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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, <br />2. Calculate minimum mound size based on geometery: <br />a. Determine depth of clean sand fill at upslope edge of rock <br />layer: Separation /,U feet <br />b. Multiply rock layer width by landslope to determine drop <br />in elevation; Slope Difference <br />10 x CA—%+100= 0'a feet <br />c. Add depth of clean sand depth of clean sand for �..,. <br />t I d( 2 d t f k I --- <br />11 l 694t'04( V <br />3.�a <br />3.0� <br />1 6.r 11.a <br />separation a ups ope a g6t:a) to ept i o roc ayer to ._...�,.,.. <br />rock depth and the depth of cover to find the total mound <br />height at upslope edge of rock layer; <br />/.o ft + 1 ft + 1 ft = 3.6 feet k(' <br />d. Enter table on page bottom with landslope and upslope <br />dike ratio. Select dike multiplier of 3-S 7 <br />e. Multiply dike multiplier by upsic.pe mound height <br />to get upslope dike width:3--Y� x 3, c, = // feet <br />f. Add the depth of slope difference (2b) to [lie upslope <br />height to get the downslope heightG,;, +3-o =,3, �) feet <br />g. Enter table on page E -IS with landslope and downslope <br />dike ratio. Select dike multiplier of 14-S-11 <br />h. Multiply dike multiplier by downslope mound height <br />to get downslope dike width: ,S x 3. J = / feet <br />I. Mininmum mound width is the sum of upslope dike <br />width plus rock layer width plus downslore dike width; <br />J1 ft + /o ft + /S ft. 3 feet R«ki4%4 <br />j. Subtract the Minimum width G i from the Absorption <br />width FA to find the Additional Downslope req.iired for <br />Absorption <br />ZS' ft - 3_ ft = feet Up <br />k. Add the Additional Downslope required for Absorptic <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 />ft + /0 ft + /5— ft = _-36 feet <br />1. Total mound length is the sum of upsloi -e dike width <br />plus rock layer length plus up.11ope dike width; <br />—L ft + _t/L ft + 1L ft= (03 feet <br />iziC..W th <br />i.l <br />61 <br />wm tiv <br />it <br />11 <br />71 <br />it <br />41 <br />141pe <br />S1 <br />61 <br />71 <br />@1 <br />a.N. <br />0 <br />iA <br />40 <br />SO <br />40 <br />70 <br />So <br />40 <br />SO <br />60 <br />70 <br />i0 <br />1 <br />U111, <br />6.17 <br />136 <br />an <br />7S1 <br />1.1 <br />I14 <br />476 <br />1K <br />414 <br />741 <br />114 <br />6QX11 "143 <br />717 <br />1116 <br />7711 <br />PIS <br />ti]S7 <br />44 <br />1SA <br />114 <br />Son <br />•14 <br />S7• <br />�b <br />61.5 <br />1' <br />71A1 <br />6 IS <br />7 M <br />• '1 <br />161 <br />145 <br />t <br />1 17 <br />1 M <br />3 46 <br />6 06 <br />!.� <br />667 <br />4S7 <br />In 77 <br />741 <br />71) <br />100 <br />1Q <br />SI• <br />1111 <br />6 <br />Ill <br />711 <br />•TA <br />,707 <br />7Sl <br />)n <br />lr <br />611 <br />Ih <br />1111 <br />1 <br />"AA <br />s•" <br />7M <br />IOH <br />t)') <br />1" <br />111 <br />170 <br />In <br />170 <br />SU <br />4 <br />in <br />it <br />41) <br />II S4 <br />1 11 <br />111 <br />Im <br />1s7 <br />141 <br />Ih <br />1� <br />• <br />411 <br />l7S <br />•U <br />I)M <br />14.7 <br />1M <br />1M <br />1� <br />1.0 <br />110 <br />I.S <br />I0 <br />11• <br />647 <br />10 (i <br />I S (Irl <br />1111 <br />ill <br />7 46 <br />Ill <br />ITS <br />411 <br />4 M <br />11 <br />1M <br />714 <br />II 11 <br />1761 <br />N'/1 <br />176 <br />770 <br />113 <br />161 <br />1" <br />4 <br />17 <br />444 <br />740 <br />17 SO <br />1144 <br />11'11 <br />771 <br />7N0 <br />)q <br />1100 <br />it <br />/r <br />