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BULLDOZER RIPPING WORK <br /> Task description: Rip processing area <br /> Site: Willow Creek Mine Permit Action: AM-3 Permit/Job#: M1983011 <br /> PROJECT IDENTIFICATION <br /> Task#: 02A State: Colorado Abbreviation: None <br /> Date: 10/12/2018 County: Lake Filename: MO11-02a <br /> User: DMC <br /> Agency or organization name: DRMS <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D8T-8SU Horsepower: 310 <br /> Ripper Attachment: 3-Shank Ripper Shift Basis: I per day <br /> Data Source: (CRG) <br /> Cost Breakdown: <br /> Utilization% <br /> Ownership Cost/Hour: $93.62 NA <br /> Operating Cost/Hour: $73.35 100 <br /> Ripper Ownership Cost/Hour: $8.93 NA <br /> Ripper Operating Cost/Hour: $7.78 100 <br /> Operator Cost/Hour: $41.52 NA <br /> Total Unit Cost/Hour: $225.20 <br /> Total Fleet Cost/Hour: $225.20 <br /> MATERIAL QUANTITIES Selected estimating method: Area <br /> Alternate Methods: <br /> Seismic: NA Bank Volume: NA BCY NA <br /> Area: 5.00 acres Rip Depth(ft): 1.00 Volume: 8,067 BCY or CCY <br /> Source of estimated quantity: Exhibit L <br /> HOURLY PRODUCTION <br /> Seismic: <br /> Seismic Velocity: NA feet/second <br /> Area: <br /> Average Ripping Depth: 2.56 mph <br /> Average Ripping Width: 7.08 degrees <br /> Average Ripping Length: 200.00 feet <br /> Average Dozer Speed: 88.00 feet <br /> Average Maneuver Time: 0.25 feet <br /> Production per unit area: 0.773 acres/hour <br /> Job Condition Correction Factors <br /> Unadjusted Hourly Unit Production: 0.773 Acres/hr <br /> Site Altitude: 9,600 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: 0.64 Acres/hr <br /> Adjusted Hourly Fleet Production: 0.64 Acres/hr <br /> JOB TIME AND COST <br /> Fleet size: 1 Grader(s) Total job time: 7.79 Hours <br /> Unit cost: $350.941 Per acre Total job cost: $1,755 <br /> CIRCES Cost Estimating Software <br />