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-27- <br />• evaluation of exactly the extent of the fills that may be <br />required for the improvement of the haul road. As discussed <br />earlier, the alignment as presented in the design would require <br />the construction of several fills of considerable heights. <br />It is assumed that the slopes of the fills will be constructed <br />at 2 (H) 1 (V). The natural grades of the valley slopes below <br />the proposed haul road are generally steeper than such a slope. <br />For this reason, any larger fills would have to be extended all <br />the way to the bottom of the Munger Creek tributary. This may <br />result in very high fills in the uppermost portion of the align- <br />ment where the haul road is high above the bottom of the valley. <br />Fills of this height would have to be designed and their construc- <br />• tion would be very expensive. As some of them may extend to the <br />opposite side of the valley, they would effectively dam the valley <br />and appropriate culverts would have to be located within them. <br />We do not expect any problems with the construction material <br />for the road fills. We believe that all materials, including <br />the soils and rock at the site, will comprise suitable construction <br />material for the road fills. Selected physical properties of <br />the typical soils from the area have been tested and the results <br />of the tests are presented in the Appendix of this report. We <br />believe that the terrace deposits, as indicated on the geotechnical <br />map, will comprise the most suitable construction material for the <br />fills. <br />• All other materials (both soil and rock) can be used for the <br />fill construction as well. <br />