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. • G: DOWNSLOPE DIKE WIDTH 1. If landslope is 3% or more, subtract rock layer width from adsorption width to obtain minimum downslope dike toe for '-...., absorption: • a',I) ft - Jo ft = 1 '7 feet 2. Calculate minimum mound size based on geometery: a. Determine depth of clean sand fill at.upslope edge of rock layer: Separation -0 feet b. Multiply rock layer width by landslope to determine drop in elevation; Slope Difference ;:,;," ' } /0 x c4 %+ 100 = . �' feet � • c. Add depth of clean sand depth of clean sand for -,.^ -.....-___a.avww . separation at upslope edge (2a) to depth of rock layer to s... -''......... 1:4......41.9.119449 44' rock depth and the depth of cover to find the total mound 1` height at upslope edge of rock layer; 2.0 ft + 1 ft + 1 ft = L-1 feet d. Enter table on page bottom with landslope and upslope dike ratio. Select dike multiplier of 3. o3 . e. Multiply dike multiplier by upslope mound height to get upslope dike width: y x ;3.0;, = 1 a feet f. Add the depth of slope difference (2b) to the upslope height to get the downslope height gl.0 + .'-1 = y . (,! feet _ g. Enter table on page bottom with landslope and downslope dike ratio. Select dike multiplier of c Y>c? . h. Multiply dike multiplier by downslope mound height to get downslope dike width: Y. t! x kgs' = Pfeet i. Compare the values of step G.1 and Step G.2.h. Select the greater of the two values as the downslope dike width; a e feet `::: : •::;