Here, the two routes intersected NY 80 and US 11 and passed under Interstate 81 before exiting the city limits.

The turnpike was created in the 1800s and at the time was the longest in the state.

Local restaurants, hotels and gas stations, along with the Syracuse Chamber of Commerce all demanded a route bearing the "20" number on it.

[2] All four of the routes that NY 20N originally overlapped were assigned as part of the 1930 renumbering of state highways in New York.

[10] A second, more northerly alternate route of US 20 in the Syracuse area was assigned in 1951 and designated as NY 20SY.