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f • PROPOSED CONSTRUCTION <br />The Bowie No. 2 Mine surface facilities will serve an underground room and pillar mine <br />with an estimated service life of at least 35 years. The mine portal will be uphill of most of the <br />planned improvements at an elevation of about 6,900 feet, while the base facilities for coal <br />loading will be at an elevation of about 6,000 feet. Plate 1 shows the planned facilities and their <br />relationship to the boreholes made for this study. <br />Construction of the haul road and portal bench is currently planned to initiate by <br />September 1, 1996. Construction of underground workings, surface facilities and the conveyor <br />will then commence over the winter of 1996-1997. Starting from the base area, major features <br />include: <br />• Approximately 10,000 lineal feet of access and haulage road at an average grade <br />of about 10 percent, with numerous culverts and sidehill cuts/fills. The haul road <br />is presumed to be designed for heavy thick traffic typical of mining facilities, and <br />as such, would be paved with a section of materials to support such loading. The <br />haul road may be re-routed across a rock slope. Tltis route modification was not <br />studied for this report. <br />• A graded truck loadout area will be at about elevation 6,000 feet, requiring <br />about 5 to 10 feet of cut and fill greding will be located at the base of the <br />conveyor with a 56-foot diameter, 170-foot tall silo and smaller stoker bin. The <br />silos will likely be constructed on mat/footing foundations. Sedimentation Pond <br />B will be cut about 10 to 20 feet deep,. located on a bench southwest of the <br />loadout area. <br />• Topsoil Pile No. 1 will be located east of the truck loadout area. An extension <br />of the haul road will run between the loadout area and the gob pile, located on <br />a steep slope above the old surface facilities for a previous mining operation. A <br />small gob pile pond will control runoff from the gob pile. Pond C will be <br />excavated into a bench to the west of the gob pile. Materials and topsoil storage <br />are planned along the lower reaches of the haul road extension. <br />I,' • <br />i ~-- <br />2 <br />