This is based on the two 2-track spans over the lower Housatonic River connecting Millford
and Stratford in Connecticut. This is also known as the Devon Railroad Bridge, the John McMahan
Bridge, and Bridge 48.50. It carries Metro North's New Haven Line of the Northeast Corridor and.
was built in 1905 by the New haven Railroad. This is normally open and will close at the approach
of a train on any of the 4 tracks when it gets within about 80 meters from either end of the bridge.