Route 331 Detour Alert
Effective Monday, November 16, 2026
Due to the closure of 1st Avenue (Illinois 171) north of Cermak Road (22nd Street) in North Riverside, Route 331 will operate on the following detour until the work is completed:
Route 331 Northbound Detour:
1st Avenue → Cermak Road → Des Plaines Avenue → Roosevelt Road → 1st Avenue → 17th Street → regular route
Route 331 Southbound Detour:
1st Avenue → Roosevelt Road → Des Plaines Avenue → Cermak Road → 1st Avenue → regular route
During this detour, buses will not operate on 1st Avenue between 17th Street and Cermak Road.
Please allow extra travel time during the detour.
Buses will return to normal service in this area on Sunday, November 22, 2026.