St. Clair County, Illinois – Lane closures on westbound I-55/70 Wednesday for bridge maintenance could slow traffic in St. Clair County.
According to the Illinois Department of Transportation (IDOT), lane closures will begin at 9 a.m. Wednesday, March 11, on westbound Interstate 55/70 between Illinois Route 203 and Exchange Avenue.
The work is part of scheduled bridge maintenance in the corridor. Officials say the closures will remain in place during the construction window as crews perform repairs and maintenance on the bridge structure.
IDOT expects all lanes to reopen by 6 a.m. Friday, March 13, if weather and work conditions allow the project to stay on schedule.
Drivers traveling through the area may encounter reduced lanes and slower traffic, particularly during peak commuting hours. Transportation officials advise motorists to allow extra travel time, slow down through the work zone, and watch for construction crews and equipment.
The I-55/70 corridor is a major route connecting St. Louis and communities across southern Illinois. Even temporary lane reductions can create congestion, especially during morning and evening commutes.
Motorists are encouraged to stay alert for posted signage and consider alternate routes if delays develop while crews complete the maintenance work.
Students, commuters, and early-morning workers traveling between St. Clair County and the St. Louis metro area may notice delays while the closures remain in place.
Additional information and updates about the project are available through the Illinois Department of Transportation.
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