The U.S. 60/62 bridge over the Mississippi River at Cairo, Ill., will reopen March 6 after being closed since January 2011.
Big rig speeds on various four-lane roads will rise to 65 mph from 55 mph on roads outside of Chicago, matching the passenger car speed limit.
The new law also provides a program to educate truck drivers about the differences between truck and car GPS devices.
The closure is anticipated to be in place three days.
Construction work is scheduled to begin April 11 on U.S. 36 between State Route 49 and State Route 130.
The 1920s’ era bridge was restricted to a 15-ton limit but too many violators forced the state to decide to close the structure for repairs.
The section in East St. Louis will be closed for a bridge demolition.
Emergency waiver is in response to the severe and extended cold weather in the state.
Sign up to get Overdrive's daily newsletter.