hamlet. In the hamlet of Pound Ridge, NY 172 becomes a commercial street, intersecting with NY 137 (Westchester Avenue). This intersection serves as the eastern terminus for NY 172. History NY 172 was established as part of the 1930 renumbering of state highways in New York. Originally, it only extended between Mount Kisco and Bedford Village. The section east of NY 22 was originally maintained by Westchester County as part of County Route 3 (CR 3) from NY 22 to Long Ridge Road and as CR 103 from Long Ridge Road to NY 137. On September 1, 1980, ownership and maintenance of Pound Ridge Road between Bedford and Pound Ridge was transferred from the county to the state of New York as part of a larger highway maintenance swap between the two levels of government. Pound Ridge Road became an extension of NY 172 following the swap. Major intersections See also List of county routes in Westchester County, New York References External links Unbuilt Ossining–South Salem Expressway info at NYCROADS.com Transportation in Westchester County, New York 172