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O <br />- /. • • <br />THEN: (25 Cubic yards/scraper)(4 scrapers)(12 loads/hr) = 1200 cubic yards/hr <br />ro~~ ~~.~Y <br />THEREFORE: ($~hr)/(1200 cubic yards/hr) _ $0~7cubic yard <br />/~ (ao~,oo ~,g`/ ~oy~oo a ~Oo <br />TOTAL BACKFILLING COST` _ ~51~60 yards x 0,54'/yard = $}~00ff- (for overburden) <br />UNIT COSTS FOR TOPSOILING: <br />From p. 500, topsoil load factor = 0.7 <br />U~ <br />Add second grader eq ~/ling $43Jhr. Add 8th operator @ $14/hr. Total extra <br />cost for topsoil = $53Jhr. TY~erefore additional percentage cost for topsoil <br />s/ eaa+- ~.~% <br />handling and spreading =,$a3 36~si =,~: <br />. ~`r l.o~ ~~~ <br />Cost for handling topsoil = $0:54/cubic yard x-1-988 = $9~eubic yard <br />. y/ ~ I,v~ <br />Coversion for load factor: ($O..b~J'/cubic yard)(0.8)/(0.7) _ $B-fs~jcubic yard <br />i, o~ as <br />TOTAL TOPSOILING COST: 41,000 yards x ~$6`6~{yard =~tT4-70~ <br />TOTAL COSTS (REGRADING & TOPSOILING) _ ~j 5`~~/ ~ YO <br />