sentences:  Heading northbound, state maintenance of NY 331 begins at the Montgomery–Fulton county line as the Montgomery County section of the route is county-maintained as part of County Route 57 (CR 57).NY 331 was assigned as part of the 1930 renumbering of state highways in New York.NY 331 officially begins at the intersection of Kennedy and Crum Creek (CR 57) roads in the Montgomery County town of St. Johnsville.