Former numbering for Maple Avenue in Old Saybrook, a 1.85-mile route bisecting the Route 154 loop south of US 1 from southwest to northeast. In 1932, this was part of Route 154 itself; but in 1935, that segment of Route 154 was relocated to Old Hammock Road, and Maple Avenue became Route 154A.

In 1963, Route 154A was deleted and Maple Avenue became a town road. Local officials tried to persuade the state to retain the road, but failed.