in North Castle was assigned the NY 120A designation. It began at Westchester Avenue and went north to the Connecticut state line via Ridge Street, where it turned northwest to follow King Street to NY 120. The section of King Street between Ridge Street and Port Chester was designated as NY 120B by 1932. NY 120A was truncated to consist only of the Ridge Street portion of its alignment while NY 120B was extended northwest along King Street to NY 120 in North Castle and southward along NY 119 and Ridge Street to a terminus at NY 120 in Rye. The NY 120B designation was eliminated by the following year, at which time NY 120A was reextended along King Street to North Castle and realigned east of Ridge Street to follow old NY 120B into Port Chester. NY 119 was truncated on its east end to NY 22 in White Plains in October 1960 while NY 120 was rerouted to follow what had been NY 119A south to Rye along Purchase Street. The former routing of NY 119 and NY 120 from Purchase Street to downtown Port Chester became an extension of NY 120A. On September 1, 1980, ownership and maintenance of the section of NY 120A leading southeast from the northwestern crossing into Connecticut was transferred from Westchester County to the state of New York as part of a highway maintenance swap between the two levels of government. The road was one of 10 highways exchanged during the swap. That same day, the routing of NY 120A in Port Chester was modified slightly to follow North Pearl Street between Westchester Avenue and King Street. Major intersections See also List of county routes in Westchester County, New York References External links Kurumi's Route 120A page 120A Transportation in Westchester County, New York Port Chester, New York Greenwich, Connecticut Transportation in Fairfield County, Connecticut