The Central Steam Heat Plant, commonly known as Steam Plant Square, or simply as the Steam Plant, is a historic building in Downtown, Spokane, Washington. Originally built to provide steam heating to more than 300 buildings in Spokane's city center, the Steam Plant served that purpose until the 1980s, when it was no longer viable. In the 1990s, the Steam Plant and adjacent Seehorn-Lang Building were converted into Steam Plant Square, a commercial, retail and restaurant center. The conversion maintained many of the industrial steam plant structures such as furnaces, boilers, catwalks and pipe networks, which can still be seen and explored by visitors and patrons. The Steam Plant's pair of 225 foot tall stacks have been a unique and iconic aspect of the city's skyline for more than a century, and are illuminated from their base at night. If the stacks were considered to be a building, they would rank as the third tallest in the city.
