Harman Patil (Editor)

B and O Railroad Potomac River Crossing

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Built
  
1851

Demolished
  
1936 (flood)

Opened
  
1851

Body of water
  
Potomac River

Architect
  
Wendel Bollman

Architectural style
  
Other

NRHP Reference #
  
78001484

Area
  
6 ha

Added to NRHP
  
14 February 1978

B & O Railroad Potomac River Crossing httpsuploadwikimediaorgwikipediacommonsthu

Location
  
Harper's Ferry, West Virginia

Similar
  
St Peter's Roman Catholic, Elk Ridge, Bollman Truss Railroad, Harpers Ferry National, Harpers Ferry station

The Baltimore and Ohio Railroad Crossings at the Potomac River are a set of railroad bridges that span the Potomac River between Maryland Heights, Maryland and Harpers Ferry, West Virginia in the United States.

History

The original Harper's Ferry operated from 1747 until it was replaced by a timber covered road bridge in about 1824 at the confluence of the Potomac and Shenandoah Rivers.

In 1839, the B&O's first crossing over the Potomac was an 830 feet (250 m) covered wood truss. The single-track bridge, which comprised six river spans plus a span over the Chesapeake and Ohio Canal, was designed by Benjamin Henry Latrobe, II. Latrobe designed a "Y" span for the route to Winchester, which was added to the bridge in 1839. The bridge was destroyed during the American Civil War and was subsequently replaced by temporary structures.

In 1851, a second bridge was built across the Shenandoah becoming was one of the earliest Bollman trusses in existence. A newer Bollman truss bridge, which carried both rail and highway traffic, opened in 1870. It was washed away in a flood in 1936.

The two crossing today, which are on different alignments, are from the late 19th century and early 20th century. A steel Pratt truss and plate girder bridge was built in 1894 to carry the B&O Valley line (now the CSX Shenandoah Subdivision) toward Winchester, Virginia along the Shenandoah River. This was complimented in 1930-31 with a deck plate girder bridge that carries the Baltimore and Ohio Railroad (B&O) main line to Martinsburg, West Virginia (the line is now the CSX Cumberland Subdivision).

A rail tunnel was built at the same time as the 1894 bridge to carry the line through the Maryland Heights bypassing a sharp curve. In the 1930s the western end of the tunnel was widened in during the construction of the second bridge to allow the broadest possible curve across the river.

References

B & O Railroad Potomac River Crossing Wikipedia