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G. DOWNSLOPE BERM WIDTH s��__ �����1 <br /> l. If landslope is 1% or more, � <br /> :ubtract rock layer width from adsorption width � .o- �.e� _ 'ti <br /> t Rock I' �o�'p` <br /> to obtain minunum downslope berm toe ae�,sa„d <br /> 2� ft - � ft = �_ feet atural Soil 6:Topso� <br /> 2_ Calculate Minimum mound Size <br /> . a. Determine depth of clean sand fill at u�io�w�dw �o.n,5io�w�a�, <br /> upslope edge of rock layer: r�w,d�, q�rpbon 4Yidth <br /> Separation 3' - �- ft = ( 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 /> _� ft + lft + lft = 3 feet <br /> c. Enter table with landslope and upslo,pe berm UpS�oPe w,d�n � <br /> ratio. Select berm multiplier of `'I . ; <br /> d. Multi 1 berm multi lier bv u slo e mound � U Sio e W�dth �Doao00DDo,�Rock Bed �Oe�O9D o�o D u 5io w;a�, <br /> PY P � <br /> height to find upslope berm widtP: P p p aD°'°�°o�L w'd�' ��e�a,00aD e p � <br /> � Qao4oa Qa p�� Q a aoao. <br /> � X_�_ � feet � ° 0 P PpDU�Dv o o Qo�Qo D��H <br /> e. Multiply rock layer width by � � <br /> landslope to determine drop in elevation; � Downslope 4Yidth � <br /> �� Abso tion Width � <br /> �_ X S% = 1�� = �-7 IEet � 1 <br /> f. Add depth of clean sand for slo�e - - � <br /> difierence (2e)at downslope edge, to T":z'�n�r: <br /> `he mound height at the upslope edge <br /> �f rock layer (2b to find� downslope height; <br /> .3.[� ft + ft - ��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 /> ���ope berm wid� <br /> _.�,�_ _ � feet BERM SLOPE MULTIPLIERS <br /> i. Compare the value step G.1� <br /> and Step G.2h r 7,� Land DOWNSLOPE UPSLOPE <br /> Slope berm multipGera for various betm mWtipliers for various <br /> Select the greater of the two values as the �o�� be�,�,a���� ��,o�nti� <br /> downslope berm width; /7� 5 feet <br /> j. Total mound width is the sum of � ' ' ' ' ` ' ' ' ' � 4 � S � 6:i 7 � s � <br /> upslope berm (G_2d) ° � �� s-o �o �a ?0 3_o c o �.e �_o ;_r, s_a <br /> width plus rock layer width (D.2) � �� � �� 5?6 638 7.53 2.91 3.85 4J6 5.66 6.54 7.41 <br /> � 3 19 4 35 5-56 6 82 8.14 2.83 3J0 4 S4 536 6 14 6-90 <br /> plus do�vnslope berm width(G_2i); ; ; � 3�, , �� �, ,, ��; ,�� , <br /> �'� �{} ��� -, � � _-�Sb ;3� R_86 _ �= =Ob �79 6-. <br /> ��_ ff �- _�_ ft t � " - _�_.�jeeT � j :JI �76 6?S 7�S9 97? 2.6g 3a� 4 Ii sb4 4a6 GOti <br /> k. TOtd� II10LI.I1C� IeI1�}1 IS �1e Sl1ITl Ot ll�S10�7E' S �.53 S W 6_67 8.57 10.77 2.61 333 4_00 4.62 5 19 5.11 <br /> berm ti��id th (G2d) plus rock laver len�th (D_3) c� � �c,c, s�c; � ;a 9;s ,�o� �s-: 3.� 3.ss a�� o v: s a, <br /> plus u s ��e berm width d); % � 3ao s.sc, �_69 io_3a r,.�3 z.ax 3.iz 3_�o a_�3 a.�o 5.�3 <br /> �_ ft t 6� ft t����_ feet g 395 5.88 8.33 I I.S4 I5.91 2 42 3.03 3-57 4.05 3 49 4.8g <br /> ��� 9 9 11 6.25 9 09 13.04 18.92 2.36 2.94 3.45 390 a 30 4 65 <br /> _ ! 10 a?y �,�;7 10t� !S_00 2331 231 ?R6 �3� ;7� a1� aa: <br /> j �Jln�� �11T1��.`'S�QnJ. ,. . ;a�. ,- I; ,. . 1:1.`_ �i�"' ' - -� --.. ._ ..r;! . . :i. <br /> ; ; .. .. , ,� : �. . : i <br /> i "� � � 1= � :by 7 L'� 1__SiJ :l ti3 43J� � �._1 ?7C 3 i� 34v 3_80 4 0fi <br /> 1 � <br /> X _ � <br />