14-020_TentPUD_StmDes_Completeness_2017-0614 Type IA 24-hr 10 yr Rainfall=4.46" <br />Prepared by Microsoft Printed 6/13/2017 <br />HydroCADO 10.00-16 s/n 09344 © 2015 HydroCAD Software Solutions LLC Page 10 <br />Primary OutFlow Max=0.09 cfs @ 9.38 hrs HW=885.52' TW=879.09' (Dynamic Tailwater) <br />L1=Culvert (Passes 0.09 cfs of 3.91 cfs potential flow) <br />~__3=Orif 2=Orif ice/Grate (Orifice Controls 0.09 cfs @ 11.55 fps) <br />ice/Grate ( Controls 0.00 cfs) <br />Summary for Pond S3: 816 FOR 10 YEAR <br />Inflow Area = 0.539 ac, 21.18% Impervious, Inflow Depth = 2.74" for 10 yr event <br />Inflow = 0.33 cfs @ 8.00 hrs, Volume= 0.123 of <br />Outflow = 0.12 cfs @ 9.15 hrs, Volume= 0.123 af, Atten= 64%, Lag= 69.0 min <br />Primary = 0.12 cfs @ 9.15 hrs, Volume= 0.123 of <br />Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs <br />Peak Elev= 880.13' @ 9.16 hrs Surf.Area= 134 sf Storage= 806 cf <br />Plug-Flow detention time= 87.0 min calculated for 0.123 of (100% of inflow) <br />Center-of-Mass det. time= 87.0 min ( 840.2 - 753.2) <br />Volume Invert Avail.Storage Storage Description <br />#1 874.12' 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 />874.12 134 0 0 <br />880.62 134 871 871 <br />Device Routing Invert Outlet Devices <br />#1 Primary 874.12' 8.0" Round Culvert <br />L= 45.0' CMP, square edge headwall, Ke= 0.500 <br />Inlet / Outlet Invert= 874.12'/ 873.22' S= 0.02007' Cc= 0.900 <br />n= 0.010 PVC, smooth interior, Flow Area= 0.35 sf <br />#2 Device 1 874.12' 1.4" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />#3 Device 1 880.12' 8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />Primary OutFlow Max=0.12 cfs @ 9.15 hrs HW=880.13' TW=875.79' (Dynamic Tailwater) <br />L1=Culvert (Passes 0.12 cfs of 3.41 cfs potential flow) <br />~2=Orif i ce/G rate (Orifice Controls 0.11 cfs @ 10.04 fps) <br />3=Orifice/Grate (Weir Controls 0.01 cfs @ 0.39 fps) <br />Summary for Pond S4: 816 FOR 10 YEAR <br />Inflow Area = 0.277 ac, 38.64% Impervious, Inflow Depth = 3.07" for 10 yr event <br />Inflow = 0.20 cfs @ 7.96 hrs, Volume= 0.071 of <br />Outflow = 0.05 cfs @ 10.26 hrs, Volume= 0.071 af, Atten= 75%, Lag= 138.1 min <br />Primary = 0.05 cfs @ 10.26 hrs, Volume= 0.071 of <br />Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs <br />Peak Elev= 885.40' @ 10.26 hrs Surf.Area= 134 sf Storage= 719 cf <br />Plug-Flow detention time= 187.2 min calculated for 0.071 of (100% of inflow) <br />