Laserfiche WebLink
DOWNSLOPE DIKE WIDTH <br />. If landslope is 3% or more, subtract rode layer width from <br />adsorption width to obtain minimum downslope dike toe <br />ft« to ft* ^ ft <br />t Calculate mound height at edge of rock layer on downslope <br />side; <br />a. Determine depth of dean sand fill at upslope edge of rode <br />layerS^porsfum /■ Q feet <br />b. Multiply rock layer width by landslope to determine drop <br />in Slope Difjfgrence <br />to x_3_%»ioo. ft <br />c Add depdi of dean sand depth of dean sand for <br />separation at downslope edge to depth of rode layer to <br />depth of soil badefiU to get mound height at downslope <br />edge of rode layer; <br />ft* /.Q ft-l- -S' ft* ftw <br />d. Enter table on page E-18 with landslope and o /^pe <br />dikeratio. Select dike multiplier of 4 <br />e. Multiply dike multiplier by downslope mound height <br />to get downriope dike width: 3.3 x ft <br />g. Compare the values of step G.1 and Step G^f. Select the <br />greater of the two values as the downslope dike width; <br />»S" feet <br />h. Calculate upslope dike widdi using upslope mound <br />height and upslope dike multiplier from page E-18; <br />3.0 X 3-^9 - II ft <br />L Total »d width is the stun of upslope dike width plus <br />rodclayi^ width plus downslope dike width; <br />.11__iQ ft^ ft» JU ft____________ <br />3. If landslope is Z9 percent or less, basal widdi includes both the <br />upslope and downslope dike widdis. <br />a. Calculate downslope dike width using steps G^a. <br />through G.24;____feet <br />b. Calculate upslope dike width using upslope mound <br />height and dike multiplier 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-f____ft+____ft-____ft <br />E-18