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CIRCES Cost Estimating Software <br />BULLDOZER RIPPING WORK <br />Task description: Rip Remaining South Taylor Pit Highwall <br />Site: Colowyo Coal Mine Permit Action: Permit Renewal 06 Permit/Job#: C1981019 <br />PROJECT IDENTIFICATION Task #: 026 State: Colorado Abbreviation: None <br />Date: 1/8/2013 County: Moffat Filename: C019-026 <br />User: JRS <br />Agency or organization name: DRMS <br />HOURLY EQUIPMENT COST Basic Machine: Cat D11R - 11U Horsepower: 850 <br />Ripper Attachment: 1-Shank Ripper Shift Basis: 1 per day <br /> Data Source: (CRG) Cost Breakdown: <br /> Utilization % <br />Ownership Cost/Hour: $143.02 NA <br />Operating Cost/Hour: $280.92 100 <br />Ripper Operating Cost/Hour: $15.45 100 <br />Operator Cost/Hour: $37.41 NA <br />Total Unit Cost/Hour: $476.80 Total Fleet Cost/Hour: $1,907.19 <br />MATERIAL QUANTITIES Alternate Methods: <br />Seismic: 242,700 LCY Bank Volume: 242,700 BCY Midrange <br />Area: NA acres Rip Depth (ft): NA Volume: NA BCY or CCY Source of estimated quantity: Maps 19A, 23A, 29A and 36A <br />HOURLY PRODUCTION <br />Seismic: <br />Seismic Velocity: 3,500 feet/second <br />Area: <br />Average Ripping Depth: NA mph <br />Average Ripping Width: NA degrees <br />Average Ripping Length: NA feet <br />Average Dozer Speed: NA feet <br />Average Maneuver Time: NA feet <br />Production per unit area: NA acres/hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: 2,490.40 Cu. yds./hr Site Altitude: 7,600 feet <br />Altitude Adj: 0.93 (CAT HB) <br />Job Efficiency: 0.83 (1 shift/day) <br />Net Correction: 0.77 multiplier Adjusted Hourly Unit Production: 1,922.34 Cu. yds./hr <br />Adjusted Hourly Fleet Production: 7,689.36 Cu. yds./hr <br />JOB TIME AND COST Fleet size: 4 Grader(s) Total job time: 31.56 Hours <br /> <br />Unit cost: <br /> <br />$0.248 <br /> <br />Per cu. yd. <br /> <br />Total job cost: <br /> <br />$60,197.00 <br /> <br />Selected estimating method: Seismic