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Liberty Tunnel

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South Entrance

Photo taken by Scillystuff

License: Creative Commons Attribution-Share-Alike (CC BY-SA)

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BH Photo #309656

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Description 

The Liberty Tunnels (also known as the Liberty Tubes) are a pair of tunnels located in Pittsburgh, Pennsylvania that allow motorists to travel between the South Hills of Pittsburgh and the city, through Mt. Washington. The tunnels were vital in the expansion of the South Hills suburbs by providing a direct route to the city, eliminating the time-consuming task of navigating around or over Mt. Washington and its inclines. The tunnel connects the Liberty Bridge & Saw Mill Run Blvd.

Facts 

Overview
Tunnel on West Liberty Avenue
Location
Pittsburgh, Allegheny County, Pennsylvania
Status
Open to traffic
History
Built 1924
Builder
- Booth & Flinn Co. of Pittsburgh, Pennsylvania
Design
The tunnels were designed by Amos D. Neeld, who would also supervise the construction of the adjoining Liberty Bridge, which gives travelers a way to cross the Monongahela River after passing through the tunnels. The design was two vertical wall horseshoe profile tunnels, each consisting of two lanes of traffic and a 4 ft (1.2 m) sidewalk. The sidewalks, though minimally used and in disrepair, were removed during a renovation in the 1970s in order to widen and increase the height of the transit lanes.
Dimensions
Total length: 5,889.0 ft. (1.1 mi.)
Vertical clearance above deck: 14.0 ft.
Also called
Liberty Tubes
Approximate latitude, longitude
+40.42180, -80.00437   (decimal degrees)
40°25'18" N, 80°00'16" W   (degrees°minutes'seconds")
Approximate UTM coordinates
17/584461/4475049 (zone/easting/northing)
Quadrangle map:
Pittsburgh West
Inventory number
BH 58045 (Bridgehunter.com ID)

Update Log 

  • July 9, 2016: New photos from Royce and Bobette Haley
  • December 10, 2014: New photo from Luke
  • September 17, 2013: Added by Michael Miller

Sources 

  • Michael Miller - michael_a_miller [at] yahoo [dot] com
  • Luke
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com