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C. DOWNSLOPE BERM WIDTH �°�- �°""1� 1. 'If landslope is l�o or more, ..�,.�..,..�,:,,��:3::,�:;..,,�:, _ • ,. subtract rock layer width from adsorption width ,.�.r:�:;�::µ�; ^ ',:a,.-. :�<:.. . '� Rackl� � ',ps`��rK. to obtain minimum downslope berm toe c�►s.na :"s �.,�:: .,�.':�.,,�.�µ`_j� ..: .:::..:.....::.. 6'Topaoil a�. ft-��ft=,�feet a�s��_ 2. Calculate Minimum mound Size a. Determine depth of clean sand fill at U�`"�`� °orv�``"�'��' upslope edge of rock layer. �;�� n�,w�a� Separation 3' - �•� ft= l.� feet b. Add depth of clean sand for separation (2a) � at upslope edge,depth of rock layer(1 foot) to depth of cover (1 foot) to find the mound height at the upslope edge of rock layer; !.�� ft+'lft+ lft = 3,s� feet - � ' - c. Enter table with landslope and upslope berm �u�wca�, : � ratio.Select berm multiplier of 3,a-� ..�� ,.: " �-�'- . . d. Multi 1 berm multi lier b u slo e mound r� 'yU "��::��'�� R°a`e�a ''�°'�t,�"' 'v io�wa�n� �� P Y P Y P P ;.� :<: N, �� wwe� 1��'��. :�_ height to find upslope berm width: :-�� 5 r `- . . a ` ' l .� �s s �:�:,� ... .v 3•13 x 3•S -�_feet � . � � �� fi i�N�,r,�W ��:�,.��:,:,. ,�s� - �_ . �.�,� p ' i e y ♦ �Cf ... "+ �1Y+��('o 1...~tii j�: y �t �'��4 a Jh,(�(' (� �('i dM1 I 4wfi{7�i ; x e. Multiply rock layer width by a �i`�.:� �'� :� „.i'.;�;_, _.��;�:r� ` _ landslope to determine drop in elevation; � ��'� ? �"'; �� J_ ` � ..4 t� i'��n ''q N'(s.' . `f / � A � O/�{ �00-�t_feet �� t. .� T t 3 ;�„N.�'�'.��•' J'1 �o-11. Y { f. Add depth of clean sand for slope '` Y'� '�'"��u`:�`��'. �r 4� difference(2e)at downslope edge,to T��s��v� the mound height at the upslope edge of rock layer(2b)to find the downslope height; ,��,ft+�,_ft=�1.._feet . g. Enter table with landslope and downslope berm ratio. Select berm multiplier of �•a �- h. Multiply berm multiplier by downslope mound height to get downslope berm width: .�� x y•1 =�_feet BERM SLOPE MUL?�Lff1tS i. Compare the values of step G.1_L� and Step G.2h�_ i'°a �� Select the greater of the two values as the +��► �� a downslope berat width; a� feet j. Total mound width is the sum of ' ' s� • • • `• • • '• • 0 3.0 4.0 S.0 6.0 7.0 3.0 4.0 S.0 6.0 7.0 8.0 upslope berm(G.2d) i 3.0� a.i� s.� �s �.ss z.9i s.ss a.�b s.� e.sa �.ai width plus rock layer width(D.2) 2 3.�9 a.ss s.sa 6.82 s.�a �.ss s.�o a.sa s.sa 6.►a e.90 plus downslope berat width(G.2i); s s.�o a.sa s.sa �.�z a.ab �.�s s.r a.3s s.os s.�9 s.as �_ft+ 1 o ft+�,_ft= � feet a 3.ai a.�6 b.zs �.s9 9.n z� s.4s a.l� <.sa s.a� e.o� k. Total mound length is the sum of upslope S 3.53 5.00 6.67 8.3'7 I0.77 2.61 3.33 4.00 4.62 5.19 5.71 berm width(G.2d)plus rock layer length (D.3) -�--- 3•� �s� �.14 9.�s izo� z.s� a.�s� s.ss a.ai a.9s s.ai plus upslope berm width (G.2d); � 3.so s.s6 �.� �o.sa i3.r� z.as 3.0 3.�o a.a� a.�o s.i3 . �_ft+ l.� ft+�_ft= `6' feet 8 3•9s s.as s.ss i i.sa is.9� x.az 3.03 s.s� a.os a.a9 a.as a a -�- V� 'j' �� n� 9 4.1I 6.25 9.09 13.04 18.92 2.36 294 3.43 3.90 4.30 a.65 t0 4.29 6.67 1Q00 13.00 2333 2.31 ?86 3.33 3.73 a.12 a.aa Final Dimensions: �� 4.4E 7.14 Il.11 17.65 30.43 ZZ6 2�E 3.23 3.61 3.93 4,26 12 4.69 7.69 1230 21.43 43.�3 22l 270 3.12 3.49 3.80 4.08 y 3 X �,� ��f�.