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n <br /> ' o Transit Mix Concrete Co. <br /> Response: Reclamation of the access road will include ripping and topsoiling. Subsoil <br /> will not be placed on the road prior to topsoil replacement. <br /> 104) Will the F2 backfill area require additional grading during mining phase III? If so, please <br /> be sure costs for this specific task are included in the bond estimate, and the task worksheet <br /> is appropriately labeled. <br /> Response: The mine will be practicing contemporaneous reclamation as soon as available <br /> area is regraded. This will be carried forward through each of the phases. During Phase III <br /> the north and east facing areas of F 1 and F2 will have already been regraded to the design <br /> reclamation slope. The south slope of F2 is end-dumped at the angle of repose, and costs <br /> associated with regrading this slope and creating the channel have been included in the <br /> calculations. This slope would be graded to a 3H:1 V slope. The only additional work will <br /> be the drainage channel and placing material in the pit area between F2 and the highwall. <br /> Therefore, volumes and costs have not been provided as this work is to be completed <br /> during Phase III. <br /> 105) Please specify all areas that will be ripped for reclamation (e.g., pit floor, haul roads), and <br /> include estimated acreages for each area. Please be sure costs for this specific task are <br /> included in the bond estimate, and the task worksheet is appropriately labeled. <br /> Response: The text in Exhibits E and L have been updated to specify the areas that will be <br /> ripped. These include access road, haul roads, plant site, and pit floor, and the ripping will <br /> be performed to breakup these compacted areas so they provide a suitable subgrade. The pit <br /> floor and haul roads will be ripped, and costs have been included in the bond estimate. <br /> 106) On page 1 of the cost estimate, the direct cost given for mobilization and demobilization is <br /> $30,100. Based on the Division's experience, this amount seems low given the amount of <br /> equipment required for reclamation of the site. Please provide a separate worksheet for <br /> mobilization/demobilization that lists all equipment to be mobilized/demobilized for <br /> reclamation, numbers of equipment by type, and the nearest major city or town within the <br /> project area region that could supply the required equipment. If <br /> mobilization/demobilization costs for demolition have already been factored into the <br /> Demolition portion of the estimate, this equipment need not be included in the requested <br /> mobilization/demobilization worksheet. <br /> Response: The reclamation cost estimate assumes 7 pieces of equipment: 3x773 haul <br /> truck, a D-9 bulldozer, a 12M grader, a 990 loader, and a 10,000-gal water truck. This <br /> equipment is standard construction equipment available in a city such as Colorado Springs. <br /> The mobilization and demobilization cost for 7 pieces of equipment results in a cost of <br /> $4,300 per piece of equipment, which allows more than a day's worth of labor and <br /> equipment time for each direction. RSMeans suggests that each piece of equipment can be <br /> delivered to the site in 4 hours or less. <br /> Hitch Rack Ranch Quarry(M-2017-049) <br /> Response to Comments—March 9,2018 <br />