New York State Route 45

New York State Route 45
Map of Rockland County in southeastern New York with NY 45 highlighted in red
Route information
Maintained by NYSDOT
Length	8.57 mi[1] (13.79 km)
Existed	January 1, 1949[2]–present
Major junctions
South end	CR 73 at the New Jersey state line in Chestnut Ridge
Major intersections	NY 59 in Spring Valley Palisades Parkway in Pomona
North end	US 202 / CR 47 / Palisades Parkway in Mount Ivy
Location
Country	United States
State	New York
Counties	Rockland
Highway system
New York Highways Interstate US State Reference Parkways
← US 44 → NY 46

New York State Route 45 (NY 45) is a north–south state highway in central Rockland County, New York, in the United States. It spans 8.57 miles (13.79 km) from the village of Chestnut Ridge at the New Jersey–New York border, where it becomes County Route 73 (CR 73) in Bergen County, New Jersey, to U.S. Route 202 (US 202) in the town of Haverstraw. Though an interchange does exist between NY 45 and the Palisades Interstate Parkway, the route has no access to the New York State Thruway.

NY 45 was originally designated as New York State Route 305 as part of the 1930 renumbering of state highways in New York. It was renumbered to New York State Route 94 in the early 1940s before becoming NY 45 on January 1, 1949.