Jane Byrne Interchange

The Jane Byrne Interchange is a major freeway junction in downtown Chicago that connects the Dan Ryan, Kennedy, and Eisenhower Expressways with Ida B. Wells Drive. Originally built in the late 1950s and early 1960s, the interchange was known as the Circle Interchange until 2014. It was renamed for former mayor Jane M. Byrne, who served from 1979 to 1983. The interchange is defined by an asymmetrical turbine design that sets it apart from classic stack interchanges. Instead of tall bridges, the design relies on long, curving ramps that wrap around the crossing of the main routes. This low-profile layout gives the interchange its distinctive circular look. Since 2016, a three-level stacked structure has been added in the middle, altering the original geometry.

The site's history is closely tied to Chicago's traffic problems. With roughly 400,000 vehicles passing through each day, the interchange was at one time considered one of the worst traffic bottlenecks in the United States. The resulting congestion led to a comprehensive rebuilding program that began in 2013 and was completed in December 2022. The modernization included the construction of several new ramps, among them a new flyover from northbound Dan Ryan to westbound I-290, as well as the relocation of exits. The goal was to increase capacity and shorten travel times. The reconstruction cost more than $800 million and was meant to cut traffic delays in half.

For visitors and residents alike, the area around the interchange is defined by dense urban infrastructure. The tracks of the Chicago Transit Authority's Blue Line run directly beneath the center of the interchange, underscoring its structural complexity. To the southwest lies the campus of the University of Illinois Chicago, which was originally named after the Circle Interchange. The Jane Byrne Interchange remains a central point in the city's transportation network, and its design reflects both historic planning ideas and modern solutions for handling urban density.