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0591335 Xcel Brainerd Facility MSE 24hr 3 10-Year Rainfa/1=3.86"
<br /> Prepared by Rehder 8�Associates, Inc. Printed 12/21/2020
<br /> HydroCAD�10.00-21 s/n 02629 O 2018 HvdroCAD Software Solutions LLC Paqe 12
<br /> �iscarded OutFlow Max=0.09 cfs @ 15.27 hrs HW=1,271.26' (Free Discharge)
<br /> 2=Exfiltration (Ex�itration Controis 0.09 cfs)
<br /> Qrlmary OutFlow Max=0.13 cfs @ 15.33 hrs HW=1,271.26' TW=1,271.03' (Dynamic Tailwater)
<br /> z1=Culvert (Outlet Controls 0.13 cfs @ 1.07 fps)
<br /> Summary for Pond 7P: Infiltration Basin 3
<br /> Inflow Area = 2.190 ac, 62.56% Impervious, Inflow Depth = 2.25" for 10-Year event
<br /> Inflow = 7.44 cfs a► 12.18 hrs, Volume= 0.410 af
<br /> Outflow = 1.52 cfs @ 12.56 hrs, Volume= 0.381 af, Atten=79%, Lag=22.9 min
<br /> Discarded = 0.12 cfs @ 12.56 hrs, Volume= 0.203 af
<br /> Primary = 1.41 cfs @ 92.56 hrs, Volume= 0.178 af
<br /> Routing by Dyn-Stor-Ind method,Time Span=0.00�8.00 hrs, dt=0.05 hrs
<br /> Peak Elew 1,272.10' a� 12.56 hrs Surf.Area=6,245 sf Storage=9,359 cf
<br /> Plug-Fiow detention time= 460.9 min calculated for 0.381 af(93%of inflow+)
<br /> Center-of-Mass det.time= 429.2 min ( 1,232.0-802.8 )
<br /> Volume Invert Avail Storac�e Stora e 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-feet) (sq ft)
<br /> 9,268.50 365 150.0 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 23,925 895.0 16,619 33,571 62,389
<br /> Device Routina Invert Outlet Devices
<br /> #1 Pnmary 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'/1,270.50' 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 Exfiitration over Surface area
<br /> 1)iscarded OutFlow Ma�c=0.12 cfs @ 12.56 hrs HW=1,272.10' (Free Discharge)
<br /> L2=Exflltratfon (Exfiltration Controls 0.12 cfs)
<br /> Primary OutFlow Ma�c=1.41 cfs @ 12.56 hrs HW=1,272.10' T11V=1,269.93' (Dynamic Tailwater)
<br /> L1=Culvert (BaRel Controls 1.41 cfs @ 3.53 fps)
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