DESCRIPTION
Washington Department of Fish and Wildlife used this funding to remove 1/4 mile of the Snyder Creek concrete sluiceway and create a natural channel and riparian zone. Snyder Creek, a majority tributary of the Klickitat River, is located 15 miles north of Lyle, along Highway 142 within the city limits of Klickitat, Washington. Yakama Nation fish biologists designated Snyder Creek a top priority for restoration due to four miles of high quality habitat existing above the abandoned Champion Pacific International mill, and the WRIA 30 Limiting Habitat Factors Analysis deemed habitat access to lower Snyder Creek a key limiting habitat factor. Affected fish species include threatened Mid-Columbia steelhead and coho, a depressed stock.
This grant funded work that consisted mainly of weir construction to provide fish passage through the 2648-foot Snyder Canyon Mill Flume. Ninety-two concrete weirs were formed during this period out of a total of 123 c needed to complete passage. In addition, the project completed bank sloping and riprap installation adjacent to the removed section of the flume. Five concrete vaults were cut into the flume floor and attached to the downstream end of the adjacent weir to provide resting areas for migrating fish. These vaults were sealed to prevent downwelling during low flow. Concrete end wall construction was added to the project to improve channel alignment and reduce the size of some of the weirs. This was done in several places where the flume walls had abrupt corners. Finally, a large amount of site clutter (concrete chunks, lumber, forming material, pipe sections) was hauled off site.
Partners included Klickitat County, the Yakama Nation, Bonneville Power Administration, Washington Department of Ecology.