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Long Bridge

Long Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: May 19, 2018

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Key Facts

Facility Carried / Feature Intersected
Railroad (CSX, Amtrak, Virginia Railway Express) Over Potomac River
Washington and Arlington: District of Columbia and Arlington County, Virginia: United States
Structure Type
Metal Rivet-Connected Pratt Through Truss, Movable: Swing (Center Pier) and Approach Spans: Metal Through Girder, Fixed
Construction Date and Builder / Engineer
1904 By Builder/Contractor: Unknown

Technical Facts

Rehabilitation Date
Main Span Length
275 Feet (83.8 Meters)
Structure Length
2,529 Feet (770.8 Meters)
Roadway Width
28.6 Feet (8.72 Meters)
1 Main Span(s) and 22 Approach Span(s)
NBI Number
Not Applicable

Historic Significance Rating (HSR)
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Bridge Documentation

This bridge's future is at risk!

Bridge Status: Study underway to determine future of bridge, risk of demolition exists.

This swing truss bridge was built in 1902-04 although the approach spans used altered or improved versions of the existing fixed approach truss spans from the previous bridge In 1942-43 the truss spans were replaced with through plate girder spans which were shorter and required additional piers added. Thus, the swing span is a 1904 structure, while the rest of the superstructure dates to 1942-3. The swing truss span is an unusual design with only two panels of the top chord having a non-horizontal angle, giving the truss a weird looking shape. Also, the swing pier bearing design is unusual, it is possible this may be a center-bearing swing bridge which was almost never done with railroad bridges. The bridge no longer opens for boats, and last operated on March 3, 1969. The bridge may be at risk for demolition and replacement as a study was done on the bridge.

Download Archive of Long Bridge Study Documents


Photo Galleries and Videos: Long Bridge

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