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Bulldozer Worksheet Cont'd Task#001 Page 1 of 2 <br /> BULLDOZER WORK <br /> Task description: Backfill and grade highwall to 3H:1V <br /> Site: Buffalo Stone Quarry Permit Action: 2025 Inspection Permit/Job#: M2007050 <br /> PROJECT IDENTIFICATION <br /> Task#: 001 State: Colorado Abbreviation: None <br /> Date: 3/17/2025 County: Las Animas Filename: 1 <br /> User: AMG <br /> Agency or organization name: DRMS <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D8T-8SU <br /> Horsepower: 310 <br /> Blade Type: Semi-Universal <br /> Attachment: 3-shank ripper <br /> Shift Basis: 1 per day <br /> Data Source: (CRG) <br /> Cost Breakdown: <br /> Utilization% <br /> Ownership Cost/Hour: $173.32 NA <br /> Operating Cost/Hour: $109.71 100 <br /> Ripper own.Cost/Hour: $14.53 NA <br /> Ripper op.Cost/Hour: $7.95 100 <br /> Operator Cost/Hour: $38.59 NA <br /> Total unit Cost/Hour: $344.10 <br /> Total Fleet Cost/Hour: $344.10 <br /> MATERIAL QUANTITIES <br /> Initial Volume: 1,099 <br /> Swell factor: 1.165 <br /> Loose volume: 1,280 LCY <br /> Source of estimated volume: Highwall 15 ft deep by 500 ft long <br /> Source of estimated swell factor: Cat Handbook <br /> HOURLY PRODUCTION <br /> Average push distance: 70 feet <br /> Unadjusted hourly production: 1,093.7 LCY/hr <br /> Materials consistency description: Rock,avg.ripped or blasted 0.7 <br /> Average push gradient: 0% <br /> Average site altitude: 5,170 feet <br /> Material weight: 2,9001bs/LCY <br /> Weight description: Decomposed rock-50%Rock,50%Earth <br /> Job Condition Correction Factor Source <br /> Operator Skill: 0.750 (AVG.) <br /> Material consistency: 0.700 (CAT HB) <br /> Dozing method: 1.000 (GEN.) <br /> Visibility: 1.000 (AVG.) <br /> Job efficiency: 0.830 (1 SHIFT/DAY) <br />