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�-zo <br /> . DOWNSLOPE DII�WIDTH <br /> . If landslope is 3% or more, subtract rock layer width from . <br /> adsorption width to obtain minimum downslope dike toe � <br /> � a� ft- �� ft =�ft <br /> . . Calculate mound height at edge of rock layer on downslope <br /> side; � ' <br /> a. Determine depth of clean sand fill at upslope edge of rock •�•*��-� <br /> layer: Separation �.� feet � �� <br /> b. Muldply rock layer width by landslope to determine drop - <br /> in elevation; Slope Difference ��••�.a►•��»_��* <br /> ..,�._,�.._._ <br /> �o x � %+ 100 = • :� ft �-_• <br /> c. Add depth of clean sand depth of clean sand for <br /> separation at downslope edge to depth of rock layer to ,. <br /> depth of soil backfill to get mound height at downslope <br /> edge of rock layer; <br /> a -S ft +. �. � ft + -S ft+ - � ft = �+•� ft _ <br /> d. Enter table on page E-18 with landslope and downslope <br /> dike ratio. Select dike multiplier of s� <br /> e. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: �.S x � = a�_ft <br /> g. Compare the values of step G.1 and Step G.2.f. Select the <br /> greater of the two values as the downslope dike width; <br /> �.3 fE�Et xo��.n..�e�rce� <br /> h. Calculate upslope dike width using upslope mound <br /> height and upslope dike multiplier from page E-18; <br /> �1•(� X 3.33 =��� u�ao�.vw�n cn� <br /> i. Total mound width is the sum of upslope dike width plus °o"�°Ped1�wb�hc`' <br /> rock layer width plus downslope dike width; <br /> �_ft +�_ft + a�; ft= ��ft <br /> 3. If landslope is 2.9 percent or less,basal width includes both the <br /> upslope and downslope dike widths. <br /> a. Calculate downslope dike width using steps G.2.a. <br /> through G.2.f; feet <br /> b. Calculate upslope dike width using upslope mound <br /> height and dike mulHplier from Page E-18; <br /> x ft= ft <br /> c. Add downslope dike width to upslope dike width to rock <br /> layer width <br /> ft+ ft + ft = ft <br /> E-18 <br /> �� ps� <br /> 3:1 1:1 51 61 7:1 J:1 �:1 S:1 6:1 7:1 t:i <br /> 1L�lope <br /> 0 3A �A SA 6A 7A 3A IA 5A 6A 7A �A , <br /> 1 3A9 �.17 526 63S 7S3 2.91 3d5 �76 5.66 65� 7A1 <br /> 2 3.19 !3S SS6 6.e2 !.1! 2.K! 3.70 �54 536 6.1! 6.90 <br /> 3 330 ISI 5� 732 6J6 2.75 3S7 435 SAd 5.79 6J15 <br /> 1 3A1 �76 6.75 7d9 9T2 2.66 3A5 4.17 �.6� SA6 6A6 <br /> S 353 SAO 6b7 157 10.77 2b1 333 �AO �.62 5.19 571 <br /> 6 3bb 5�6 7.11 936 1207 ISI 313 3A5 �A1 �.7! SA1 <br /> 7 3d(1 556 7.69 103� 13.73 2M 3.12 3.70 �13 170 5.13 <br /> e 3.95 S� s3J 115� 15.91 2.12 3.Q� 3S7 �.� 4A9 4A� <br /> 9 �.11 6.75 9.OD 13A1 1s.92 236 I.91 3A5 3.90 �J� �.65 <br /> �o �� 6.� �o.o �s.00 �as ��� z� as� 3.�s �.0 �,u <br /> 11 �A8 7.1� 11.11 17b5 30.43 2�6 2.7e 3]3 3b1 3.95 426 <br /> 12 !b9 l.6A 1250 21A3 �3.75 221 270 3.12 3A9 3J0 �.OS <br />