East of the railroad crossing, NY 258 veers northeastward off the town line as it approaches the hamlet of Groveland Station.

In its final 0.25 miles (0.40 km), the route passes over Canaseraga Creek and climbs slightly in elevation upon entering Groveland Station.

[12] The new project proposed to cost $7.4 million (1968 USD), despite opposition of Assemblyman James Emery of Geneseo, who preferred working with the state on improving NY 258.

[13] In March 1968, Emery announced that the New York State Department of Transportation had a project ready to be started for raising NY 258 through the Groveland Flats.

[14] The project to raise NY 258 through the Groveland Flats hit a snag in 1969 due to delays related to the construction of the Genesee Expressway.

Assemblyman Emery was notified that the expressway would be on the section of NY 258 west of the Groveland Flats and there was no reason to continue deferral.