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-n- <br />ditch, and drainage structure already in existence at the site. This must include <br />all roads in the surface facilities area, with the exception of Colorado Highway <br />133. ro ro ad segment <br />shown. Sped must be provided or any str re proposed as a modifi-. <br />cation of an existing roa an culverts. Appropriate typical <br />cross sections showing road ails must be provided. <br />~ 2.05.3(3)(c)(ii) The applicant must submit a report of appropriate geotechnical <br />m analysis where cut slopes for existing roads, excluding the highway, are steeper <br />then 1.5 h to 1 v in unconsolidated material or 0.25 v to 1 h in rock. <br />2.05.3(3)(c)(iv) The applicant must state that all ditch relief culverts for <br />existing roads will be protected at the inlet end by a rock headwall, or provide <br />alternative specifications. .__ <br />2.05.3(3)(c)(v) The applicant must provide a description of measures to be used <br />to ensure that the interests of the public and landowners affected are protected, <br />since the existing surface operations are within 100 feet of Highway 133. The <br />applicant must demonstrate that hazards to the public will not be posed by encroach- <br />ment of the upper conveyor bench embankment into the highway in the east portal <br />area, by coal fines from the conveyor falling on the road, etc. The proposed <br />relocation of the highway by the state has been adequately discussed; however, the <br />existing highway will continue to be used until the relocation is completed. Also, <br />the applicant has not stated whether the existing highway will remain a'public <br />road once the relocation highway is completed. If it will remain a public road, <br />the interests of the public must be ensured. If not, its maintenance as a <br />haul road is required. <br />4.03.1 The mine plan is incorrect in stating that the only haul road utilized <br />at the mine is State Highway 133. All roads utilized by coal haulage trucks <br />within the facilities areas must meet the standards of 4.03.1.. <br />4,03.1(3)(c), (4.03.1(3)(d), 4.03.2(3)(c) and 4.03.2(3)(d) The applicant must <br />submit a plan for stabilizing against erosion all cut and embankment slopes for <br />existing roads in the facilities areas. <br />4.03.1(3)(d) and 4.03.2(3)(d) The applicant must demonstrate that, where road <br />embankments have been constructed on clones exceeding 20°!0, that the embankment <br />is stable with a minimum safety factor of 1.25. <br />4.03.1(3)(d) and 4.03.2(3)(d) The applicant must provide representative cross- <br />sectional views through the surface facilities areas showing the side slopes of <br />existing road embankments and that they are adequate to meet the requirements <br />of this section. , <br />4.03.1(4)(c) and 4,03.2(4)(c) The applicant must provide drainage ditches at the <br />toe of all cut slopes formed by roads in the surface facilities area. Many of the <br />existing roads shown on Exhibits 2.05.2-E and 2.05.2-F, Surface Facilities, are <br />not shown on Exhibits 2.05.3-Q and ?.05.3-C, Sediment Control, indicating that <br />no drainage ditches have been provided for these roads. Design calculations and <br />specifications must be provided for all drainage ditches along with proposed <br />cross-sectional views of proposed ditches. Ditch relief cross-drains must be <br />provided and spaced according to grade. <br />4.02.1(4)(d) and 4.03.2(4)(d) The applicant must provide for proper drainage of <br />the road surface `through crowning or insloping to ditches to prevent ponding of <br />