In 1908, the New York State Legislature created Route 25, an unsigned legislative route that began at Whitesboro and passed through Marcy, Holland Patent and Barneveld before traversing Adirondack Park on its way to Albany. The portion of Route 25 between the western village line of Whitesboro and Careys Corners was also part of Route 28, which went from Maple View to Utica via Rome, Marcy, and Whitesboro. Route 25 was truncated to end at Careys Corners on March 1, 1921, eliminating the overlap with Route 28. When the first set of posted routes in New York were assigned in 1924, all of legislative Route 28 east of Colosse became NY 11. Also assigned at this time was NY 12, which connected Utica to Barneveld; however, it used a more direct route to the east rather than the more circuitous route via legislative Route 25. NY 11 was renumbered to NY 76 in 1927 to eliminate the numerical duplication with the newly designated U.S. Route 11.