Speeding in a construction zone is a Petty Offense. This offense is eligible for Court Supervision. However, a Court appearance is mandatory. (625 ILCS 5/11-605.1)
The fines for speeding in a construction or maintenance work zone are a minimum of $375 + court costs for the first offense and a minimum of $1000 + court costs for the second offense.
If the second offense is within two years of the first offense, the Secretary of State shall suspend the driver's license for a period of 90 day.
One very common misconception is that lower speed limit is not applicable if workers are not present. Workers DO NOT have to be present to receive a speeding ticket in a work zone.