The crash happened on the outbound lanes at Dempster in the north suburbs.
Chopper 7 was over the scene showing a semi rolled over under the Dempster overpass. The cab detached.
Most lanes were blocked as crews worked to clear the scene. Only one lane was open for traffic.
Illinois State Police confirmed there were no injuries.
All lanes were cleared at about 8:40 a.m.
CHICAGO TRAFFIC See LIVE drive times