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�;. D(JWNSLOPE BERM WIDTH s���- � co�«r <br /> 1. If landslope is 1% or more, ...:.:;::;,:°.:.::.: ..:.. ,.�., <br /> subtract rock layer width from adsorption width ����°='�� � ���.^���'�`�� <br /> ���.: <br /> �.,<�+:::�;..�•;.;: �a�.... :;,:�•::�:���.;-..::.:.,. <br /> Rak 1' � �... <br /> to obtain minimum downslope berm toe .;� aw►su►a •� ; , . ; ;;, , ', ; , _ 6.Topsoil <br /> ��.� ft-�ft=�_feet a�s��_ • <br /> 2. Calculate Minimum mound Size <br /> a. Determine depth of clean sand fill at v�i�waa, °o� `"�►�� <br /> upslope edge of rock layer: �� n a�,wa�n <br /> Separation 3' - I, S ft = �• s feet <br /> b. Add depth of clean sand for separation (2a) <br /> at upslope edge, depth of rock layer(1 foot) to depth of cover <br /> (1 foot) to find the mound height at the upslope edge of rock layer; <br /> /.S ft +'lft+ lft= 3•�� feet - 90'- <br /> c. Enter table with landslope and upslope berm �:: ups,io�Hr�aw <br /> ratio. Select berm multiplier of 3.2 3 . �.:` : � �. . �. <br /> Upslope Width''�Do e:�Pox4� Rocic Bed �a�ar�.r��.r rUpslope widch <br /> d. Multiply berm multiplier by upslope mound �_ :���,�•.�� war� .L7��+����, �� <br /> height to find upslope berm width: .�:°�� '�"�+�Q'= ��`'�`�� <br /> s �,� ,� , � „ ; �,� <br /> .-�-� x 3.S =J1_feet � a� ; , <br /> .:� �. r i.r. t�� n r �i r� <br /> e. Multiply rock layer width by a �,.r:� ,- ::. � <br /> „ - <br /> landslo e to determine dro u1 elevation; ° <br /> � <br /> p P � F r: ,�� ��a� <br /> �_x.�_%+ 100 =_ - - feet ' ' <br /> . ;� :.,,�; �;:; ` <br /> f. Add depth of clean sand for slope To��,�, i i a � <br /> difference (2e)at downslope edge,to <br /> the mound height at the upslope edge <br /> of rock layer (2b) to find the downslope height; <br /> �,S ft+ ,l� ft= 4. I feet <br /> g. Enter table with landslope and downslope berm ratio. Select <br /> berm multiplier of S.�� . <br /> h. Multiply berm multiplier by downslope mound height to get <br /> downslope berm width: <br /> .��. x y,I =�_feet BERM SLOYE MULT�LIERS <br /> i. Compare the values of step G.1�2_ <br /> and Step G.2h�_ � DOw'NSLOPE vescorE <br /> SI berm mukipliees tor various bam mnitlplias f�racious <br /> Select the greater of the two values as the �� ���h�� ����� <br /> downslope berm width; � Z, feet <br /> Total mound width is the sum of • a• s• • � � a• � � � � <br /> �' 0 3.0 4.0 S.0 6.0 7.0 3.0 4.0 S.0 6.0 7.0 8.0 <br /> upslope berm (G.ZCi� 1 3.09 4.17 5.26 638 7.53 2.91 3.85 4.76 5.66 6.54 7.41 <br /> width pltts rock layer width(D.2� Z 3.19 4.35 5.56 6.82 8.14 2.83 3.70 4.54 5.36 6.t4 6.90 <br /> plus downslope berm width(G.2i); 3 3.�o a.sa s.ss �.3z a.s� i.�s s.s� a.ss s.os s.�9 b.as <br /> �_ft+�o ft+ a� _ft= �feet a 3.ai a.�6 b.0 �.s9 9.�i z.ss 3.as a.i7 a.sa s.as b.ob <br /> iC. Total mound length is the sum of upslope S 3.53 5.00 6.67 8.5� 10.77 2.61 333 4.00 4.62 5.19 5.71 <br /> berm width (G.2d)plus rock layer length(D.3) 6 3.66 �a�� �.ia 9_38 is.m s.sa c .� 3.ss a.ai a.9s s.a! <br /> plus upslope berm width (G.ZCl�; � 3.80 5.56 7.69 10.34 13.73 2.48 3.12 3.70 4.23 4.70 5.13 <br /> �,_ft + ��d it + �� ft= �.Q_feet $ 3•95 s.ss s.ss ��.sa is.9� x.ai 3.03 s.s� a.os a.a9 a.ss <br /> a� .a- �� -}.. a� J/]� 9 4,l l 6.25 9.09 13.04 18.92 2.36 2.94 3.45 3.90 430 4.65 <br /> 10 4.29 6.67 10.00 IS.00 2333 2.31 ?86 3.33 3.75 4.12 4.44 <br /> Final Dimensions: 11 4.48 7.14 I1.11 17.63 30.43 2.26 2.78 3.23 3.61 3.95 4.26 <br /> l2 4.69 7.69 1250 21.43 43.75 2.21 2.70 3.12 3.49 3.80 4.08 <br /> 4 3 X Jo i d���. <br />