Jane Byrne Interchange

The Jane Byrne Interchange (until 2014, Circle Interchange) is a major freeway interchange near downtown Chicago, Illinois, known locally as "The Lady in the Middle". It is the junction between the Dan Ryan, Kennedy and Eisenhower Expressways (I-90/I-94 and I-290), and Ida B. Wells Drive. In a dedication ceremony held on August 29, 2014, the interchange was renamed in honor of former Chicago mayor Jane M. Byrne (in office, 1979–1983).

First developed in the late 1950s and 1960s, over time the interchange in its original configuration became notorious for traffic jams. In 2004, it was rated as the country's third-worst traffic bottleneck, with approximately 400,000 vehicles using it per day. In a 2010 study of freight congestion (truck speed and travel time), the U.S. Department of Transportation ranked this section of I-290 as having the worst congestion in the United States. This led to an $800 million reconfiguration begun in 2013 and completed in December 2022.