Dam Removal

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Salish Sea References

• Watershed Characterization Mapper
• The Encyclopedia of Puget Sound
• PRISM Project Search
• Washington Coastal Atlas
• WDFW's Salmonscape Map

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Historically dams were constructed for water diversion and power generation without regard for impacts on fish migration or Fluvial Processes. Dam Removal is increasingly pursued for the purpose of restoring Fish Passage and normative Fluvial Processes and to reduce the Effects if Stream Temperature on Salmon.

Notes

• Duda et al 2023 describes dam removal costs and factors affecting those costs.
• Frontiers in Ecology published an edition focused on dam removal.
• This resulted in a dam removal cost predictive model - https://wrises.shinyapps.io/DamRemovalCostPredictiveModel/
• American Rivers developed a Video on Benefits of Dam Removal and maintains a database of dam removals.

Chronology

The following is a chronology of noteworthy dam removal projects in the Salish Sea and Surrounding Lands:

• • 2001 - Goldsborough Creek Dam Removal
  • 2010 - Gold Ray Dam Removal (Oregon)
  • 2012-2014 - Elwha Dam Removal
  • 2020 - Pilchuck Dam Removal
  • 2022 - Middle Fork Nooksack Dam Removal
  • 2024 - Kwoneesum Dam Removal

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