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CIRCES Cost Estimating Software BULLDOZER RIPPING WORK PROJECT IDENTIFICATION Task # : 08a Date : 04/03/2006 User : GRM State :Colorado PermiUjob # :M-2005-077 County :Mesa Abbreviation :none Site :Upland Gravel #3 Filename : M077-08a Agency or organization name :DMG Permit or other job action :Initial Reclamation Liability Estimate - 2006 Task description :rip 1.75 acres of haul road HOURLY EQUIPMENT COST Basic machine :Cat D8R Series 11 - 8SU Blade type :Semi-Universal Attachment no. 1 :ROPS Cab Attachment no. 2 : 3-shank ripper Utilization Cost Breakdown : Ownership cosUhour : $53.92 NA Dozer operating cosUhour : $75.29 100 Ripper operating cost/hour : $7.98 100 Operator cosUhour : $32.53 NA Total unit cosUhour : $169.72 Total fleet cosUhour Selected estimating method Alternate methods - Seismic : NA NA Load factor : NA Bank volume Area : 1.75 acres Rip depth (ft) : 2.00 Volume Source of estimated quantity :3800' of haul road X 20 feet wide X 2 feet Source of estimated load factor : NA Area NA 5,647 $169.72 BCY BCY or CCY HOURLY PRODUCTION Alternate methods - Seismic : Seismic velocity : NA feeUsecond Unadjusted production : NA cu. yds./hour Area : Avg. ripping depth : 1.00 feeUpass Average ripping width : 7.08 feeUpass Average ripping length : 500.00 feeUpass Average dozer speed : 88.00 feeUminute Average maneuver time : 0.25 minutes/pass Production per unit area : 0.822 acres/hour Unadjusted production : 1,326.18 cu. yds./hour Unadjusted production per selected method : 1,326.18 cu. yds./hour Site altitude : 5,000 feet Altitude adjustment : 1.00 (Cat HB) Job efficiency factor : 0.83 (1 shift/dayJ Net job correction : 0.83 multiplier Adjusted unit production : 1,100.73 cu. yds./hour Adjusted fleet production : 1,100.73 cu. yds./hour JOB TIME AND COST Fleet size : 1 dozers) Total job time : 5.13 hours Unit cost : $0.154 per cu. yd. Total job cost : $871 Horsepower: 310 Shift basis : 1 per day Data source : (CRG)