Laserfiche WebLink
CMA <br />November 25, 2008 <br />Page 2 of 4 <br />MCC spared no expense as they undertook the preventative measures. These measures consisted of <br />unloading of the landslide on the south abutment, buttressing the downstream face of the dam, installation <br />of a primary spillway valve and piping, installation of trench drains, gravel filter, clay liner, piezometers, <br />inclinometers, rip-rapping the upstream face and emergency spillway. Also associated with the project <br />were the installation of a total remote survey station and accelerometers for monitoring the dam for <br />movement and seismic activity, both naturally occurring and mine-induced. <br />MCC was instrumental in providing the permitting, engineering design, and project management of <br />construction activities for the Minnesota Canal and Reservoir Company. MCC is to be commended for <br />their extraordinary efforts to help ensure public safety. <br />Excellence in Innovative Reclamation Practices <br />Trapper Mine - Permit No. C-1981-010 <br />Trapper Mining Inc. <br />P. O. Box 187 <br />Craig, CO 81626 <br />Contacts: Ray Dubois, Forrest Luke and Billy Nicholson <br />(970) 824-4401 <br />Trapper Mining Inc. (TMI) is nominated for innovation in drainage construction at the Trapper Mine and <br />for diligence in seeking Phase III bond release. TMI sent personnel to a fluvial geomorphology course. <br />Using the reclamation concepts learned in the class Trapper applied them to a reclaimed drainage at the <br />mine site. TMI established a sinuous channel down a relatively steep slope. Instead of installing a series <br />of rock check dams as TMI has constructed in older drainages, which frequently require maintenance <br />after large precipitation events, TMI installed rock vanes in the new channel. The rock vanes perform a <br />function similar to the rock check dams by slowing the runoff velocity and allowing sediment to drop out <br />of the runoff while allowing the runoff to flow around the vane and reduce the amount of reconstruction <br />needed after large storm events. The sinuous nature of the channel aids in reducing the runoff velocity as <br />well. The drainage performed well during the 2008 season following a record snowfall year. Little or no <br />maintenance was required. <br />Trapper Mining, Inc. is also to be commended for achieving Phase III bond release on 1068 acres in the <br />past two years. TMI is diligent in reclaiming contemporaneously and manages to fulfill the bond release <br />criteria for cropland and rangeland/wildlife habitat within the 10-year liability period. To date, TMI has <br />achieved Phase III bond release on 2,921 acres. <br />Trapper Mining, Inc. is commended for the innovative reclamation practices and successful <br />accomplishments in achieving Phase III bond release at the Trapper Mine. <br />Excellence in Reclamation to an Alternative Post Mining Land Use <br />Roadside Mine - Permit No. C-1981-041 <br />Snowcap Coal Company, Inc. <br />(Subsidiary of American Electric Power) <br />P.O. Box 1430 <br />Grand Junction, CO 81526 <br />970-245-4101 <br />Contact: Tonya Hammond