High Quality Content by WIKIPEDIA articles! New York State Route 17F (NY 17F) was a state highway located in the Southern Tier of New York in the United States. The western terminus of the route was at then-NY 17 (now NY 417) in Andover, Allegany County. The eastern terminus was at NY 17 (current NY 417) in Addison, Steuben County. NY 17F was an alternate to NY 17 between the two locations, branching north to serve Almond, Hornell, and Canisteo.