CHICAGO - Track work will suspend service on the CTA's Brown, Green, Orange, and Pink lines this weekend.

What we know:

Crews will be replacing track switching equipment at the Tower 18 junction, located at Lake and Wells Street. Service on the Brown, Green, Orange and Pink lines in the Loop will be closed during construction from 4 a.m. Saturday through 2 a.m. on Monday. Services on these lines outside the Loop will continue to operate as normal.

Elevated stations will be closed, including Clark/Lake, State/Lake, Washington/Wabash, Adams/Wabash, H.W. Library, LaSalle/Van Buren, Quincy and Washington/Wells stations.

Services along the Red and Blue lines will not be affected.

CTA will operate two shuttle buses to accommodate affected riders. CTA recommends riders plan ahead and allow

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