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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 |
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