14-020_TentPUD_Completeness_2017-0807_PostDev Type IA 24-hr 10 yr Rainfall=4.46" <br />Prepared by Microsoft Printed 8/11/2017 <br />HydroCADO 10.00-16 s/n 09344 © 2015 HydroCAD Software Solutions LLC Page 19 <br />Elevation Surf.Area Inc.Store Cum.Store <br />(feet) (sq-ft) (cubic-feet) (cubic-feet) <br />892.25 32 0 0 <br />897.35 32 163 163 <br />Device Routing Invert Outlet Devices <br />#1 Primary 892.25' 8.0" Round Culvert <br />L= 20.0' CMP, square edge headwall, Ke= 0.500 <br />Inlet / Outlet Invert= 892.25'/ 892.15' S= 0.00507' Cc= 0.900 <br />n= 0.010 PVC, smooth interior, Flow Area= 0.35 sf <br />#2 Device 1 892.25' 1.1" Horiz. Orifice/Grate C=0.600 Limited to weir flow at low heads <br />#3 Device 1 897.05' 8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />Primary OutFlow Max=0.07 cfs @ 8.23 hrs HW=897.01' TW=890.72' (Dynamic Tailwater) <br />L1=Culvert (Passes 0.07 cfs of 3.54 cfs potential flow) <br />~2=Orif i ce/G rate (Orifice Controls 0.07 cfs @ 10.51 fps) <br />3=Orifice/Grate ( Controls 0.00 cfs) <br />Summary for Pond S8: 816 FOR 10 YEAR <br />Inflow Area = 0.382 ac, 17.86% Impervious, Inflow Depth = 2.75" for 10 yr event <br />Inflow = 0.25 cfs @ 7.95 hrs, Volume= 0.087 of <br />Outflow = 0.07 cfs @ 9.92 hrs, Volume= 0.087 af, Atten= 73%, Lag= 118.5 min <br />Primary = 0.07 cfs @ 9.92 hrs, Volume= 0.087 of <br />Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs <br />Peak Elev= 902.12' @ 9.92 hrs Surf.Area= 134 sf Storage= 805 cf <br />Plug-Flow detention time= 161.5 min calculated for 0.087 of (100% of inflow) <br />Center-of-Mass det. time= 161.5 min ( 913.6 - 752.0 ) <br />Volume Invert Avail.Storage Storage Description <br />#1 896.11' 871 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 />896.11 134 0 0 <br />902.61 134 871 871 <br />Device Routing Invert Outlet Devices <br />#1 Primary 896.11' 8.0" Round Culvert <br />L= 20.0' CMP, square edge headwall, Ke= 0.500 <br />Inlet / Outlet Invert= 896.11'/ 895.71' S= 0.02007' Cc= 0.900 <br />n= 0.010 PVC, smooth interior, Flow Area= 0.35 sf <br />#2 Device 1 896.11' 1.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />#3 Device 1 902.11' 8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />Primary OutFlow Max=0.07 cfs @ 9.92 hrs HW=902.12' TW=892.50' (Dynamic Tailwater) <br />L1=Culvert (Passes 0.07 cfs of 4.00 cfs potential flow) <br />~2=Orif i ce/G rate (Orifice Controls 0.06 cfs @ 11.80 fps) <br />3=Orifice/Grate (Weir Controls 0.00 cfs @ 0.27 fps) <br />