The northbound express lanes will be closed at 71st Street by 10 o'clock.
Southbound express lanes will be closed at 75th Street.
At midnight, all but one lane will be closed on the northbound Dan Ryan at 75th St, and there will be two complete closures of the northbound Dan Ryan and northbound Chicago Skyway for up to 20 minutes between midnight and 7 a.m. Sunday.
