The Illinois Department of Transportation (IDOT) continues to plan for an upgraded interchange at Routes 41 and 176 in Lake Bluff, though its transformation still appears years away.
Earlier this month, IDOT released its FY 2026–2031 Proposed Highway and Multimodal Improvement Program, again listing reconstruction of the Lake Bluff interchange among its planned initiatives.
“The timeline is still the same, and that is nothing different or shocking,” Lake Bluff Village Administrator Drew Irvin said.
Irvin noted the village has sought the interchange’s reconstruction for decades.
“We have an intersection that is tired,” he said. “It is not the safest design. We have been very fortunate that there have not been any fatalities.”
He added that the area also represents an economic opportunity for the village, which has lobbied IDOT extensively to move the project forward.
Now with an estimated cost of about $93 million, IDOT says the proposed project will add auxiliary, through, and turn lanes at Route 176 intersections with Waukegan Road, Shagbark Road, and Skokie Valley Road.
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Other improvements include elevation changes at U.S. 41 and West Washington Avenue, new traffic signals, sidewalks and upgraded drainage systems. The bridge over Routes 41 and 176 will also be replaced. In addition, the North Shore and Lake Forest bicycle paths will be relocated, and a new multi-use path will be built along the west side of Waukegan Road from north of Route 176 to West Woodland Road.
Before that work can begin, preliminary projects are required. Earlier this year, a stormwater mitigation effort began that includes replacing pumps, constructing a new pump station building, and installing new pipes to direct stormwater to the Skokie River.
Irvin expects that project to be completed in 2027.
IDOT says the interchange plan remains in the design and land acquisition phases. Among the properties it will need to acquire is the Rockland Fire Protection District building at 14 N. Skokie Highway, formerly home to the Knollwood Fire Department.
RFPD President Marcin Malinowski said in a text message that his agency has not been in contact with IDOT for at least a year.
IDOT spokesperson Guy Tridgell said that’s not unusual.
“Land acquisition is a legal process that often involves several steps and can take months to complete,” he said. “While we cannot comment specifically about this case, it’s not unusual for there to be gaps in communication between the parties involved.”
Irvin noted other major road projects are also underway in the village, including the recent Sheridan Road resurfacing and the upcoming reconstruction of Green Bay Road and Bridge, scheduled for 2026 and 2027.
“We are trying to make sure there is not a lot of overlap with this,” he said.
Irvin anticipates the interchange reconstruction will begin around 2030 and take about three years to complete.
“We have been continuing to nudge IDOT along to complete the improvement, and now we’re all trying to make it happen in a way that’s reasonable,” he said.
Daniel I. Dorfman is a freelance reporter for Pioneer Press.