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'G. DOWNSLOPE BEIZM WIDTH s���:- co�«i• <br /> 1. If landslope is 1% or more, . � <br /> subtract rock layer width from adsorption width , : � <•• - • �• ��y'� .�'. <br /> ,. . . ,.., ._ <br /> Rockl' �'Q ;. <br /> to obtain minimum downslope berm toe c��.��s.�,a . . '�'^�-;�' �. �� .. . <br /> ' 6"Topwil <br /> 2.0 ft - � ft = _� feet �nu.�sou 1. S' <br /> 2. Calculate Minimum mound Size � <br /> a. Determine depth of clean sand fill at �P''o��vidw °°`"'v° `"�'dw � <br /> upslope edge of rock layer: RO��d� n� n Width � <br /> Separation 3' -�� ft = 1, � 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 /> 1,�, ft + lft + lft = --3� �2 feet <br /> c. Enter table with landslope and ups� e berm vP P�rv�aw �, <br /> ratio. Select berm multiplier of � � = � <br /> ' .Up I Width�:QoS��s°��'� Rock Bed 7o.da��.:;� .Upsl pe wdth , <br /> d. Multiply berm multiplier by upslope mound I .��� .a o�Q v`t "�d� -�-�`Q a'�i � , <br /> �oo.oQ°:� Len �� S;.a a�o-e <br /> � ..d c o c ��. � o Q��Q�,'p. <br /> height to tind upslope berm width: � � � . � . � <br /> �3,33 x 3�2 = _� feet ' � � � <br /> � ; <br /> e. Muldply rock layer width by s � � �� . ' <br /> � <br /> landslope to determine drop in elevadon; F `� �� n°ob�tion w`"iiac`�n� . � <br /> /D x S % + 100 = . S feet r" ,�.:. , rr- , n. „ � i <br /> �, :, . <br /> f. Add depth of clean sand for slope roe1�,�, <br /> difference (2e)at downslope edge, to <br /> the mound height at the upslope edge <br /> of rock layer (2d) to find the downslope height; <br /> , �ft + 3,R ft = 3� ? feet <br /> g. Enter table with landslope and downslope berm ratio. Select <br /> berm multiplier of 5:G'G� <br /> h. Multiply berm multiplier by downslope mound height to get gERMSLOPEMULTIPLIERS <br /> downslope berm width: <br /> �(�X��_ /g feet Laod DOWNSLOPE UPSLOPE <br /> 1. �UIR are the values of ste Ci.l � � Slo berm multlp8ers for��rioas berm mdtlpikrs for�arious <br /> P P in 9� berm slope raHas berm sbpe nda <br /> and Step G.2h /8� <br /> Select the greater of the two values as the °• a• <br /> downslope berm width; / feet o a.o a.o s.o e.o �.o a.o a.o s.o b.o �.o s.0 <br /> j. Total mound width is the sum oE � 3.0� a.i� s.�e 6.38 �.ss z.9i �.ss a.�b s.� e.s4 �.�i <br /> upslope berm (G.2d) = �•i9 4•�s s.sb e.ax s.ia 2.83 3.�o a:sa s.�e 6.ia e.�� <br /> width plus rock layer width (D.2) � 3.30 a.sa s.sa �.3z a.sb z.�s - 3.s� �.3s s.oa s.�9 �.as <br /> d 3.41 4.76 613 7.89 9.72 2.68 3.a3 d.17 1.Sa �.J6 n.ub <br /> plus downslope berm width(G.2i); s 3.ss �0�6.67 a.s� io.n 2.bi 3.3 .�.00 a.bx s.iv s.;i <br /> �_ft +1Q_ft + ��ft - ��feet 6 �,� s.zb �.ia 9.3s iz.m x.s� 3.23 3.ss l.ei .�.9; s.�� <br /> k. T'otal mound length is the sum of upslope � 3.ao s.sb 7.69 io.3a i3.�3 z.�s 3.iz 3.�0 �.z� ;.�o s�: <br /> berm width (G.2d) plus rock layer length (D.3) s �.9s s.ss 8.33 ��.sa �s.vi Z.az 3.03 3.s� �.os 1.ay ��n � <br /> plus upslope berm width (G.2d); y +.ii e.=S 9.09 i�.oa ia,92 1.36 z.9a 3..�s �.vo 1.30 �.o= i <br /> � tt +�� Et + _L ft = � feet �0 �t.29 6.67 10.00 13.00 23.33 ?.31 1.86 3.)3 ?.�S 1 I? i»-t � <br /> I 1 �.48 7.14 �I.I 1 17.63 30.43 2.26 2.78 �.33 3.61 3.95 a=e I <br /> � 12 �t.69 7.69 12.50 21.43 43.75 2.21 2.70 3.12 3.J9 3.80 ll�h ! <br /> Final Dim esions. o►e:The produet of�he muluplier end the hei�ght rcsulu in ihe honzonW disunce io where me � <br /> rm meeu the o�ginal lond slope.Example:Height u upper edge of rock Iayer u 3.0 teet.nxkI <br /> � 1� ayer is 10 feet wide.land slope ia 696 and bertn tlope tatio is 4:1.Upslope berm widU��s 1.1?c I <br /> 3 X � 'y .0�9.7 ft:helsht at lower edse ot rock layer is 3.0+10 z U.6.3.6 R and dowrolope berm w iJu j <br /> �5.26x3.6� 18.9ft 1 <br /> E <br />