Route 120 is Meriden Avenue, connecting downtown Southington to the Meriden-Waterbury Turnpike. Perhaps it's the quintessential highway for the Land of Steady Habits: short, and unchanged since its inception.

CT 120 History

In the 1920s, State Highway 120 followed today's Route 63 between Naugatuck and New Haven.

The modern Route 120 was commissioned in 1932 from the 1920s SH 326; no changes since then.

A 1984 Hartford Courant article, noting construction on I-691 starting at "Route 120", implies that there might have been a plan to extend Route 120 to I-691 exit 4 along former Route 66. Instead, Route 322 was eventually extended there from Marion.

CT 120 Sources