County Route 18 (Otsego County, New York)

County Route 18
Map of Otsego County in central New York with CR 18 highlighted in red, spurs in blue, and former NY 413 backed in pink
Route information
Maintained by Otsego County Highway Department
Length34.83 mi (56.05 km)
Major junctions
South end NY 51 in Butternuts
Major intersections US 20 near Bridgewater
North end CR 2 at the Oneida County line in Plainfield
Location
CountryUnited States
StateNew York
CountyOtsego
Highway system
NY 412 NY 414

County Route 18 (CR 18) is a county-maintained highway in western Otsego County, New York, in the United States. It extends for 34.83 miles (56.05 km) from an intersection with New York State Route 51 (NY 51) in the town of Butternuts to the Oneida County line at Plainfield, where it becomes CR 2. The highway runs along the eastern bank of the Unadilla River and parallels NY 8, which follows the western bank of the river. CR 18 enters the vicinity of several villages and hamlets, including the village of New Berlin and the hamlet of Unadilla Forks.

The portion of CR 18 between Unadilla Forks and U.S. Route 20 (US 20) in Plainfield—a distance of 2.52 miles (4.06 km)—was originally maintained by the state of New York. It was added to the state highway system in 1916 and designated as New York State Route 413 c.1931. The NY 413 designation was removed in the early 1950s.