Snoqualmie Falls Hydroelectric Project

Visit Snoqualmie Falls

Puget Sound Energy's Snoqualmie Falls Hydroelectric Project, built in the late 1890s about 30 miles east of Seattle, is one of the Pacific Northwest's oldest hydropower facilities and home to the world's first hydroelectric plant built completely underground. The energy project's Snoqualmie Falls Park and its trails are open for day use year-round. The park is one of the region's most-visited tourist destinations. Map it.


Watch the video below for a virtual tour of the historic Snoqualmie Falls Hydroelectric Project.

Historic museum guided tours (Limited time only)

A new museum at Snoqualmie Falls is opening to the public this month. The exhibits are housed in the historic carpenter shop and Snoqualmie Falls depot, and chronicle Charles H. Baker's 1898-1899 development of the world's first underground power station. The Museum will be open for a trial run this month and a more comprehensive operating schedule is being planned for summer 2015.

Free shuttle and guided tour

Free tours are being offered on the following dates at 10:00 AM (all), 12:00 PM (all), and 2:30 PM (excluding Sundays):

  • Saturdays and Sundays through the end of August
  • Friday, August 15
  • Monday September 1

All tours depart from the Snoqualmie Falls park Upper Plaza at the sandwich board kiosk titled "Snoqualmie Falls Historic Area Museum Tours" and last a total of 90 minutes. Tours accommodate a maximum of 14 people and are recommended for ages 12 years and older.

Northwest Railway Museum tour and train excursion

The Northwest Railway Museum is also offering a train excursion and guided tour of the Snoqualmie Falls power plant museum which departs from the Snoqualmie Depot Sundays at 12:30 PM through August 31st. Tickets are $20.00 and limited to 15 participants per day. The tour will take approximately 2 1/4 hours. Visit the Northwest Railway Museum website for more information and tickets.


Above the falls is the two acre Snoqualmie Falls Park with observation areas and signboards about the history and operations of the facility. A new boardwalk connects the upper area to a lower level observation platforms allowing visitors to view the falls from the bottom. Parking is available at both levels of the park.


Through early 2013 a major redevelopment project overhauled the hyrdrofacility and surrounding parklands. More

Video Gallery

June 10, 2010

A Virtual Tour of Snoqualmie Falls Hydroelectric Project

Take a virtual tour of the world's first hydropower plant built completely underground, the Snoqualmie Falls Hydroelectric Project. Constructed in 1898-99 in the Cascade Mountains east of Seattle, the project's original Plant 1 powerhouse -- still operational today -- lies inside a bedrock cavity 260 feet below ground along the edge of Snoqualmie Falls. The Puget Sound Energy project's public park and trails are one of the Northwest's most-visited tourist destinations.

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