Laserfiche WebLink
T:\0742\1406\June11 CityApp\Surface Water\ <br />ER Landfill 06_2011 Type 11 24-hr 25 yr Rainfall=4.70" <br />Prepared by Wenck Associates, Inc. Printed 8/2/2011 <br />HydroCAD® 9.10 s/n 02201 ©2010 HydroCAD Software Solutions LLC Page 37 <br />Summary for Pond P-1: P-1 <br />Inflow Area = 37.302 ac, 0.00% Impervious, Inflow Depth = 1.61" for 25 yr event <br />Inflow = 76.98 cfs @ 12.00 hrs, Volume= 5.015 of <br />Outflow = 1.70 cfs @ 18.80 hrs, Volume= 2.112 af, Atten= 98°~, Lag= 407.7 min <br />Primary = 1.70 cfs @ 18.80 hrs, Volume= 2.112 of <br />Routing by Stor-Ind method, Time Span= 0.00-96.00 hrs, dt= 0.02 hrs <br />Peak Elev= 993.63' @ 18.80 hrs Surf.Area= 34,965 sf Storage= 147,376 cf <br />Plug-Flow detention time= 807.7 min calculated for 2.112 of (42% of inflow) <br />Center-of--Mass det. time= 579.9 min (.1,516.0 - 936.1 ) <br />Volume Invert Avail.Storage Storage Description <br />#1 986.00' 454,086 cf Custom Stage Data (Prismatic)Listed below. (Recalc) <br />Elevation Surf.Area Inc.Store Cum.Store <br />(feet) (sq-ft) (cubic-feet) (cubic-feet) <br />986.00 0 0 0 <br />988.00 13, 052 13, 052 13, 052 <br />990.00 20,600 33,652 46,704 <br />992.00 28,383 48,983 95,687 <br />994.00 36,449 64,832 160,519 <br />996.00 44,713 81,162 241,681 <br />998.00 53,288 98,001 339,682 <br />1, 000.00 61,116 114,404 454,086 <br />Device Routing Invert Outlet Devices <br />#1 Primary 993.00' 18.0" Round Culvert <br />L= 1,550.0' CPP, mitered to conform to fill, Ke= 0.700 <br />Inlet /Outlet Invert= 993.00' / 957.00' S= 0.0232 'P Cc= 0.900 <br />n= 0.013 Corrugated PE, smooth interior <br />Primary OutFlow Max=1.69 cfs @ 18.80 hrs HW=993.63' (Free Discharge) <br />L1=Culvert (Inlet Controls 1.69 cfs @ 2.39 fps) <br />