Morony Hydroelectric Facility, Dam and Powerhouse, Morony Dam Road, Great Falls, Cascade County, MT

Significance: It is significant as a very-well preserved example of design concepts common to the era standardization in US history of hydroelectric development (ca. 1929-1930). Design concepts reflected by the plant include the integration of the dam, powerhouse, and water intake system into a single structure; the use of fewer but much larger turbine-generators then in previous eras; and the location of a plant's transformers and gantry crane outside of instead of inside the powerhouse. In addition to the main turbine-generator units, the exciters, governors, transformers, and other hydroelectric equipment at the plant were state-of-the-art technologies for the time. The Dam and Powerhouse also derives the significance as an outstanding refection of an industrial structure rendered in the Art Deco style.

Survey number: HAER MT-135-B

Building/structure dates: ca. 1929 Initial Construction

dams powerhouses hydroelectric power plants art deco architectural elements great falls morony dam powerhouse morony dam road great falls cascade cascade county montana energy generation historic american engineering record photo morony hydroelectric facility ultra high resolution high resolution us history power plants power generator hydro electric power library of congress

1929

Library of Congress

http://www.loc.gov/

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