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G., MOUND SLOPE WIDTH & LENGTH Landslope > 1% slope (landslope greater than 1%) ever 1 1. Downslope absorption width = absorption width minus rock layer width �h�✓� 6"(D2) Topsoil. ��.� +:•:+ 5 tP:ft lean Sendt 1 I .r. ... ft- 1 0 ft= 12 -ft paration - �•� Restricting Llyer Upslo Wldth(G2d) Rock idth(D2) Downs Wldth(C2q 2. Calculate mound size -h O it UPSLOPE a. Depth of clean sand fill at upslope edge of AbsorptionWidth-5-d(n rock layer = 3 ft minus the distance to restricting layer (Cl) asp 30 3ft- ft = '0 ft b. Mound height at the upslope edge of rock D-34: SLOPE MULTIPLIER TABLE layer = depth of clean sand for separation (G2a) Land UPSLOPE DOWNSLOPE Slope multiplifor various multi liers for various at upslope edge plus depth of rock layer (1 ft) in% sloers pe ratios sPope ratios plus depth of cover (1 ft) 3:1 4:1 5:1 6:1 7:1 8:1 3:1 4:1 5:1 6:1 7:1 r0 ft + ift + 1ft = .�,0 ft 0 3.0 4.0 5.0 6.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0 c. Upslope berm multiplier based on land slope 1 2.91 3.85 4.76 5.66 6.54 7.41 3.09 4.17 5.26 6.38 7.53 �-1 z (see figure D-34) 2 2.83 3.70 4.54 5.36 6.14 6.90 3.19 4.35 5.56 6.82 8.14 d. Upslope width = berm multiplier (G2c) times 3 2.75 3.57 4.35 5.08 5.79 6.45 3.30 4.54 5.88 7.32 8.86 upslope mound height (G2b): 4 2.68 3.45 4.17 4.84 5.46 6.06 3.41 4.76 6.25 7.89 9.72 5 2.61 3.33 4.00 4.62 5.19 5.71 3.53 5.00 6.67 8.57 10.77 3•}Z x r��ft =�_f t 6 2,54 3.23 3.85 4.41 4.93 5.41 3.66 5.26 7.14 9.38 12.07 DOWNSLOPE 7 2.48 4;gj 3.70 4.234 70 5.13 3.80 7.69 10.34 13.73 e. Drop in elevation = rock layer width (D2) times 8 2,42 3.03 3.57 4.05 4.49W 4.88 3.95 5.88 8.33 11.54 15.91 percent landslope (C5) = 10,0 9 2.36 2.94 3.45 3.90 4.30 4.65 4.11 6.25 9.09 13.04 18.92 )0 X_0 %_ 100 = -/)_f t 10 2.31 2.86 3.33 3.75 4.12 4.44 4.29 6.67 10.00 15.00 23.33 f. Downslope mound height= depth of clean 11 2.26 2.78 3.23 3.61 3.95 4.26 4.48 7.14 11.11 17.65 30.4? sand for slope difference (G2e) at downslope 12 2.21 2.70 3.12 3.49 3.80 4.08 4.69 7.69 12.50 21.43 43.75 rock edge plus the mound height at the upslope edge of rock layer (G2b) 3,0 ft + ) ft = 3.? ft g. Downslope berm multiplier based on percent land slop (see figure D-34) 91 _ 1)3 _ h. Downslope width = downslope multiplier Upsloefwidth(G fd ) (G2g) times downslope mound height(G20401 p A•s(1.9 X 3 ft = p _ftRock Bed $ !!j!P Width(G2d) Width(D2) __LLUpsl�o�e Width(G2d)- i. Select the greater of G1 and G2h as the M Length(M) 55 downslope width: I ft Downslope Width(4321) a) ft j. Total mound width is the sum of upslope Absorption Width(F)� width (G2d) width plus rock layer width _ a}'_ (D2) plus downslope width (G2i) Total Length(G2k)2(0 it 1=7 _ft+ /0 ft+ ate_ft= �_ft k. Total mound length is the sum of upslope width (G2d) plus rock layer length (D3) plus upslope width (G2d) !-ft+ 55 ft+ ft = _2feet a } + ss - a } = 9 Final Dimensions: P+Gp r)i -(0 L"M Lf�0'� S V C-Owl :sq 5'- Ov4 o X 1B AJO I hereby certify that I havecompleted this work in accordance with applicable ordinances, rules and laws. I/�� , (signature) _(license#) date)