SUPPLEMENTAL MATERIALS (6-19-17)

14-020_TentPUD_StmDes_Completeness_2017-0614 Type IA 24-hr 10 yr Rainfall=4.46" Prepared by Microsoft Printed 6/13/2017 HydroCADO 10.00-16 s/n 09344 © 2015 HydroCAD Software Solutions LLC Page 8 Peak Storage= 4 cf @ 9.39 hrs Average Depth at Peak Storage= 0.09' Bank-Full Depth= 0.67' Flow Area= 0.3 sf, Capacity= 2.22 cfs 8.0" Round Pipe n= 0.010 PVC, smooth interior Length= 130.0' Slope= 0.02007' Inlet Invert= 879.00', Outlet Invert= 876.40' O Summary for Pond R2: (new Reach) [57] Hint: Peaked at 876.52' (Flood elevation advised) Inflow Area = 0.777 ac, Inflow = 0.17 cfs @ Outflow = 0.17 cfs @ Primary = 0.17 cfs @ 28.51% Impervious, Inflow Depth= 2.88" 9.03 hrs, Volume= 0.186 of 9.03 hrs, Volume= 0.186 af, 9.03 hrs, Volume= 0.186 of Atten= 0%, Lag= 0.0 min for 10 yr event Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 876.52'@ 10.63 hrs Device Routing Invert Outlet Devices #1 Primary 874.00' 8.0" Round Culvert L= 50.0' Square-edged headwall, Ke= 0.500 Inlet / Outlet Invert= 874.00'/ 873.20' S= 0.01607' Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.35 sf Primary OutFlow Max=0.00 cfs @ 9.03 hrs HW=875.54' TW=875.55' (Dynamic Tailwater) L1=Culvert ( Controls 0.00 cfs) Summary for Pond S1: 776 FOR 10 YEAR Inflow Area = 0.384 ac, 49.69% Impervious, Inflow Depth = 3.28" for 10 yr event Inflow = 0.23 cfs @ 8.01 hrs, Volume = 0.105 of Outflow = 0.19 cfs @ 8.33 hrs, Volume = 0.105 af, Atten= 14%, Lag= 19.2 min Primary = 0.19 cfs @ 8.33 hrs, Volume = 0.105 of Routing by Dyn-Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.01 hrs Peak Elev= 884.51' @ 8.33 hrs Surf.Area= 32 sf Storage= 144 cf Plug-Flow detention time= 7.9 min calculated for 0.105 of (100% of inflow) Center-of-Mass det. time= 6.1 min ( 734.9 - 728.8 )