Blue Line service changes from July 29 thru 31

Work on the Blue Line, as part of the Your New Blue modernization program, may cause riders minor delays overnight starting July 29 through July 31. 

Boarding changes between Jefferson Park and Harlem (O'Hare Branch)

Nightly on Mon, July 29 thru Wed., July 31 from 10 p.m. to 4 a.m. next morning  

Trains in both direction will operate on the same track between Jefferson Park and Harlem.