Wide + 9.0" Spacing x 4 + 18.0" Side Stone x 2 = 38.08' Base Width 9.0" Stone Base + 45.0" Chamber Height + 12.0" Stone Cover = 5.50' Field Height 95 Chambers x 110.0 cf + 14.9 cf Cap Volume x 2 x 5 Rows = 10,594.4 cf Chamber Storage 29,728.4 cf Field - 10,594.4 cf Chambers = 19,134.0 cf Stone x 40.0% Voids = 7,653.6 cf Stone Storage Chamber Storage + Stone Storage = 18,248.0 cf = 0.419 af Overall Storage Efficiency = 61.4% Overall System Size = 141.93' x 38.08' x 5.50' 95 Chambers 1,101.1 cy Field 708.7 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.