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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: 06a State : Colorado Permit/job #:M-2001-100 <br />Date : 0210712008 County :Mesa Abbreviation :none <br />User : THM Site :B/m Pit #1 Filename :M100-06a <br />Agency or organization name: DRMS <br />Permit or other job action :Reclamation Cost Update _ <br />Task description :Rip haul road <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D8R Series 11 - 8U (2005) Horsepower : 310 <br />Blade type :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 : $57.69 NA <br />Dozer operating cost/hour : $77.43 100 <br />Ripper operating cost/hour : $6.86 100 <br />Operator cost/hour : $32.78 NA <br />Total unit cost/hour : $174.75 Total fleet cost/hour : $174.75 <br />MATERIAL QUANTITIES <br /> Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 1.26 acres Rip depth (ft) : 2.00 Volume : 4,066 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 : 1,289.94 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 : 300.00 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 : 0.800 acres/hour Adjusted unit production : 1,070.65 cu. yds./hour <br />Unadjusted production : 1,289.94 cu. yds./hour Adjusted fleet production : 1,070.65 cu. yds./hour <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 3.80 hours <br />Unit cost : $0.163 per cu. yd. Total job cost : $664