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BULLDOZER RIPPING WORK <br />Task description: -Rip All Surface Facility Areas <br />Permit Action: MT-06 - Compaction <br />Site: Elk Creek Mine and Ripping Tasks Permit/Job#: C1981022 <br />PROJECT IDENTIFICATION <br />Task #: 034 State: Colorado <br />Date: 14-Apr-11 County: Delta <br />User: JRS <br />Seismic: <br />Area: <br />Agency or organization name: DRMS <br />HOURLY EQUIPMENT COST <br />Basic Machine: Cat D I OR - l OSU (2005) <br />Ripper Attachment: 3-Shank Ripper <br />Cost Breakdown: <br />Horsepower: 570 <br />Shift Basis: 1 per day <br />Data Source: (CRG) <br /> Utilization % <br />Ownership Cost/Hour: $78.71 NA <br />Operating Cost/Hour: $147.96 100 <br />Ripper Operating Cost/Hour: $8.22 100 <br />Operator Cost/Hour: $38.49 NA <br />Total Unit Cost/Hour: $273.37 <br />Total Fleet Cost/Hour: $820.12 <br />MATERIAL QUANTITIES Selected estimating method: Area <br />Alternate Methods: <br />NA Bank Volume: NA BCY NA <br />90 acres Rip Depth (ft): <br />Source of estimated quantity: Page <br />HOURLY PRODUCTION <br />Seismic: <br />2.00 <br />2.05-20 <br />Volume: 291,045 BCY or CCY <br />Seismic Velocity: NA feet/second <br />Area: <br />Average Ripping Depth: 2.00 mph <br />Average Ripping Width: 8.67 degrees <br />Average Ripping Length: 300.00 feet <br />Average Dozer Speed: 88.00 feet <br />Average Maneuver Time: 0.25 feet <br />Production per unit area: 0.979 acres/hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: 0.979 Acres/hr <br />Site Altitude: 6,200 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: 0.81 Acres/hr <br />Adjusted Hourly Fleet Production: 2.44 Acres/hr <br />JOB TIME AND COST <br />Fleet size: 3 Grader(s) Total job time: 37.00 <br />Unit cost: $336.389 Per acre <br />Abbreviation: None <br />Filename: C022-034 <br />Total job cost: $30,343.00 <br />Hours <br />CIRCES Cost Estimating Software