- Western Terminus:
- Whitney Avenue (CT 10/SR 707) in Hamden
- Eastern Terminus:
- State Street (US 5) in North Haven
- 1.15 miles
- New Haven
Dixwell Avenue is a major north/south street in New Haven and Hamden. It is designated CT 10 for a few miles in Hamden before curving to the east and then turning north onto Whitney Avenue. Dixwell Avenue continues to the east for a little over a mile as SR 717 to State Street (US 5) in North Haven, where it ends. The SR 717 section of Dixwell Avenue is also designated Truck CT 22 for its entire length.