Laserfiche WebLink
T'he backtill creates an advancing highwall within the pit. The new highwall is at a <br />0.511:1 V currently, and will have to be reclaimed to 3H:1 V: <br />Designed <br />n3clemation slope <br />3H:iV Mined abpe <br />Q.5H:1 V <br />"fhe new highwall runs 700 feet across the pit. 7'hc reclamation of this highwall will be <br />completed by a dorcr pushing the crest of the slope down to create the tinal 3FI: I V slope. <br />1'heref~~re, warranty reduction fur Vagneur Pit is determined based on the cost of <br />reclaiming the old highwall minus the cost to reclaim the new highwall. This is shown in <br />the following tahlc: <br />Table 1 -Warranty Reduction Amount <br /> llnit Cost <br />Activity description Quanity iJnits ($icy) Cost ($) <br />[3ackiilling of slope from 1 } 1:1 V to 31 I: l V <br />over a distance of 2,100 linear feet to wlthln ~' <br />of the top of the highwall. 380,411 cy 0.68 $258,680 <br />700 feet of 0.5H: I V highwall created across <br />the front of the backfill. Quantity and cost <br />reflect material need to return to 31 l: l V, via <br />dov.cr. 145,477 cy 0.35 $50,y17 <br />Net warranty reduction $207.763 <br />[)MG Costs (21 %, x direct costs) $43,6 30 <br />Total Qond Reduction Amount $251,.93 <br />