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<br />580TRAMM Type 1/ 24-hr Rainfal/=5.90" <br />Prepared by PLOWE ENGINEERING, INC. Page 2 . <br />HydroCAO@ 6.00 sin 001574 @ 1986-2001 Applied Microcomputer Systems 1017/02 <br /> <br />Runoff <br /> <br />Subcatchment 1 EX: EXISTING <br /> <br />= <br /> <br />2.35 cfs @ 12.08 hrs, Volume= <br /> <br />0.142 af <br /> <br />Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0,05 hrs <br />Type II 24-hr Rainfall=5.90" <br /> <br />Area (ac) CN Description <br />0.980 61 GRASS <br /> <br />T c Length <br />(min) (feet) <br />15.0 <br /> <br />Runoff = <br /> <br />Slope Velocity Capacity Description <br />(ft/f!) (ft/sec) (cfs) <br /> <br />Direct Entry, EXISTING <br /> <br />:)1..., r.....;;.; "- <br />.;> . <br />c J..{ ~ f '- <br /> <br />Subcatchment 1S: (TO POND 1) <br /> <br />1.24 - O' > <br />- )(D,(,(-, ~ J <br />/2. <br /> <br />4.11 cfs @ 11.99 hrs, Volume= <br /> <br />0.205 af <br /> <br />":17'1(. 'tr <br /> <br />Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs <br />Type II 24-hr Rainfall=5.90" <br /> <br />Area (a c) <br />0.180 <br />OAOO <br />0.030 <br />0.610 <br /> <br />Tc <br />(min) <br />8.0 <br /> <br />Length <br />(feet) <br /> <br />Runoff <br /> <br />= <br /> <br />CN Description <br />61 GRASS <br />98 ROOF, BIT. WALK <br />85 POND/MARSH <br />86 Weighted Average <br /> <br />. <br /> <br />Slope Velocity Capacity Description <br />(ft/f!) (ft/sec) (cts) <br />Direct Entry, GRASS/BIT./PIPE <br /> <br />Subcatchment 2S: TO POND 2 <br /> <br />0, b 1 ~ _ , ," <br />- ,,-.; I - ,0 _ I A(. " <br />J"., . <br />. - ~ ') 2. 7 ff5 <br /> <br />2.05 cfs @ 11.98 hrs, Volume= <br /> <br />0.094 af <br /> <br />Runoff by SCS TR-20 method, UH=SCS, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs <br />Type II 24-hr Rainfall=5.90" <br /> <br />Area (a c) <br />0.200 <br />0.100 <br />0.070 <br />0.370 <br /> <br />T c Length <br />(min) (feet) <br />7.0 <br /> <br />eN Description <br />61 GRASS <br />98 ROOF <br />85 POND/MARSH <br />76 Weighted Average <br /> <br />Slope Velocity Capacity Description <br />(ft/f!) (ft/sec) (cfs) <br />Direct Entry, ROOF/GRASS <br /> <br />r: ';_""?'. <br />.~~. ':-4",-.," <br /> <br />/" . <br />It; ?l...",- . <br /> <br />",,J - <br /> <br />.:"., t _'j'; <br /> <br />;j.../J <br /> <br />~ (4 J ~ <br />.' <br />