Snaking through the heart of downtown, Wacker Drive presented rebuilders with one of the most challenging transportation projects ever undertaken in Chicago.
Wacker abuts no fewer than 18 high-rises and a dozen parking facilities, requiring builders to orchestrate complex staging to keep 60,000 vehicles and 150,000 pedestrians moving while completely rebuilding a major section of the thoroughfare. Work on the adjacent Congress Parkway Interchange required similar consideration to accommodate 76,000 vehicles.