Routes 303, 310, 317 and 318 Detour Alert

Effective Saturday, March 7, 2026, ONLY

Due to an event in Forest Park, Madison Street will be closed between Van Buren Street and Harlem Avenue. As a result, Routes 303, 310, 317, and 318 will operate on the following detour during trips that operate between the hours of 10:00am through 4:00pm on Saturday, March 7, 2026:

Route 303 Northbound, Routes 310 and 317 Westbound Detour

CTA Blue Line Forest Park Transit Center → Des Plaines Avenue → I-290 → First Avenue → Madison Street→ Resume regular routing

Route 303 Southbound, Routes 310 and 317 Eastbound Detour

Madison Street → First Avenue → I-290 → Des Plaines Avenue → CTA Blue Line Forest Park Transit Center

Route 318 Eastbound Detour

Harlem Avenue → Jackson Boulevard → Des Plaines Avenue → Resume regular routing

Route 318 Westbound Detour

Des Plaines Avenue → Jackson Boulevard → Harlem Avenue → Resume regular routing