 New York State Route 324 | ||||
|---|---|---|---|---|
 Map of the Buffalo–Niagara Falls area with NY 324 highlighted in red, and NY 325 in blue | ||||
| Route information | ||||
| Maintained by NYSDOT, NYSTA, and Erie County | ||||
| Length | 22.51 mi[1] (36.23 km) | |||
| Existed | c. 1933[2][3]–present | |||
| Major junctions | ||||
| West end |    I-190 / NY 384 / Niagara Scenic Parkway in Niagara Falls | |||
I-190 on Grand Island NY 265 in Tonawanda I-290 in Amherst NY 78 in Amherst / Clarence | ||||
| East end |  NY 5 in Clarence | |||
| Location | ||||
| Country | United States | |||
| State | New York | |||
| Counties | Niagara, Erie | |||
| Highway system | ||||
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New York State Route 324 (NY 324) is an east–west state highway located in the western portion of New York in the United States. Officially, NY 324 begins at NY 384 in Niagara Falls and overlaps Interstate 190 (I-190, the Niagara Section of the New York State Thruway) south to Grand Island, where it separates from I-190 and continues southward as Grand Island Boulevard. As signed, however, NY 324 begins at the southern end of the official overlap and is contained entirely within Erie County. At the southern edge of Grand Island, NY 324 joins I-190 to cross over to the mainland, where it runs due east across three towns before reaching its eastern end at a junction with NY 5 in the town of Clarence.
NY 324 is known by two names along its routing: Grand Island Boulevard on Grand Island and Sheridan Drive in the northern suburbs of Buffalo. As the latter, the route serves as a major commercial strip for Tonawanda, Amherst, and Clarence. NY 324, assigned c. 1933, is one of two routes to occupy part of Sheridan Drive; the other is New York State Route 325, which follows the westernmost 1.42 miles (2.29 km) of the street. NY 324 once extended northwest to downtown Niagara Falls; however, it was truncated to its current western terminus on January 1, 1962.