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BULLDOZER RIPPING WORK <br /> Task description: Rip Gravel Pad at Rock Dust Facilities Area <br /> Site: Deserado Mine Permit Action: 2022 Midterm Review Permit/Job#: C1981018 <br /> PROJECT IDENTIFICATION <br /> Task#: O l l State: Colorado Abbreviation: None <br /> Date: 11/9/2022 County: Rio Blanco Filename: C018-011 <br /> User: CCW <br /> Agency or organization name: DRMS <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D9T-9SU Horsepower: 405 <br /> Ripper Attachment: 3-Shank Ripper Shift Basis: 1 per day <br /> Data Source: (CRG) <br /> Cost Breakdown: <br /> Utilization% <br /> Ownership Cost/Hour: $146.30 NA <br /> Operating Cost/Hour: $141.41 100 <br /> Ripper Ownership Cost/Hour: $17.01 NA <br /> Ripper Operating Cost/Hour: $8.85 100 <br /> Operator Cost/Hour: $41.30 NA <br /> Total Unit Cost/Hour: $354.87 <br /> Total Fleet Cost/Hour: $1,419.49 <br /> MATERIAL QUANTITIES Selected estimating method: Area <br /> Alternate Methods: <br /> Seismic: NA Bank Volume: NA BCY NA <br /> Area: 1.00 acres Rip Depth(ft): 2.00 Volume: 3,227 BCY or CCY <br /> Source of estimated quantity: Division Estimate <br /> HOURLY PRODUCTION <br /> Seismic: <br /> Seismic Velocity: NA feet/second <br /> Area: <br /> Average Ripping Depth: 2.00 feet/pass <br /> Average Ripping Width: 7.67 feet/pass <br /> Average Ripping Length: 100.00 feet/pass <br /> Average Dozer Speed: 88.00 feet/minute <br /> Average Maneuver Time: 0.25 minutes/pass <br /> Production per unit area: 0.762 acres/hour <br /> Job Condition Correction Factors <br /> Unadjusted Hourly Unit Production: 0.762 Acres/hr <br /> Site Altitude: 5,300 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: 0.63 Acres/hr <br /> Adjusted Hourly Fleet Production: 2.53 Acres/hr <br /> JOB TIME AND COST <br /> Fleet size: 4 Grader(s) Total job time: 0.40 Hours <br /> Unit cost: $561.060 Per acre Total job cost: S561 <br /> CIRCES Cost Estimating Software <br />