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,~, Horizontal alignment is consistent with the existing topography. Haulroads are <br />• - located on ridges whenever practicable. Switchbacks are used to traverse the <br />slopes when necessary to maintain an acceptable grade. The resulting horizontal <br />curves and all other horizontai curves are in accordance with the speed and <br />design characteristics of the haulage eQUipment. <br />Prior to disturbance for haulroad construction and as an integral part of our <br />overall reclamation program, vegetation and topsoil are removed from the areas to <br />be affected. Topsoil is removed from an area wide enough for the roadbed, <br />shoulders, ditches and sideslopes. The topsoil is either stockpiled or placed <br />directly on regraded spoils (refer to Section 3.2). <br />Road cuts are made when necessary with side slopes at 1V:>1.SN. <br /> At the Trapper Mine, road cuts do not normally occur in competent rock. However, <br /> if such a situation is encountered, the cut will be no steeper than 1V:>0.25H. <br /> All cut slopes are dressed to provide a smooth tr ansition with adjacent slopes. <br />~ Material from road cuts is used for embankments required Eor the same road. <br />• Roads are located to avoid excessive road cuts. A berm or ditch is placed at the <br /> top of large cut slopes to divert water away from the face of th em. Any excess <br /> cut material is taken to an active mining area, dumped with Che spoils, and <br />graded during [he normal regrading of the area. <br />Embankments required for haulroads are located on stable slopes. Roads are <br />located to avoid excessive embankments when practicable. Prior to placing fill on <br />the fill area, the topsoil is removed. Any unsuitable materials are removed to <br />provide a competent foundation. If necessary, the surface of the fill area is <br />scarified and recompacted to an acceptable density. All embankments located on <br />hillsides are scarified prior to the placement of fill. This prevents slippage <br />of the embankment. <br />Only suitable materials are used for the construction of embankments. So Et, <br />organic, frozen or coal waste materials are not used. The embankment is built in <br />a series of compacted layers. The compacted thickness of each layer is <br />• <br />3-162 <br />REVISED FEB 13 'B7 <br />