 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 c . 1962 . 
