New Jersey State Route 57 is an east-west highway in Southern Warren County. It runs from New Jersey 182, at Hackettstown, to U.S. Rt. 22, at Phillipsburg. NJ St Rt 57 passes through the following towns in Warren County. Hackettstown Washington Phillipsburg NJ St Rt 57 is not multi-plexed in Warren County. NJ St Rt 57 intersects the following highways in Warren County. New Jersey 182, at Hackettstown. New Jersey State Route 31, at Washington. U.S. Rt. 22, at Phillipsburg.
