New York State Route 100B

New York State Route 100B
New York State Route 100B
Dobbs Ferry Road
	Map of Westchester County in southeastern New York with NY 100B highlighted in red
Route information
	Auxiliary route of NY 100
	Maintained by NYSDOT
Length	2.88 mi (4.63 km)
Existed	late 1930s–present
Major junctions
West end	NY 9A in Greenburgh
	Sprain Brook Parkway in Greenburgh
East end	NY 119 in Fairview
Location
Country	United States
State	New York
Counties	Westchester
Highway system
	New York Highways; Interstate; US; State; Reference; Parkways;

New York State Route 100B (NY 100B) is a 2.88-mile (4.63 km) spur route of NY 100 in Westchester County, New York, in the United States. The route follows Dobbs Ferry Road across the southern part of the town of Greenburgh, connecting NY 9A to NY 119. It does not directly connect to NY 100; however, it intersects NY 100A about 1 mile (1.6 km) west of NY 119. NY 100B was assigned in the late 1930s.

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