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• mph design speed for safety reasons, Horizontal and vertical <br />alig~ent have been carefully coordinated so that no horizontal curve <br />begins or ends at the treat or sag of a vertical curve and in such a <br />manner as to control erosion, simplify drainage design and maximize <br />safety and enviro®ental protection, and follow the eustiag natural <br />topography. <br />The grade and pitch requirements specified under Bule 4.03.1(3) <br />have not been ezceeded in road design, as ahovn on !!ap 14, Haulroad <br />Profiles and Cross-Sections. The schematic diagram also ahowa.that <br />road cuts and embankments will not surpass the standards stipulated in <br />&ule 4.03.1(3). As discussed under Bule 2.04.6, the spoil materials <br />vithia the proposed permit area are devoid of acid- or tozic-forming <br />• substances. Since all vegetation and topsoil materials were <br />previously salvaged from the haulroad corridor, neither of these <br />operations will be conducted at Energy Mine No. 3. <br />Temporary sediment control measures, such ae check dame or <br />diversion ditches, will be installed during road construction, so that <br />water quality standards are maintained. Once construction is <br />completed, the cut and fill slopes will be mechanically stabilized by <br />"cat-tracking". Since the haulroad will be in eaistance for a short <br />period of time and surface runoff from the haulroad corridor will pass <br />through sediment control structures, CYCC does not plan to institute a <br />seeding program on road cuts or embankments. <br />~J <br />2.05 - 14 <br />