Power Plant and Dam No. 4
Power Plant and Dam No. 4, September 1980
|Location||On the Potomac River north of County Route 5 at Scrabble, near "Shepherdstown, West Virginia|
|Area||6 acres (2.4 ha)|
|"MPS||Berkeley County MRA|
|NRHP reference #|||
|Added to NRHP||December 10, 1980|
Power Plant and Dam No. 4 is a historic "hydroelectric power generation station on the "Potomac River, located near "Shepherdstown on the county line between "Berkeley and "Jefferson County, West Virginia. The power plant is a tall one-story, limestone building on a high stone foundation. It is five bays long and has a gable roof. Dam 4 uses 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. The building is built into a hillside, so the main floor is the top floor. The power plant was originally built by the Martinsburg Electric Company.
The dam was originally built for the "Chesapeake and Ohio Canal. In June 7, 1832, the contract was awarded to Joseph Hollman, and the work was completed in June 1835, at a cost of $50.803.15 To avoid construction costs, the canal entered the slackwater above the dam, and continued in the slackwater for about 3 miles. This area was dubbed "Big Slackwater" by the canallers.
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