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HAER PA,2-PITBU,64--12 (CT) 3/4 VIEW FROM RIVERBANK, FROM SOUTH. - Liberty Bridge, Spanning Monongahela River, East Carson Street & Second Avenue at State Route 3069, Pittsburgh, Allegheny County, PA |
On the left side of this image you can see the concrete retaining wall above the tunnel's north portal. Also of interest is that there are still some industrial buildings along the river.
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Street View |
On the left side, you can see some of the concrete of the tunnel portals.
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Street View |
North Portal
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Street View |
South Portal
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Street View |
This photo of the Panhandle Bridge also has a good view of the Liberty Bridge and North Portal.
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BrooklineConnection via Dennis DeBruler, License: Creative Commons Attribution-Share-Alike (CC BY-SA) |
The 5,889' Liberty Tubes penetrate the 400' high, 5-mile long Mount Washington and provide access to the South Hills. [pghbridges-bridge, pghbridges-tunnel]
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Postcard via BridgeHunter-bridge |
I have not found out what work was being done on the bridge to cause it to be shrouded in tarps. But I presume this image was taken around 2016 because a fire in the tarps caused the bridge to be closed Sep 2, 2016. 30' of the truss was damaged, including a buckled compression member. [cbsnews]
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3D Satellite |
The tunnels were completed in 1922, but the opening was put off until 1924 after a ventilation solution was added. That solution was not adequate so vertical shafts were added at the midpoints to a ventilation building on top of Mt. Washington. "Carrying 25,000 vehicles in 1932, the Tubes were over their designed capacity. In 2000, the average daily traffic was 63,027." A proposal for an interchange between Saw Mill Run Blvd. and West Liberty Av. was made in 1919. An interchange was finally built in 1999. [phgbridges-tunnel]
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