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• <br /> MOUND SLOPE WIDTH&LENGTH(Greater than 1%) <br /> F. ABSORPTION WIDTH <br /> Absorption width equals absorption ratio(C4)times rock layer width(D2) <br /> 2 x 10.0 ft = 20.0 ft <br /> G. <br /> 1. Downslope absorption width=absorption width(F)minus rock layer width(D2) D-34 Slope Multiplier Table <br /> 20 ft - 10 ft = 10 ft Land <br /> Slope Upslope Downslope <br /> 2. Calculate mound size in% multipliers multipliers <br /> UPSLOPE 3:1 4:1 3:1 4:1 <br /> a.Determine depth of clean sand at upslope edge of rock layer 0 3.00 4.00 3.00 4.00 <br /> =3 feet minus distance to restricting layer(C1) 1 2.91 3.85" 3.09 4.17 <br /> 3 ft - 1.6 ft= 1.4 ft 2 2.83 3.70 3.19 4.35 <br /> 3 2.75 .3.57` 3.30 4.54 <br /> b.Mound height at the upslope edge of rock layer=depth of clean sand for separation(G2a) 4 2.68 3.45 3.41 4.76 <br /> at upslope edge plus depth of rock layer(1 foot)to depth of cover(1 foot) 5 2:61 333 3.53 5.00 <br /> 1.4 ft+1ft+1 ft= 3.4 ft 6 2.54 3.23 3.66 5.26 <br /> 7 2.48 312 3.80 5.56 <br /> c.Upslope berm multiplier based on land slope(see figure D-34) 3.45 8 2.42 3.03 3.95 5.88 <br /> 9 2.36 2.94 4.11 625 <br /> d.Upslope width=berm multiplier(G2c)times upslope mound height(G2b): 10 2.31 2.86 4.29 6.67 <br /> 3.45 x 3.4 ft = 11.0 ft 11 2.26 . 278 4A87.14; <br /> 12 2.21 2.70 4.69 7.69 <br /> DOWNSLOPE <br /> e.Drop in elevation=rock layer width(D2)times percent landslope(C5)/100 <br /> 10 ft x 8 % /100= 0.8 ft <br /> f.Downslope mound height=depth of clean sand for slope difference(G2e) <br /> at downslope rock edge plus the mound height at the upslope edge of rock layer(2b) <br /> 0.8 ft + 3.4 ft = 4.2 ft <br /> g. Downslope berm multiplier based on percent land slope(see Figure D-34) 3.95 <br /> h. Downslope width=downslope multiplier(G2g)times downslope mound height(G2f) <br /> 3.95 x 4.2 = 17.0 ft <br /> j.Total mound width is the sum of upslope(G2d)width plus rock layer width(D2)plus downslope width(G2h) <br /> 11.0 ft+ 10.0 ft + 17.0 ft = 38.0 ft <br /> k.Total mound length is the sum of upslope width(G2d)plus rock layer length(D3) <br /> plus upslope width(G2d) <br /> 11.0 ft + 63.0 ft + 11.0 ft = 85.0 ft <br /> Final Dimensions (slope>1%) 38.0 ft x 85.0 ft <br /> I hereby ce .fy that I have completed this work in accordance with all applicable ordinances,rules and laws <br /> _. (Signature) 810 (License#) 6/11/2005 (date) <br />