At one time, the main road east from Providence (at first NE 3, now U.S. Route 6 or US 6) used Route 103 rather than the current US 6 alignment. Maps disagree on when the change to the current alignment took place. However, rather than using Warren Avenue to the Washington Bridge, the main road continued north on Pawtucket Avenue to Waterman Avenue, and used Waterman Avenue over the old Red Bridge to Providence. When the main road was moved to current US 6, it at first continued to use Waterman Avenue via MA 114A and County Street to the state line.