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<br />job efficiency 0.83 <br />Haulage truck - 15 minute round trip (including load time) <br />truck making 4 round trips per hour <br />Production Rates: <br />400 yd3 (1.1 bulking factor) = 440 yd3 <br />440 yd3 / 20 yd3/truck load = 22 truck loads <br />22 trips /2 trucks (4 trips/truck hour)] = 2.75 hours <br />2.75 hours [(2 trucks)($65/truck hour )] _ $358 <br />2.75 hours ($1 I S/loader hour) _ $316 / <br />Total transport cost ($358 trucks + $316 loader) $675 V <br />Rip-rap Placement <br />Placement of [he screened rip-rap into the diversion channel and collection pond <br />energy dissipater will be placed using a Caterpillar 225 traecavator <br />Production Rate: <br />Production rate = 20 cycles hour loading and placing the material <br />Job efficiency 0.83 <br />Bucket Family C <br />Type of work -light utility (1.5 yd3/bucket) <br />Operator efficiency average (75%) <br />Corrected production rate/hour = 18.67 yd3/hour ~ <br />Volume = 440 yd3 ,~ ~ `` / <br />Total placement cost (440 yd3 / 18.67 yd3/hour) ($90/hour)~$2,12Q' t <br />D.4.3 Collection Pond: <br />Liner Preparation: <br />Prior to backfilling [he collection pond, <br />floor center. Activities will require: <br />~z~h~~ <br />the liner will be serrated andJaetd into the <br />4 people (8 hours) ($25.00/hour) _ $800 ~~ <br />Pond Backfill: <br />Pond volume = 1,200,000 fr3 <br />Pond fill required = 1,20Q,000 fr3 / 27 fr3/yd3 = 44,500 yd3 <br />Equipment: 1 -Caterpillar 988 loader <br />6 - 20 yd over-the-road end dump trucks <br />Production Rate Assumptions: <br />Loader: 1 truck loaded each 2 inutes <br />job efficiency 0.83 <br />PRELIMINARY DRAFT <br />FOR DISCUSSION PURPOSES ONLY <br />