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File:Credit TR. Dam No. 4 after 1936 flood; break as seen from upstream side. Photo c. 1936. - Dam No. 4 Hydroelectric Plant, Potomac River, Martinsburg, Berkeley County, WV HAER WVA,2-SHEP.V,1-41.tif

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Credit TR. Dam No. 4 after 1936 flood; break as seen from upstream side. Photo c. 1936. - Dam No. 4 Hydroelectric Plant, Potomac River, Martinsburg, Berkeley County, WV
Title
Credit TR. Dam No. 4 after 1936 flood; break as seen from upstream side. Photo c. 1936. - Dam No. 4 Hydroelectric Plant, Potomac River, Martinsburg, Berkeley County, WV
Depicted place West Virginia; Berkeley County; Martinsburg
Date Documentation compiled after 1968
Dimensions 4 x 5 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HAER WVA,2-SHEP.V,1-41
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • 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
Source https://www.loc.gov/pictures/item/wv0222.photos.172898p
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

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