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Chapter V <br /> 1983. Field work and haul road mapping. <br /> extensive report was prepared describing <br /> the topography, slopes and construction of <br /> and benches. The report is included in App. V-E-III. <br /> 1983-1984. Design and construction of test areas. <br /> 1987. Review and report of test area results <br /> There are four test sections, selected as representative of six disturbed road/bench <br /> area types. All are in the #4 portal area, which offers suitable test sites, and has <br /> been an area of relative inactivity during the test period. The sections and their <br /> locations are as follows: <br /> TEST SECTION 1: this test section included a road and mine bench cut above the <br /> old #4 portal lower bin pad. It was selected to test two situations: (1) a high soil <br /> cut road; (2) a high rock cut on a portal bench. <br /> TEST SECTION 2: this test section is also at the #4 portal area, selected as a <br /> high, thick fill area.It was selected to test another two situations: (3) high thick fill <br /> road; (4) high thick fill portal bench. <br /> TEST SECTION 3: this section is located on the edge of the truck haul road east of <br /> the #4 lower bin pad. It was selected as representative of another area type: (5) a <br /> high, thin sliver fill area. <br /> TEST SECTION 4: this section is located on the north side of the #4 portal lower <br /> bin pad. It was selected for study of (6) an area of severe erosion. This test <br /> section is also the north slope vegetation test plot. <br /> A reclamation concept and method was designed for each area type, and has been <br /> evaluated for success. The results have been good, and Mid-Continent's overall <br /> backfilling and grading plan for the final reclamation phase will incorporate the <br /> concepts and methods tested, with reclamation methods applied as appropriate to <br /> the topography for disturbed areas along the roads and at the benches. Grading will <br /> be done in areas above the cut in those instances where natural sloughage has <br /> failed to result in a stable slope which blends well with the natural topography. In <br /> those areas where good stability has established itself, and topography blends well <br /> above and below the original cut, there will be no further disturbance with heavy <br /> equipment. The objective of all final reclamation efforts will be stability, the most <br /> moderate slopes and the most natural look terrain possible, with the least further <br /> disturbance. <br /> 29 <br />