I have been on the Illinois Highway Department websites, and have checked the 200k, 300k, and 400k routes. As of right now, Thursday morning, it appears the 200k and 300k routes are okay.
The 400k has flooding south of Pinckneyville to Ava. Two of the three roads down there are under water and closed. The third alternative is not listed, but I will be calling the highway department today for verify.
There may, probably will be route changes on the 400k. If we can not get into Ava, I may turn the 400k into an out and back to Pinckneyville. I will look for options and let you know.