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0591335 XCeI Brainerd Facility MSE 24hr 3 10-Year Rainfall=3.86"
<br /> Prepared by Rehder&Associates, Inc. Printed 12/21/2020
<br /> HydroCAD�10.00-21 s/n 02629 O 2018 HvdroCAD Software Solutions LLC Paae 11
<br /> Device Routina Invert Outlet Devices
<br /> #1 Primary 1,269.00' 12.0" Round Culvert
<br /> L=29.0' RCP, square edge headwall, Ke=0.500
<br /> Inlet/Outlet invert= 1,269.00'/1,268.71' S=0.0100'P Cc=0.900
<br /> n=0.012, Flow Area=0.79 sf
<br /> #2 Device 1 1,271.00' 48.0"Horiz.Orifice/Grate C=0.600
<br /> Limited to weir flow at low heads
<br /> #3 Discarded 1,268.00' 0.800 in/hr Extiltration over Surtace area
<br /> 4iscarded OutFlow Max=0.09 cfs @ 12.59 hrs HW=1,271.10' (Free Discharge)
<br /> z3=Exfiltration (Exfiltration Controls 0.09 cfs) �
<br /> Primary OutFlow Max=1.34 cfs @ 12.59 hrs HW=1,271.10' TW=0.00' (Dynamic Tailwater)
<br /> L-1=Culvert (Passes 1.34 cfs of 4.79 cfs potential flow)
<br /> z2=0rifice/Grate (Vlleir Controls 1.34 cfs @ 1.05 fps)
<br /> Summary for Pond 6P: Infiltration Basin 2
<br /> Inflow Area= 3.000 ac, 63.00% Impervious, Inflow Depth = 1.34" for 10-Year event
<br /> Inflow = 3.25 cfs @ 12.14 hrs, Volume= 0.335 af
<br /> Outflow = 0.22 cfs @ 15.33 hrs, Volume= 0.263 af, Atten=93%, Lag= 191.0 min
<br /> Discarded = 0.09 cfs @ 15.27 hrs, Volume= 0.229 af
<br /> Primary = 0.13 cfs @ 15.33 hrs, Volume= 0.034 af
<br /> Routing by Dyn-Stor-Ind method,Time Span=0.00-48.00 hrs, dt=0.05 hrs
<br /> Peak Elev= 1,271.26' @ 15.27 hrs Surf.Area= 5,021 sf Storage= 10,778 cf
<br /> Plug-Flow detention time= (not calculated: outflow precedes inflow)
<br /> Center-of-Mass det.time= 777.5 min ( 1,593.0-815.5 )
<br /> Volume Invert Avail.Storaqe Storaqe Description
<br /> #1 1,268.00' 29,907 cf Custom Stage Data(Irregular)Listed below(Recalc) _
<br /> Elevation Surt.Area Perirr�. Inc.Store Cum.Store Wet.Area
<br /> _ (feefl (sa ft) (feet) (cubic-feet) (cubic-feet) (sq-ft)
<br /> 1,268.00 1,900 250.0 0 0 1,900
<br /> 1,269.00 2,690 285.0 2,284 2,284 3,414
<br /> 1,270.00 3,590 315.0 3,129 5,413 4,877
<br /> 1,271.00 4,685 450.0 4,125 9,538 13,105
<br /> 1,272.00 6,065 470.0 5,360 14,898 14,639
<br /> 1,273.00 7,500 490.0 6,770 21,668 16,241
<br /> 1,274.00 9,000 510.0 8,239 29,907 97,909
<br /> Device Routin Invert Outlet Devices
<br /> #1 Pnmary 1,271.00' 15.0" Round Cuivert
<br /> L= 153.0' CPP, square edge headwall, Ke=0.500
<br /> Inlet/Outlet Invert= 1,271.00'/1,270.00' S=0.0065'P Cc=0.900
<br /> n=0.012, Flow Area= 1.23 sf
<br /> #2 Discarded 1,268.00' 0.800 in/hr Exfiltration over Surtace area
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