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| 𝗥𝗲𝗺𝗲𝗺𝗯𝗲𝗿 𝗪𝗵𝗲𝗻: 𝗣𝗲𝗻𝗻𝘀𝘆𝗹𝘃𝗮𝗻𝗶𝗮 and Ohio posted Allegheny Mountain Twin Tunnels • circa 1960s!* Greg Smith: On the upper right is where the original, partial bore had been made for the never-completed railroad. That may be why the white arrow is on the image. |
Given the curve in the roads in the above photo, we must be looking at the East Portal.
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| Satellite |
The 6,070' (1,850m) long tunnel is the longest active tunnel in Pennsylvania.
A design is expected in 2028 to replace the tunnel with daylight.
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| paturnpike |
I wonder how deep the cut will be and thus how steep the ruling grade will be.
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| 1967/60 Berlin and New Baltimore Quads @ 24,000 |
The Pennsylvania Turnpike is a major toll highway spanning across the state of Pennsylvania, serving as a key transportation corridor for both commuters and commercial vehicles. Known as America’s first superhighway, it set the standard for modern interstate design. It connects major cities, supports economic growth, and offers scenic drives through Pennsylvania’s diverse landscapes.
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