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BULLDOZER RIPPING WORK <br />Task description: AM1 Rip process area and access road <br />Site: Juniper Quarry Permit Action: SI -1 Permit/Job #: M1982141 <br />PROJECT IDENTIFICATION <br />Task #: 04A State: Colorado Abbreviation: None <br />Date: 1/13/2012 County: Moffat Filename M141 -04a <br />User: DMC <br />Agency or organization name: DRMS <br />HOURLY EQUIPMENT COST <br />Basic Machine: <br />Ripper Attachment: <br />Cost Breakdown: <br />Cat D8T - 8SU <br />3 -Shank Ripper <br />Ownership Cost/Hour: <br />Operating Cost/Hour: <br />Ripper Operating Cost/Hour: <br />Operator Cost/Hour: <br />Total Unit Cost/Hour: <br />JOB TIME AND COST <br />Fleet size: 1 Ripper(s) <br />Unit cost: $321.070 Per acre <br />$65.28 <br />$102.81 <br />$6.49 <br />$38.49 <br />$213.07 <br />Horsepower: 310 <br />Shift Basis: 1 per day <br />Data Source: (CRG) <br />Utilization % <br />NA <br />100 <br />100 <br />NA <br />Total Fleet Cost/Hour: $213.07 <br />MATERIAL QUANTITIES <br />Alternate Methods: <br />Seismic: NA Bank Volume: NA BCY NA <br />Selected estimating method: Area <br />Area: 4 acres Rip Depth (ft): 2.00 Volume: 13,552 BCY or CCY <br />Source of estimated quantity: Previous estimate (GRM 7/13/2005) <br />HOURLY PRODUCTION <br />Seismic: <br />Seismic Velocity: NA feet/second <br />Area: <br />Average Ripping Depth: 2.56 mph <br />Average Ripping Width: 7.08 degrees <br />Average Ripping Length: 300.00 feet <br />Average Dozer Speed: 88.00 feet <br />Average Maneuver Time: 0.25 feet <br />Production per unit area: 0.800 acres /hour <br />Job Condition Correction Factors <br />Unadjusted Hourly Unit Production: 0.800 Acres /hr <br />Site Altitude: 6,600 feet <br />Altitude Adj: 1.00 (CAT HB) <br />Job Efficiency: 0.83 (1 shift /day) <br />Net Correction: 0.83 multiplier <br />Adjusted Hourly Unit Production: 0.66 Acres/hr <br />Adjusted Hourly Fleet Production: 0.66 Acres/hr <br />Total job time: <br />Total job cost: $1,348.00 <br />6.33 Hours <br />CIRCES Cost Estimating Software <br />