Route information | |||||||
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Auxiliary route of I-35 | |||||||
Length | 2.78 mi[1][2] (4.47 km) | ||||||
Existed | 1971[3]–present | ||||||
NHS | Entire route | ||||||
Major junctions | |||||||
South end | 5th Street in Superior, WI | ||||||
North end | I-35 / US 53 in Duluth, MN | ||||||
Location | |||||||
Country | United States | ||||||
States | Wisconsin, Minnesota | ||||||
Counties | WI: Douglas MN: St. Louis | ||||||
Highway system | |||||||
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Interstate 535 (I-535) is a 2.78-mile-long (4.47 km) auxiliary Interstate Highway spur route of I-35 in the US states of Minnesota and Wisconsin. It is paired with U.S. Highway 53 (US 53) along its entire route. The Interstate was part of the original 1956 Interstate Highway System and was completed in 1971. Since then, weight limits have been added to the Blatnik Bridge that carries the highway over Saint Louis Bay between Superior, Wisconsin, and Duluth, Minnesota.