Chicago N20 Bus Reroutes for Bridge Maintenance
Eastbound N20 Madison owl buses detour via Clinton, Monroe, Wacker during bridge work
CTA Reroutes N20 Madison Owl Bus for Bridge Work
Chicago's overnight N20 Madison bus service will take a detour through downtown streets while crews work on the Washington Street Bridge, transit officials said. Eastbound N20 buses will operate via Washington, Clinton, Monroe, and Wacker before resuming their normal route on Washington. Westbound buses won't be affected by the change.

Bridge Maintenance Prompts Service Change
The reroute is necessary due to scheduled maintenance work on the Washington Street Bridge over the Chicago River, according to the transit agency. Officials said the service change is part of planned maintenance activities to ensure the safety and reliability of the transit infrastructure. The CTA continues to work on maintaining and improving its transit infrastructure across the city. Bridge maintenance typically requires temporary service adjustments to ensure worker safety and allow equipment access to the structure.
Overnight Detour Details
The reroute is scheduled to take place overnight during the specified time period, officials said. Eastbound N20 Madison buses will travel via Washington, Clinton, Monroe, and Wacker before returning to their regular route on Washington. Westbound N20 buses will continue to operate on their normal route without changes. Officials didn't specify exactly how much additional travel time riders should expect, though passengers traveling eastbound should allow extra time for their journey.
Service Restoration Timeline
Normal service is expected to resume once the bridge maintenance work is completed, according to the CTA. Officials haven't announced a specific date for when the work will be finished or when buses will return to their regular route. Riders can contact CTA customer service for additional assistance or questions about the service change.
Planning Your Trip
Passengers traveling eastbound on the N20 Madison route overnight should plan accordingly and allow extra time for their journey, officials said. The detour adds several turns through downtown streets before buses return to Washington. Moovit provides real-time bus tracking and trip planning for CTA routes, including overnight owl service, helping riders navigate temporary service changes and plan their journeys with current route information.












