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• <br />~ III IIIIIillllllllll <br />Jim McArdle <br />GEC Bid <br />Harry Ranney <br />I have reviewed the bid document and cross sections of the East Pit <br />submitted by Preston Meese. I have determined that his estimates <br />of earth work volumes to be moved to be relatively accurate and <br />that by using his methods of slope reduction, significant cut and <br />fill volumes can be reduced. By lowering the slope of the fill on <br />the East pit Drainage from 5~ to 3$ or less, a 120,00 BCY reduction <br />of cut and fill can be realized. The reduction of the slope also <br />eliminates the need to haul an additional 56,000 BCY of material <br />from the North End area. These coupled with the slope configuration <br />change at Chen's Hill, which can result in a net reduction of <br />approximately 50,000 BCY, reduce my original estimate of material <br />to be moved from 600,000 BCY to 374,000 BCY. Preston Meese's <br />estimate of material to be moved was around 325,000 BCY therefore <br />I believe his estimate to be valid. <br />I also reviewed his proposed equipment list and find that if he <br />encounters any construction delays, he will not be able to complete <br />the job on time. Therefore, I recommend he add an additional DS <br />Caterpillar crawler and one more scraper, preferably a 637 but <br />another 627 to compliment the one he has might be adequate. <br />One last item of concern is the amount of erosion mat and riprap <br />required at the south end of the East Pit. Preston's method of <br />reducing the quantity of material to be moved ended in reducing the <br />elevation of the south end of the pit by approximately 35-40 feet <br />thereby increasing the amount of erosion fabric required. However, <br />in my original estimate, I factored in a significant overage for <br />possibilities such as this, therefore, I do not believe any <br />additional material will be required. <br />It is my recommendation that the contract should be awarded to <br />Preston Meese if he can arrange to rent the additional equipment if <br />necessary. <br /> <br />