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BULLDOZER RIPPING WORK <br />Task description: Rip Facilities Area <br />Permit Action: 2012 Bond <br />Site: Northfield Mine Recalculation <br />PROJECT IDENTIFICATION <br />Task #: 014 State: Colorado <br />Date: 1/25/2012 County: Fremont <br />User: JRS <br />Pennit /:lob #: C2006085 <br />Abbreviation: None <br />Filename: C085 -014 <br />Agency or organization name` DRMS <br />HOURLY EQUIPMENT COST <br />Basic Machine: Cat D9T - 9SU Horsepower: 405 <br />Ripper Attachment: 3 -Shank Ripper Shift Basis: 1 per day <br />Data Source: (CRG) <br />Cost Breakdown <br />Alternate Methods <br />Seismic: NA Bank Volume: NA BCY NA <br />Area: 21.30 acres Rip Depth (ft): 3.00 Volume 103,092 BCYor CCY <br />Source of estimated quantity: Map 12 <br />HOURLY PRODUCTION <br />Seismic Velocity: <br />NA <br />feet /second <br />Utilization % <br />Ownership Cost/Hour: <br />$80.19 <br />Average Ripping Depth: <br />NA <br />Operating Cost/Hour: <br />$140.68 <br />7.67 <br />100 <br />Ripper Operating Cost/Hour: <br />$7.17 <br />feet <br />100 <br />Operator Cost/Hour. <br />$38.49 <br />Average Maneuver Time: <br />NA <br />Total Unit Cost/Hour: <br />$266.52 <br />0.811 <br />Total Fleet Cost/Hour <br />$266.52 <br />MATERIAL QUANTITIES <br />Selected estimating <br />method: Area <br />Alternate Methods <br />Seismic: NA Bank Volume: NA BCY NA <br />Area: 21.30 acres Rip Depth (ft): 3.00 Volume 103,092 BCYor CCY <br />Source of estimated quantity: Map 12 <br />HOURLY PRODUCTION <br />Seismic Velocity: <br />NA <br />feet /second <br />Area: <br />Average Ripping Depth: <br />163 <br />mph <br />Average Ripping Width: <br />7.67 <br />degrees <br />Average Ripping Length: <br />150.00 <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 />0.811 <br />acres /hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: <br />0:811 <br />Acres /hr <br />Site Altitude: <br />5,400 <br />feet <br />Altitude Adj: <br />1.00 <br />(CAT HB) <br />Job Efficiencv: <br />0.83 <br />(1 shift /day) <br />Net Correction: <br />0.83 <br />multiplier <br />Adjusted Hourly Unit Production: <br />0.67 <br />Acres/hr <br />Adjusted Hourlv Fleet Production: <br />0.67 <br />Acres /hr <br />JOB TIME AND COST <br />Fleet size: 1 Ripper(s) Total job time: 31.65 Hours <br />Unit cost: $396,048 Per acre Total job cost: $8,436.00 <br />CIRCES Cost Estimating Software <br />