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RECLAMATION - BENCHES <br /> The slope was reduced to 1.5:1 and water diverted around the test section. <br /> The entire areas was then seeded and mulched. <br /> Conclusions. This particular area was very successful. The reclaimed area <br /> blended in well with natural surroundings and there was no evidence of <br /> problems with structural stability or erosion. <br /> Section 4. Severe Erosion Areas. <br /> Surface erosion areas are very common on fill slopes where no vegetation <br /> has established itself. A test area of severe rills and gullies was scarified with <br /> a special drag hooked up to a dragline. The area was then seeded and <br /> mulched and the mulch was tacked down with a plastic net. Berms were <br /> constructed at the crest of the slope to prevent erosion of the slope. <br /> Conclusions. <br /> This section is part of a 10-year revegetation study. After four years, the <br /> section showed no major rills and gullies, and only minor sloughing at the <br /> lower area of the vegetation. <br /> THE CONCEPTS APPLIED TO THE BENCHES <br /> No. 1 Bench. <br /> Geo-Hydro's Documentation: <br /> • No. 1 Bench was developed as two yards; one is used as a mine bench <br /> with the mine portals located in it. The second yard, located south of the <br /> mine bench, has been used as a storage yard. <br /> • There are two significant cuts above the mine bench and above the storage <br /> yard. The mine bench cut (portal cut) has been excavated in various <br /> geologic units. A distinct gully, just south of the lamphouse, divides this cut <br /> into two parts. <br /> • The part north of the gully is partly in colluvial soils behind the lamphouse, <br /> the remaining part is in rocks of the Mesaverde. The cut portion in colluvium <br /> shows moderate sloughing and rockfall. Moderate to severe sloughing can <br /> 8 <br />