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• The Northeast Perimeter Haul Road is also in the disturbed area and therefore should not <br />need to meet the design criteria of Rule 4.03.1(3), however, since the area has been <br />reclaimed, an alternative demonstration to the design criteria of Rule 4.03.1(3) is given <br />below. <br />Alternative Demonstration to the Desion Criteria of Rule 4.03.1(3) for the Northeast <br />Perimeter Haul Road <br />This demonstration is written by Greg Lewicki, P.E., with over 28 years of coal mine haul <br />road design, construction, permitting and reclamation experience. <br />The plan view and profile of the road on Map 2.05.3(3)-8 The Northeast Perimeter Haul <br />Road was first started in 1993. At that time, the road was installed from Station 0+00 to <br />approximately Station 30+00. In subsequent years, as mining continued to the west, the road <br />was also extended west to its crossing of 2700 Road, which was started in the year 2002. <br />The total road length is 6600 feet. The road was installed by the following sequence: <br />1) strpping topsoil from the surface area <br />• 2) placement of 1' to 2' of compacted fill in lifts adequate for good compaction (using heavy <br />loaders and dozers) and then compacted further with heavy mine trucks <br />3) placement of 4" of gravel on the surface which was then compacted with very large mine <br />trucks <br />Although no compaction tests were made of the minor fill, I firmly believe that the compaction <br />is adequate for its intended use for the following reasons: <br />1) The fills are less than 2 feet high and in most cases, they are less than 1 foot high. <br />2) The heavy equipment in use at this mine site is capable of producing tremendous <br />compaction in small lifts or even 1 foot lifts. <br />3) Most of the overburden material used in the fill has a good mix of sand, silt and clay which <br />normally achieves an excellent compaction. This is supported by the excellent strength <br />testing done on the overburden material for the sediment pond stability analyses. See <br />Attachment 2.05.3(3}15 for details of the strength properties of the overburden. <br />4) The mine haul trucks which have used the road produce an extremely large point load on <br />the ground surface, further improving the compaction. <br />5) The road has been in use for 13 years with no problems of any kind regarding stability, <br />. compaction and crowning. <br />(Revised July 2006) 2.05.3(3)-33 <br />