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r � r ��� COV![1�
<br /> G. DOWNSLOPE BERM WIDTH ,i
<br /> 1. If landslope is 1% or more, �M�} •••���:;:.��, ��. �
<br /> subtract rock layer width from adsorption width ��'.��'�' ��` k'� �
<br /> '+,�.�Y•x>�� Rodcl' I � Mi �. c�;�1r�.' +
<br /> to obtain minimiur► downslope berm toe �+�+ h����'� '��:�;r'� �"-��`-'�'�'
<br /> ' ':,�''�t7`.''�.a• b'T�
<br /> �_�_��=J2_feet ���
<br /> 2. Calculate Minimum mound Size ��,
<br /> a. Determine depth of clean sand fill at U�'= �-
<br /> upslope edge of rock layer: "°dio'" "�°�N1d�'
<br /> Separation 3' - a_�.�= l.0 feet
<br /> b. Add depth of clean sand for separadon(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 /> =ft+'lft+ lft= 3.0 feet ._ .:....- �. � . . . .- . .
<br /> c. Enter table with landslope and upslope berm -r�" �.;' :�:4uas����+'. .
<br /> ulti lier of 3.3 3 ':: �` ;;�,•..`, ti�;"r,s � :
<br /> ratio. Select berm m p . :.: .�....`..:-:,::�{:��'::� ' :. .
<br /> .:;vps1 Widw:k�o j � ,. Kxk Bed `� �upslope Wiath .
<br /> d. Multiply berm multiplier by upslope mound � 7. ;.. www ' "� �� .::.:.
<br /> r ' '�-',.ti:�u�4. � , � � L , i r.�� .'.
<br /> ght to find upslope berm width: `�o �":y:.,,.�r'� .�:frL�,, J N� '•\.Y.
<br /> L' "7• �Y^�!1�! �ti�' ��!„�
<br /> hei � �. ..a•i.:")�,:ati•�a� n,�ai�.' y, �"Nt a•t�N'� � rr '` a ,',L"'.�'4';�,�y,'t;';•,•�,'.':;.
<br /> 3.-33 x 3,0 = /D feet � � .�.,:�;.•a;����•����'b��, '�M .' 'S����Y���'�,,�.,�,, y.
<br /> �� �.r.: �r v t','�:�:;+'l�f'�'v�i�����w a N S �aa t:�. n ���, �� ;
<br /> e. Multiply roc _ , .,_.. :�,.,�..... .4 ,.r... �: f M t :
<br /> k layer width by � � �, ". ,� °' `� '• �' "�.': .
<br /> � { ��t., ;,yi::*:f+`{.f�l'�'�{•:,�r�� l�d+.�7}�!'C!i'f.i'•�r"�,y!~.�;y:f�:'a•....
<br /> {;e.• , �' , „� �.;.!�1,; �p�y�� �o a �S�ea�=
<br /> landslope to detemnine drop in elevation; `' ;; t���f:,;:��.;�.; ,�„�tl,�,w�a�_ . 'Y� ,{�
<br /> �/� /� ioo ��.� ', •c.fii ��•t i�'�I��.1.�. "�4:` �tY1 4« ?(Nyt'iu,.. �l� �/� ..ry�:. .
<br /> �0 ,���f w'Y t�� 'w.:Y.f f� �Y� 4 �f y?M �'�"r�i y . .,
<br /> + feet +. �,-• ,� � ���....,•� �,:...�.3;.
<br /> , �� y�
<br /> �~��� ..�4.Ii:���:.e16�1,.•i1lJ�i4.f�/f;pylAlSlf,r.�7N�1' M.y�.�.'I�w:�.�'.�..�.ra�•'�G^i��,� ,•::;+'
<br /> f. Add depth of clean sand for slope �.��,�L,
<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 /> 3, o ft +_�ft= 3.��feet
<br /> g. Enter table with landslope and downslope berm ratio. Select
<br /> berm multiplier of s•o .
<br /> h. Multiply benn multiplier by downslope mound height to get
<br /> downslope berm width:
<br /> _x 3•� = 1� feet sa�wc s�.or�Muc.ari.a�s
<br /> i. Compare the values of step G.1�2_
<br /> and Step G.?h ��,-�s� ao' �° e���t��om e�moiaP�%r.�
<br /> Select the greater of the two values as the � �+���d� °'�''°p°"na
<br /> downslope berm width; a o feet
<br /> j. Total mound width is the sum of o s.o 4.o s.o a.o �.o s.o 4.o s.o e.o zo s.o
<br /> upslope berm(G.2d) � �.� ..�� s.xa 6.ss �.ss �.9� s.as 4.�6 s.�a a.s� �.ai
<br /> width plus rock layer width(D.2) 2 s.i9 4.�s s.se a.az s.�4 �.as a.�o 4.s� s.sa s.�4 a.�o
<br /> plus downslope berm width(G.2i); s �.so 4.s� s.aa �as a.aa �.�s �.r 4.ss s.oa s.�9 a.as
<br /> 1 o ft+ ��o ft+ ,�_ft= ,�� feet 4 s.4i �.�a a�s �.a9 9.n 2.�a s.�s �.�� 4.s. s.� a.oa
<br /> k. Total mourtd length is the sum of upslope s s.ss �s oo? �.6� e.s� �o.n �.6, a� 4.00 4.6s s.�9 s.��
<br /> berm width(G.2d)plus rock layer length(D.3) s. 3•� s.�a �.i4 9aa izo� zs4 s.s3 3.as 4.4i 4.93 s.ai
<br /> plus upslope berm width(G.2d); � s.ao s.s6 �.69 ia� �s.» �a s.�z �.�o ,.� .ao s.��
<br /> �O �{.} 4. � �{+�{t= _SeL__feet a 3.95 3.a3 a.33 11.34 lS9l 2.42 3.03 3.57 4.OS 4.49 �.8a
<br /> ,a.7 t � 1 ,} �O �1 9 4.1 t 6.23 9.09 13.O�t 1l.92 136 2.94 3.43 3.90 4.30 4.65
<br /> 10 4.29 6.67 IQ00 13.00 2333 Z.31 tE6 3.33 3.73 4.12 a.a4
<br /> Final Dimensions: �1 4,4E 7.14 Il.li 17.65 30A3 Z.26 17E 3.23 3.61 3.95 4,26
<br /> 1� 4.69 7.69 13.50 11.�3 �13.93 Z.21 Z70 3.t1 3.49 3.E0 4.08
<br /> �y p X '� 1 ���.
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