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Lands]ope > 1% slope <br /> G. MOUND SLOPE WIDTH & LENGTH <br /> (13ndslope greater than 1%) <br /> ,351 t over 1711t*,,, <br /> 1. Downslope absorption width = absorption width (F) r,s"' Q31p., oe,° `° <br /> minus rock layer width (D2) ' ° ''::::!'!:4I4:! -!!'!!: : ,,,,, 6"Topsoil <br /> .�. '-"l .: n aean Sand ft i i i � � <br /> Vit, /? ft- /0 ft = 19 ft <br /> Restricting L y r <br /> Upslopq iVidthl(G2d) Rork V�Ird l h(D2) Do"'ns„ope Widlh(ry21) N <br /> 2. Calculate mound size - S� - tl �� <br /> UPSLOPE <br /> ! MIMI <br /> a. Depth of clean sand fill at upslope edge of <br /> Absorption WIT_ynd(F) <br /> rock layer = 3 ft minus the distance to restricting layer (C1) zt f <br /> 3ft- (.0-► ft = 1.0 ft <br /> b. Mound height at the upslope edge of rock D-34: SLOPE MULTIPLIER TABLE <br /> layer = depth of clean sand for separation (G2a) Land UPSLOPE DOWNSLOPE <br /> Sloppltipliers for various multipliers for various <br /> e, mu <br /> at upslope edge plus depth of rock layer (1 ft) in/ slope ratios slope ratios <br /> plus depth of cover (1 ft) I 3:1 4:1 5:1 6:1 7:1 8:1 3:1 4:1 5:1 6:1 7:1 <br /> 1.0 ft + ift + lft = 3.0 ft 03.0 4.0 5.0 6.0 7.0 8.0 3.0 4.0 5.0 6.0 7.0 <br /> 2.91 3.85 4.76 5.66 6.54 7.41 3.09 4.17 5.26 6.38 7.53 <br /> c. Upslope berm multiplier based on land slope <br /> 3.07:!, (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 <br /> 3 2.75 3.57 4.35 5.08 5.79 6.45 3.30 9.54 5.88 7.32 8.86 <br /> d. Upslope width = berm multiplier (G2c) times <br /> 9 2.68 3.45 4.17 4.84 5.46 6.06 3.41 4.76 6.25 7.89 9.72 <br /> upslope mound height (G2b): <br /> 5 2.61 3.33 4.00 4.62 5.19 5.71 3.53 5.00 6.67 8.57 10.77 <br /> ."--. -t7--f.:?' x : .0 ft = ..-7 ft <br /> 6 2.54 3.23 3.85 4.41 4.93 5.41 3.66 5.26 7.14 9.38 12.07 <br /> DOWNSLOPE 1 <br /> 2.48 3.12 3.70 4.23 4.70 5.13 3.80 5.56 7.69 10.34 13.73 <br /> e. Drop in elevation = rock layer width (D2) times <br /> 2.42 _LC7 3.57 4.05 4.49 4.88 3.95 (..1.5.8 8.33 11.54 15.91 <br /> percent landslope (C5) = 100 9 2.36 2.94 3.45 3.90 4.30 4.65 4.11 6.25 9.09 13.04 18.92 <br /> /0 ft x �l� % ± 100 = r q ft 10 2.31 2.86 3.33 3.75 4.12 4.44 4.29 6.67 10.00 15.00 23.33 <br /> f. Downslope mound height= depth of clean 11 2.26 2.78 3.23 3.61 3.95 4.26 9.98 7.14 11.11 17.65 30.4? <br /> sand for slope difference (G2e) at downslope 12 " <br /> 2.21 2.70 3.12 3.49 3.80. 4.08 4.69 7.69 12.50 21.43 .93.75 i <br /> rock edge plus the mound height at the t f <br /> upslope edge of rock layer (G2b) ! <br /> 3..0 ft + r t ft = 3.,,,e ft <br /> g. Downslope berm multiplier based on percent land slop <br /> 5.51,` (see figure D-34) S, <br /> h: Downslope width = downslope multiplier = � �`' <br /> Upslopey_Jid th(G2d) <br /> (G2g) times downslope mound height (G2f) `ll 1 1 ft <br /> .c..Z rbF x J• ft = ft ! Upslope f idth(G2d) Rock Width(D2) f(}f t Up�dope Widt}t(G2d) <br /> i. Select the greater of Gi and G2h as theft <br /> Length(D3) �l► <br /> !, <br /> downslope width: a.D., ft o "- a <br /> i-- Downslope Width(G2i)th(G2i) ft <br /> j. Total mound width is the sum of upslope ! Absorption Width(F) l <br /> width (G2d) width plus rock layer width -d.?,- -_r t <br /> (D2) plus downslope width (G2i) <br /> Total Length(G2k) e 5" ft <br /> 'J ft + !o ft + ,, ft = 4 ) ft <br /> k. Total mound length is the sum of upslope width (G2d) <br /> plus rock layer length (D3) plus upslope width (G2d',) <br /> `� ft + L-H ft + 9 ft = .5c) feet <br /> ?.. fi ,«_ s Final Dimensions: <br /> 'I <br /> 4 ) j X °a , <br /> 1 <br /> I <br /> I hereby certify that I have completed this work in accordance;with applicable ordinances, rules and laws. <br /> e`- . /J 7, (-2 _ , <br /> �. �� (signature) �? � (license#) Li '•31. --P f` <br /> , (date) <br />