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0591335 Xcel Brainerd Facility MSE24hr3 900-YearRainfal1=6.25"
<br /> Prepared by Rehder&Associates, Inc. Printed 12/21/2020
<br /> HydroCAD�10.00-21 s/n 02629 O 2018 HvdroCAD Soflware Solutions LLC Paqe 18
<br /> �Iscarded OutFlow Max=0.12 cfs @ 12.81 hrs HW=1,272.20' (Free Discharge)
<br /> 2=Exfiltration (Exfiltration Controls 0.12 cfs)
<br /> Qrimary OutFlow Max=3.17 cfs @ 12.94 hrs HW=1,272.18' TW=1,271.48' (Dynamic Tailwater)
<br /> 'z-1=Culvert (Outlet Controls 3.17 cfs @ 3.40 fps)
<br /> Sumrr�ary for Pond 7P: Infiltration Basin 3
<br /> Inflow Area= 2.190 ac, 62.56% Impervious, Inflow Depth = 4.43" for 100-Year event
<br /> Inflow = 14.34 cfs @ 12.17 hrs, Volume= 0.809 af
<br /> OutFlow = 5.23 cfs @ 12.38 hrs, Volume= 0.776 af, Atten=64%, Lag= 12.6 min
<br /> Discarded = 0.19 cfs @ 12.39 hrs, Volume= 0.228 af
<br /> Primary = 5.04 cfs @ 12.38 hrs, Volume= 0.549 af
<br /> Routing by Dyn-Stor-Ind method, Time Span=0.00�8.00 hrs, dt=0.05 hrs
<br /> Peak Elev= 1,272.88' @ 12.39 hrs Surt.Area= 10,177 sf Storage= 15,678 cf
<br /> Plug-Flow detention time= 265.2 min calculated for 0.776 af(96%of inflow)
<br /> Center-of-Mass det.time= 244.2 min ( 1,033.5-789.3 )
<br /> Volume Invert Avail Stora e Storaqe Description
<br /> #1 1,268.50' 33,571 cf Custom Stage Data(Irregular)Listed below(Recalc)
<br /> Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area
<br /> _ (feet) (sq-ft) (feet) (cubic-feet (cubic-feefl (sq-ft)
<br /> 1,268.50 365 150.0 0 0 365
<br /> 1,269.00 720 185.0 266 266 1,302
<br /> 1,270.00 1,840 375.0 1,237 1,503 9,773
<br /> 1,271.00 3,515 510.0 2,633 4,136 19,291
<br /> 1,272.00 5,800 645.0 4,610 8,746 31,713
<br /> 1,273.00 10,875 770.0 8,206 16,952 45,806
<br /> 1,274.00 23,125 895.0 16,619 33,571 62,389
<br /> Device RoutinA Invert OuUet Devices
<br /> #1 Primary 1,271.50' 15.0" Round Culvert
<br /> L=237.0' CPP, square edge headwall, Ke=0.500
<br /> Inlet/Outlet Invert= 1,271.50'/ 1,270.60' S= 0.0042 'P Cc= 0.900
<br /> n=0.010, Flow Area= 1.23 sf
<br /> #2 Discarded 1,268.50' 0.800 in/hr Exflltration over Surface area
<br /> �scarded OutFlow Max=0.19 cfs @ 12.39 hrs HW=1,272.88' (Free Discharge)
<br /> 2=Exflltration (Exfiltration Controls 0.19 cfs)
<br /> Primary OutFlow Max=5.03 cfs @ 12.38 hrs HW=1,272.88' TVV=1,271.46' (Dynamic Tailwater)
<br /> L'1=Culvert (BaRel Controls 5.03 cfs @ 4.64 fps)
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