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SECTION 3.0 2010 Drainage Reconstruction, Improvement and <br />Repairs at Trapper Mine <br />• <br />3.1 Drainage Reconstruction 1987 -2010 <br />At Trapper Mine, all or portions of six major drainageways (Coyote, Johnson, Buzzard, No -Name, Flume <br />and Pyeatt) and their tributaries have been regraded and appropriately treated to reduce the erosion rate <br />and assist in permanent channel stabilization from 1987 through 2010. At the conclusion of the 2010 <br />field season, approximately 88,800 linear feet (16.82 miles) of permanent drainage reconstruction had <br />been completed at Trapper Mine (Map 1). In 2010 no new drainage reconstruction was conducted. <br />3.2 Drainage Improvements and Repairs <br />Improvements and repairs were performed to provide benefits to all drainages treated in 1987 -2010 as <br />well as portions of undisturbed and disturbed drainage segments. Drainage improvements include dozer <br />basins constructed in newly stripped topsoil areas and on newly regraded spoils. Drainage repair and <br />enhancement was completed on approximately 8,581 linear feet of drainage ways (West and East <br />Pyeatt, Flume and Oak drainages) during the 2010 field season. <br />GCR/BDN 2111 <br />• [DRMS10RPTT10 Drainage Repair text3 -01 <br />1 <br />• <br />