Skeet Club Road, Reeds Gap Road, Main Street, Forest Street, Middlefield Street, West Street
- Southern Terminus:
- Wallingford Road (CT 68) in Durham
- Northern Terminus:
- Washington Street (CT 66) in Middletown
- 6.86 miles
CT 157 is a diagonal route running northeast from Wallingford Road (CT 68) in Durham through Middlefield to end at Washington Street (CT 66) in Middletown. It provides access to Wadsworth Falls State Park.