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Page 14 of 80 <br />BULLDOZER RIPPING WORK <br /> <br />Task description: Rip Facilities Area <br /> <br />Site: Northfield Mine Permit Action: 2014 Updated Costs Permit/Job#: C2006085 <br /> <br />PROJECT IDENTIFICATION <br /> <br />Task #: 014 State: Colorado Abbreviation: None <br />Date: 7/28/2014 County: Fremont Filename: C085-014 <br />User: JHB <br /> <br />Agency or organization name: DRMS <br /> <br />HOURLY EQUIPMENT COST <br /> <br />Basic Machine: Cat D9T - 9SU Horsepower: 405 <br />Ripper Attachment: 3-Shank Ripper Shift Basis: 1 per day <br /> Data Source: (CRG) <br /> <br /> <br />Cost Breakdown: <br /> Utilization % <br />Ownership Cost/Hour: $81.10 NA <br />Operating Cost/Hour: $143.16 100 <br />Ripper Operating Cost/Hour: $8.91 100 <br />Operator Cost/Hour: $38.01 NA <br /> <br />Total Unit Cost/Hour: $271.17 <br /> <br />Total Fleet Cost/Hour: $271.17 <br /> <br />MATERIAL QUANTITIES <br />Selected estimating method: Area <br /> <br /> <br />Alternate Methods: <br /> <br />Seismic: NA Bank Volume: NA BCY NA <br />Area: 21.30 acres Rip Depth (ft): 3.00 Volume: 103,092 BCY or CCY <br /> <br />Source of estimated quantity: Map 12 <br /> <br />HOURLY PRODUCTION <br /> <br /> <br />Seismic: <br />Seismic Velocity: NA feet/second <br /> <br />Area: <br />Average Ripping Depth: 2.63 mph <br />Average Ripping Width: 7.67 degrees <br />Average Ripping Length: 150.00 feet <br />Average Dozer Speed: 88.00 feet <br />Average Maneuver Time: 0.25 feet <br />Production per unit area: 0.811 acres/hour <br /> <br />Job Condition Correction Factors <br /> <br />Unadjusted Hourly Unit Production: 0.811 Acres/hr <br /> <br />Site Altitude: 5,400 feet <br />Altitude Adj: 1.00 (CAT HB) <br />Job Efficiency: 0.83 (1 shift/day) <br />Net Correction: 0.83 multiplier <br /> <br />Adjusted Hourly Unit Production: 0.67 Acres/hr <br />Adjusted Hourly Fleet Production: 0.67 Acres/hr <br /> <br />JOB TIME AND COST <br /> <br />Fleet size: 1 Grader(s) Total job time: 31.65 Hours <br /> <br />Unit cost: $402.958 Per acre Total job cost: $8,583 <br /> <br /> <br />CIRCES Cost Estimating Software <br />