Sequential numbers along the Adirondack Northway omit Exit 3 between New York 5 (Exit 2) and New York 155 (Exit 4). The southernmost portion of the Northway opened in 1960 with Exit 3 reserved for the future interchange with the Northway-Northside Connection.2,3
The proposed Northway-Northside Connection was numbered as Interstate 687 by 1967 and construction began at the southern terminus interchange (Exit 5A of I-90) by 1971. Changes in the State and Federal funding programs2 and increasing community opposition1,3 however led to the planned freeway being removed from Capital District’s long-range highway plan in 1973. The Interstate was subsequently dropped from the national interstate system plan in 1977.2,3
The Corporate Woods interchange remains as the lone piece of infrastructure built for I-687.1 It provides a high speed entrance to a 30-mile per hour arterial through Corporate Woods business park.