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Revised 7/8/82 <br />• SCS Hydrograph Procedure <br />1) Estimate rainfall from the 10-year, 24-hour event <br />1.6 Inches <br />2) Estimate rainfall excess CN = 79 <br />0.30 Inches <br />3) Estimate unit hydrograph timing parameters <br />t~ = 5.37 Minutes <br />tp = 6.44 Minutes <br />4) Estimate unit hydrograph peak flow rate <br />qp = 172.6 cfs <br />5) Use dimensionless hydrograph (or triangular) <br />C~ <br />J <br />• <br />