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Mid-Continent Resources Mine #5 <br /> around the outermost (northerly) edge of the yard area (Ditch Segment 8), then <br /> leading to the sediment pond (Ditch Segment C). <br /> Drainage from the (lower) portal should be routed away from the fill to be placed <br /> at the base of the hill. A well armored ditch will be constructed below the (lower) <br /> draining portal to convey flow around the hill, then to intersect with Ditch A. <br /> Sector 2-8 <br /> The existing stands of timber are an asset to this area, and will not be disturbed. <br /> The fill slope along the outside edge of the portal bench, above the road, will be <br /> pushed down, over the roadway, to fill in the ditch and partially cover the road. <br /> This will somewhat moderate the slope and the angle of the slope. The roadway <br /> will thus be narrowed, to serve as a terrace. The fill material below the road <br /> should be left alone as it is of a more moderate grade, and has vegetated, <br /> except to direct drainage from the hillside above. <br /> Drainage from the eastern-most swale on the bench will be directed, via a swale <br /> across the road, toward the natural ravine which leads to the lowermost yard <br /> area, and then directed to the ditch leading to the sediment pond. <br /> Drainage from the mid-portion of the bench will be routed, also via a second <br /> swale in the roadway/terrace below, to an existing ditch (Ditch F) which extends <br /> through a wooded area down the the ravine. The objective is to prevent water <br /> flowing down toward the fill (Area 3A). <br /> Sector 2-C <br /> Material from the fill slope below the bench will be pushed down over the <br /> roadway, below this area, as the terrain becomes less steep, the roadway will be <br /> little altered, other than to be ripped and seeded. <br /> Flows from the AML project on the hillside above will be routed as presently. <br /> Area 3 <br /> Sector 3-A <br /> The outwash material in the lower yard area, together with material from the AML <br /> project, will be placed against the hillside and compacted. The western-most <br /> side of the fill slope above will be avoided as a potential avalanche path. The fill <br /> will extend outward toward the concrete bases of the (former) bin. The fill will <br /> moderate the angle of the toe along the base of the hillside. <br /> 4 <br /> 07/14/93 <br />