 New York State Route 12F | ||||
|---|---|---|---|---|
 Map of Jefferson and Lewis counties with NY 12F highlighted in red | ||||
| Route information | ||||
| Auxiliary route of NY 12 | ||||
| Maintained by NYSDOT and the city of Watertown | ||||
| Length | 6.89 mi[1] (11.09 km) | |||
| Existed | 1930[2]–present | |||
| Major junctions | ||||
| West end |  NY 180 near Dexter | |||
 I-81 in Watertown | ||||
| East end |   US 11 / NY 12 in Watertown | |||
| Location | ||||
| Country | United States | |||
| State | New York | |||
| Counties | Jefferson | |||
| Highway system | ||||
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New York State Route 12F (NY 12F) is an east–west state highway in Jefferson County, New York, in the United States. It extends for 6.89 miles (11.09 km) from an intersection with NY 180 in the town of Hounsfield to a junction with U.S. Route 11 (US 11) and NY 12 in the city of Watertown. The route follows a parallel routing to that of NY 12E between the vicinity of the village of Dexter and the city of Watertown. While NY 12E runs along the north side of the Black River through this area, NY 12F follows the southern bank. Just east of NY 180, NY 12F serves Watertown International Airport.
Modern NY 12F was added to the state highway system in 1916 and designated as part of NY 3 in 1924. In the 1930 renumbering of state highways in New York, NY 3 was moved onto a new alignment to the east and its former alignment between Watertown and Clayton became NY 12E. Also assigned at this time was NY 12F, which initially used what is now NY 12E from Dexter to Watertown. The alignments of NY 12E and NY 12F east of Dexter were swapped c. 1939.