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1. If I~dslope is 3% or more, subtract rock layer width from <br />· adsorption width to obtain minimum downslope dike toe for <br />absorption: r If; ft-/o ft=_=-L_feet <br />I <br />2. Calculate minimum mound size based on geomete_ry: <br />a. Determine depth of clean sand fill at upslope edge of rock <br />. layer: Separation / feet - <br />b .. Multiply rock layer width by landslope to determine drop <br />in elevation; Slope Difference <br />lo x J % + 100 = 6, 3 feet <br />c. Add depth of clean sand depth of dean sand for <br />separation at upslope edge (2a) to depth of rock layer to <br />rock depth and the depth of cover to find the total mound <br />height at upslope edge of rock layer; <br />( _J_ ft + 1 ft + i ft = 3 feet , <br />· d. Enter table on page bottom with landslope and upslope <br />_ dike ratio. Select dike multiplier of 4: >?. . . <br />e; Multiply dike multiplier by upslope mound height <br />to get upslope dike width: 4 ~ x _2-= /3 feet <br />f. Add the depth of slope difference (2b) to the upslope <br />height to get the downslope hel$ht . <br />3 + 0,3 = 5,5> feet <br />g. Enter table on page bottom with landslope and <br />downslope dike ratio. <br />Select dike multiplier of 5,BB <br />h. Multiply dike multiplier by downslope mound h~ight · <br />to get downslope dike width:_.$ 9;8 x :~. 3 = -Z.O feet <br />···=······· <br />/,)5xl0)( 5o =-S,~ <br />3x7~ le.,,~ 2.-; l4~ <br />3: 3xz~-;,..-h.,::--z.s-05 <br />~.1.£ .. xJox1~::. '9-ID <br />1. Compare the valu~ ~f step G. :I and Step G.2.h. Select the <br />greater of the two values as the downslope dike width; <br />2D feet ... -.·:-:·:-:·:-:·:·=·:·=·:·=·:•=·: .,:-:-=·:-:·:•:·:-:·:•=·:-:·:•=·:•=·:•=· : ::_:::-::;;-"" <br />j. Total mound width is the sum of upslope dike Roo:·~v;w·i{~·····t ::~t:~t-~.t-~~:.,~ .. -.·::.: ·_.}:t{~·-. <br />width plus rock layer width plus downslope . .-:::,?:-~~:-:-~:••.:•·.:•·.:•·.:-·.:··•:• ·-:•·.:•·.:··•:•·.:•·.:•·.:•··:··•:···:··::'-./~:-},>? <br />• • . . .•. ·:: ·:: •• l3e<l Length__ . --~--;~ <br />dike width· .-:·.,:~:-:.-:• --~~~~~~ :,:···/·i,:•.,.: <br />r:3> ft+ lo ft+ U> ft= 43 feet. Upslope·W'i{~~:.-:::-_.·;:-_.::::,;::~t-~~~-::~;:}-;~~-::~;~if~~-·~':;;~.i;{::~~ <br />_ . k. 1:otal ~ound length is the sum of upslope ::-\:(~i:~?:~i~I~} ·f~j\~f::.~~t~£/_/:_~~~tf} <br />dike width plus rock layer length plus ·.:•·.:-,:•·.:···=•·.:···=-··=···=···=·· •· •· •· •· •· •· ·• •· •· ~ ~ ·• :., , .; ·J <br />up,1~ed;':wi~; H+ 13 ft= /~ feet ·;'.?J;;;;:;:~~~~i~(~J,;~:~ic: <br />l:l . '=I <br />LJownslope <br />5:1 &:I 7:1 3:1 "'1 <br />Upslope <br />5:1 &:I 7:1 1:1 <br />s ,Jope <br />a 3.0 "° s.a &.O 7.JJ 3.0 '-0 s.o &..O 7.D a.a <br />l 3.01 .U7 5.26 &.31 7.53 231 :us u, ~ 6.54 7.41 <br />2 "' 4.35 ~ &..a2 &.U l.!3 l..,"O @· .5.36 &.14 uo <br />3 3.JO Uol. 7:!2 u& 2.7S 3.!S7 ·5.DI ~ us <br />" 3.41 U& &..2S 7..8' ,.:n 2.6& 3.45 U4 S.-14 &.OS <br />s , 3.53 sm &.Fil &SI 10.71 2.61 l.33 4..CO 4.t.l 5.19 S.71 <br />6 ' 3...66 u 7.14 9..3& 12.D7 ~ 3.:23 .us -Ul ·4.93 5.41 <br />7 3.110 5.S& 7.111 111.34 ll..73 2.41 3..12 l.70 Ul ,j.j'IJ 5.13 • :us us &.33 11..5-4 IS.Sit 2.42 3.03 3.!S7 4.05 -U9 ua. ,. 4.11 6..75 9.01 1:3.0& 11.92 2.36 2..94 us 3.SIO Ul us <br />10 U1 "' 10.0 15.00 ZlJ.J 2.:11 U6 , l..l3 l.1S .C..12 '-"' 11 -1..41 7.l-4 11.ll • 17.&5 30.A.l U& 2.13 l.ll· . <br />l.&I l.95 -4.26 <br />12 4.69 1.111 12..SO 21.43 "3..7S 2..21 UIJ 3.12 l.-19 uo -1.011 <br />•.