I-535 begins in the city of
Superior, Wisconsin, at the junction of US 53 and
State Trunk Highway 35 (WIS 35) and continues northwest across the
Blatnik Bridge over the
Saint Louis Bay of
Lake Superior. The freeway crosses from Wisconsin into Minnesota on the bridge and then meets an interchange for Garfield Avenue and the Port Terminal in the city of
Duluth. I-535 ends at the junction of US 53 and I-35, known locally as the "
Can of Worms" interchange, which features a pair of left exits from I-35, a stoplight, and lane drops over the I-35 bridge. In 2007, the
Wisconsin Department of Transportation (WisDOT) surveys measured a traffic along their segment of I-535 at 21,800–29,500 vehicles daily,
on average. The
Minnesota Department of Transportation (MnDOT) measured 29,500 vehicles daily in their 2009 survey. As an Interstate Highway, I-535 is a part of the
National Highway System, a network of roads important to the country's economy, defense, and mobility. I-535 is part of the
Falls-to-Falls Corridor, a federally recognized trade corridor spanning from
Eau Claire–
Chippewa Falls, Wisconsin, to
International Falls, Minnesota–
Fort Frances, Ontario. ==History==