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design for the haul roads had been prepared based on the anticipated <br />• volume of traffic and the weight and speed of vehicles to be used. The <br />Colowyo Coal haulage fleet used for transport of coal from the primary <br />crusher to the Gossard Loadout consists of highway trucks. All haulage <br />vehicles will have a maximum operating speed under 45 miles per hour. <br />The haul roads are located on stable terrain to minimize erosion. As <br />shown on the Existing Structures - North Map (Map 21), the haul road A <br />crosses Taylor Creek, and has been maintained according to the. <br />requirements of 4.03.1(4). The grade and pitch requirements specified <br />in 4.03.1(3), Design and Construction, are met for both haul roads. <br />Colowyo will maintain the haul roads throughout the life of the mine with <br />repairs including blading, filling of potholes, and replacement of road <br />surface as necessary. Likewise, watering for dust control will be <br />implemented as necessary. <br />Section 2.05.5 discusses the changes to be made to the main haul road, <br />a portion of which will be left in place after completion of mining to <br />retain access into the area to compliment the post mining land use. <br />4.03"2 Access Roads <br />The original permitted status of the section of road from State Highway <br />13 to the Gossard turnoff, was that of an access road. The June, 1992 <br />technical revision changed the technical status from that of an access <br />road, to that of an haul road. Since the segment of road was built to <br />the same specifications as that of the initial main haul road, no <br />additional modifications were necessary other than continued routine <br />maintenance. <br />While Tri State never used haul road B to transport coal other customers <br />have used the road to transport coal by highway truck. We anticipate that <br />it is likely that such truck shipments of coal will continue to occur <br />from Colowyo. Should highway truck transportation of coal cease we <br />anticipate that the status of haul road B could technically be changed <br />back to the original access road status. <br /> <br />~~~ ~:~'np~;OVf~~ L2 <br />4.03-2 _.r.._~~`,!~0. ~( L <br />