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DIKE WIDTHS FOR SEWAGE TREATMENT MOUNDS <br /> SR - • <br /> - SR <br /> I h2 . h - 41111 <br /> d2 <br /> d2 - W d, <br /> SR = Slope Ratio of horizontol distance per 1.0 foot vertical <br /> s = Landslope in percent (feet per 100 feet) % 7 <br /> hi = Depth of mound on upslope edge of rock bed 3 <br /> h2 = Depth of mound on downslope edge of rock bed / 7 <br /> W = Width of rock bed /0' <br /> di = Upslope dike width 9 <br /> d2 = Downslope dike width 20 <br /> FORMULAS: <br /> hi SR h2 SR <br /> di <br /> rs d2 _ s •' h2 = hi + <br /> ♦ W( ) <br /> 1 100 SR J [1 - 100 SR 100 <br /> u, <br />