New York State Route 259 (NY 259) is a north–south state highway located west of Rochester in Monroe County, New York, in the United States. The southern terminus of the route is at an intersection with NY 33A in the hamlet of West Chili within the town of Chili. Its northern terminus is at a junction with the Lake Ontario State Parkway in Parma near the Lake Ontario shoreline. NY 259 meets Interstate 490 (I-490) in Chili and NY 531 south of Spencerport. The junction with I-490 is less than 0.2 miles (0.3 km) from where NY 259 begins at NY 33A.

New York State Route 33A (NY 33A) is an east–west state highway mostly located in Monroe County, New York, in the United States. The route is just over 17 miles (27 km) long and serves as an alternate route of NY 33 between the town of Bergen in Genesee County and the city of Rochester in Monroe County. While NY 33 heads to Rochester by way of Churchville and northern Gates, NY 33A dips south to pass through Chili and southern Gates. NY 33A was assigned as part of the 1930 renumbering of state highways in New York, but only from Riga to Rochester. It was extended westward to its current terminus in Bergen c. 1932.