The tunnels themselves are still standing and despite no maintenance in decades are still structurally sound-ironic since the PTC is considering bypassing the deteriorating (yet still active) Allegheny Mountain Tunnel in the near future.
This is somewhat ironic since the PTC is considering bypassing the deteriorating, yet still active, Allegheny Mountain Tunnel in the near future. The tunnels themselves are still standing and despite no maintenance in decades are still structurally sound.
The tunnels themselves are still standing and despite no maintenance in decades are still structurally sound. This is somewhat ironic since the PTC is considering bypassing the deteriorating, yet still active, Allegheny Mountain Tunnel in the near future.
The tunnels themselves are still standing and despite no maintenance in decades are still structurally sound. This is somewhat ironic since the PTC is considering bypassing the deteriorating, yet still active, Allegheny Mountain Tunnel in the near future.