From there, Route 60 joins U.S. Route 3 and Route 2A for a brief  concurrency, starting at Massachusetts Avenue. It then turns eastward off of that route, crossing the Mystic River into Medford.
After its initial junction with U.S. Route 3 and Route 2A at Massachusetts Avenue, Route 60 diverges eastward from that route, traversing the Mystic River to reach Medford.