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Colorado Division of Minerals and Geology <br />_________________________________________ <br />ESTIMATING FOIU1 - MOTOR GRADER WORK <br />Task #: 233 Prep. by: SLB Taek File Name: C00]-233 <br />____________ _________ _____________ <br />Date: 09 /2 8/97 Permit q:C-BO-00] Mine: West Elk Mine <br />____________ _________ _________________________________ <br />Permit Action: Permit Revision No. ] <br />Task Description: Rip all disturbed areas, excepting soil stockpiles <br />_____________________________________________________________ <br />HOURLY EQUIPMENT COST <br />____________________= Basic Machine: CAT 12 SERIES G Horsepower: 135 <br />Att achmen[ kl: N/A Shift Basis: 1/day <br />Attachment q2: Multi-shank ripper ---------- <br />Cos[ Breakdown: -- ------- <br />-------------- Utilization k (DQI dS01 <br />Ownership cost/hr = $18.15 N/A <br />Operating 6 overhaul cost/hr -grader = 518.98 100 <br />-n peer = $1.89 laa <br />Operator cost/hr = $23.13 N/A <br />Total soy[. unit cost/hr = 562`15 Total Elee[ cost/hr: $62.15 <br />MATERIAL QUANTITIES <br />TOCal area to be graded: 54.99 acres <br />Source of quantity take-off: 62 acres minus stockpiles <br />____________________________________________________ <br />HOURLY PRODUCTION <br />Selected grading act ivity/work level: Heavy ripping only <br />Unadjusted hourly unit productron: 0.79 acres/hr ICat Handbook O§n) <br />Job Condition Correc tion Factors: <br />Avg. site altitude ]000 ft. <br />Altitude adjustment: 0`96 (Cat Handbook 3SS) <br />Job efficiency.... 0.83 Its h/day YGA) <br />NeC Job Correction: O. BO <br />Adjusted hourly unit production: 0.63 acres/hr <br />Adjusted hourly fleet production: 0.63 acres/hr <br />JOB COST <br />Fleet size 1 Gra der (sI Total Job Time: 87.01 Hours <br />Unit Cost $98.736 /acre Total <br />_______ Job CosC: $5,407.77 <br />___________ <br />