Potomac Edison Company, Chesapeake & Ohio Canal Bridge, Spanning C & O Canal South of U.S. 11, Williamsport, Washington County, MD

Significance: The Chesapeake & Ohio Canal Lift Bridge is significant as a rare surviving example of a short-span railroad vertical lift bridge, for its unusual design elements to allow unimpeded passage of canal boats pulled by animals treading the canal's towpath, and for the economy of its design. It is the only such structure built across the Chesapeake & Ohio Canal.

Unprocessed Field note material exists for this structure: FN-19

Unprocessed Field note material exists for this structure: N1105

Survey number: HAER MD-23

Building/structure dates: 1923 Initial Construction

Building/structure dates: 1936 Subsequent Work

Building/structure dates: ca. 1970 Subsequent Work

railroad bridges vertical lift bridges gears hoisting machinery counterweights wheels turnbuckles terra cotta warren trusses riveted joints steel girders canals maryland potomac edison potomac edison company chesapeake ohio bridge ohio canal bridge canal south williamsport washington county transportation towers motors inc allegheny power system william e barrett renee bieretz chesapeake and ohio canal fancus machine company historic american engineering record anne e kidd j lawrence lee dana lockett jet lowe christopher h marston new york central iron works potomac public service sanderson and porter engineers and constructors sam tamburro western maryland railway westinghouse electric corporation photo design library of congress architectural diagrams

1970

Library of Congress

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