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<br /> <br />5~ F <br />iiiiiiitiiiiiiiiiii <br />SECTION 3.0 Drainage Reconstruction, Improvement and Doc Date:12/11/2001 <br />Repairs at Trapper Mine in 1997. <br />3.1 Drainage Reconstruction 1987-97 <br />At Trapper Mine, all or portions of five major drainageways (Coyote, Johnson, Buzzard, No-Name and <br />Pyeari) and their tributaries have been regraded and appropriately treated to reduce the erosion rate <br />and assist in permanent channel stabilization from 1987 through 1997. At the contusion of the 1997 <br />field season, approximately 58,850 linear feet (10.77 miles) of permanent drainage reconstruction had <br />been completed at Trapper Mine (see Map(s) 3). In 1997 there was no permanent drainage reconstruo <br />lion completed, however, 7,500 linear feet of drainage was prepared for completion during the 1998 <br />field season in West Pyeatt and No-Name drainage areas. <br />3.2 Drainage Improvements and Repairs <br />Drainage improvements and repairs were perforated to provide benefds to all drainages treated in 1987- <br />1996, as well as portions of undisturbed and disturbed drainage segments. Drainage improvements <br />include dozer basins constructed in newly stripped topsoil areas and on newt' regraded spoils. <br />Drainage repair and enhancement is currently proposed on approximately 1,100 feet of East Pyeatt <br />dreinageway for the 1998 field season. <br />BDN 7AE <br />~DM6~B7REPr7] <br />~~ <br />