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G. DOWNSLOPE BERM WIDTH si��: `�=' �, caY�r i� <br /> 1. If landslope is 1% or more, <br /> ibtract rock layer width from adsorption width , t R«�1 �-�o p y <br /> .c�"�i. ,"'���� <br /> to obtain m i n i m u m d o w n s l op e b erm toe - u{ aean sand.� . <br /> I ;j feet ` �����P��.' <br /> _ - ft _ r ; ft = atural Soil `� • <br /> 2. Calculate Minimum mound Size <br /> a. Determine depth of clean sand fill at u���wa�, Downslope Width <br /> upslope edge of rock layer: Ro�wa�n Absorption Width 1 <br /> Separation 3' - �� �=�= ft = I� '^ 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 = � feet � -� - <br /> `. <br /> c. Enter table with landslope and upslope berm . . uPsioPe w�atn . <br /> ratio. Select berm multiplier of ?.�� -. ' `� ` <br /> ;UpslopeWidth :o°oe'.�pa��.� RockBeti ?o.oea.�oo :UpslopeWidth <br /> d. Multiply berm multiplier by upslope mound __ Qa< wd�n ;� ,a <br /> � 7�e�6opOoe. ,, o�QGo�6Db D <br /> height to find upslope berm width: 4�t ,`` , Qa;n`oa°:ap o p�`a���°40'ao D�� <br /> ; x = ` % feet 3 ;: <br /> e. Multiply rock layer width by � . : _ ,: <br /> l an d slo e to determine dro in elevation; �° ° ��lo�w�a�n �� � <br /> P P Absorption Width�Z <br /> x �� %- 100 = • Y: feet <br /> _ . ._.. , <br /> ,;, ._ <br /> _. <br /> f. Add depth of clean sand for slope ` � ' <br /> Total L.ength /1 1 <br /> difference (2e)at downslope edge, to <br /> �.e mound height at the upslope edge <br /> of rock layer (2b) to find the downslope height; <br /> -� ft + `� ft = "� feet <br /> g. Enter table with landslope and downslope berm ratio. Select <br /> berm multiplier of �_ � <br /> h. Multiply berm multiplier by downslope mound height to get <br /> downslope berm width: <br /> x �;.�<� - -� feet BERM SLOPE MUL'TIPLIERS <br /> i. Compare the values of step G.1 i '> <br /> and Step G.2h a=- r.�a DOWNSLOPE UPSLOPE <br /> Slope berm mulapliers for varioiss berm multipliers far various <br /> Select the greater of the two values as the ���� ��o��d� �S�aa�ti� <br /> downslope berm width; - feet <br /> j. Total mound width is the sum of � a� 5� � ' � 4� 5� : ��� a:� <br /> 0 3.0 4.0 5.0 6.0 7.0 3.0 4.0 5.0 6.0 7.0 8.0 <br /> upslope berm (G.ZC�� I 3.09 4,17 5.26 6.38 7.53 2.91 3.85 4.76 5.66 6.54 7.4! <br /> width plus rock layer width (D.2� 2 3.19 4.35 5.56 6.82 8.14 2.83 3.70 4.54 5.36 6.I4 6.90 <br /> plus downslope berm width(G.2i); 3 3.30 4.54 5.88 7.32 8.86 2.75 3.57 4.35 5.08 5.79 6.45 <br /> ft + ' ft + -� ft = '- 1 feet 4 3.41 4.76 6.25 7.89 9.72 2.68 3.45 4.17 4.84 5.46 6.06 <br /> k. Total mound length is the stun of upslope S 3.53 s.00 6.67 s.s� �o.�� z.6i 3.33 a.00 a.bz s.i9 s.�i <br /> berm width (G.'Lct) plus rock layer length (ll.3) b 3.0o s.26 �.�a 9.38 �z.o� 2.sa 3.23 3.ss a.a� 4.93 s.4� ' <br /> plus upslope berm width (G.2d); 7 3.80 5.56 7.69 10.34 13.73 2.48 3.12 3.70 4.23 4.70 5.13 <br /> � ft t � � ft + `-1 ft - �"_ feet $ 3.95 5.88 833 1I.54 I5.91 2.42 3.03 3.57 4.05 4.49 4.88 <br /> , � _, . - ��_,, 9 4.l( 6.25 9.09 13.04 !8.92 2.36 2.94 3.45 3.90 a.30 a.65 <br /> l0 4.29 6.67 10.00 15.00 2333 2.31 2.86 3.33 3.75 4.12 4.44 <br /> Final Dimensions. 11 4.48 7.14 Il.11 17.65 30.43 2.26 2.78 3.23 3.61 3.95 4.26 <br /> 12 4.69 7.69 12.50 21.43 43.75 2.21 2.70 3.12 3.49 3.80 4.08 <br /> � � � X ��:� � ��',:��, <br />