2008-04-15_REVISION - M1980244 (309)

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• Roads internal to the mine areas will vary constantly as they are developed for either ore recovery or mine backfill. These ramps will typically be within the footprints of the surface mines. The actual location of any haul road may vary over time as a function of the mining plan. The haul road segments will accommodate the haulage, loading, and support traffic on the site. Haul roads are designed to allow two-way traffic of large haul trucks. Axle-high safety berms will be provided, as required by the Mine Safety and Health Administration, along each side of the road. Where necessary, such berms also are formed along the centerline. The total road width is normally about 100 feet, and the net lane width is often about 36 feet. The berms will contain openings, as necessary, to allow drainage of water from the road surface to ditches and swales The haul road alignments may follow the topographic ridges or run along or across contours on hillsides. In the mine areas, bedrock is at or near the surface and site preparation will, in general, be limited to growth medium removal and stockpiling and cut-and-fill. Foundation preparation for fill placement will be • minimal, except as required in specific instances such as culvert locations. In general, soils will be removed to expose a competent, stable material that will be cut to provide fill. Where the soil layer is sufficiently thick to make the material available for salvage (greater than six inches over a greater than one acre area) and where it lays on topography and subsurface material that allows simple mechanical recovery, it will be stockpiled for assisting with revegetation. Overburden material may be used for road fill as well as local materials derived from the cut. Fill slopes for the haul roads generally will be constructed at the angle-of-repose of the fill material. In areas of culvert installations, fill placement will be conducted in a manner that maintains the integrity and function of the culvert. During operations, haul road dust will be suppressed using the current methodologies. CC&V presently is using water for dust suppression on short-term roads and may use magnesium chloride or other suitable dust suppressants for roads in place for prolonged periods. The water used in dust control will be supplied from the main water storage tank unless another supply becomes • available. Cripple Creek & Victor Gold Mining Company Cresson Project Mine Life Extension 5-23