New York State Route 117

New York State Route 117
Map of Westchester County with NY 117 highlighted in red
Route information
Maintained by NYSDOT
Length	15.23 mi[1] (24.51 km)
Existed	1930[2]–present
Major junctions
West end	US 9 / Rockwood Road in Mount Pleasant
Major intersections	NY 9A / NY 100 in Mount Pleasant Taconic State Parkway in Mount Pleasant Saw Mill River Parkway in Pleasantville and Bedford
North end	I-684 / NY 35 in Bedford
Location
Country	United States
State	New York
Counties	Westchester
Highway system
New York Highways Interstate US State Reference Parkways
← NY 116 → NY 118

New York State Route 117 (NY 117) is a 15.23-mile (24.51 km) state highway in Westchester County, New York, in the United States. The southern terminus of the route is at an intersection with U.S. Route 9 (US 9) north of the village of Sleepy Hollow. The northern terminus is at an interchange with the Saw Mill River Parkway just south of Interstate 684 (I-684), south of Katonah, a hamlet in the town of Bedford. NY 117 meets the Taconic State Parkway in Pleasantville and parallels the Saw Mill Parkway from Pleasantville to Bedford.

NY 117 was assigned as part of the 1930 renumbering of state highways in New York and originally extended from Tarrytown to Katonah. The Tarrytown–Pleasantville portion of NY 117 passed through Kykuit, the estate of the Rockefeller family. Construction on a new expressway bypassing the estate to the north began in the late 1960s and was completed in November 1970, at which time NY 117 was realigned to follow the highway. Another highway bypassing Katonah was built in the early 1990s and opened c. 1992 as a realignment of NY 117.