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I-76 (Pennsylvania Turnpike) 4,727 feet (1,441 m) [49] Laurel Hill Tunnel: Cook and Jefferson Townships Pennsylvania Turnpike (abandoned) 4,541 feet (1,384 m) 1940 [50] Lehigh Tunnel: Lehigh and Carbon counties I-476 (Northeast Extension of the Pennsylvania Turnpike) Blue Mountain: 4,400 feet (1,300 m) 1957, 1991 [51] Liberty Tunnel: Pittsburgh
This page was last edited on 10 September 2023, at 11:50 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
This page was last edited on 24 December 2023, at 10:50 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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.
The Pennsylvania Turnpike, sometimes shortened to Penna Turnpike or PA Turnpike, is a controlled-access toll road which is operated by the Pennsylvania Turnpike Commission (PTC) in Pennsylvania. It runs for 360 miles (580 km) across the southern part of the state, connecting Pittsburgh and Philadelphia , and passes through four tunnels as it ...
The Pennsylvania Turnpike Commission started construction on a new toll highway from Carlisle, Pennsylvania to Irwin, Pennsylvania in 1938. When the Pennsylvania Turnpike opened on October 25, 1940, the Sideling Hill Tunnel was one of the seven original tunnels along the highway, six of which were built from the old railroad tunnels from the 1880s.