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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />PROJECT IDENTIFICATION <br />Task #: 04a State :Colorado Permit/job #:M-1978-305 <br />Date : 0712012008 County :Gunnison Abbreviation :none <br />User : SSS Site :Dickerson Pit Filename :M305-04a + <br />Agency or organization name : DRMS <br />Permit or other job action :Succession of Operator #4 <br />Task description : Rip compaction on pit floor <br /> <br />HOURLY EQUIPMENT COST <br />Basic machine : Cat D7R DS Series 11 - 7SU Horsepower : 240 <br />Blade type : Semi-Universal <br />Attachment no. 1 : BOPS Cab Shiftbasis : 1 per day <br /> <br />Attachment no. 2 :3-shank ripper _ <br /> Data source : (CRG) <br /> Utilization % <br />Cost Breakdown : Ownership cost/hour : $46.68 NA <br />Dozer operating cost/hour : $56.19 100 <br />Ripper operating cost/hour : $4.30 100 <br />Operator cost/hour : $32.78 NA <br />Total unit cost/hour : $139.95 Total fleet cost/hour : $139.95 <br />MATERIAL QUANTITIES <br /> Selected estimating method : Area <br />Alternate methods - <br />Seismic : NA NA Load factor : NA Bank volume : NA BCY <br />Area : 8.50 acres Rip depth (ft) : 1.50 Volume : 20,570 BCY or CCY <br />Source of estimated quantity : TR-03 Map newly defined Zone 4 <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 : 1,752.45 cu. yds./hour <br />Area : Avg. ripping depth : 1.50 feet/pass Site altitude : 7,600 feet <br />Average ripping width : 6.50 feet/pass Altitude adjustment : 0.93 (Cat HB) <br />Average ripping length : 250.00 feet/pass Job efficiency factor : 0.83 (1 shift/day) <br />Average dozer speed : 88.00 feet/minute Net job correction : 0.77 multiplier <br />Average maneuver time : 0.25 minutes/pass <br />Production per unit area : 0.724 acres/hour Adjusted unit production : 1,352.72 cu. yds./hour <br />Unadjusted production : 1,752.45 cu. yds./hour Adjusted fleet production : 1,352.72 cu. yds./hour <br />JOB TIME AND COST <br />Fleet size : 1 dozer(s) Total job time : 15.21 hours <br />Unit cost : $0.103 per cu. yd. Total job cost : $2,128