- Western Terminus:
- West Main Street (US 1) in Branford
- Eastern Terminus:
- Boston Post Road (US 1) in Guilford
- 13.00 miles
- New Haven
CT 146 is an east/west route that runs between Branford and Guilford. It follows a curvy, winding route through the wooded area along the shoreline. Most of CT 146 is a designated scenic route, and it is especially scenic in the autumn. The entire length is a two-lane undivided road with stop signs and a few traffic lights.