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8. Alcng numerous sEcllenS - :he road surface or from <br /> overtopped di tch sagmrncs has c:,c road for some distance and <br /> eventually has run off the road in an uncontrolled manner, resulting in <br /> fill slope erosion . Rill erosion due to such uncontolled drainage has <br /> occurred between Sta. 90+00 and 70+00, Sta. 50+00 and 47+00. and Sta. <br /> 35+00 and 32,00. <br /> 9. At approximately Sta. 87+00, a bedrock outcrop has apparently prevented <br /> ditch excavation and has resulted in ditch overtopping. <br /> 10. From approximately Sta. 25-00 around the Arctic Circle switchback, flows <br /> have escaped the ditch as a result or sediment accumulation and resulted <br /> in rilling of the road surface . <br /> Road B <br /> 11 . All along Road B, sediment has been deposited in the timbered buffer zone <br /> along the South Fork of Dutch Creek as a result of uncontrolled runoff <br /> from the road surface, overtopped ditches and culvert discharge. <br /> 12. As with other road ditches , the Road B ditch is alternately scoured in <br /> some segments and there is evidence of previous debris accumulation and <br /> overtopping in other locations . Rock checks required by the approved <br /> plan to slow velocities have not been installed . Ditch scouring is <br /> severe for most of the distance between Sta. 35+00 and culvert B-3 at <br /> Sta. 24+10. Ditch flows through this segment have cut into the toe of <br /> the cut slope , resulting in continuing sloughage of soil from the cut <br /> into the ditch. At approximately Sta. 30+00, the ditch has been <br /> partially filled in with sediment from erosion within the B-5 drainage, <br /> above. <br /> Road G <br /> 13. In several locations , road drainage ditches have not been constructed or <br /> maintained to provide design capacity. The following areas of violation <br /> were noted: <br /> a. Various road segments on the upper portion of the road above <br /> Culvert G-24, including sections of the road ditch which drain into <br /> the Mine 5 sediment pond within the Mine 5 disturbed area. <br /> b. Ditch section between Sta 115-00 and Culvert G-18 was partially <br /> filled in, in places , and had overtopped in the past, resulting in <br /> some flow across the road and over the outslope . <br /> -7- <br />