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Page 42 of 51 <br />BULLDOZER RIPPING WORK <br />Task description: Rip 1.4 Acres of DWDA TR66 <br />Site: New Elk Mine Permit Action: 2011 Midterm Review Permit/Job #: C1981012 <br />PROJECT IDENTIFICATION <br />Task #: 168 State: Colorado <br />Date: 10/24/2012 County: Las Animas <br />User: JHB <br />Agency or organization name: DRMS <br />HOURLY EQUIPMENT COST <br />Basic Machine: Cat D9T - 9SU <br />Ripper Attachment: 1 -Shank Ripper <br />Seismic: <br />Area: <br />Cost Breakdown: <br />Abbreviation: None <br />Filename: CO 12 -168 <br />Horsepower: 405 <br />Shift Basis: 1 per day <br />Data Source: (CRG) <br />Utilization % <br />Ownership Cost /Hour: $81.85 NA <br />Operating Cost/Hour: $140.68 100 <br />Ripper Operating Cost/Hour: $9.64 100 <br />Operator Cost/Hour: $38.49 NA <br />Total Unit Cost/Hour: $270.66 <br />Total Fleet Cost/Hour: $270.66 <br />MATERIAL QUANTITIES Selected estimating method: Area <br />Alternate Methods: <br />NA Bank Volume: NA BCY <br />1.40 acres Rip Depth (ft): 2.00 <br />Source of estimated quantity: <br />HOURLY PRODUCTION <br />Seismic: <br />Volume <br />NA <br />4,517 BCY or CCY <br />Seismic Velocity: <br />NA <br />feet/second <br />Area: <br />Average Ripping Depth: <br />4.05 <br />mph <br />Average Ripping Width: <br />6.08 <br />degrees <br />Average Ripping Length: <br />400.00 <br />feet <br />Average Dozer Speed: <br />88.00 <br />feet <br />Average Maneuver Time: <br />0.25 <br />feet <br />Production per unit area: <br />0.699 <br />acres /hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: <br />0.699 <br />Acres /hr <br />Site Altitude: <br />7,450 <br />feet <br />Altitude Adj: <br />1.00 <br />(CAT HB) <br />Job Efficiency: <br />0.83 <br />(1 shift /day) <br />Net Correction: <br />0.83 <br />multiplier <br />Adjusted Hourly Unit Production: <br />0.58 <br />Acres /hr <br />Adjusted Hourly Fleet Production: <br />0.58 <br />Acres /hr <br />JOB TIME AND COST <br />Fleet size: 1 Grader(s) <br />Total job time: <br />2.41 <br />Unit cost: <br />$466.819 Per acre Total job cost: <br />$654.00 <br />Hours <br />CIRCES Cost Estimating Software <br />