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 17 <br />Inflow Area = <br />0.500 ac, <br />Inflow = <br />0.31 cfs @ <br />Outflow = <br />0.12 cfs @ <br />Primary = <br />0.12 cfs @ <br />Summary for Pond S5: 816 FOR 10 YEAR <br />22.90% Impervious, Inflow Depth = 2.77" <br />8.00 hrs, Volume= 0.116 of <br />9.02 hrs, Volume= 0.116 af, <br />9.02 hrs, Volume= 0.116 of <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= 880.54' @ 9.03 hrs Surf.Area= 134 sf Storage= 807 cf <br />Plug-Flow detention time= 97.2 min calculated for 0.116 of (100% of inflow) <br />Center-of-Mass det. time= 97.2 min ( 847.2 - 750.0) <br />Volume Invert Avail.Storage Storage Description <br />#1 874.52' 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 />874.52 134 0 0 <br />881.02 134 871 871 <br />Device Routing Invert Outlet Devices <br />#1 Primary 874.52' 8.0" Round Culvert <br />L= 20.0' CMP, square edge headwall, Ke= 0.500 <br />Inlet / Outlet Invert= 874.52'/ 874.12' S= 0.02007' Cc= 0.900 <br />n= 0.010 PVC, smooth interior, Flow Area= 0.35 sf <br />#2 Device 1 874.52' 1.3" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />#3 Device 1 880.52' 8.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads <br />Primary OutFlow Max=0.12 cfs @ 9.02 hrs HW=880.54' TW=875.53' (Dynamic Tailwater) <br />L1=Culvert (Passes 0.12 cfs of 3.76 cfs potential flow) <br />~2=Orif i ce/G rate (Orifice Controls 0.10 cfs @ 10.77 fps) <br />3=Orifice/Grate (Weir Controls 0.02 cfs @ 0.47 fps) <br />Summary for Pond S6: 816 FOR 10 YEAR <br />[62] Hint: Exceeded Reach R1 OUTLET depth by 0.02'@ 10.63 hrs <br />[80] Warning: Exceeded Pond R2 by 0.01'@ 8.66 hrs (0.19 cfs 0.010 af) <br />Inflow Area = <br />1.774 ac, <br />Inflow = <br />0.37 cfs @ <br />Outflow = <br />0.32 cfs @ <br />Primary = <br />0.16 cfs @ <br />Secondary = <br />0.16 cfs @ <br />23.90% Impervious, Inflow Depth = 2.79" <br />9.13 hrs, Volume= 0.413 of <br />10.62 hrs, Volume= 0.413 af, <br />10.62 hrs, Volume= 0.206 of <br />10.62 hrs, Volume= 0.206 of <br />Atten= 62%, Lag= 61.5 min <br />Atten= 14%, Lag= 89.6 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= 876.51' @ 10.62 hrs Surf.Area= 134 sf Storage= 765 cf <br />Plug-Flow detention time= 30.4 min calculated for 0.413 of (100% of inflow) <br />Center-of-Mass det. time= 30.3 min ( 889.1 - 858.7) <br />