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4 hours ago · The Niagara Thruway comprises the first 21.24 miles (34.18 km) of I-190 from I-90 in Buffalo to NY 384 in Niagara Falls. History Origins and construction. A toll superhighway connecting the major cities of the state of New York that would become part of a larger nationwide highway network was proposed as early as 1949.
- June 24, 1954–present
- 496.00 mi (798.23 km)Mainline only
