Connecticut Route 72 - History

History

Route 72 was established in the 1932 state highway renumbering between Route 66 (then Route 14) in Middletown to Route 10 in Plainville. Since then, the route has been extended west and north and relocated to an expressway. The original route has been transferred to Routes 3 and 372.

In 1942, a portion of US 6 in Bristol and Plymouth was transferred to Route 72 after a realignment of US 6 to use former US 6A. Another section of Route 72 was realigned in Berlin the same year with the construction of an interchange with the Berlin Turnpike. In 1954, the former Routes 117 (Bristol to Torrington) and 49 (Torrington to Norfolk) were transferred to Route 72, extending the route through Torrington to the Massachusetts state line.

In 1962, the section of Route 72 north of modern Route 4 was transferred to a relocated Route 4 and a new Route 272, resulting in the current northern/western terminus. The section from Plainville to Berlin was later upgraded to an expressway. In 1978, the old surface route of Route 72 was assigned as Route 372. In 1990, a freeway connection from the east end of the Route 72 freeway to the west end of the Route 9 freeway opened. The Route 9 designation was extended westward to the current Route 9/72 interchange. Route 372 was extended east along the old Route 72 alignment to Route 3 while Route 3 was extended south along the old Route 72 alignment to Route 66.