Garrison Dam, Switchyard, 597 Garrison Dam Road, Riverdale, McLean County, ND

Field notes for HAER ND-15-A, Garrison Dam Powerhouse, include information about the switchyard.

Significance: The switchyard provides generator and line protection, voltage and and amperage monitoring, and power distribution functions for the Garrison Dam powerhouse (HAER ND-15-A).

Unprocessed Field note material exists for this structure: N1591

Survey number: HAER ND-15-C

Building/structure dates: 1951-1955 Initial Construction

Building/structure dates: 1957-1962 Subsequent Work

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1969 - 1980

Library of Congress

https://www.loc.gov/

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