31st Street Bridge
Thirty-First Street Bridge
|Carries||2 lanes of 31st Street|
|Crosses||Allegheny River; Washington's Landing|
|Official name||William Raymond Prom Memorial Bridge|
|Other name(s)||31st Street Bridge|
|Total length||2,681 feet (817 m)|
|Longest span||360 feet (110 m)|
|Clearance below||72.6 feet (22.1 m)|
The William Raymond Prom Memorial Bridge, commonly known as the 31st Street Bridge, is an arch bridge that carries vehicular traffic across the Allegheny River between the Pittsburgh neighborhoods of Troy Hill and the Strip District. The bridge passes over, but does not serve, Washington's Landing, which is connected to the mainland by the 30th Street Bridge. Sidewalks along the bridge feature viewing platforms.
The bridge was built in 1927–1928 to replace an earlier through truss bridge aligned with 30th Street. This earlier bridge was built in 1887 but was destroyed by fire on July 8, 1921. The 1887 bridge itself replaced a two span iron truss which was destroyed by a flood in 1882. A cable suspension footbridge was provided as a crossing whilst the new 31st Street bridge was being constructed.
The bridge was due to close on Tuesday January 31, 2006 for a proposed $27 million refurbishment which would take two years. It eventually closed on February 14, 2006 and reopened by Mayor Luke Ravenstahl on November 21, 2007.
The bridge was renamed in 2013, from its former name of Thirty-First Street Bridge, Number Six Allegheny River to William Raymond Prom Memorial Bridge, to honor William R. Prom, who was killed in Vietnam.
- "Bridges and Tunnels of Allegheny County, PA – 31st Street Bridge". November 3, 2000. Retrieved February 3, 2010.
- "31st Street Bridge Closed". ThePittsburghChannel.com. January 26, 2006. Retrieved February 3, 2010.
- Joe Grata (November 9, 2006). "31st Street Bridge to reopen". Pittsburgh Post-Gazette. Retrieved February 3, 2010.
- Schmitz, Jon (August 17, 2012). "31st Street Bridge Goes Out with a Blast". Pittsburgh Post-Gazette. Retrieved August 19, 2012.
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