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. � . ' ��a�',�1L�- S ��f�
<br /> G. DOWNSLOPE BERM WIDTH S'°a'- c�""1•
<br /> 1. If landslope is 1% or more. .,._.;;.�.:•�,��.:�.:°x::�:-�::�.,
<br /> subtract rock layer width from adsorption width ' �"���'� �" �* �� �"r"''�: '
<br /> �,•.�f�rcu�:' .:! Rotk l j�' ri!;::Kr.w.`'p`;•
<br /> to obtain minimum downslope berm toe o�s.�a .,.:, .;.;,: ,`�:`,{>�:'�r:�;',:�^::�!<-;;.
<br /> ��., w..,,�..., 6-T�„u
<br /> a� ft-�_ft =�feet atural5oit_ 4`'�
<br /> 2. Calculate Minimum mound Size U� w�dr� "��'
<br /> a. Determine depth of clean sand fill at �
<br /> upslope edge of rock layer: x�wa�, „�,�,��d�,
<br /> Separation 3' -�.� -� �= J ,� 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 /> ,J.v ft +'lft + 1R = 3; J feet � a
<br /> c. Enter table with landslope and upslope berm vp8io�v�r,a�;�: .
<br /> �. . �.�.�_ �
<br /> ratio. Select berm multiplier of �•�-�-s ' v��, �waw �Q° :?aY�� �� '���'�1���. �Ups►ope w�acn -
<br /> d. Multiply berm multiplier by upslope mound ,.,.�_ �� �*,�� wtaw ��_���
<br /> 3 � '..; "��1r:, �' ,� :..� �;"� ,"�1_"
<br /> height to find upslope berm width: � �� � -� - ,.� -
<br /> � l`"' �� � 7 t� Q���)t4�t(f'�ja*, iY)t�''���x�� `iFF�,ti(�!�,���
<br /> 3.�S x 3.O =�feet � _ . .
<br /> r y°• j i t 1,�K.«�}r r f J n(f, M��f�}�1
<br /> e. Multiply rock layer width by � � � : �-, , ,;� ':� � ,~ ~ ' :
<br /> landslope to determine drop in elevation; � .. ° °o i"�°�"�d`��� :
<br /> Abso hon Width..�
<br /> , /0 x_�%+ 100 -�_feet ` r : , , � ���� ;,., a.:,�..
<br /> �
<br /> , � r ,; �; .. r
<br /> �
<br /> . : � ... .,��J.S •'.. � 1' t:�1 '. •��
<br /> .:.•..... . •....;. ..., • . ..,.. , . .._
<br /> f. Add depth of dean sand for slope � ro��,�, � ,�
<br /> difference (2e)at downslope edge, to � �" ���'"�, ��, ;- �,
<br /> `-r�.��� � - :;� F`�'�'� ,�;
<br /> the mound height at the upslope edge ;;� y � �;;� °. ��
<br /> � -.� ,� - - � :u� , �
<br /> of rock layer (2b) to find the downslope height;�` �� ' ,����'�' n , `- .� , �'
<br /> �,0 ft +�ft= .�_feet �� ��"
<br /> g. Enter table with landslope and downslope berm ratio. Select
<br /> berm multiplier of y •� � •
<br /> h. Multiply berm multiplier by downslope mound height to get
<br /> downslope berm width:
<br /> ��x 3,y -,1�feet BF.RMSLOPEMULT�LgRS
<br /> i. Compare the values of step G.1._1�_
<br /> � and Step G.2h�_ t�a p���r��«� eam mmtl�puas°%.�ri«u
<br /> Select the greater of the two values as the �� ������ °���'�°�
<br /> downslope berm width; � � feet
<br /> � j. Total mound width is the sum of o s.o a.o s.o 6.0 �.o s.o a.o s.o 6.0 �.o a.o
<br /> upslope berm (G.2d) i 3.09 a.i� s.z6 6.38 �.ss �.9i 3.as a.�b s.� b.sa �.ai
<br /> width plus rock layer width(D.2� 2 3.19 4.35 3.36 6.82 8.14 2.83 3.70 4.54 5.36 6.14 6.90
<br /> plus downslope berm width(G.21�; 3 3.30 4.54 3.88 7.32 8.86 2.'IS 3.5'/ 4.35 3.08 5.79 6.45
<br /> t O ft+L_ft+ ' _ft= �.�feet a 3.ai c 4:�6 �.0 zs9 9.n z.�a��� a.�� a.aa s.aa b.o�
<br /> ]C. Total mound length is the sum of upslope S 3.53 5.00 6.67 8.57 10.77 2.61 333 4.00 4.62 S.i9 5.71
<br /> � berm width (G.2d) plus rock layer length(D.3) 6 3.66 s.z6 �.ia 9.�s izm z.sa s.� a.ss a.ai 4.93 s.ai
<br /> � plus upslope berm width (G.2d); � 3•so s•s� �.� �o.� i3as �.aa 3.ix sao a.z� a.�o s.i3
<br /> _,(„Q,_Et+��ft +.1.Q._ft= ��feet $ j•95 s.ss 8.33 ii.sa is.9i i.az s.os s.s� a.os a.a9 a,ss
<br /> � `� } �� � �� ��� 9 4.1 l 6.23 9.09 13.04 18.92 2.36 2.94 3.45 3.90 4.30 4.65
<br /> E �� 10 4.29 6.67 1Q.00 13.00 23.33 2.31 1.86 3.33 3.75 4,12 4.44
<br /> Final Dimensions: �1 4.48 7.14 ll.li 17.65 30.43 2.26 278 3.23 3.6! 3.95 4.26
<br /> l2 4.69 �.69 1250 21.13 43.95 2.21 2.70 3.12 3.49 3.80 4.08
<br /> X
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