U.S. Federal Route 6A runs east-west in Eastern Providence County. It runs west of the downtown Providence Area. U.S. Rt. 6A passes through the following towns in Providence County. Providence Hartford Johnston U.S. Rt. 6A is not multi-plexed in Providence County. U.S. Rt. 6A intersects the following highways in Providence County. U.S. Rt. 6, at Providence. Rhode Island State Route 128, at Hartford. U.S. Rt. 6, at Providence.