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 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 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. Route description West of Syracuse NY 173 begins at an intersection with NY 31 in Ionia, a hamlet within the town of Van Buren. The route heads southeast, intersecting several county roads as it proceeds through a rural, marshy area of Onondaga County as Warners Road. It crosses over the New York State Thruway (Interstate 90 or I-90) on its way into the hamlet of Warners, where it briefly follows Canton Street and crosses the CSX Transportation-owned Rochester Subdivision rail line before becoming Warners Road once again as it follows the railroad east out of the community and into the town of Camillus. The route parallels the track for roughly , over which time it passes to the north of Greenlawn Memorial Park. As the trackage and the highway approach a point known as Amboy Station, NY 173 curves away from the railroad and heads southeast toward Amboy. After making the turn, NY 173 meets Pottery Road (County Route 164 or CR 164), a local road leading to Camillus Airport, a simple one-runway facility located adjacent to the railroad line. NY 173 continues into and through Amboy, passing a large area of tailings that was once the site of the Syracuse Municipal Airport. The brownfields are bordered to the north