Interstate 90 (I-90) is a transcontinental freeway, and the longest Interstate Highway in the United States at 3,020. 54 miles (4,861. 09 km). Its western terminus is in Seattle, at State Route 519 near Safeco Field and CenturyLink Field, and its eastern terminus is in Boston, at Route 1A near Logan International Airport. I-90 crosses the Continental Divide over Homestake Pass just east of Butte, Montana. East of the Wisconsin-Illinois border, much of I-90 follows several toll roads, many of which predate the Interstate Highway system. The Jane Addams Memorial Tollway, Chicago Skyway, Indiana Toll Road, Ohio Turnpike, New York State Thruway, Massachusetts Turnpike, and the Ted Williams Tunnel are all toll roads used by I-90 in the eastern half of the country. The Interstate is not tolled through some segments in downtown Chicago; Greater Cleveland, and the rest of Northeast Ohio; Pennsylvania; and through brief sections near Buffalo and Albany. Erie, Pennsylvania; Madison, Wisconsin; Billings, Montana; and Spokane, Washington are other major cities on I-90.
Interstate 90 ( I-90 ) in the U.S. state of Illinois runs roughly northwest-to-southeast through the northern part of the state. From the Wisconsin state line at South Beloit , it heads south to Rockford before heading east-southeast to the Indiana state line at Chicago . I-90 traverses 108 miles (174 km) through a variety of settings, from farmland west of the Fox River Valley through the medium-density suburbs west of O'Hare International Airport , through downtown Chicago, and through the heart of the industrial southeast side of Chicago before entering Indiana.
Landing at O'Hare Chicago in a few weeks and traveling to Duluth (MN) via a stopover in Madison (WI). We will be traveling on the I90 which I see is a toll. or part toll road. I have looked at the relevent website but find it slightly confusing. How much of this route is toll? Do you have to leave the road to pay tolls? Do you need a lot of coins or are the toll booths manned?