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Cov r 1' <br /> G. MOUND SLOPE WIDTH & LENGTH Landslopeie___X <br /> R Scb- 4 "------- slope ratio q: I <br /> (landslope 1% or more) r ngric, t • <br /> 1. Subtract rock layer width from absorption width "'"�"d 6'Topsoil <br /> to obtain minimum downslope width <br /> Natural <br /> �' r <br /> I <br /> v2 0 ft- 1 d ft = /0 feet Upsloye iidth DowtyylopeWidt <br /> 2. Calculate minimum mound size ! >:«�odw '(�/ l <br /> a. Determine depth of clean sand fill at .1 <br /> Absorption Width <br /> upslope edge of rock layer: • d© i , <br /> Separation 3' - 11 / ft = 1, 9 feet ' <br /> b. Add depth of Glean sand for separation (2a) SLOPE MULTIPLIER TABLE <br /> at upslope edge, depth of rock layer (1 foot) to <br /> depth of cover (•1 foot) to find the mound height Lar <br /> Sla d UPSLOPE DOWNSLOPE <br /> g multipliers for various multipliers for various <br /> at the upslope edge of rock layer; i"' slope ratios• <br /> .ops raHas <br /> /, °f ft + lft + lft - 3 ,9 feet 3:1 4:1 5:1 6:1 7:1 8:1 3:1 4:1 5:1 6:1 7:1 <br /> 0 3.0 4.0 5.0 6.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0 <br /> c. Enter table with landslope and upslope ratio. <br /> 1 2.91 3.85 4.76 5.66 6.54 7.41 3.09 4.17 526 6.38 733 <br /> Select berm multiplier of 3'- 2 3 2 2.83 3.70 4.54 5.36 6.14 6.90 3.19 4.35 5.56 6.82 8.74 <br /> d. Multiply berm multiplier by upslope mound 3 2.75 3.57 4.35 5.08 5.79 6.45 3.30 4.54 5.88 7.32 8.86 <br /> height to find upslope width: <br /> 4 2.68 3.45 4.17 4.84 5.46 6.06 3.41 4.76 6.25 7.89 9.72 <br /> j,‘7 x3,23 = /3 feet 5 2.61 3.33 4.00 4.62 5.19 5.71 3.53 5.00 6.67 8.57 10.77 <br /> e. Multiply rock layer width by 2.54 ® 3.85 4.41 4.93 5.41 3.66 5.26 7.14 9.38 12.07 <br /> landslope to determine drop in elevation; 7 2.48 3.12 3.70 4.23 4.70 5.13 3.80 5.56 7.69 10-34 13.73 <br /> /0 x b 'Y.+ 100 = r (e feet . 8 2.42 3.03 3.57 4.05 4.49 4.88 3.95 5.88 8.33 11.54 15.91 <br /> f. Add depth of clean sand for.slope difference 9 2.36 2.94 3.45 3.90 4.30 4.65 4.11 6.25 9.09 13.04 18.92 <br /> (2e) at downslope rock edge, to the mound 10 2.31 2.86 3.33 3.75 4.12 4.44 4.29 6.67 10.00 15.00 23.'" <br /> height at the upslope edge of rock layer (2b) II 2.26 2.78 3.23 3.61 3.95 4.26 4.48 7.14 11.11 17.65 30. <br /> to find the downslope mound height; 12 2.21 2.70 3.12 3.49 3.80 4.08 4.69 7.69 1230 21.43 43.75 I <br /> ' , of ft + ,(! ft = 9,..cfeet <br /> g. Enter table with landslope and downslope ratio. Select <br /> downslope multiplier of S r 2Ce . <br /> h. Multiply downslope multiplier by downslope mound height to <br /> get downslope width: <br /> V,5 x S.;G = ,2 </ feet <br /> i. Compare the values of step G.1 /0 <br /> c <br /> and Step G.2h c/ Up yye Width <br /> Select the greater of the two values as the 3 <br /> downslope width: g 9 feet <br /> ). Total mound width is the sum of <br /> sl <br /> U o e Width d000,doab,�Rock ii n 'o Qon oa° <br /> o= Upslope Widt! <br /> 1 <br /> ppoaeodo°Q0<. Width !J 30'eoseoao< 3 <br /> upslope (G.2d) width plus rock layer L . 3 °°°"°°"°� Len�th ooC7po'0>,c>a< <br /> ,,,,,,,....,..o,-0,- <br /> /3 <br /> oado <br /> d o�4 4°00°0 n�0 D oma.Q o Q o D e]G. s <br /> width (D.2) plus downslope width(G.2i); <br /> :o r lk'wnsiope Width_ ^y, <br /> /3 ft + / 0 ft + •4/ ft = yj feet r Absorption Width or 0 <br /> k. Total mound length is the sum of upslope <br /> width (G.2d) plus rock layer length (D.3) <br /> plus upslope width (G.2d); , <br /> / 3 ft + .5-0 ft + l3 ft = 7(i feet Total Length__ ____ <br /> 74 <br /> Final Dimensions: <br /> f <br /> '/ r? x 76' <br />