High Quality Content by WIKIPEDIA articles! New York State Route 9X (NY 9X) was a state highway located within New York City. It served as an alternate route of U.S. Route 9 (US 9) through Manhattan and the Bronx. The southern terminus of the route was in the Manhattan neighborhood of Inwood; its northern terminus was in the Bronx neighborhood of Kingsbridge. NY 9X was assigned ca. 1936; however, the road had been signed as a numbered highway since 1934. The designation was removed entirely in the 1940s.