CTA Reroutes 3 Routes for Bridge Maintenance

Three CTA bus routes detour overnight April 20-21 for Roosevelt Bridge maintenance

2026-04-23, Moovit News Team

CTA Reroutes 3 Bus Routes for Bridge Work

Three Chicago bus routes will detour around the Roosevelt Bridge overnight Monday into Tuesday morning for maintenance work, the Chicago Transit Authority said. Routes #12 Roosevelt, #18 16th/18th, and #N62 Archer will follow alternate paths from 11:59 PM April 20 through 5:00 AM April 21. The reroute affects buses crossing the Chicago River during the overnight maintenance window.
CTA bus on Roosevelt Road near the Chicago River with Roosevelt Bridge visible in background

Bridge Maintenance Requires Temporary Detours

The service change accommodates scheduled maintenance on the Roosevelt Bridge over the Chicago River, transit officials said. Bridge maintenance typically requires temporary closures to ensure worker safety and allow equipment access. The CTA schedules such work during overnight hours to minimize rider impact, though some delays are expected. Officials advised passengers to allow extra travel time during the maintenance period.

Eastbound and Westbound Routes Differ

Eastbound buses on the three routes will detour via Roosevelt, Canal, Jackson, and Clark before resuming normal service on Roosevelt, according to the transit agency. Westbound buses will follow a different path via Roosevelt, Clark, Harrison, Dearborn, Van Buren, and Canal before returning to their regular route. The detours add several blocks to the normal path across the bridge. Officials said the alternate routes will keep buses moving while the bridge remains closed to traffic.
Chicago Transit Authority bus at downtown intersection showing route number display and street signs

Overnight Work Limits Disruption

The maintenance work begins at 11:59 PM Monday, April 20 and continues through 5:00 AM Tuesday, April 21, the CTA confirmed. The overnight timing affects primarily late-night riders and early-morning commuters. Route #N62 operates as an owl service providing overnight transit connections. Officials said buses will return to normal routes once the maintenance window closes Tuesday morning.

Riders Should Plan for Delays

Passengers using the affected routes should expect longer travel times during the overnight maintenance period, transit officials said. The detours add extra stops and turns to the normal route pattern. Riders can check Moovit for real-time bus locations and updated arrival times during the reroute. Officials said the bridge maintenance is necessary to maintain safe operations for vehicles crossing the Chicago River.