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<br />(3) Direct runoff increments for computing <br />maximum probable flood, Assumption A <br />(values in inches) <br /> <br /> <br /> Incremental Accum. <br />Time Reduced Reduced Direct Runoff <br />Ending, Design Design 1 Incremental <br />Hr. Rainfall , in. Rainfall, in. Accum. Iner. Loss <br /> 0.25 0.78 0.78 0.09 0.09 0.69 <br /> 0.50 1.11 1.89 0.73 0.64 0.47 <br /> 0.75 1.50 3.39 1.92 1.19 0.31 <br /> 1.00 3.12 6.51 4.80 2. 88 0.2~ <br /> 1.25 0.66 7.17 5.42 0.60 0.0 <br /> 1.50 0.45 7.62 5.86 0.39 0.06 <br /> 1.75 0.33 7.95 6.18 0.27 0.06 <br /> 2.00 0.25 8.20 6.40 0.19 0.06 <br /> 2.25 0.20 8.40 6.60 0.14 0.06 <br /> 2.50 0.17 8.57 6.76 0.11 0.06 <br /> 2.75 0.09 8.66 6.86 0.03 0.06 <br /> 3.00 0.06 8.72 6.92 0.00 0.06 <br />1 Using CN = 85, AMC II, Fig. A-4, Appendix A, Page 541 <br />2 Computation by CN 85 gives 0.04 inch per IS-minutes. Abandon curve and <br /> use 0.06 inch per 15-minute3 for IS-minute storm increments. <br /> <br />- 16 - <br />