Georgetown Steam Plant, part I of II

Behind a pair of unremarkable doors, a remarkable bit of history is preserved.

Georgetown Steam Plant back doorDecrepit door

The Georgetown Steam Plant was built in 1906, with the initial goal of powering a train line between Seattle and Tacoma.

Stream engineA very large conduit

The steam plant was built almost twenty-five years after Thomas Edison introduced electricity as a consumer product.  Electricity was rapidly going from modern marvel to commodity on the East coast, and demand for a steady supply had reached the Pacific Northwest.


In addition to the Interurban Railway, the plant also powered Seattle streetcars and provided residential and industrial AC power to Georgetown, at the time an independent city.

Steering wheelMuseum interior

The steam plant was built for the Seattle Electric Company by the engineering firm Stone & Webster, who were later key participants in the Manhattan Project.

Pipe mazeSmall engine

The plant used a pair of first-generation Curtis Vertical Steam Turbo-generator turbines, manufactured by General Electric.  The iPhone of its day, the Curtis was the first large-scale steam turbine developed by GE.

Looking up from below

In 1917, a third turbine generator was installed.  The steam needed to operate the plant was supplied by 16 boilers, fired using fuel oil or coal.

Steampunk pipesSteampunk pipes

The plant remained in operation until 1964.  It was kept on standby from 1971 through 1977, as part of a emergency power reserve plan for the region.  In 1977 the plant was officially decommissioned.  Three years later it became a Historic Mechanical Engineering Landmark.  In 1984, it was designated a National Historic Landmark.

Steam engineForbidden ladder

The Georgetown Steam Plant now operates as the Georgetown PowerPlant Museum, open to the public on the second Saturday of each month.  The plant’s turbines remain operational, thanks to the tireless work of Lilly Tellefson and the late Paul Carosino.  According to the museum’s literature, these are the world’s last operable examples of early vertical steam generating turbines.

The complete Flickr set.

2 thoughts on “Georgetown Steam Plant, part I of II”

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: