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G. DOWNSLOPE BERM WIDTH slope:- Cover 1' 1. If landslope is 1% or more, a� 1 subtract rock layer width from adsorption width xo i 4 to obtain minimum downslope berm toe 6"Topsoil al.. ft - )o ft = 10 feet atural Soil 2. Calculate Minimum mound Size a. Determine depth of clean sand fill at upsl°pe width Nwnaslope Width upslope edge of rock layer: R°d;Width Alnor� t7 Width Separation 3' - J, O ft = --�.O feet b. Add depth of clean sand for separation (2a) at upslope edge, depth of rock layer (1 foot) to depth of cover (1 foot) to find the mound height at the upslope edge of rock layer; .�,0 ft +ift + ift = y,3 feet c. Enter table with landslope and upslope berm upslo width . ratio. Select berm multiplier of a.S'7 d. Multiply berm multiplier b upslope mound u slo a width :�aAa•pa'Q;; hock Bed �Q•pQY4•a' :Upslope Width P YYp. 9c,Qa °a wid�t�h�y,• 1° height to find upslope berm width: 'ly �w�:r��i�'�o 06P0 a49�ro�u a�ae�'�•o Yid'f y.o x3�_=1�- feet L r e. Multiply rock layer width by landslope to determine drop in elevation; F° Downslope Width._ Absorption Width to x_2_210+ 100 = 2 feet f. Add depth of clean sand for slope Total Length o c� difference (2e)at downslope edge, to the mound height at the upslope edge of rock layer (2b) to find the downslope height; 4,0 ft + , -z _ft= 9.3 feet g. Enter table with landslope and downslope berm ratio. Select berm multiplier of y -L h. Multiply berm multiplier by downslope mound height to get downslope berm width: y,Sy x y.2 = ;,0 feet BERM SLOPE MULTBUERS i. Compare the values of step G.1I _ and Ste G.2h a o Lana DOWNSLOPE UPSLOPE P Slope, term multipliers for various term multiplies for various Select the greater of the two values as the in% bum slope ratios term slope ratios downslope berm width; a feet Total mound width is the sum of 5 4 5 7 �' 0 3.0 4.0 5.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 8.0 upslope berm (G.2d) 1 3.09 4.17 5.26 6.38 7.53 2.91 3.85 4.76 5.66 6.54 7.41 width plus rock layer width (D.2) 2 3.19 4.35 5.56 6.82 8.14 2.83 3.70 4.54 5.36 6.14 6.90 plus downslope berm width(G.2i); 3 3.30 5.88 7.32 8.86 2.75 557 4.35 5.08 5.79 6.45 I Lj_ft + g _ft+ au') _ft = feet 4 3.41 4.76 6.25 7.89 9.72 2.68 3.45 4.17 4.84 5.46 6.06 k. Total mound length is the sum of upslope 5 3.53 5.00 6.67 8.57 10.77 2.61 3.33 4.00 4.62 5.19 5.71 berm width (G.2d) plus rock layer length (D.3) 6 3.66 5.26 7.14 9.38 12.07 2.54 3.23 3.85 4.41 4.93 5.41 plus upslope berm width (G.2d); 7 3.80 5.56 7.69 10.34 13.73 2.48 3.12 3.70 4.23 4.70 5.13 may_ft + to V ft + ) L4-ft= c7 L feet 8 3.95 5.88 8.33 11.54 15.91 2.42 3.03 3.57 4.05 4.49 4.88 a L + tole au /p 9 4.11 6.25 9.09 13.04 18.92 2.36 2.94 3.45 3.90 4.30 4.65 10 4.29 6.67 10.00 15.00 23.33 2.31 2.86 3.33 3.75 4.12 4.44 Final Dimensions. ll 4.48 7.14 11.11 17.65 30.43 2.26 2.78 3.23 3.61 3.95 4.26 12 4.69 7.69 12.50 21.43 43.75 2.21 2.70 3.12 3.49 3.80 4.08 Li L1 X lo A 0�