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BULLDOZER RIPPING WORE <br /> Task description: Rip 7.68 acres of terrace <br /> Site: Flag Creek Mine Permit Action: SI-2 Permit/Job#: M1997098 <br /> PROJECT IDENTIFICATION <br /> Task#: 02A State: Colorado Abbreviation: None <br /> Date: 5/9/2016 County: Rio Blanco Filename: M098-02a <br /> User: THM <br /> Agency or organization name: DRMS <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D8T-8SU Horsepower: 310 <br /> Ripper Attachment: 1-Shan_k Ripper Shift Basis: 1 per day <br /> Data Source: (CRG) <br /> Cost Breakdown: <br /> Utilization°o <br /> Ownership Cost/Hour: $74.27 NA <br /> Operating Cost/Hour: $102.51 100 <br /> Ripper Operating Cost/Hour: $9.46 100 <br /> Operator Cost/Hour: $38.89 NA <br /> Total Unit Cost/Hour: $225.13 <br /> Total Fleet Cost/Hour: $225.13 <br /> MATERIAL QUANTITIES Selected estimating method: Area <br /> Alternate Methods: <br /> Seismic: NA Bank Volume: NA BCY NA <br /> Area: 7.68 acres Rip Depth(ft): 2.00 Volume: 24,781 BCY or CCY <br /> Source of estimated quantity: Staff Estimate <br /> HOURLY PRODUCTION <br /> Seismic: <br /> Seismic Velocity: NA feet/second <br /> Area: <br /> Average Ripping Depth: 1.00 mph <br /> Average Ripping Width: 5.56 degrees <br /> Average Ripping Length: 50.00 feet <br /> Average Dozer Speed: 88.00 feet <br /> Average Maneuver Time: 0.25 feet <br /> Production per unit area: 0.468 acres/hour <br /> Job Condition Correction Factors <br /> Unadjusted Hourly Unit Production: 0.468 Acres/hr <br /> Site Altitude: 8,200 feet <br /> Altitude Adj: 1.00 (CAT HB) <br /> Job Efficiency: 0.83 (1 shift/day) <br /> Net Correction: 0.83 multiplier <br /> Adjusted Hourly Unit Production: 0.39 Acres/hr <br /> Adjusted Hourly Fleet Production: 0.39 Acres/hr <br /> JOB TIlVIE AND COST <br /> Fleet size: 1 Grader(s) Total job time: 19.77 Hours <br /> Unit cost: $579.558 Per acre Total job cost: $4,451 <br /> CIRCES Cost Estimating Software <br />