CT 147

5.09 miles; from Route 17 in Durham to Route 66 in Middlefield. Its orientation changes over those five miles: it's signed south at Route 66, and west at Route 17.

History:

In the 1920s, State Highway 147 followed today's Route 67 between US 6 and Route 63.

The modern Route 147 was commissioned in 1932. That year's state map shows the highway at the same location it has today. By 1938, however, Route 147 is only 2.34 miles long, leading from US 6A (today's Route 66) to Route 157, which continues to Route 17.

In 1968, routes 147 and 157 were modified to their current locations.