Laserfiche WebLink
Figure 8 <br /> -- 4:1 slope In <br />overburden <br />0.5:1 slope 4:1 revegetated <br />in rock slope <br />existing grade <br /> <br /> Reclamation ~ bottom of <br /> Cross Section ~ 50 ff -~-- overburden <br />T <br />ra <br /> empo <br />ry Turf reinforcement <br /> Cross Section 105 ff MaT for temporary <br /> and permanent <br /> cross section (note 3) <br /> TYPICAL CROSS SECTION <br /> NOTES: <br /> 1. Design flow is 100-year, Q = 815 cfs, s ~ 1.0%, Dn = 2.3 ft, V = <br /> 7.0 fps. <br /> 2.. Reclamation cross section to be constructed after mining block <br /> 25year is completed. Rock slopes are [o be sloped back at 4:1 and <br /> covered with topsoil for revegetation. <br /> 3. IF bottom of acroyo founded is rock, Turf Reinforcement Mat not <br /> required for tither cross section <br /> 4. Temporary excavation into rock to be sloped back at 0.5: I. <br /> Temporary excavation in overburden to be sloped back at 4:1 and <br /> revegetated. <br /> GCC Rio Grande <br /> Red Rock Plant and Mine <br /> RECONSTRUCTED ARROYO "B" <br /> TYPICAL CROSS SECTIONS <br /> June 13, 2002 <br />