
The State Street Bridge will soon undergo a major overhaul, prompting a full closure that will last through most of 2025.
According to the Chicago Department of Transportation, construction will begin on Monday, April 28, 2025. The bridge will subsequently close to all vehicular and pedestrian traffic through mid-November 2025.
Planned repairs include the replacement of floor beams and refurbishing of central lock mechanisms, as well as viaduct renovations.

CDOT has established several detour routes for vehicles and pedestrians during the construction period. The detours are as follows:
- Northbound vehicular traffic: From northbound State St, detour to westbound Wacker Dr, to northbound Dearborn St, to eastbound Kinzie St, back to northbound State St.
- Southbound vehicular traffic: From southbound State St, detour to westbound Kinzie St, to southbound Clark St, to eastbound Wacker Dr, back to southbound State St.
- Pedestrians can use Dearborn Street or Wabash Avenue as alternate routes.
- Bicyclists can use the existing protected bike lane on Dearborn Street.
Additionally, CDOT is finalizing several CTA reroutes which it will incorporate into the detour plan.
View a full map of the project and learn more information here.