A few days ago we were heading west on I-90/I-94. Our GPS wanted to take us on the Skyway through Chicago which we thought a bad idea. So we opted for I-294 north. Not a great idea. BIG construction project. This was Sunday with relatively light traffic, but it seemed to take forever even with traffic moving. It would have been awful on a weekday. I'd definitely find another route, although the U.S. Government's funding for traffic projects to get the economy moving is evident everywhere in the country! Lots of bridges being rebuilt. Some construction zones have been 15 miles long. Also lots of "wide load" restrictions in those areas, usually 12 feet but saw one warning today of 11 feet width restriction on another road.
Also, the tolls in Illinois were pricey with the motorhome (3 axles) plus toad. Everytime we thought we were finished there was another tollbooth. We figure we've "given" the states of Florida, Pennsylvania, Ohio, Indiana, and Illinois somewhere in the neighborhood of $150 in tolls! Unfortunately those were the roads that went where we wanted to go and alternate routes would probably have cost as much or more in fuel, not to mention time when we just wanted to get from point A to point B. You can't win.... If we knew then what we know now, we might have purchased an EZ Pass or whatever they're called. It might have been a little easier. So, go prepared with a good supply of cash.