14-020_TentPUD_StmDes Type IA 24-hr WQ Rainfall=1.40" <br />Prepared by Microsoft Printed 2/18/2017 <br />HydroCADOO 10.00-16 s/n 09344 @2015 HydroCAD Software Solutions LLC Page 22 <br />Primary OutFlow Max=0.02 cfs @ 8.22 hrs HW=874.80' TW=874.10' (Dynamic Tailwater) <br />'t--1 =Culvert (Passes 0.02 cfs of 0.25 cfs potential flow) <br />1:3=0rif 2=Orif ice/Grate (Orifice Controls 0.02 cfs @ 2.55 fps) <br />ice/Grate ( Controls 0.00 cfs) <br />Summary for Pond S6: 816 FOR 10 YEAR <br />Inflow Area = 1.774 ac, 23.90% Impervious, Inflow Depth > 0.45" for WO event <br />Inflow = 0.08 cfs @ 8.23 hrs, Volume= 0.066 of <br />Outflow = 0.08 cfs @ 8.59 hrs, Volume= 0.066 af, Atten= 5%, Lag= 21.3 min <br />Primary = 0.04 cfs @ 8.59 hrs, Volume= 0.033 of <br />Secondary = 0.04 cfs @ 8.59 hrs, Volume= 0.033 of <br />Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs <br />Peak Elev= 871.13'@ 8.59 hrs Surf.Area= 134 sf Storage= 44 cf <br />Plug-Flow detention time= 5.9 min calculated for 0.066 of (100% of inflow) <br />Center-of-Mass det. time= 5.9 min ( 822.8 - 816.9 ) <br />Volume Invert Avail.Storage Storage Description <br />#1 870.80' 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 />870.80 134 0 0 <br />877.30 134 871 871 <br />Device Routing Invert Outlet Devices <br />#1 Primary 870.80' 8.0" Round Culvert <br />L= 20.0' CMP, square edge headwall, Ke= 0.500 <br />Inlet/ Outlet Invert= 870.80'/ 870.40' S=0.0200'/' Cc= 0.900 <br />n= 0.010 PVC, smooth interior, Flow Area= 0.35 sf <br />#2 Secondary 870.80' 8.0" Round Culvert <br />L= 20.0' CMP, square edge headwall, Ke= 0.500 <br />Inlet/ Outlet Invert= 870.80'/ 870.40' S=0.0200'/' Cc= 0.900 <br />n= 0.010 PVC, smooth interior, Flow Area= 0.35 sf <br />#3 Device 1 870.80' 1.6" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />#4 Device 2 870.80' 1.6" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />#5 Device 1 876.80' 8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />#6 Device 2 876.80' 8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />Primary OutFlow Max=0.04 cfs @ 8.59 hrs HW=871.13' TW=800.01' (Dynamic Tailwater) <br />L7=Culvert (Passes 0.04 cfs of 0.33 cfs potential flow) <br />Orifice/Grate (Orifice Controls 0.04 cfs @ 2.75 fps) <br />3=Orifice/Grate ( Controls 0.00 cfs) <br />§condary OutFlow Max=0.04 cfs @ 8.59 hrs HW=871.13' TW=800.01' (Dynamic Tailwater) <br />2=Culvert (Passes 0.04 cfs of 0.33 cfs potential flow) <br />Orifice/Grate (Orifice Controls 0.04 cfs @ 2.75 fps) <br />ItOrif ice/G rate ( Controls 0.00 cfs) <br />