Vision Becoming Jane Byrne Reality SPRING 2019 Formerly known as Circle Interchange
PROJECT BACKGROUND
The Jane Byrne Interchange, previously called Circle Interchange, was constructed Construction: WHERE WE ARE NOW starting in the 1950’s. It is located in the CONSTRUCTION CONSTRUCTION CONSTRUCTION Construction began in late 2013 heart of downtown Chicago, in an active STAGE STAGE STAGE and was broken into 35 separate urban environment. The Interchange links 1 2 3 contracts or project components the Dan Ryan Expressway (I-90/94) to the with the idea that it would be Cross Road Bridges I-290/Ida B. Wells Drive I-90/94 south, Kennedy Expressway (I-90/94) to (Congress Parkway) completed in 3 stages. the north, Eisenhower Expressway (I-290) to the west, and Ida B. Wells Drive (formerly WE ARE HERE known as Congress Parkway) to the east. Because of the interchange’s high traffic volume, aging infrastructure, and lively urban setting, reconstruction has been no easy task. Keep in mind these challenges:
REBUILD IN THE SAME MAINTAIN 400,000 ONE EXPRESSWAY AT A TIME Over 400,000 vehicles travel through the FOOTPRINT VEHICLES/DAY This is not the only ongoing interchange daily and it is one of the worst The larger improved interchange The overall interchange project construction project in the city. needs to fit in the same area as area maintains 400,000 vehi- To minimize traffic impacts bottlenecks in the country for traffic the existing constrained inter- cles daily. Closing completely to from having more than one congestion. The interchange experiences change. Several site constraints speed up construction would be downtown expressway under present unique challenges that detrimental to a key node of the construction at the same time, breakdown conditions for many hours must be taken into consider- area’s transportation network. work had to be staggered of the day, causing substantial backups ation including the CTA Blue Construction must work around around the full reconstruction Line, Cermak pump station, existing traffic to cause the least of the interchange between I-55 in every direction. underground water tunnels, and amount of disruption possible and Lake Shore Drive. poor soil conditions. and minimize lane closures.
The Chicago Metropolitan Agency for UNFORESEEN CONDITIONS WORK RESTRICTIONS UNIQUE CHALLENGES Challenges with unknown Contract requirements limit how The city maintains an active wa- Planning (CMAP) estimates that conditions below ground have often a contractor is allowed ter pumping station on Harrison approximately 67 percent of annual affected the reconstruction. An to close lanes or ramps. Major Street between the southbound abandoned brick water tunnel construction does take place at and northbound I-90/94 regional freight tonnage occurs on that previously served an ele- night, however, noise must be lanes. Abandoned water supply roadways. Of this total, 36 percent is vated rail line has been encoun- considered. Some limitations tunnels have been filled to ac- tered in numerous construction include many weekends to commodate bridge construction traffic passing through the area. CMAP projects. The remnants of long avoid impacts during holidays, and the existing water supply states that “the biggest challenge to forgotten Chicago continue to sporting events, festivals and pipes have required relocation be found within this project. other major events in the city. and rehabilitation. trucking is highway congestion”. The Illinois Department of Transportation has taken a unique approach to reconstructing this Interchange. During Stage 1 of construction, cross road bridges along the west and south were removed and rebuilt while design continued for the next stage. This pattern has remained; as work continues in Stage 2, design for Stage 3 progresses.
www.CircleInterchange.org | PAGE 1 94 ADAMS STREET ADAMS STREET
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