Interstate 190 (New York)

Interstate 190
Niagara Thruway
I-190 highlighted in red
Route information
Auxiliary route of I-90
Maintained by NYSTA, NYSDOT and the Niagara Falls Bridge Commission
Length	28.34 mi[1] (45.61 km)
Existed	1959[2]–present
Tourist routes	Lake Erie Circle Tour
NHS	Entire route
Major junctions
South end	I-90 / New York Thruway in Cheektowaga
Major intersections	NY 5 in Buffalo Queen Elizabeth Way via Peace Bridge in Buffalo NY 198 near Black Rock I-290 in Tonawanda NY 324 in Grand Island NY 384 / LaSalle Expressway / Niagara Scenic Parkway in Niagara Falls US 62 in Niagara Falls NY 31 in Niagara Falls NY 104 / Niagara Scenic Parkway in Lewiston
North end	Highway 405 at the Canada–US border in Lewiston
Location
Country	United States
State	New York
Counties	Erie, Niagara
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future New York Highways Interstate US State Reference Parkways
← NY 189 → NY 190
← NY 90 → NY 91

Interstate 190 (I-190, locally known as One-Ninety) is a north–south auxiliary Interstate Highway in the United States that connects I-90 in Buffalo, New York, with the Canada–United States border at Lewiston, New York, near Niagara Falls. Officially, I-190 from I-90 north to New York State Route 384 (NY 384) is named the Niagara Thruway and is part of the New York State Thruway system. The remainder, from NY 384 to Lewiston, is known as the Niagara Expressway and is maintained by the New York State Department of Transportation (NYSDOT).

The freeway bisects downtown Buffalo before crossing Grand Island and travelling around the outskirts of Niagara Falls before crossing the Niagara River on the Lewiston–Queenston Bridge into the Canadian province of Ontario. In Canada, the freeway continues as Ontario Highway 405, a short spur connecting with the Queen Elizabeth Way (QEW), which in turn provides a freeway connection to Toronto, Canada's largest city. The 28.34-mile-long (45.61 km) route also provides access to the QEW at the Peace Bridge between Buffalo and Fort Erie, Ontario. I-190 is currently the only three-digit interstate to connect directly with Canada, and one of only two to connect to an international border, the other being I-110 in Texas, which connects to Mexico.

Parts of the highway were built along the former right-of-ways of the Lehigh Valley Railroad and the Erie Canal. The entire route was built as part of the New York State Thruway in the late 1950s and early 1960s and was completed in 1964. The cost of I-190's construction had been paid off by 1996, and, by law, the tolls along the freeway were supposed to be removed at that point; however, this did not occur until 2006. The Grand Island tollbooths remained in place for 12 more years but were taken down in 2018 and replaced with high-speed electronic toll gantries.