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G. DOWNNSLOPE DUM WIDTH <br /> 1. If landslope is 2.9 percent or less,basal width includes both the <br /> upslope and downslope dike widths, <br /> 12. Calculate minimum mound size based on geometery; <br /> a. Determine depth of clean sand fill at upslope edge of rock <br /> layer:Separation J. t7 feet <br /> b. Multiply rock layer width by landslope to determine drop <br /> in elevation;Slope Difference <br /> J x 6.%= 100 = _feet <br /> c. Add depth of clean sand depth of clean sand for u dLh <br /> separation at upslope edge (2a) to depth of rock layer to ZuYNrd Wdth <br /> rock depth and the depth of cover to find the total moundAwad, <br /> height at upslope edge of rock layer; ``" �-- <br /> " ft + 1 ft+ 1 ft= 3.0 feet <br /> d. Enter table on page bottom with landslope and upslope <br /> dike ratio. Select dike multiplier of 3 <br /> e. Multiply dike multiplier by upslope mound height <br /> to get upslope dike width: 3.0 x 3.t7 _ / / feet <br /> f. Add the depth of slope difference (2b) to the upslope <br /> height to get the downslope height 3.0 + , z- = 3.-z_ feet <br /> g. Enter table on page E-18 with landslope and downslope <br /> dike ratio. Select dike multiplier of 4.3 s, <br /> h. Multiply dike multiplier by downslope mound height <br /> to get downslope dike width: 3.2 x 4:3 _ _14 feet <br /> i. Mininmum mound width is the sum of upslope dike <br /> width.plus rock layer width plus downslope dike width; .::; ........ <br /> -feet R eeaw►di n::' ;U i� �ii;at► �' <br /> iN•N•N•N•N•N•N•N•• <br /> j. Subtract the Minimum width G•i from the AbsorptionBed•''''•' ''' `' <br /> width FA to find the Additional Downslope required for Rocku" '-� <br /> Absorption ::::::::::::::: : : •::: ::::::: : <br /> N••.Y.:•.:N:N ti; •••N:•.:•. <br /> lolm Dikwath-l-- <br /> k. Add the Additional Downslo e required for A `' ' ��• <br /> p eq Absorption::�::::::; � Fe'iii ivldrh'may_ <br /> to the downslope dike width and recalulate the Total •� <br /> Mound Width which is is the sum of upslope dike ��:::�::: :• :`;:';::::: <br /> width plus rock layer width plus downslope dike width <br /> I 1 .ft+_ 6 ft+ 1 q ft =,3,;feet {� TOW Length -� <br /> 1. Total mound length is the sum of upslope dike width` <br /> plus rock layer length plus upslope dike width;, " <br /> 11 ft + r t ft= 11),0) feet <br /> j q71 <br /> 31 4:1,,___ S..1 &1 7:1 3:1 4:1 5 ope W 7:1 8:1 <br /> S <br /> 0 w 3A 4.0 5.0 6.0 7.0 &0 4.0 5.0 6.0 7.0 8.0 <br /> 1 309 417 = 526 638 753 291 .' 3.85' 496 566 654, 7A1 <br /> 2 31� e :'_ 4.54 536 6.14 690 <br /> 3 33O` 4S4 &U-rr<. 732 8.86 - 275' 357. 43S SAB` 599 6.45 <br /> 4 3A3 4% 6.25 7.0 472 268 3.45 4.17 484 5.46 606 <br /> S 353 5Od 667 857 10.77 261 333 4.00 4.62 S19 Sn1 <br /> 6 366 526 714 938 1207 254 3M 3ffi 441 5.41 <br /> 7 380 5 56 9.64 1034 Mn 248 312 3.70 4.73 470 513 <br /> 8 396 e' SBB" + 833 r 1L51 ;1591 x2.42 3L03 3S/ 406 4A9 ' 488 <br /> 9 411 624 9A9,;- 13A/ <br /> 1892 =236 244 345 390`; 43D 4 66 yl <br /> 10 429 ' 667 IOA`° ]SAO 7333 231 ";, 286:' 333 395 4.12 4A4 <br /> 11 4.48' 714. _1111 1745, X43 2.26 278 3J3 3.61` 395 .. ._- 426. <br /> 12 4.P 7A9 1250 21.43 4335 2.21 2" 3.12 3.49 3.80 4.06 <br />