 It opened by 1968 as a realignment of NY 245, which overlapped US 15 and NY 21 north from the expressway to rejoin its previous routing in Wayland.On January 1, 1970, the entirety of the Genesee Expressway, including its proposed routing south to Avoca and north to Rochester, was redesignated as NY 401.NY 245 was then realigned to follow its previous at-grade routing between Dansville and Wayland.