 New York State Route 173 | ||||
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 Map of the Syracuse area with NY 173 highlighted in red | ||||
| Route information | ||||
| Maintained by NYSDOT, Onondaga County, and the city of Syracuse | ||||
| Length | 30.59 mi[1] (49.23 km) | |||
| Existed | 1930[2]–present | |||
| Major junctions | ||||
| West end |  NY 31 in Van Buren | |||
| East end |  NY 5 in Chittenango | |||
| Location | ||||
| Country | United States | |||
| State | New York | |||
| Counties | Onondaga, Madison | |||
| Highway system | ||||
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New York State Route 173 (NY 173) is a state highway located in the Syracuse area of central New York in the United States. It takes a slightly bow-shaped route from NY 31 in the town of Van Buren to NY 5 in Chittenango, gently curving to the south of Downtown Syracuse in the center of its 30.59-mile (49.23 km) routing. Even so, NY 173 briefly enters the Syracuse city limits near where it intersects U.S. Route 11 (US 11). NY 173 passes through several suburbs of Syracuse, including Camillus, where it first meets NY 5, and Manlius, where it has a short overlap with NY 92.
NY 173 was assigned as part of the 1930 renumbering of state highways in New York to its modern alignment. The route itself has not been altered since; however, the portion of the route from Onondaga to Manlius became part of NY 20N c. 1938 and a small section of the route within Manlius was included in NY 20SY when that highway was assigned in the early 1950s. Both designations were removed in 1961. All of NY 173 east of Onondaga was originally part of the Seneca Turnpike.