Niagara Thruway

Interstate 190
Niagara Thruway
Map of western New York with I-190 highlighted in red
Route information
Maintained by NYSTA, NYSDOT and the Niagara Falls Bridge Commission
Length:	28.34 mi (45.61 km)
Existed:	1959 – present
Major junctions
South end:	I-90 / New York Thruway in Cheektowaga
	QEW via Peace Bridge in Buffalo I-290 in Tonawanda
North end:	Highway 405 at the Canada–US border in Lewiston
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future New York Highways Interstate U.S. State Reference Parkways ← NY 189 NY 190 → ← NY 90 NY 91 →

Interstate 190 (I-190, locally known as The One-Ninety) is a north–south auxiliary Interstate Highway that connects I-90 in Buffalo, New York with the Canada-U.S. border near Niagara Falls. The freeway bisects downtown Buffalo before crossing Grand Island and travelling around the outskirts of Niagara Falls before crossing the Niagara River on the Queenston-Lewiston Bridge into Ontario. On the Canadian side of the border, the freeway continues as Highway 405, a short spur that connects 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.

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. I-190 is the only three-digit Interstate Highway to reach the Canada–US border, and one of only two to connect to an international border, the other being Interstate 110 in Texas.