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Liberty Bridge (Pittsburgh)

Liberty Bridge
The arching Liberty bridge (second from foreground) crosses the Monongahela.
Official name Liberty Bridge
Other name(s) South Hills Bridge
Carries 4 lanes of roadway
Crosses Monongahela River
Locale Pittsburgh, Pennsylvania
Maintained by Allegheny County
Design Cantilever bridge
Material steel
Total length 2,663 feet (812 m)
Longest span 2 spans, each 448 feet (137 m)
Clearance below 44.4 feet (13.5 m)
Opened March 27, 1928 (1928-03-27)

The Liberty Bridge, completed in 1928, connects downtown Pittsburgh, Pennsylvania to the Liberty Tunnels and the South Hills neighborhoods beyond. It crosses the Monongahela River and intersects Interstate 579 at its northern terminus.


  • History 1
  • See also 2
  • References 3
  • External links 4


Liberty Bridge was constructed as the missing link between downtown and Liberty Tunnel, which had been constructed four years earlier in 1924 as a link to the South Hills. It opened on March 27, 1928, following a 5-mile (8.0 km) vehicle parade[1] from the southern suburbs of the city, which crossed Smithfield Street Bridge and proceeded through downtown before ending at the southern end of the new bridge.[2]

See also


  1. ^ "The Liberty Bridge Dedication - 1928". Retrieved October 25, 2010. 
  2. ^ Gruen, J. Philip (August 1997). "Liberty Bridge". Historic American Engineering Record. Washington, D.C.: Library of Congress. p. 7. Retrieved January 28, 2014. 

External links

  • Liberty Bridge on
  • Historic American Engineering Record (HAER) No. PA-448, "Liberty Bridge, Spanning Monongahela River, East Carson Street & Second Avenue at State Route 3069, Pittsburgh, Allegheny County, PA", 11 photos, 1 color transparency, 15 data pages, 1 photo caption page

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