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Portage is located about 35 minutes from the state capital of Madison, 90 minutes from Milwaukee and about three hours from both Chicago and the Twin Cities. Transportation in Portage includes a cab service, a municipal airport, Amtrak, and an interstate and highway system.
Interstate Highways 90/94 and 39 lie just outside of town. Travelers from Milwaukee, Chicago, and beyond can use I-90/94 to get to the Twin Cities and further west. Take I-39 to reach industrial destinations on the upper Wisconsin River and vacation spots further north. U.S. Highways 51 and 16 pass through the city and intersect State Highway 33.