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Colorado Division of Minerals and Geology <br /> ESTIMATING FORM - BULLDOZER WORK <br /> Task /: 1 Prep. by: CLK Task File Name: M020.1 <br /> Date: 07/24/95 Permit (i:M-80-020 Mine: Braley Sand 8-Gravel <br /> Permit Action: Re-estimate bond <br /> Task Description: Grade site---53 acres <br /> HOURLY EQUIPMENT COST <br /> Basic Machine: Cat D8N Horsepower: 285 <br /> Blade Type: SEMI-UNIVERSAL -------- <br /> Attachment !1: ROPS Cab Shift Basis: 1/day <br /> Attachment N2: 1-shank ripper --------- <br /> Cost Breakdown: <br /> ------------ Utilization X <br /> Ownership cost/hr = 54634 N/A <br /> Operating 8 overhaul cost/hr- dozer = S51.67 100 <br /> -ripper = S4.74 60 <br /> Operator cost/hr = $22.95 N/A <br /> Total eopt. unit cost/hr = S125.69 Total fleet cost/hr: S251.39 <br /> MATERIAL QUANTITIES <br /> Initial Swell Loose <br /> Volume: 14,500.0 BCY Factor: 1.250 Volume: 1B,125.0 LCY <br /> Source of quantity take-off: figures---site measurements <br /> Source of est. swell factor: ref. <br /> HOURLY PRODUCTION M__---�---- <br /> _________________ Job Condition Correction Factors <br /> Avg. push distance: 75 ft. ----------------- <br /> Operator.......... : 0.75 (avg.) <br /> Unadjusted hourly Mat. consistency.. : 0.90 (Cat tbL) <br /> dozer production: 957 LCY/hr Dozing method..... : 1.00 (gen.) <br /> ------- Visibility........ : 1.00 (Avg.) <br /> Material consistency: Job efficiency.... : 0.83 (1sh/day) <br /> Compacted fill or embankment Spoil pile factor. 0.80 (ssd-ac) <br /> -----------------------------^--- Push gradient..... 1.00 (Cat tbL) <br /> Avg, push gradient: 0.00 % (neg) Altitude derati on. 1.00 (Cat tbL) <br /> -------- Material weight... 1.00 (Cat tbl) <br /> Avg. site altitude: 7000 ft. Blade type........ : 1.00 (S,SU,U) <br /> --------- _—_—--------------------_. <br /> Material weight 2300.00 lb/LCY Net Job Correction 0.45 <br /> Mat. Descr.: ------- ---------- <br /> GENERAL FILL Adjusted Unit Prod.: 428.12 LCY/hr <br /> ______ __ — ----- �, ----------- <br /> N Adjusted Fleet Production: 856.23 LCY/hr <br /> JOB COST ----------- <br /> Fleet size : 2 Dozer(s) Total Job Time: 21.17 Hours <br /> Unit Cost : $0.294 /LCY Total Job Cost: $5,321.44 <br />