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 13 <br />Inflow Area = <br />0.384 ac, <br />Inflow = <br />0.23 cfs @ <br />Outflow = <br />0.19 cfs @ <br />Primary = <br />0.19 cfs @ <br />Summary for Pond S1: 776 FOR 10 YEAR <br />49.70% Impervious, Inflow Depth = 3.28" <br />8.01 hrs, Volume= 0.105 of <br />8.33 hrs, Volume= 0.105 af, <br />8.33 hrs, Volume= 0.105 of <br />Atten= 14%, Lag= 19.1 min <br />for 10 yr event <br />Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs <br />Peak Elev= 883.36' @ 8.33 hrs Surf.Area= 32 sf Storage= 111 cf <br />Plug-Flow detention time= (not calculated: outflow precedes inflow) <br />Center-of-Mass det. time= 1.8 min ( 730.6 - 728.8 ) <br />Volume Invert Avail.Storage Storage Description <br />#1 879.90' 130 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 />879.90 32 0 0 <br />883.95 32 130 130 <br />Device Routing Invert Outlet Devices <br />#1 Primary 879.15' 8.0" Round Culvert <br />L= 20.0' CMP, square edge headwall, Ke= 0.500 <br />Inlet / Outlet Invert= 879.15'/ 878.75' S= 0.02007' Cc= 0.900 <br />n= 0.010 PVC, smooth interior, Flow Area= 0.35 sf <br />#2 Device 1 879.15' 1.9" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />#3 Device 1 883.65' 8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />Primary OutFlow Max=0.19 cfs @ 8.33 hrs HW=883.36' TW=878.24' (Dynamic Tailwater) <br />L1=Culvert (Passes 0.19 cfs of 3.31 cfs potential flow) <br />~2=Orif i ce/G rate (Orifice Controls 0.19 cfs @ 9.88 fps) <br />3=Orifice/Grate ( Controls 0.00 cfs) <br />Summary for Pond S10: 24" Detention <br />Inflow Area = <br />1.109 ac, <br />28.89% Impervious, <br />Inflow Depth = 2.91" for 10 yr event <br />Inflow = <br />0.38 cfs @ <br />8.00 hrs, Volume <br />= 0.269 of <br />Outflow = <br />0.19 cfs @ <br />11.06 hrs, Volume <br />= 0.269 af, Atten= 50%, Lag= 183.4 min <br />Primary = <br />0.19 cfs @ <br />11.06 hrs, Volume <br />= 0.269 of <br />Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs <br />Peak Elev= 888.01' @ 11.06 hrs Surf.Area= 587 sf Storage= 1,002 cf <br />Plug-Flow detention time= 64.1 min calculated for 0.269 of (100% of inflow) <br />Center-of-Mass det. time= 64.1 min ( 897.0 - 832.9) <br />Volume Invert Avail.Storage Storage Description <br />#1 886.40' 1,162 cf 24.0" Round Pipe Storage <br />L= 370.0' <br />