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2. Frequency ........................yr = 10 <br />3. Rainfall ,P(24 - hour) .............. in = 2.00 <br />4. Initial abstraction, la............ = 0.5641 <br />5. Compute la /P ....................... = 0.2821 <br />6. Unit peak discharge, qu ...... csm/in = 447.98 <br />7. Runoff. Q .........................in = 0.4844 <br />8. Pond & swap adjustment factor .... Fp = 0.87 <br />9. Peak Discharge,gp ...............cfs = 11.6520 <br />CULVERT103 <br />Time of Concentration (SCS Method) <br />Curve Number: 78 <br />Length of Flow (ft): 7113.73 <br />Average Land Slope (percent): 5.00 <br />Time of Concentration (hrs): 1.21 <br />CULVERT103 <br />Graphical Peak Discharge <br />Project: NUCLA MINE <br />Location: CULVERT 103 <br />By: GL Date: 02/20/06 <br />Checked: Date: <br />Revised August 2009(PB06) Attachment 2.05.3(3) -1 -74 <br />