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The Allegheny Mountain Tunnel is a vehicular tunnel carrying the Pennsylvania Turnpike through the Allegheny Mountains. At this point, the Turnpike carries Interstates 70 and 76. When the tunnel was built, it was considered an "engineering marvel." [1] The tunnel was built in 1939 and is used by 11 million vehicles annually today.
Turn Hole Tunnel, Jim Thorpe, Central Railroad of New Jersey (at the Glen Onoko access, abandoned but popular with Lehigh Gorge State Park guests) [41] [42] Closed to all access by the Pennsylvania Department of Conservation and Natural Resources, the owners of the tunnel, in 2023 because of rocks falling from the ceiling.
Pennsylvania Railroad, Bow Ridge Tunnel: 1907 1987 Former Pennsylvania Railroad: Bow Ridge Derry Township: Westmoreland: PA-357: Sand Patch Tunnel: 1912 1992 CSX Transportation: Negro Mountain: Larimer Township: Somerset
When the Pennsylvania Turnpike opened in 1940, it was known as the "Tunnel Highway" because it traversed seven tunnels: from east to west, Blue Mountain, Kittatinny Mountain, Tuscarora Mountain, Sideling Hill, Rays Hill, Allegheny Mountain, and Laurel Hill. There was one tunnel through each mountain, and the highway was reduced to a single lane ...
The $2.5 million [c] project was to include ramps from both directions to the service plaza, so it could serve both directions. The style of the tunnel bypass was to follow the same style as the Laurel Hill bypass. On November 26, 1968, the three twinned tunnels opened, and the bypass of the Rays Hill and Sideling Hill Tunnels opened.
It was the longest of the original tunnels on the Pennsylvania Turnpike. The Ray's Hill Tunnel and Sideling Hill Tunnel are now part of the Pike2Bike Trail. Together, the two tunnels as well as the roadway are commonly known as the Abandoned Pennsylvania Turnpike. [1] From the Turnpike's opening in 1940 until the realignment projects, the ...
Only one or two canal boats ever went through the tunnel and lock. [11] The tunnel was made obsolete by the arrival of the Pennsylvania Railroad in 1852. The canal tunnel was uncovered during the construction of the U.S. Steel Tower in 1967, [1] and later during the construction of the subway system, which used part of the tunnel on the south side.
The Liberty Tunnels (also known as the Liberty Tubes) are a pair of tunnels located in Pittsburgh, Pennsylvania, United States that allow motorists to travel between the South Hills of Pittsburgh and the city, beneath Mt. Washington. The tunnels were vital in the expansion of the South Hills suburbs by providing a direct route to the city ...