Interstate 190 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).