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SECTION 3.0 2007 Drainage Reconstruction, Improvement and <br />Repairs at Trapper Mine <br />3.1 Drainage Reconstruction 1987-2007 <br />At Trapper Mine, all or portions of six major drainageways (Coyote, Johnson, Buzzard, No-Name, <br />Flume and Pyeatt) and their tributaries have been regraded and appropriately treated to reduce the <br />erosion rate and assist in permanent channel stabilization from 1987 through 2007. At the conclusion <br />of the 2007 field season, approximately 88,800 linear feet (16.82 miles) of permanent drainage <br />reconstruction had been completed at Trapper Mine (Map 1). In 2007 no new drainage reconstruction <br />was conducted. <br />3.2 Drainage Improvements and Repairs <br />Improvements and repairs were performed to provide benefits to all drainages treated in 1987-2007 as <br />well as portions of undisturbed and disturbed drainage segments. Drainage improvements include <br />dozer basins constructed in newly stripped topsoil areas and on newly regraded spoils. Drainage repair <br />and enhancement was completed on approximately 8,000 linear feet of drainageways (Pyeatt and Oak <br />drainages) during the 2007 field season. <br />• GCR 3/08 <br />(DRMS\07DRte#3-1J <br />•