There have been lots of posts in this thread about the poor condition of I-55, especially in Will County, followed by "IDiOT" comments blaming them for their inaction. The following comment/question isn't about I-55 but I think it's still valid.
Driving down I-57 from Chicago today, it was easy to see that some sections of the pavement are in good condition while others are in disrepair. The border between these sections was always at a county line - Ford, Champaign, and Kankakee counties are in pretty good shape, while Will and Iroquois are in some real need of work. In Cook County, it's crappy from I-94 to I-80, but good from I-80 to the county line. Is the pavement maintenance for interstates left to counties in Illinois, or at least this part of Illinois? Or is it just convenient for IDOT to start and end their pavement sections at county lines? If it's the former, maybe IDOT doesn't deserve the blame for deteriorating pavement. Someone familiar with what goes on in this region, please advise.