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5. Licht-Use Roads to Powerline Substation <br />A light-use road and a permanent road will be used to access the substation. The light-use road will run 4,800 feet <br />to the substation and will follow the existing "fence" road. The light-use road will be designed per the <br />• requirements of Rule 4.03.3, Light-Use Roads. The light-use road will be sufficiently maintained in order to assure <br />erosion control. Surfacing of the road will be adequate for the general use of the road, and during winter and <br />spring, snow removal. Access to the light-use road and substation will also require the utilization of a permanent <br />road approved by the CMLRD on_February 3,_ 1-988{Technical-Revision TR87-12; Permit C-81-071). This <br />permanent road runs 12,000 feet from Country Road #27 and is maintained under CYCC's Permit C-81-071. The <br />roads will be maintained by TCC. Upon substation removal, the light-use road will remain as part of the approved <br />postmining use of ranch management. The light-use and permanent road are shown on Map 39, Substation and <br />Powerline Location. <br />A light-use road will be used to access a subsidence borehole meter at Mine 2 (MR89-37). The road will be <br />reclaimed upon completion of the subsidence borehole metering. <br />6. Other Licht-Use Roads <br />In addition to the above light-use road, a number of other roads of this classification are located around the <br />property. The other roads include the following; Low-Quality Coal Stockpile Road, West Gate Road, Fish Creek <br />Borehole Road, Escape Shaft/Borehole Site Road, EMD Dewatering Borehole Road and Lieske Substation Road. <br />All of these roads are shown on Map 24A and have been designed and constructed in conformance with Rule <br />4.03.3. <br />General <br />No bridges are planned under this Pemut Revision application. Al] culverts with an end azea of less than 35 square <br />feet will be designed to pass, at a minimum, the 10-year, 24-hour event. Should a culvert with an end azea greater <br />• than 35 square feet be needed, it will be designed to safety pass the 20-year, 24-how event. The culverts have also <br />been designed and constructed to sustain the vertical soil presswe, the passive resistance, and the weight of the <br />vehicles using the road. Trash-racks and debris basins will be installed where needed to avoid plugging, collapse, <br />and erosion at the inlets and outlets. <br />Culverts for road surface drainage were installed as specified in Rule 4.03.2(4)(e)(v). These culverts have an end <br />area of less than 35 square feet, are designed to carry, at a minimum, the flow from a 10-year, 24-how event, cross <br />the road at not less than a 30 degree angle, and will be protected at the inlet and outlet by rock riprap, if required. <br />The culverts are covered by compacted fill to a depth of at least 1 foot. <br />No natwal drainage channels will be altered with this Permit Revision application. All natwal drainage channels <br />will be crossed using culverts of adequate size, so as not to affect the normal flow or gradient of the stream. <br />Drainage from the access/haulroad will meet the requirements of Rule 4.05. The roads have been constructed and <br />will be maintained to minimize erosion. The water-control systems have been designed to safely pass, at a <br />minimum, the peak runoff from a 10-year, 24-how precipitation event. <br />Cut siopes will not exceed the above specified standards. Temporary check dams, diversion ditches, etc., were built <br />as required during road construction to meet applicable water quality standards throughout the construction period. <br />Al] cut slopes will be seeded to aid in establishing vegetation and to minimize erosion. <br />Al] vegetative material and topsoil will be removed from all embankment foundations during construction to <br />increase stability. Topsoil was and will be stockpiled in accordance with Rule 4.06.3 for use in final reclamation <br />operations. Embankments are not steeper than 1.SH:1 V. <br />•All embankment slopes have been mechanically stabilized and will be seeded to aid in establishing vegetation and <br />to minimize erosion. Mechanical stabilization consisted of funowing and "cat-tracking". The stabilized slope will <br />be broadcast seeded during the first appropriate planting season. <br />TR06-55 2.05-74.2 07/26/06 <br />