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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task # : 03a State :Colorado Permit/job #:M-2001-100 <br />Date : 0210712008 County :Mesa Abbreviation :none <br />User : THM Site: Blm Pit #1 Filename :M100-03a <br />Agency or organization name: DRMS <br />Permit or other job action : Reclamation Cost Update _ <br />Task description : Rip pit floor and processing area <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D8R Series 11 - 8SU (200; Horsepower : 310 <br />Blade type : Semi-Universal <br />Attachment no. 1 : ROPS Cab Shiftbasis : 1 per day <br />Attachment no. 2 :3-shank ripper <br /> Data source : (CRG) <br />Utilization % <br />Cost Breakdown : Ownership cost/hour : $57.41 NA <br />Dozer operating cost/hour : $77.13 100 <br />Ripper operating cost/hour : $6.86 100 <br />Operator cost/hour : $32.78 NA <br />Total unit cost/hour : $174.18 Total fleet cost/hour : $174.18 <br />MATERIAL QUANTITIES <br />Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 2.97 acres Rip depth (ft) : 2.00 Volume : 9,583 BCY or CCY <br />Source of estimated quantity: Mine plan and map <br />Source of estimated load factor :NA <br />HOURLY PRODUCTION <br />Alternate methods - Job Condition Correction Factors - <br />Seismic : Seismic velocity : NA feet/second Unadjusted production <br />Unadjusted production : NA cu. yds./hour per selected method : 1,247.33 cu. yds./hour <br />Area : Avg. ripping depth : 1.00 feet/pass Site altitude : 4,960 feet <br />Average ripping width : 7.08 feet/pass Altitude adjustment : 1.00 (Cat HB) <br />Average ripping length :__i00.00 feet/pass Job efficiency factor : 0.83 (1 shift/_day) <br />Average dozer speed : 88.00 feet/minute Net job correction : 0.83 multiplier <br />Average maneuver time : 0.25 minutes/pass <br />Production per unit area :--6.773 acres/hour Adjusted unit production : 1,035.28 cu. yds./hour <br />Unadjusted production : 1,247.33 cu. yds./hour Adjusted fleet production : 1,035.28 cu. yds./hour <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 9.25 hours <br />Unit cost : $0.168 per cu. yd. Total job cost : $1,612