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MSE 24-hr 3 Rainfall=7.38"100-Yr Proposed Prepared by Schultz Engineering And Site Design Page 15HydroCAD® 10.10-4b s/n 11475 © 2020 HydroCAD Software Solutions LLC L= 174.0' CMP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 942.60' / 939.50' S= 0.0178 '/' Cc= 0.900 n= 0.012, Flow Area= 0.79 sf Primary OutFlow Max=1.21 cfs @ 12.11 hrs HW=943.18' TW=940.86' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.21 cfs @ 2.58 fps) Summary for Pond CB2: Inflow Area = 0.373 ac, 85.25% Impervious, Inflow Depth > 6.83" Inflow = 3.61 cfs @ 12.11 hrs, Volume= 0.212 af Outflow = 3.61 cfs @ 12.11 hrs, Volume= 0.212 af, Atten= 0%, Lag= 0.0 min Primary = 3.61 cfs @ 12.11 hrs, Volume= 0.212 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 940.91' @ 12.11 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=3.50 cfs @ 12.11 hrs HW=940.86' TW=939.74' (Dynamic Tailwater) 1=Culvert (Inlet Controls 3.50 cfs @ 4.46 fps) Summary for Pond FB1: Inflow Area = 0.647 ac, 70.48% Impervious, Inflow Depth > 6.52" Inflow = 6.33 cfs @ 12.11 hrs, Volume= 0.352 af Outflow = 3.26 cfs @ 12.22 hrs, Volume= 0.264 af, Atten= 48%, Lag= 6.2 min Primary = 3.26 cfs @ 12.22 hrs, Volume= 0.264 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 940.02' @ 12.22 hrs Surf.Area= 0.061 ac Storage= 0.154 af Plug-Flow detention time= 127.9 min calculated for 0.264 af (75% of inflow) Center-of-Mass det. time= 63.3 min ( 814.1 - 750.8 ) Volume Invert Avail.Storage Storage Description #1 935.80' 0.221 af Custom Stage Data (Prismatic) Listed below (Recalc) 129