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Snoqualmie Falls Hydroelectric Project Upgrade

Renewing a renewable resource

The Snoqualmie Falls Hydroelectric Project, built in the late 1890s and expanded in the early and mid-1900s, is Puget Sound Energy's oldest power-generating operation. The hydroelectric project's public park and trails are one of the most popular scenic destinations in the Pacific Northwest.

In 2009, PSE began a major redevelopment of the Snoqualmie Falls facilities to ensure that they continue to produce clean, cost-effective electricity for centuries to come. The project entails substantial upgrades to PSE's power-generating infrastructure and major enhancements to the public recreational facilities at Snoqualmie Falls.

Committed to keeping you informed

PSE will continue to update the community on key changes and developments during the construction project. We aim to complete the work with as little disruption as possible.


Park access

  • Major upgrades to PSE's hydroelectric infrastructure and to lower Snoqualmie Falls Park facilities are scheduled to last until fall 2013.
  • Redevelopment of upper Snoqualmie Falls Park began in September 2009; improvements are complete.
  • The upper park and its views of Snoqualmie Falls will remain open to the public throughout the redevelopment project.
  • To ensure safety, the hillside trail between the upper and lower areas of Snoqualmie Falls Park, as well as the park's riverside recreational areas, are closed to the public until fall 2013.

Project illustrations and photos

View illustrations of the planned changes and photos of the construction work.

More information

View construction schedule and news releases. »