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2-7 <br />$`he refiuse disposal area access-haul road shall require the <br />' excavation of 24,280 cubic yards of topsoi~ and the excavation <br />of 24,070 cubic yards of additional material to be used for 4 <br />Yoad embankment. Approximately 26,245 cubic yards of excavated. <br />material shall be required for embankment with additional em- <br />bankrneht material obtained from construction of the central <br />facilities area. Graded material produced from the construc- <br />tion of McClane Canyon haul road will be used as a road base. <br />The road, which will allow access from the central facilities <br />area to both mine sites while the unit train is being loaded, <br />shall be located adjacent to the Munger Creek diversion channel <br />(see Section 2.9.6.1 and Figure 2.2-7.SS). The road shall <br />run in a north south direction parallel to the diversion channel <br />until it crosses the proposed tail track with a grade crossing <br />and connects up to the access-haul road which connects the <br />central facilities area with the refuse disposal area. This <br />alternate access road may also be used for hauling refuse to <br />• the refuse disposal area. Earth moving quantities for this <br />road are included in those for the central area. <br />2.3.2.1 Access and Haul Road Construction <br />The construction of the proposed roads shall be similar to <br />the construction and upgrading of the Munger Canyon access- <br />haul road. The following is a subgrade summary of laboratory <br />test results on a representative sample in the immediate <br />vicinity of the proposed central facilities area: <br />Density Moisture CBR CBR <br />Soil Description $ $ Value** Compact $ <br />Red sandstone- <br />claystone wJred <br />silty clay 112.4 14.7 1.4 98.8 <br />Dry <br />Density $ Moisture $ Swell $ <br />111.0 8.0 5.56 <br />