The Harrison Red Line stop will undergo rehabilitation this spring.
The CTA will close part of the Orange Line for five weekends this spring as it makes structural improvements, the agency said Thursday.
Meanwhile, the agency said it will begin work Monday on rehabbing the Harrison Red Line stop on the Near South Side as part of a $92 million project that includes the Orange Line work and the construction of the new Green Line station on Cermak Road.
For the Orange Line work, the CTA will suspend rail service between the Roosevelt and Halsted stops for five weekends between mid-April and early June.
The first track closure is slated for 10 p.m. April 18 through 4 a.m. April 21. The CTA will provide free shuttle service during track closure.
The CTA will replace worn rail ties and paint and waterproof the Orange Line.
The $25 million project is being paid for with state transportation funds and tax increment financing, money intended to promote redevelopment in certain areas. The Orange Line saw 8.8 million station entries in 2013, up 1 percent from the previous year.
Meanwhile, the CTA will begin work at 4 a.m. Monday at the Harrison stop by closing the station's auxiliary entrance on Polk Street for 42 days. There will be full station closures on five weekends from May through early June.
The CTA will build two main entrance canopies, waterproof the mezzanine and platform areas, install new granite floors and new lights and repair the three stairways as part of the $10 million Harrison stop project.
Upon completion of the project, the Harrison station will be the first rail station fully equipped with LED lighting throughout. The work is being paid for with TIF funds.
The Harrison stop saw nearly 1.4 million riders last year, down nearly 2 percent from the previous year.