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G. , MO[JND SLOPE WIDT'H & LENGTH Landslope > 1% slope <br /> (landslope greater than 1%) .o o e1, <br /> 1. Downslope absorption width = absorption width (F) ° �° ° ' � �° <br /> 'v'o oa�,a <br /> ,0080 <br /> minus rock layer width (D2) L 6•�ToPso° <br /> -�,�_� ��Clean Sand L'ft <br /> ,!t ' ��1 lt- i�� lt = � / lt eparation � .fi..ft... ,.... �� , , . .�.�.� , <br /> Restrlcling Layer <br /> Upslop . idth(G7d) Rock lyldt�r D1) �wnslo�y�idth((]i) <br /> 2. Calculate mound size " _ s� '' <br /> UPSLOPE <br /> a. Depth of clean sand fill at upslope edge of <br /> Abwrption Width-Sand(F� <br /> rock layer = 3 ft minus the distance to restricting layer (C1) x ,��;� <br /> 3 ft - ,,`�� ft = ). � 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) L�,a UPSLOPE DOWNSLOPE <br /> Slope multipliers for various mulliP liers far various <br /> at upslope edge plus depth of rock layer (1 ft) �n/ slope ratios slope ratios <br /> plus depth of cover (1 ft) 3:7 4:] 5:] 6:1 7:] 8:1 3:1 9:1 5:1 6:1 7:1 <br /> �'-� ft + lft + lft = '>�v lt 0 3.0 4.0 5.0 6.D 7.0 8.0 3.0 4A 5.0 6.0 7.0 <br /> c. Upslope berrn multiplier based on land slope 1 2.91 3.85 4.76 5.66 6.54 7.91 3.09 9.17 5.26 6.38 7.53 <br /> �,��l•;-� (see figure D-34) Z 2•83 3.70 9.54 5.36 6.14 6.90 3.19 4.35 5.56 6.82 8.14 <br /> 3 Z.75 3.57 9.35 5.08 5.79 6.95 3.30 9.59 S.BB 7.32 8.86 <br /> d. Upslope width = ber�n multiplier (G2c) times <br /> 4 2.68 3.45 4.17 4.89 5.46 6.06 3.91 4.76 6.25 7.89 9.72 <br /> upslope mound height (G2b): <br /> 5 2.6] � S 9.00 4.62 5.79 5.7] 3.53 �5� 6.67 8.57 10.77 <br /> �,.=r: t.� x �a;.�.� ft = a ft � <br /> 6 2.54 3.23 3.85 4.41 9.93 5.91 3.66 5.26 7.14 9.38 12.07 <br /> DOWNSLOPE 7 2.48 3.12 3.70 4.23 9.70 5.73 3.80 5.56 7.69 10.34 �3.73 <br /> e. Drop in elevation = rock layer width (D2) times g Z,q2 3.03 3.57 9.05 4.99 9.88 3.95 5.88 8.33 1].54 15.91 <br /> percent landslope (C5) = 100 9 2.36 2.94 3.45 3.90 4.30 9.65 4.11 6.25 9.09 ]3.04 ]8.92 <br /> �� 1t X �0 % - 1�� _ �,�) ft ]0 2.3] (�.86�? 333 3.75 912 9.49 9.29 <6.67,) 10.00 75.00 23.33 <br /> f. Downslope mound height = depth of clean 11 2.26 2.78 3.23 3.61 3.95 9.26 4.48 h7.14 71.17 �7.65 30.9? <br /> sand for slope difference (G2e) at downslope 12 2.21 2.70 3.12 3.49 3.80 9.08 4.69 7.69 12.50 21.43 43.75 <br /> rock edge plus the mound height at the <br /> upslope edge of rock layer (G2b) <br /> 3.0 ft -+- !,� ft = y• U' ft <br /> g. Downslope berm multiplier based on percent land slop ^ � , <br /> !,•P-�) (see figure D-34) � " � <br /> h. Downslope width = downslope multiplier � Upslope W,;��,«fd, <br /> (G2g) times downslope mound height (G2� t��, <br /> (�,�f')x �..{���1 f t = ��,rl f t = � Ro�k Bed '�, <br /> � Ups ope Width(G2d) W�dw�D2� � Ups ope Width(G2d) <br /> i. Select the greater of G1 and G2h as the � -�-" Length(D3) ��� -�--f' <br /> downslope widt:h: ? °? ft � � <br /> ro Downslope Width(G2i)_�ft <br /> AbsorpHon Wid[h(F)_� <br /> j. Total mound width is the sum of upslope �� <br /> width (G2d) width plus rock layer width �_ ��'_ <br /> (D2) plus downslope width (G2i) Total Length(G2k)��/J _f, <br /> `� ft + u ft + _ ���> ft = y��� ft <br /> k. Total mound length is the sum of upslope width (G2d) <br /> plus rock layer length (D'3) plus upslope width (G2d) <br /> '� ft + �2 ft + =-r ft = `�{� feet <br /> ��' "} `�'��' ' � `' !'`�' Final Dixnensions: <br /> , , <br /> 4to X <) �t r���� <br /> I hereby certify that I have cornpleted this work in accordance with applicable ordinances, rules and laws. <br /> ./ �� ' � � ,.; '��� , <br /> L� �' �' �. <br /> � �- - - - (signature) �`7�_(license#) ��`�'�'�t�a�.? (date) <br />