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EXISTING <br />1� <br />50' MINUMUM <br />TYPICAL HAUL ROAD CROSS SECTION <br />Figure 2.05.3 -F2. Typical Access Road Cross - Section <br />Typical gravel (road surfacing) characteristics will conform to the following specifications: <br />Screen Size <br />Material Passim <br />1-1/2 inch <br />100% <br />I inch <br />75 -90% <br />3/8 inch <br />40 -75% <br />No. 4 mesh <br />30 -60% <br />No. 10 mesh <br />20 -45% <br />No. 40 mesh <br />15 -30% <br />No. 200 mesh* <br />5 -15% <br />*The fraction passing the No. <br />200 mesh shall not be greater than two - thirds of the fraction passing <br />the No. 40 mesh. <br />In -Pit Roads — Road F of the proposed roads are located within or adjacent to the active mining <br />area and are therefore considered in -pit roads, consistent with the applicable regulatory definition. <br />From a construction, use, and maintenance perspective, these roads will generally be designed and <br />built to the same standards as haul roads, consistent with the following road descriptions. The <br />posted speed limit for all in -pit roads will be 25 mph. Portal Ramp (Road F) — As an in -pit road, the <br />portal ramp will extend from the mine facilities area to the base of the mine face -up, as shown on <br />Map 2.05.3 MIA. The road extends a distance of approximately 900 feet. The portal ramp will be <br />a maximum of 60 feet wide, and will be constructed in undisturbed ground during excavation of the <br />face -up area. The portal ramp will be utilized for transportation of men, equipment, and supplies <br />from the mine facilities area to the mine portals and for the transportation of coal during the initial <br />start up while the main conveyor is being constructed. With the exceptions of sub -base and base <br />construction, the portal ramp will be constructed in the same manner and to the same specifications <br />as an access road, with the road surface consisting of a 12 -inch gravel base and 6 inches of gravel <br />surfacing. An MSHA safety berm will be established and maintained on the sides of the portal <br />ramp, as appropriate. <br />Appropriate as -built certifications for the mine access roads and haul roads will be developed and <br />provided to the CDRMS when road construction is completed. All roads and associated drainage <br />TR -O/ 2.05 -26 Revision 4/12 <br />g' <br />