This weekend, the CTA Blue Line rail service will be temporarily suspended from 10 p.m. Friday to 4 a.m. Monday from Washington to Western/Milwaukee stations, to allow for track work. This is one stop further than the usual Blue Line track work, which for the last several weekends (with the exceptions of the busy Taste weekend) had suspended service from Western to Clark/Lake.
The Monroe and Washington stations will be open, but the CTA is urging south/west bound passengers to take the shuttle bus to Jackson if they want to continue on the train. The CTA wants northbound passengers going to O'Hare to switch to shuttle buses at Jackson. Presumably there will be announcements on trains and buses making all of this clear.