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BULLDOZER RIPPING WORK <br />Task description: Rip Remaining West Pit Highwall <br />Site: Colowyo Coal Mine Permit Action: MT7 Permit/Job#: C1981019 <br />PROJECT IDENTIFICATION <br />Task #: 025 State: Colorado <br />Date: 4/8/2016 County: Moffat <br />User: JHB <br />Agency or organization name: DBMS <br />HOURLY EQUIPMENT COST <br />Basic Machine: Cat DI IT - 11U <br />Ripper Attachment: 1 -Shank Ripper <br />Cost Breakdown: <br />Ownership Cost/Hour: <br />Operating Cost/Hour: <br />Ripper Operating Cost/Hour: <br />Operator Cost/Hour: <br />Total Unit Cost/Hour: <br />Abbreviation: None <br />Filename: C019-025 <br />Horsepower: 850 <br />Shift Basis: 1 per day <br />Data Source: (CRG) <br />Total Fleet Cost/Hour: $2,165.89 <br />MATERIAL QUANTITIES Selected estimating method: Seismic <br />Alternate Methods: <br />Seismic: 433,850 BCY Bank Volume: 433,850 BCY Midrange <br />Area: NA acres Rip Depth (ft): NA Volume: NA BCY or CCY <br />Source of estimated quantity: Maps 19, 23, 29 and 35A <br />HOURLY PRODUCTION <br />Seismic: <br />Seismic Velocity: <br />Utilization % <br />$194.10 <br />NA <br />$291.79 <br />100 <br />$16.70 <br />100 <br />$38.89 <br />NA <br />$541.47 <br />degrees <br />Total Fleet Cost/Hour: $2,165.89 <br />MATERIAL QUANTITIES Selected estimating method: Seismic <br />Alternate Methods: <br />Seismic: 433,850 BCY Bank Volume: 433,850 BCY Midrange <br />Area: NA acres Rip Depth (ft): NA Volume: NA BCY or CCY <br />Source of estimated quantity: Maps 19, 23, 29 and 35A <br />HOURLY PRODUCTION <br />Seismic: <br />Seismic Velocity: <br />3,500 <br />feet/second <br />Area: <br />Average Ripping Depth: <br />NA <br />mph <br />Average Ripping Width: <br />NA <br />degrees <br />Average Ripping Length: <br />NA <br />feet <br />Average Dozer Speed: <br />NA <br />feet <br />Average Maneuver Time: <br />NA <br />feet <br />Production per unit area: <br />NA <br />acres/hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: <br />2,490.40 <br />Cu. yds./hr <br />Site Altitude: <br />7,600 <br />feet <br />Altitude Adj: <br />0.93 <br />(CAT HB) <br />Job Efficiency: <br />0.83 <br />(1 shift/day) <br />Net Correction: <br />0.77 <br />multiplier <br />Adjusted Hourly Unit Production: <br />1,922.34 <br />Cu. yds./hr <br />Adjusted Hourly Fleet Production: <br />7,689.36 <br />Cu. yds./hr <br />JOB TIME AND COST <br />Fleet size <br />Unit cost: <br />4 Grader(s) Total job time: <br />56.42 Hours <br />$0.282 Per cu. yd. Total job cost: $122,204 <br />