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Bulldozer Worksheet Cont’d Task # 001 Page 1 of 2 <br /> <br /> <br />BULLDOZER WORK <br /> <br />Task description: Rough grading and ripping <br />Site: Florence Sand & Gravel Pit Permit Action: 2015 Update Permit/Job#: M1992051 <br /> <br />PROJECT IDENTIFICATION <br />Task #: 001 State: Colorado Abbreviation: None <br />Date: 9/10/2015 County: Fremont Filename: M051-001 <br />User: TC1 <br />Agency or organization name: DRMS <br /> <br />HOURLY EQUIPMENT COST <br />Basic Machine: Cat D8T - 8U <br />Horsepower: 310 <br />Blade Type: 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: $69.05 NA <br />Operating Cost/Hour: $108.22 100 <br />Ripper op. Cost/Hour: $1.86 25 <br />Operator Cost/Hour: $38.01 NA <br />Total unit Cost/Hour: $217.14 <br />Total Fleet Cost/Hour: $217.14 <br /> <br />MATERIAL QUANTITIES <br />Initial Volume: 45,617 <br />Swell factor: 1.125 <br />Loose volume: 51,319 LCY <br />Source of estimated volume: (37.7ac)(43560sf/ac)(0.75’D) / 27 = 45,617 CY <br />Source of estimated swell <br />factor: <br />Cat Handbook <br /> <br />HOURLY PRODUCTION <br />Average push distance: 65 feet <br />Unadjusted hourly <br />production: <br />1,344.1 LCY/hr <br /> <br />Materials consistency description: Dry, non-cohesive 0.8 <br /> <br />Average push <br />gradient: <br />0 % <br />Average site altitude: 5,240 feet <br /> <br />Material weight: 2,650 lbs/LCY <br /> <br />Weight description: Decomposed rock - 25% Rock, 75% Earth <br />Job Condition Correction Factor Source <br />Operator Skill: 0.750 (AVG.) <br />Material consistency: 0.800 (CAT HB)