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• Mine Area Yoast <br />Project Facilities-Permanent Roads <br />Task Grading to Blend/Drain <br />NORKSHEE7 N0. PR -3 <br />PRODUCTIVITY FOR D02ER USE--GRADING <br />Dozer Activity: Grading the permanent roads (the 34' 8 12') to drain and blend into <br />surrounding topography. <br />Dozer Used: D-11N, SU Blade <br />Description of Dozing: 100 x 22,000 = 51 ac. <br />Productivity Calculations: <br />Operating; 75 <br />• Grade: see EMF <br />Material Factor: see EMF <br />Push Distance: see EMF <br />Dozing Factor: see EMF <br />Visibility: 90 <br />Altitude: 91 <br />Gual Tilt: 100 <br />Spoil Pile Factor: see ENF <br />Minutes Norked per Hour: 50 <br />Bank Material Density: see EMF <br />Loose Material Density: see ENF <br />Direct Drive Trans: 100 <br />Total Adj. Factor: 0.338 <br />Hourly Production = _2 mi/hr x 19ft. x 5280 ft/mi x 1 ac/43560 ft2 = 4 ac/hr <br />speed of t. blade <br />width <br />Net Hourly Production = _4 ac/hr x 0.338 = 1-35 ac/hr hours = 51 ac/1.35 ac/hr = 38 hrs. <br />Hrly prod op.adj.factor <br />Cos[ per Hour = 5236.22 <br />Total Cost = 38 hrs, x 5236.22 cost/hr = S 8.977 <br />• REFERENCES: <br />Table 25-2-5 <br />Attachment 25-2 <br />25-4-9 <br />