In Rhode Island, US 6 was originally Route 3 of the New England Interstate Routes, designated in 1922. The part of Route 3 in Rhode Island ran roughly how US 6 does now; the main differences were in Scituate (where it used US 6 Business) and from Johnston east through Providence and East Providence (where it used US 6A, Broadway, Washington Street, Waterman Street, the old Red Bridge and Waterman Avenue, and then turned south on Pawtucket Avenue and east along current Route 103 to reach Massachusetts).