Thanks to a nudge from Cal Skinner, I'll tell you how to do it.
Go to the Illinois Tollway website by clicking right here and then scroll down a little to the box for "Capital Plan Comments". Put in your 2¢ worth and send it to them. But hurry; the decision will be made tomorrow morning at the 10:00AM board meeting.
Read Cal Skinner's articles on McHenry County Blog.