U.S. Route 1A - Stonington, Connecticut

U.S. Route 1A in Connecticut is a short loop route within the town of Stonington that passes through Stonington borough. US 1 originally went along this route until 1941. US 1A is the only surviving alternate U.S. highway in Connecticut.

The route is 1.93 miles (3.11 km) long and takes the following route: From US 1 to North Water Street, to Trumbull Avenue, to Alpha Avenue, then to Elm St, and back to US 1.