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MSE 24-hr 3 Rainfall=2.83"2-Yr Proposed Prepared by Schultz Engineering And Site Design Page 16HydroCAD® 10.10-4b s/n 11475 © 2020 HydroCAD Software Solutions LLC Peak Elev= 942.42' @ 12.11 hrs Device Routing Invert Outlet Devices #1 Primary 942.10'12.0" Round Culvert L= 138.0' CMP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 942.10' / 939.50' S= 0.0188 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf Primary OutFlow Max=0.39 cfs @ 12.11 hrs HW=942.41' TW=940.08' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.39 cfs @ 1.90 fps) Summary for Pond CB2: Inflow Area = 0.332 ac, 83.43% Impervious, Inflow Depth > 2.35" Inflow = 1.26 cfs @ 12.12 hrs, Volume= 0.065 af Outflow = 1.26 cfs @ 12.12 hrs, Volume= 0.065 af, Atten= 0%, Lag= 0.0 min Primary = 1.26 cfs @ 12.12 hrs, Volume= 0.065 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 940.09' @ 12.12 hrs Device Routing Invert Outlet Devices #1 Primary 939.50'12.0" Round Culvert L= 42.0' CMP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 939.50' / 938.80' S= 0.0167 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf Primary OutFlow Max=1.21 cfs @ 12.12 hrs HW=940.08' TW=936.72' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.21 cfs @ 2.58 fps) Summary for Pond FB1: Inflow Area = 0.643 ac, 65.79% Impervious, Inflow Depth > 2.09" Inflow = 2.19 cfs @ 12.12 hrs, Volume= 0.112 af Outflow = 0.72 cfs @ 12.27 hrs, Volume= 0.113 af, Atten= 67%, Lag= 9.2 min Primary = 0.72 cfs @ 12.27 hrs, Volume= 0.113 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 937.14' @ 12.27 hrs Surf.Area= 0.024 ac Storage= 0.021 af Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 6.5 min ( 771.6 - 765.2 ) Volume Invert Avail.Storage Storage Description #1 936.00' 0.222 af Custom Stage Data (Prismatic) Listed below (Recalc)