Middletown–Portland railroad bridge - Credit: Wikimedia Commons
The Middletown–Portland railroad bridge is a swing truss railroad bridge crossing the Connecticut River and Route 9 in Middletown, Connecticut, just south of the Arrigoni Bridge. The bridge is a Warren through-truss swing bridge with an overall length of and a rotating center span. It is used by the Providence and Worcester Railroad to serve freight customers in Portland. Read more on Wikipedia
Source: en.wikipedia.org