Chicago CTA Route 12 Detour — Riders Adapt

CTA Route 12 detour affects Near West Side and lakefront service with no end date set

CTA Route 12 Rerouted in Chicago

Chicago's CTA Route 12 is running on a temporary detour that's affecting riders' daily commutes, transit officials said. The reroute took effect recently and remains in place, though officials haven't announced when normal service will resume. Passengers who rely on the route should expect changes to their usual travel patterns and allow extra time.

Background

The Chicago Transit Authority classified the Route 12 reroute as high-severity, indicating significant changes to the route's normal path. Transit agencies typically implement temporary reroutes due to construction, special events, or infrastructure work, though officials didn't specify the reason for this particular detour. The agency announced the change January 24, though specific details about which streets or stops are affected weren't available by publication time. Route 12 typically serves Chicago's Near West Side and lakefront areas.

Service Details

Officials confirmed the reroute affects the entire Route 12 line but didn't provide specifics about alternate streets or modified stop locations. Passengers can expect changes to pickup and dropoff points along the route, though the agency hasn't said how many stops are affected or whether service frequency will change. Transit officials said riders should check for updates regularly as the situation develops. The agency typically posts detour information at affected stops and on buses.

Timeline

The Route 12 detour is temporary, according to CTA officials, but a specific end date wasn't provided. The agency published the high-severity alert January 24, 2026, indicating the reroute was either already in effect or beginning shortly after. Officials haven't said how long the detour will remain in place or what factors will determine when normal service resumes.

Rider Impact

Passengers who regularly use Route 12 should plan for longer travel times and different boarding locations during the detour period. Officials recommend allowing extra time for trips and checking for service updates before traveling. Moovit provides real-time updates for CTA routes, including detour information and alternate travel options. Riders can also check with CTA customer service or station personnel for specific guidance on how the reroute affects their usual stops.