High Quality Content by WIKIPEDIA articles! New York State Route 690 (NY 690) is a state highway in Central New York. NY 690`s southern terminus is at an interchange with the New York State Thruway (Interstate 90) and Interstate 690 in Van Buren. The northern terminus is at an intersection with NY 48 and NY 631 in Lysander. NY 690 serves the northwest suburbs of Syracuse and Onondaga County. It also provides a link to routes that run into the populated areas of Oswego County, because its northern terminus is just a few miles shy of the county line.