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<br />Time to breach and evacuate the reservoir (Tp) is given by the following <br />empirical formula:1 <br /> <br />-0.10 <br />Tp = (3.37)(V.093)(e-l.7KV ) <br /> <br />Equation 2 <br /> <br />(Limited to Tp ~ 0.25 hours) <br /> <br />where K is a function of eight physical dimensions of the dam and reservoir. <br />and the relative erosiveness of the embankment: <br /> <br />K = (H-FB)(Kl)(K2)(K3)(K4) <br />H <br /> <br />Equation 3 <br /> <br />Kl = (0.2M + 10). <br />CW <br /> <br />(Limited To = 0.5~ kl~ 1.5) <br /> <br />Equation 4 <br /> <br />K2 = (H6.01)(LC-.543)(A4.45)(V-5.39). <br /> <br />Equation 5 <br /> <br />Limited to <br /> <br />(for y < 200. 0.5 ~ K2 ~ 1.5) <br />H <br /> <br />(for 200 ~ Y ~ 1000. 0.05 ~ K2.< 1.5) <br />H <br /> <br />(for y > 1000. 0.005 ~ K2 5 1.5) <br />H <br /> <br />K3=( 5 )0.5 <br />Zl + Z2 <br /> <br />(Limited to 0.5 ~ K3 ~ 1.5) <br /> <br />Equation 6 <br /> <br />K4 = Erosiveness of the Embankment Material <br /> <br />(Limited to 0.5 ~ K4 ~ 1.5) <br /> <br />The input data ot table I is required to complete the computations of <br />equations 1 through 6. <br /> <br />3 <br />