CHICAGO (STMW) – Overnight Blue Line riders should allow extra travel time this week as track construction is expected to cause minor delays.

Blue Line trains in both directions will operate on the same track between the Grand and LaSalle stations from 11 p.m. Tuesday until 4 a.m. Monday while crews perform track maintenance, according to the CTA’s website. The work will continue at the same times the next two days, ending early Friday.

As a result, passengers must board and exit all trains on the O’Hare-bound side of the platform at the Clark/Lake, Washington, Monroe and Jackson stations, the CTA said.

Minor delays are expected and the CTA is advising passengers to allow extra travel time.

Construction-related boarding changes at the same stations were previously announced for Sunday night into early Monday and Monday night into early Tuesday, but have since been canceled, according to the CTA. Blue Lines will operate normally between Grand and LaSalle until the maintenance work begins at 11 p.m. Tuesday.

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