New York State Route 164 (1940–1960s) New York State Route 164 (1940–1960s) New York State Route 164 (NY 164) was a state highway in the New York City Metropolitan Area. It extended for from U.S. Route 9 (US 9) and NY 9A in Yonkers to US 1 in the New York City borough of the Bronx. The route ran mostly along the New York City line and indirectly met both the Saw Mill River Parkway and the New York State Thruway in Yonkers. NY 164 followed McLean Avenue in Yonkers and Nereid and Baychester Avenues in the Bronx. The NY 164 designation was assigned to provide
Upstate New York and the Finger Lakes. There is no clear official boundary between Upstate New York and Downstate New York. The broadest usage of the term Upstate New York excludes only New York City and Long Island, which are always considered to be part of Downstate New York; this usage is common among New York City residents. Another usage locates the Upstate/Downstate boundary further north, at the point where New York City's suburbs segue into its exurbs, as the exurbs do not fall within the US Census' urban area. This latter boundary places most, but not all, of Westchester and Rockland Counties