Chicago-area residents and visitors will have to find alternative modes of transportation in the Loop, as trains on four different CTA lines will not be operating in the downtown area.
Elevated rail service on the Brown, Green, and Orange lines will be suspended through the Loop beginning on Saturday morning, and Pink Line passengers will also be impacted, according to the agency.
According to CTA, train service is being suspended due to track maintenance taking place around the Tower 18 rail junction, located at the intersection of Lake and Wells.
Five different CTA train lines operate through the junction in the Loop, with dozens of trains making their way through the area every day.
Train service on the Red and Blue lines, which use subway tunnels in the Loop, will be unaffected.
Here is a full rundown of the impacted lines.
Brown Line:
Service to Clark/Lake, State/Lake, Washington/Wabash, Adams Wabash, Harold Washington Library, LaSalle/Van Buren, and Quincy and Washington/Wells are suspended from 4 a.m. Saturday to 2 a.m. Monday.
Brown Line trains will only run between Kimball and Merchandise Mart, with the Red Line serving as an alternative into the Loop.
Green Line:
Service to Clark/Lake, State/Lake, Washington/Wabash, Adams/Wabash, Harold Washington Library, LaSalle/Van Buren, and Quincy and Washington/Wells will be suspended from 4 a.m. Saturday to 2 a.m. Monday.
Green Line trains will run between Harlem and Clinton, and Roosevelt and 63rd Street only.
Orange Line:
Service to Clark/Lake, State/Lake, Washington/Wabash, Adams/Wabash, Harold Washington Library, LaSalle/Van Buren, and Quincy and Washington/Wells will be suspended from 4 a.m. Saturday to 2 a.m. Monday.
Orange Line trains will only run between Midway and Roosevelt.
Pink Line:
Pink Line trains will be rerouted after Polk Station to the Racine Blue Line station. Passengers can transfer to Blue Line trains for continuing service into the Loop.
Pink Line service to Ashland, Morgan and Clinton will not be available, with passengers urged to seek alternative transportation on buses.
Shuttle Buses:
According to the CTA, Green and Orange Line shuttle buses will operate between Roosevelt and Clinton, making stops along State, Washington, and Madison.
Those buses will connect with continuing Green Line service at Clinton.
Brown Line shuttle buses will operate between Merchandise Mart and the Harold Washington Library, making stops near Loop stations.