The dedication ceremony was held in the Rosemont Theater and featured a ISP patrol car parked outside the ceremony draped in a purple ribbon.
"This memorial highway dedication will ensure everyone remembers and no one ever forgets the sacrifice Chris and his loved ones made On January 12, 2019," said Brendan Kelly, Director of Illinois State Police. "He deserves much more and nothing less than that."
Officials dedicated the section of I-294 between mile marker 49.25 and 50 in Cook County as the "ISP Trooper Lambert Highway".
Illinois State Police, elected officials, friends, colleagues and family members were in attendance.
"We have to not just recognized the life that Chris lived but also focus on what we can do to do better and honor his work, honor what he stood for to make sure it doesn't happen again," said Illinois State Rep. Bob Morgan.
RELATED: Illinois State Police mourn trooper fatally struck on I-294 in Northbrook
34-year-old Lambert worked at ISP's District 15 and was headed home to Highland Park when he stopped at the scene of a three-vehicle crash in the northbound lanes at milepost 49.25, near Willow Road.
Lambert was a U.S. Army Veteran and served with the ISP for five years.
Lambert is survived by his wife and two daughters. Lambert's first daughter was one-year-old at the time of his death. Lambert's wife was pregnant with their second child at the time of his death and gave birth earlier this year.
WATCH: Full "ISP Trooper Lambert Highway" dedication ceremony
State police called his death is a tremendous loss that should have never happened.