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Cycle Time <br />Loaded Haul ....... 1.5 minutes <br />Empty Return ...... 2.3 minutes <br />Fixed Time ....... 2~ minutes <br />Total Cycle Time .... 6.1 minutes <br />= Cycle Time + Volume/Cycle <br />= 6.1 min/cycle + 25 yds3/cycle <br />= 4.1 yds3/min = 205 yds3/hr. <br />IVfoffat =1,480 yds3/acre + 189.4 yds3/hr <br />= 7.8 hrs/acre. <br />Ridge = 980 yds3/acre + 189.4 yds3/hr <br />= 5.2 hrs/acre. <br />b. Hourly Labor/Equipment Costs <br />Labor Equipment <br />wa rental gperational Total <br />$17.95 $131.13 $71.40 $220.48 <br />c. Unit Cost to Replace Topsoil = (Labor Rate + Equipment Rate} x Production Rate <br />Moffat = $220.48/hr x 7.8 hrs/acre <br />_ $1,726.36/acre. <br />W.Ridge = $220.48/hr x 5.2 hrs/acre <br />_ $1,144.29/acre. <br /> West Ridge Costs Moffat Costs <br />~y Yea r. (Reclamation x ni . oa .) + ( Reclamation x Unit Cost) _ <br />1 184 acres $1,144.29/acre 279 acres S1,72636/acre <br />2 104 acres "" 224 acres "" <br />3 104 acres "" 204 acres "" <br />4 104 acres "" 204 acres "" <br />5 104 acres "" 209 acres "" <br />Ideal Production <br />Production Factor <br />Adjusted Production <br />0.925 (altitude). <br />= Ideal Production x Production Factor <br />= 205 yds3/hr x 0.925 <br />= 189.4 yds3/hr. <br />Actual Production Rate =Volume iVioved/Area + Actual Production Rate <br />Yearly Coct <br />$ss2,2o4 4U416W <br />$505,710 <br />$471,183 <br />$471,183 <br />$479,515 <br />• 7 <br />December 12, 1991 <br />• 637 D P•P <br />