Ogdenburg tunnel


It’s called a double bore tunnel (because it’s really two tunnels) but it’s also known as a backwards tunnel because the smaller tunnel is the one for vehicilar traffic while the larger tunnel is for the nearby river. It is designated as historic because the tunnel is 140 years old.




One response to this post.

  1. Posted by tunnelman on January 11, 2012 at 11:48 PM

    It is called the backwards tunnel(s) because it was constructed first, over the road and the river, then was filled in above until the railroad bed was level.
    A typical tunnel is bored through a hill or mountain. There are many more backwards tunnels on the nearby “New Jersey Cutoff”.


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