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New York State Route 31

New York State Route 31 marker

New York State Route 31
Map of western and central New York with NY 31 highlighted in red
Route information
Maintained by NYSDOT, the cities of Niagara Falls, Lockport, and Rochester and the villages of Medina and Newark
Length: 208.74 mi (335.93 km)
Existed: mid-1920s – present
Major junctions
West end: NY 104 in Niagara Falls
  NY 78 in Lockport
NY 98 in Albion
NY 19 near Brockport
NY 390 in Greece
I-490 in Rochester
NY 21 in Palmyra
NY 14 in Lyons
NY 690 in Baldwinsville
NY 57 in Liverpool
I-81 in Cicero
NY 13 north of Canastota
East end: NY 26 in Vernon
Location
Counties: Niagara, Orleans, Monroe, Wayne, Ontario, Seneca, Cayuga, Onondaga, Madison, Oneida
Highway system
NY 30A NY 31A
NY 233 NY 234 NY 235

New York State Route 31 marker

New York State Route 31 (NY 31) is a state highway that extends for 208.74 miles (335.93 km) across western and central New York in the United States. The western terminus of the route is at an intersection with NY 104 in the city of Niagara Falls. Its eastern terminus is at a traffic circle with NY 26 in Vernon Center, a hamlet within the town of Vernon. Over its routing, NY 31 spans 10 counties and indirectly connects three major urban areas in Upstate New York: Buffalo–Niagara Falls, Rochester, and Syracuse. The route is one of the longest routes in New York State, paralleling two similarly lengthy routes, NY 104 to the north and NY 5 to the south, as well as the Erie Canal, as it proceeds east.

Much of NY 31 west of Jordan was originally designated as part of a legislative route from the late 1900s to the early 1920s. NY 31 itself was assigned in the mid-1920s, utilizing all of legislative Route 30 (modern NY 31, NY 429, and NY 104) west of Rochester and much of its current alignment from Rochester to Lenox. At Lenox, NY 31 turned southeast to follow what is now NY 316 and NY 46 to NY 5 in Oneida. It was realigned by 1929 to continue west to Lewiston on Ridge Road and altered in the 1930 renumbering of state highways in New York to continue east to Utica via Verona. With the advent of U.S. Route 104 (US 104) c. 1935, NY 31 was realigned west of Rochester to follow most of its modern routing.


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