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G. DOWNSLOPE DIKE WIDTH <br /> 1. If landslope is 2.9 percent or less,basal width includes both the <br /> upslope and downslope dike widths, TY) /4-‘ ›.-z6() ArziAis...... <br /> . <br /> 2. Calculate minimum mound size based on geometery: &`oc?.01,f/i- <br /> . <br /> a. Determine depth of clean sand fill at upslope edge of rock . <br /> layer: Separation I. d feet <br /> ' b. Multiply rock layer width by landslope to determine drop - <br /> in elevation; Slope Difference . j <br /> J x % + 100 = Q, o� feet ��� "� <br /> grina <br /> c. Add depth of clean sand depth of clean sand for Uri.,"WOO. ', <br /> ,.d <br /> MI <br /> separation at upslope edge (2a) to depth of rock layer to-� R.l45e4 a <br /> 1.44 <br /> rock depth and the depth of cover to find the total mound 7 li <br /> �'/d• <br /> height at upslope edge of rock layer;• <br /> --kri <br /> 1' 0 ft + 1 ft + 1 ft = 3,G feet igiii <br /> . d. Enter table on page bottom with landslope and upslope .Q <br /> p � `�•. oZ oy <br /> . dike ratio. Select dike multiplier of 3. ?G `(� <br /> e. Multiply dike multiplier by upslope mound height <br /> to get upslope dike width:370 x 3,0 = /1.0 feet <br /> f. Add the depth of slope difference (2b) to the upslope <br /> height to get the downslope height O. +.7, n = 3,a feet • <br /> g. Enter table on page E-18 with landslope and downslope <br /> dike ratio. Select dike multiplier of y. 3 5- . <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike wid th:.9,3' x 3.Q = /'f feet <br /> I. Mininmum'mound width is the sum of upslope dike /4- 7 --- 1 <br /> widthplus rock layer widthnslodike width, : ::::;.:: �:: :: :: ;:::. <br /> � y plus dow `��e � .;, . ,..:, .•: :.;:;.: <br /> /1.0 ft + /0 ft + /5/ ft = . 'rrr li:�b :63 f f:i::: <br /> feet R« tire`widi6'••I� •; � � d�+.� f•':••'•. <br /> j. Subtract the Minimum width G.i from the Absorption :a`,.:�,.'••:••,.•• : :;r::..•::;.,-: '' '.:` .'. <br /> width F.4 to find the Additional '` � "' '`''`'' <br /> Downslope required for .; • ' .. 4-, <br /> Absorption :`:. .'•::.','.`. :.. .•:....,::.:••••::•:::-::': :: <br /> 2- ft - 3S ft = -/6 feet Ur4bpUkeWidth >'/'� `;:: 1:. <::<:,{.UpbpcDfrw th <br /> k. Add the Additional :,. :.�. .. ...r. <br /> Downsloperequired for •:<:: '` :'.•''('is {•'' r'{. ;' . ':{.... <br /> Absorption ,• :.:•'� :::::{: .•: :•� : •. :• :.�:::::�•'= ,. ,::;:: <br /> to the downslope dike width and recalulate the Totalp • '•'`:'''`..' liownslope''Dlke'Width f - <br /> Mound Width which i the :f' ` ':::,'::' „.„..,..,..,..,...,......„•,...,.:%..::::::. <br /> s is sum of upslope dike �'' '�•'' •'' f•'' <br /> width plus rock layer width plus downslope dike width <br /> // ft + /O ft + / (/ ft =3 ,S_ feet 1 Total Length <br /> 1. Total mound length is the sum of upslope dike width <br /> plus rock layer length plus upslope dike width; 3-4/f <br /> If ft + 5 ft + // ft = 2 7 feet • <br /> da - /4/ -t 6-s-p-4- i/. S3 . <br /> L wnsT Ups <br /> 31 4:1 SI °P� 4c1 7:1 3:1 /.1 l<�0 141 7:1 1:1 <br /> %.tope S <br /> 0 3A 4.0 1.0 6.0 7.0 3.0 4.0 5.0 40 7.0 1.0 <br /> 1 3.00 4.17 5.26 6.31 733 2.11 3.13 1.76 S.66 4.31 741 <br /> 2 3.11 4.33 134 6./2 1.14 213 3.70 634 336 6.14 1.10 <br /> 3 _ 330 431 531 732 1.66 2.75 357 4.33 5.01 5.71 6.45 <br /> 1 341 1.76 &2S 7.11 1.72 7.61 3.43 4.17 4.14 5.44 4.06 <br /> • <br /> 5 353 5.00 4.47 1.37 1077 2.41 3.33 4.00 4.62 3.1, 3.71 <br /> 6 244 5.26 7.14 131 12.07 231 3.23 3.113 4.41 4.93 1A1 <br /> 7 310 554 7.44 10)4 1377 2.46 3.12 3.70 1.23 4.70 5.13 <br /> 1 7.15 1.1$ 1.33 1134 15.11 1 Q <br /> 1 . 4.11 6.25 1.01 3.04 3.47 3.00 4.49 413? <br /> 13111 16.12 2.36 2.14 7.13 3.10 430 443 <br /> 10 4.21 -6.0 10.0 • 13.00 2333 2.31 2.66 3.33 3.73 4.12 4.41 <br /> 11 431 7.11 11.11 17.43 30.43 2.36 2.71 3.23 3.41 3 9S 421 <br /> 12 . 444 ;739 1230 2143 43.73 2.71 2.70 3.12 141 310 415 <br />