Washington Water Power Company Monroe Street Plant, Units 4 & 5, South Bank Spokane River, below Monroe Street Bridge, Spokane, Spokane County, WA

Significance: Installed in Washington Water Power Company's (WWPC) Monroe Street Plant in 1903, Generating Units 4 and 5 are believed to be the oldest turbine-generator units still operating in the State of Washington. The two alternating current (AC) generators exemplify technological development of early twentieth century hydroelectric potential and long-distance power transmission. Installation and operation of the generating units dramatically influenced progress and growth of manufacturing and mining in eastern Washington and northern Idaho. Generating Units 4 and 5 were determined eligible for inclusion in the National Register of Historic Places in 1983.

Survey number: HAER WA-29

Building/structure dates: 1903 Initial Construction

hydroelectric power plants fort spokane monroe washington water power company monroe street plant units bank spokane south bank spokane river bridge monroe street bridge spokane county washington state energy generation general electric company historic american engineering record photo ultra high resolution high resolution power plants manufacturing plants manufacturing industrial history power generator mining industry library of congress water supply electric generating plant electric power power generation national register of historic places

1969 - 1980

Library of Congress

http://www.loc.gov/

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