Auburn Tunnel was a 19th-century canal tunnel built for the Schuylkill Canal near Auburn, Pennsylvania.
It was the first transportation tunnel in the United States.
[4] The tunnel was deliberately added to the canal as a novelty, as the hill it was bored though could have easily been bypassed.
It became a major attraction, with people traveling over 97 miles (156 km)[3] upriver from Philadelphia to see it.
It was periodically shortened, and in 1857 was daylighted to become an open-cut.