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CIRCES Cost Estimating Software <br /> BULLDOZER RIPPING WORK <br /> PROJECT IDENTIFICATION <br /> Task#: 003 State:Colorado Permitrob#:M-1977-223 <br /> Date : 10/26/2010 County:Prowers Abbreviation :none <br /> User: MAC Site :Wiley Pit Filename:M223-003 <br /> Agency or organization name :Colorado Division Of Reclamation, Mining And Safety <br /> Permit or other job action :AM-01 Bond Estimate <br /> Task description :Ripping stockpile/process area <br /> HOURLY EQUIPMENT COST <br /> Basic machine :Cat D8R Series ll-8SU(200' Horsepower: 310 <br /> Blade type:Semi-Universal <br /> Attachment no. 1 :ROPS Cab Shift basis : 1 per day <br /> Attachment no.2 :3-shank ripper <br /> Data source: (CRG) <br /> Utilization% <br /> Cost Breakdown : Ownership cost/hour: $53.54 NA <br /> Dozer operating cost/hour: $70.36 100 <br /> Ripper operating cost/hour: $6.29 100 <br /> Operator cost/hour: $38.54 NA <br /> Total unit cost/hour: $168.72 Total fleet cost/hour: $337.44 <br /> MATERIAL QUANTITIES <br /> Selected estimating method : Area <br /> Alternate methods- <br /> Seismic: NA NA Load factor: NA Bank volume: NA BCY <br /> Area : 35.00 acres Rip depth (ft) : 1.00 Volume :- 56,467 BCY or CCY <br /> Source of estimated quantity:Revised Exhibit L- Reclamation Costs(Page 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 : 1,326.18 cu.yds./hour <br /> Area : Avg. ripping depth : 1.00 feet/pass Site altitude: 3,750 feet <br /> Average ripping width : 7.08 feet/pass Altitude adjustment: 1.00 (Cat HB) <br /> Average ripping length : 500.00 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 : 0.822 acres/hour Adjusted unit production : 1,100.73 cu. yds./hour <br /> Unadjusted production : 1,326.18 cu. yds./hour Adjusted fleet production : 2,201.46 cu.yds./hour <br /> JOB TIME AND COST <br /> Fleet size : 2 dozer(s) Total job time : 25.65 hours <br /> Unit cost: $0.153 per cu.yd. Total job cost: $8,655 <br />