2006-11-20_REVISION - M1986160 (2)

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CIRCES Cost Estimating Software BULLDOZER RIPPING WORK PROJECT IDENTIFICATION Task # : 02a Date : 11/20/2006 User : GRM State :Colorado County :Mesa Site : Sunnyside Gravelmine PermiUjob # : M-1986-160 Abbreviation :none Filename :M160-02a Agency or organization name :DRMS Permit or otherjob action :Reclamation Liability Updai Task description :rip compacted pit /loon HOURLY EQUIPMENT COST 2006 Basic machine :Cat D8R Series 11 - 8U (2005) Blade type :Universal Attachment no. 1 :BOPS Cab Attachment no. 2 1-shank ripper Utilization Cast Breakdown : Ownership costlhour : $59.12 NA Dozer operating costlhour : $74.00 100 Ripper operating cost/hour : $8.51 100 Operator costlhour : $32.78 NA Total unit costlhour : $174.40 Total fleet costlhour MATERIAL QUANTITIES $174.40 Selected estimating method : Area Alternate methods - Seismic : NA NA Load factor Area : 5.00 acres Rip depth (ft) Source of estimated quantity :accepted volumes Source of estimated load factor :NA HOURLY PRODUCTION Alternate methods - Seismic : Seismic velocity Unadjusted production Area : Avg. ripping depth Average ripping width Average ripping length Average dozer speed Average maneuver time Production per unit area Unadjusted production JOB TIME AND COST Fleet size Unit cost NA feet/second NA cu. yds./hour 1.50 feeUpass 5.56 feeUpass 250.00 feeUpass 88.00 feeUminute 0.25 minutes/pass 0.619 acres/hour 1,499.02 cu. yds./hour 1 dozers) $0.140 per cu. yd. NA Bank volume : 1.50 Volume : NA 12,100 BCY BCY or CCY ~ Condition Correction Factors - Unadjusted production per selected method : 1,499.02 cu. yds./hour Site altitude : 5,800 feet Altitude adjustment : 1.00 (Cat HB) Job efficiency factor : 0.83 (1 shifUday) Net job correction : 0.83 multiplier Adjusted unit production : 1,244.19 cu. yds./hour Adjusted fleet production : 1,244.19 cu. ytls./hour Total job time : 9.72 hours Total job cost : $1,696 Horsepower: 310 Shift basis : 1 per day Data source : (CRG)