Dam No. 4 Hydroelectric Plant, Potomac River, Martinsburg, Berkeley County, WV

Significance: Each plant epitomized the predominant low head hydroelectric technology in use at the time of its construction, Dam 4 uses tandem, multiple-runner, horizontal shaft turbines connected by rope drives to horizontal shaft generators. This plant is probably the last commercially operated rope-driven hydroelectric plant in the United States.

Unprocessed Field note material exists for this structure: FN-16

Survey number: HAER WV-27

hydroelectric power plants martinsburg dam hydroelectric hydroelectric plant potomac potomac river berkeley berkeley county energy generation west virginia historic american engineering record photo ultra high resolution high resolution industrial history power generator power plants library of congress electric power

1969 - 1980

Library of Congress

http://www.loc.gov/

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