CHICAGO (WLS) -- The CTA is launching a new project this weekend that will affect riders on the Blue Line's O'Hare Branch.
Crews are going to be replacing the original Belmont Crossover that was built 50 years ago.
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Service will be disrupted between the Addison and Western stations from 10 p.m. Friday until 4 a.m. Monday.
Trains will run between O'Hare and Addison; and between Western (), downtown, and Forest Park, with shuttle buses running between Addison and Western.
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Work will continue up to eight other weekends through May.