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DEC-05-2003 FRI 02�34 PM TONY EIDEN COMPANY FAX N0, 763 559 6423 P, 05 <br /> 2yti��-- <br /> THOIN���1 Type ll 24-hr Rainfall=�.75" <br /> Prepared by MFRA P�ge 1 <br /> HydroCADc�6.00 s/n 000887 � 1966-20i;�1 qpplied Microcomputer Systems 12/5/;ZQ�3 <br /> �S Yr,r� <br /> Pond 1 P: Wetl��nd <br /> fnflow = 11.36 cfs @ 12.08 �•r•s. Volume- 0.677 af <br /> Outflow = 7.90 cfs @ 12.19 'r rs, Volume= 0.672 af, Atten= 30%, Lag= 6.6 min <br /> Primary - 7.90 cfs @ 12.19 I•rs, Volume= 0.672 af <br /> Secondar��= 0.00 cfs @ 5_QO I�rs, Volume= 0.000 af <br /> Routing b�� Stor-Ind method, Time Spa��-=5.00-20.00 hrs, dt= 0.05 hrs <br /> Peak Elev= 976.31' Storage= 3,610 cl� <br /> Plug-Flow detention time= 7.9 min calc ill��ted for 0.67�af(9�i% Qf inflow) <br /> Storage and wetted areas determined ;�y Prismatic sections <br /> Elevation SurF.Area Inr,,.��tore Cum.St�ore <br /> feet (sq-ft) (cut ic;feet) cubic-f�;et <br /> 975.00 400 0 0 <br /> 976.00 1,700 1,050 1,l')50 <br /> 977.00 15,0�0 8,350 9,��00 <br /> 978.00 26,285 .?0,6�3 30,�)43 <br /> Primary C►utFlow (Free Discharge) <br /> t-1=Culvert <br /> Secondary OutFlow (Free Discharge�' <br /> L-•2=Bro�id-Crested Rectangular Weir <br /> # Routinq Invert Outlet Ds�,�ices <br /> 1 Primary 975.00' 24.0" x 4�!i,.(i' long Culvert CNIP, end-section conforming to fill, Ke=O.;i00 <br /> Outlet Irn iart= 973.90' S= 0.02�44 '/' n= 0.024 Cc=0.900 <br /> 2 Ser:flndary 978.00' 12.0' lon��i �: '12.0'breadth Bro�ad-Crested Rectangular Wei� <br /> Head (feE;�:l 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1_60 <br /> Coef. (Er�;�li��h) 2.57 2.62 2.7(1 2.67 2.66 2.67 2.66 2.64 <br />