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2F. Refuse Pile Haulroads <br />A new haulroad (formally classified as an access road) for construction and utilization of the coal refuse pile was <br />established parallel to the eastern margin of the pile (see Map 24). The Refuse Pile Haulroad extends from eastern edge <br />. of the Refuse Pile (Coal Waste Disposal Site) to the Reject Belt and Stockpile southeast of the main Run-of--Mine Coal <br />Stockpile. The road was constructed in accordance with the dimensional specifications detailed on Figure 22, Access <br />Road Typical Sections, and surfaced with gavel or other suitable material. Northwest Colorado Consultants evaluated <br />the existing road and recommended that 13 inches of pit run gavels and 5 inches of Class VI base course be used to <br />upgade the road to a haulroad. The road surface is approximately 20 feet wide, with an overall gradient of <br />approximately 6.5 percent. The centerline profile for the Refuse Pile Haulroad and typical hauh-oad cross-sections <br />are shown on Map 30, Road Profiles and Cross-Sections. <br />Access to the refuse pile was routed around completed portions of permanent diversion ditch RDA-2. Ditch crossings <br />~ maybe required, as refuse pile construction proceeds, for the temporary diversion ditch established upgradient from the <br />working area of the pile. Crossing sites will be suitably protected with durable material to prevent excessive erosion or <br />an appropriately sized culvert will be installed. Culvert sizing documentation will be provided to the Division prior to <br />installation, if this option is utilized. <br />Topsoil salvaged from construction of the original access road is stored in topsoil stockpile SF-12, located adjacent to <br />the construction site. Road reconstruction proceeded in stages from north to south in approximately 500' segments in <br />order to maintain reasonable access to the active area of the refuse pile. In order to facilitate vehicle movement through <br />the refuse pile, a short haulroad segment was constructed off of the eastern nose of the refuse pile. The design and <br />certification of this road segment is presented in Exhibit 25F. Culvert sizing and designs for [he Refuse Pile Haulroad <br />was previously approved in MR96-140. <br />2G. Batch WeiEh/Loadout Haulroad <br />The Batch Weigh Loadout Haulroad is required for access to the Batch Weigh/Loadout facility to facilitate clean- <br />• up and removal of spilled coal and general maintenance of the area. The road ties-in to existing Haulroad C, <br />crosses Foidel Creek, and runs along the toe of Pond C to the Batch Weigh/Loadout facility. The road was <br />originally approved through TR97-30 on November 24, 1997. MROl-175 modified the original approval to reflect <br />relocation of the road to shorten the road and reduce potential wetland impacts. A subsequent Technical Revision <br />(TR02-41) further modified the design to reflect the use of smaller equipment to access the site. The revised design <br />reflects the use of 10-ton dump trucks as opposed to the 100-ton trucks considered in the original design. The <br />revised design is presented in Exhibit 48-2. The road has a 30-foot top width and is approximately 550 feet in <br />length. Prior to entering the Batch Weigh Loadout, a 40-foot length of road with a 30-foot top width and 20-foot <br />radius is provided to allow trucks and equipment to tum around. The hauhoad has been designed in accordance <br />with Section 4.03.1(3) to support afully-loaded haul truck. <br />The original design has been retained in the permit in the event that larger trucks are required in the future requiring <br />that the road be upgraded [o the previously approved design. The revised design calls for a top width of 24 feet, <br />• <br />TR06-55 2.05-71 10/06/06 <br />