After more than a year of major congestion, lane closures and traffic bottlenecks in and out of downtown Chicago from the Kennedy Expressway, two major connecting ramps from the Kennedy to River North are finally set to reopen.

Lanes on the Ohio and Ontario Street feeder bridges, which bring Kennedy drivers into the city at Ohio and out of the city at Ontario, started reopening with three lanes each Thursday morning, according to the Illinois Department of Transportation. That’s up from the narrow two that has caused major traffic headaches since Nov. 2024.

As of 5:30 a.m. Thursday, IDOT was still working to finish its final overnight “punch list” for the Ohio Street bridge going east, NBC 5 traffic reporter Kye Martin said. By 6 a.m., things were clear, with new pavement markings set and traffic barricades removed.

“Haven’t been able to say that since November 2024,” Martin said.

Thursday night, Ontario street will be closed from Orleans to the Kennedy Expressway in order to finish final work westbound. By 5 a.m. Friday, the Ontario Street feeder to the outbound Kennedy was expected to fully reopen, IDOT said.

The end of the construction means drivers on Thursday will have three lanes eastbound on Ohio open from the Kennedy to Orleans. Friday morning, three lanes open westbound on Ontario between Orleans and the Kennedy.

“This will ease the bottleneck that was caused by having only 2 lanes and off-peak closures during the duration of this effort,” Martin said.

“The public can expect delays and should allow extra time for trips through this area,” IDOT said, as the closures come to an end and reopening begins. “Alternate routes are encouraged. Drivers are urged to pay close attention to flaggers and signs in the work zones, obey the posted speed limits and be on the alert for workers and equipment.”

The $15.4 million project “replaced bridge expansion joints, structural steel and deck repairs along with the installation of a new deck overlay and resurfacing on the elevated bridges,” IDOT said. It was a separate project from the three-year rehabilitation of the Kennedy Expressway that concluded last fall.

As the highly anticipated reopening comes, more work on the bridges is still needed, IDOT said, with concrete paving patching to repair both ramps to each bridge set to occur later this summer. That work will require a “full closure” over three weekends, alternating between Ohio and Ontario streets between the Kennedy and Orleans.