National Register of Historic Places

Snoqualmie Falls Hydroelectric Power Plant Historic District

Snoqualmie, King County, Washington
Listed
October 23, 1992
Type
District
Period
Listed
Ref No.
92001324

About this property

The Snoqualmie Falls Hydroelectric Plant is located just north of Snoqualmie in King County, Washington state, US. It is situated about 22 mi (35 km) east of Seattle. Located just below the Snoqualmie Falls, the power plant consists of two power houses, Plant 1 and Plant 2. Plant 1 was completed in 1899 and is located underground. It is the first completely underground hydroelectric power plant ever built in the world. Plant 2 was built in 1910 and is located along the right bank of the Snoqualmie River. Both plants receive water from a small reservoir created by a weir atop the falls. Plant 1 has an installed capacity of 13.7 MW and Plant 2 a capacity of 40.2 MW for a total installed capacity of 53.9 MW, enough to power 40,000 homes. Plant 1 was added to the National Register of Historic Places as Snoqualmie Falls Cavity Generating Station on April 23, 1976. In 1981, Plant 1 was also designated as an National Historic Civil Engineering Landmark by the American Society of Civil Engineers. The power plant is owned by Puget Sound Energy. In 1992, Snoqualmie Falls Hydroelectric Power Plant Historic District was added to the National Register of Historic Places.

Location

Snoqualmie, King County, Washington
47.54267, -121.83842

Categories

ENGINEERINGINDUSTRY
National Register nomination ›
Sources

Property data from the National Register of Historic Places, National Park Service (public domain).

Description adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

Unlimited access

Everything a full report reveals about Snoqualmie Falls Hydroelectric Power Plant Historic District

This page lists Snoqualmie Falls Hydroelectric Power Plant Historic District. A full Aubrey report for an address near it pulls together this listing alongside battlefield records, land patents, and every other historical record within a chosen radius:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
First month just $5.99, then $11.99 a month. Unlimited locations, cancel anytime.

Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.

Start your Snoqualmie Falls Hydroelectric Power Plant Historic District report
Or see a real report first

Nearby Historic Sites

Snoqualmie Falls
Listed
0 mi
Snoqualmie Falls Cavity Generating Station
Industrial
0.2 mi
Snoqualmie School Campus
Industrial
1.1 mi
Snoqualmie Depot
Industrial
1.1 mi
Messenger of Peace Chapel Car
Industrial
2.2 mi

Questions about this property

When was Snoqualmie Falls Hydroelectric Power Plant Historic District listed on the National Register?

Snoqualmie Falls Hydroelectric Power Plant Historic District was listed on the National Register of Historic Places on October 23, 1992.

What type of historic resource is Snoqualmie Falls Hydroelectric Power Plant Historic District?

Snoqualmie Falls Hydroelectric Power Plant Historic District is classified as a district in the National Register of Historic Places.

What is the period of significance for Snoqualmie Falls Hydroelectric Power Plant Historic District?

The period of significance for Snoqualmie Falls Hydroelectric Power Plant Historic District is recorded as the listed era.

Can I research the history near Snoqualmie Falls Hydroelectric Power Plant Historic District?

Yes. Aubrey Research reports search National Register listings, battlefield records, land patents, and other primary historical sources within any radius of a US address. A report for an address near Snoqualmie Falls Hydroelectric Power Plant Historic District will include this listing and all other historical records in the area.

More in King County

Historic places, battles, and census history across King County.

Explore KingCounty ›

More historic places in Washington

Browse all historic places in Washington.

View Washingtonhistoric sites ›

Conflict records

Explore 19,000+ military engagements across American history.

Browse US conflicts ›

Washington history

Colonial settlement, territorial period, and statehood narrative.

Washingtonhistory ›

Research the history near this site

An Aubrey US report for an address near Snoqualmie Falls Hydroelectric Power Plant Historic District will include this listing alongside battlefield records and other historical sources within your chosen radius.

Research your locationView a free sample report