Laserfiche WebLink
will be on the opposite side of the mountain. Vertical storage <br /> bunkers will be constructed near each of the mine connections to <br /> provide in-transit storage for freshly mined coal. Laterals <br /> located either in the coal seam or in the rock below the coal <br /> seam will be driven to connect adjacent mines with the rock <br /> tunnel/bunker system. From the portal, at an elevation of 8 , 572 <br /> feet, the first section of tunnel (4000 feet) will rise at a <br /> grade of 4 percent. The second section will rise at 12- percent <br /> for an additional 8,500 feet. The third section will rise at <br /> 10 percent for 500 feet to intersect No. 1 mine, and an additional <br /> 2,000 feet to intersect No. 2 mine. The last section (4 ,0001 ) <br /> will continue at a 15% grade to the outside or to the westside of <br /> Huntsman Ridge. Each bore of the tunnel will have a nominal <br /> cross-section of 13 feet high by 16 feet wide horseshoe shape. <br /> (See Figure II-B-2 on next page and revised Exhibit II-B-3)/ <br /> The first 12,400 feet of tunnel will be <br /> driven predominantly in the Mancos Shale. At least one dike, <br /> estimated to be about 30 feet thick, will be penetrated in this <br /> section. A section, about 600 feet, will be driven through the <br /> Rollins Sandstone and will connect with the No. 1 mine. The next <br /> 2, 000 feet of rock tunnel will be driven through interbedded <br /> shales and sandstones of the Mesaverde Formation to the connection <br /> with No. 2 mine. Approximately the last 700 feet of this section <br /> will be in the massive sandstone underlying the No. 2 mine. The <br /> final 4, 000 feet of the tunnel will be driven through interbedded <br /> shales and sandstones and undifferentiated formations to the <br /> surface. <br /> I 32 <br />