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RULE 2 - PERMITS <br />the temporary seed mixture and mulched (if necessary) to stabilize the slopes and minimize erosion <br />potential. <br />Road A /A1, Road B, Road C, Road E -1 and Road E -2 will be retained as permanent postmine <br />features after the mine operation ceases to be consistent with the Seneca II Mine approved post <br />mining land use, as well as the proposed Peabody Sage Creek Mine postmining land use. The road <br />width will be reduced to 20 feet and drainage reestablished as part of the final road configuration. <br />A sign identifying the name, address, and telephone number of the mine permittee, along with the <br />current permit number and permitting agency and contact information will be posted at the entrance <br />to the permit area on the mine access road, and maintained, consistent with applicable provisions of <br />Rules 4.02.2 and 4.02.4. <br />Haulroads - Haulroads will be used for coal haulage, overburden haulage and mine development <br />waste rock haulage; the haulroads include: <br />• Road A/A -1 <br />• Road B <br />• Road D <br />Road layouts are shown on Map 2.05.3 M3, Road Plan View and Profiles, Map 2.05.3 M1A, Mine <br />Facilities Area (South End) and Map 2.05.3 M1B, Mine Facilities Area (North End). Coal haulage <br />will occur on Road A/B /A -1, from the permit boundary at Routt County Road 27A to the coal <br />stockpile area, a distance of approximately 1.5 miles. Haul roads will be a minimum of 20 feet <br />wide and constructed with a compacted road base and gravel surfacing. Road A, A -1, B, and D will <br />provide for two -way haulage of both full and empty tractor - trailer haul- trucks moving coal from the <br />coal stockpile to the customers receiving facility. <br />Although the posted speed limit for haul roads will be 25 mph, road horizontal alignment is based <br />on a 40 mph design speed, for safety reasons. Horizontal and vertical alignment have been <br />carefully coordinated so that no horizontal curve begins or ends at the crest or sag of a vertical <br />curve, and in such a manner as to comply with regulatory cross -slope and grade requirements, <br />control erosion, simplify drainage design, and maximize safety and environmental protection. <br />Centerline profiles of the haul roads are presented on Map 2.05.3 M3. A schematic of the typical <br />haul road cross section is presented in Figure 2.05.3 -F1, Typical Haulroad Cross - Section. <br />All haulroads will be constructed in accordance with Rule 4.05.1. Typical construction practices for <br />haulroads will involve implementing temporary drainage and sediment control measures, clearing <br />and grubbing vegetation (limited to the width needed for the roadway and drainage control), and <br />recovery and stockpiling of available soil materials. All soil material recovered from roads and <br />other areas will be placed in the topsoil stockpile located adjacent to PECOCO Pond (see Map <br />2.05.3 M1A). Potentially acid- and/or toxic - forming or frozen materials will not be used for either <br />road fill or as road surfacing materials. Road fill materials will be borrowed from the overburden <br />excavated from the portal area. <br />Road base and surfacing designs for the haul roads are based on site soil properties and the methods <br />outlined in the U.S. Department of the Interior, Bureau of Mines, Information Circular 8758, Design <br />of Surface Mine Haulage Roads - A Manual (Kaufman and Ault, 1977). <br />TR07 -13 2.05 -23 Revision 07/2013 <br />