New York State Route 20SY

New York State Route 20SY
Map of the Syracuse area with NY 20SY highlighted in red
Route information
Auxiliary route of US 20
Maintained by New York Department of Public Works
Length	38.13 mi[1] (61.36 km)
Existed	1951[2]–1961[3]
Major junctions
West end	US 20 / NY 321 in Skaneateles
Major intersections	US 11 in Syracuse
East end	US 20 / NY 20N / NY 92 in Cazenovia
Location
Country	United States
State	New York
Counties	Onondaga, Madison
Highway system
New York Highways Interstate US State Reference Parkways
← NY 20N → NY 21

New York State Route 20SY (NY 20SY) was a state highway in the vicinity of the city of Syracuse, New York, in the United States. It connected U.S. Route 20 (US 20) to downtown Syracuse via Skaneateles, Camillus, Manlius, and Cazenovia in Onondaga County and Madison County. The highway began at an intersection with US 20 and NY 321 in the village of Skaneateles and ended at a junction with US 20, NY 20N, and NY 92 near the village of Cazenovia. Most of NY 20SY overlapped another route; however, two sections of NY 20SY—one in the town of Camillus and another near the village of Fayetteville—were not concurrent with another highway.

NY 20SY was assigned in 1951, overlapping parts of the pre-existing NY 321, NY 5, NY 92, and NY 20N, a more southerly alternate route of US 20 in the Syracuse area. Both NY 20N and NY 20SY were removed in 1961. The two independent sections of NY 20SY near Camillus and Fayetteville eventually became part of NY 321 and NY 92, respectively.