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ROADS ~/ 1. Costs have been revised to reflect a single shift operation. ~2. As long es the costs have been allocated for the task and they are comparable between equipment, then the objective has been met, whether its with a Fiat-Allis, John Deere or Kamotsu. The D10N was used for ease of estimating, the equipment is on Site already (for this estimate) end the cost, in this situation is actually higher. Costs have been revised using a D8N dozer. //i ~/ 3. Ripping costs have now been included. TOPSOIL REPLACEMENT 1. Topsoiling can be accomplished until nightfall without light plants on second shift and then with lights after dark. In the interest of resolving the bonding issues, topsoil operations will be accomplished on first shift only. Cost have been revised accordingly. /2. A more economical method of ballast removal is to use scrapers as noted. Ballast is equivalent to crushed rock and can be hauled by scraper from areas that need to be cut to areas that will be dozed in from the side slopes. Costs have been revised to be in line with the Divisions scraper costs. The MEANS estimating guide uses a 8-14 crew which consist of a foreman, four laborers, an equipment operator and backhoe. This results in a much higher Lost than using a scraper. ~. The support equipment is normally used in large earthmoving or topsoiling operations to construct/maintain roads and keep the dust down. In this situation the scrapers will be running on the existing railroad bed end do not require the same support as topsoil operations. Costs have been added for support as needed. I/4. This question and answer is related to question No. 2 above. A dozer could be used for very short push distances. This is not the case in this situation. Peabody estimated the haul distance one way es being 3000 ft. A loader could not be used due to this same argument, [he distance is much too far to load and carry economically. 12