The Milwaukee-Dearborn Subway is an underground section of the Blue Line ‘L’ and is located mainly in the Loop area in Chicago Illinois. It is 3.85 mi (6.20 km) long and connects the northwest (O’Hare) branch to the southwest (Forest Park) branch of the Blue Line. As of February 2013 the branch serves an average of 44584 passengers each weekday. Since the subway is operated by the Blue Line it serves passengers 24 hours a day/7 days a week and 365 days a year.
