Fulton Fishway Adaptive Repairs

Elbow Coulee Floodplain Restoration

Project Location:  Chewuch River

Landowner:  Private

Species Benefitted: Spring Chinook Salmon, Steelhead Trout, Bull Trout
Project Status: 

  Phase 1
  • Assessment of Spring high water damage to dam and fish passage
  •   Phase 2
  • Adaptive dam repairs completed November 2008
  •   Phase 3
  • Site Restoration scheduled for spring 2009
  •   Phase 4
  • Monitoring through 2012

  • Funding: WA State Salmon Recovery Funding Board, Bonneville Power Administration

    • Chewuch Basin Council
    • Bureau of Reclamation (Technical Assistance and Design)

    Project Description:

    The replacement Fulton Dam, completed in January 2007

    In January 2007, MSRF and its partners completed construction of a replacement dam, on the Chewuch River near Winthrop, that serves the Fulton Canal. The new dam included an innovative rock fishway designed by the Bureau of Reclamation. The fishway relied on tightly placed river rock rather than the more traditional concrete or grouted materials. High flows in Spring 2008 washed out portions of the ungrouted rock below the crest of the dam that, if left un-repaired, could have impacted fish passage or the structural integrity of the dam crest. In November 2008, MSRF and its partners repaired the damage, removing undersized rock and carefully interlocking new materials to prevent further scour and preserve safe fish passage well into the future.

    The Fulton Dam during May 2008 high flows








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