Laserfiche WebLink
u <br />• <br />I• <br />I.D. Name <br />Sedimentation Pond 010 <br />Sedimentation Pond 011 <br />Sedimentation Pond 012 <br />Sedimentation Pond 013 <br />Sedimentation Pond 014 <br />Sedimentation Pond 011A <br />Discharge Structures <br />Discharge from sedimentation ponds, diversions and pit dewatering will be controlled by energy <br />dissipators, riprap channels, and other means or devices, where necessary, to reduce erosion, to <br />prevent deepening or enlargement of stream channels, and to minimize disturbance of the hydrologic <br />balance. Discharge structures will be designed according to standard engineering design procedures. <br />Transportation Facilities <br />Haulage Roads. The following describes the design and construction of the existing haul roads at the <br />Yoast Mine. The locations of existing haul roads are shown on Exhibits 12-1, Operations Plan, and <br />13.1, Facilities Map. Geotechnical and geological investigations were completed for these roads and <br />can be found in Attachments 13-5, Geotechnical investigation Haui Roads Y-A and Y-B, and Pond <br />010, and 13-6, Geological Report for Haul Roads A and B. The haulroads were constructed using the <br />recommendations included in these reports <br />General Requirements. SCC will construct, maintain and reclaim haul roads to minimize erosion and <br />siltation, air and water pollution and damage to public and private property. To the extent possible, <br />using the best technology currently available, haul roads will not cause damage to fish, wildlife, or <br />related environmental values and will not cause additional contributions of suspended solids to <br />streamflow~-or-to-runoff-outside-the-permit-area:--Any-such-contribution shall-not-be_in_excess of <br />limitations of State or Federal law. <br />Location <br />North of mining area <br />East of mining area <br />West of mining area <br />West of mining area <br />Southwest of mining area <br />East of mining area <br />Design ITab 131 <br />Attachment 13-3 <br />Attachment 13-4 <br />Attachment 13-12 <br />Attachment 13-12 <br />Attachment 13-12 <br />Attachment 13-18 <br />Location. Approximately 4.1 miles of haulage road currently exist within the Yoast Mine permit <br />boundary. The northernmost section (three miles in length) is designated as Yoast Road "A". The <br />southernmost section f1.1 miles) is designated as Yoast Road "B". A third section (1.0 miles) <br />designated as Haul Road D was constructed for use as an "out" road from the south mining area. Due <br />to stability problems from Sta. 42+00 to 52+00 this road is no longer used and has been shut off to <br />all traffic. As-Built construction summaries for Haul Roads A, B and D are contained in Attachment <br />13-11. As-Built drawings for Haul Roads A, B and D are depicted on Exhibits 13-10.1 io 13-10.6 to <br />13-11.1 to 13-11.2, and 13.16 respectively. The topography and vegetation conditions of the site <br />vary considerably, but can be divided into two general areas. The <br />PR-02 <br />11 <br />Revised 03/05 <br />