V3 was the lead design firm for a key segment of the Illinois Tollway’s $4 billion improvement of the Central Tri-State Tollway (I-294), an ambitious project aimed at improving infrastructure and traffic flow.  Our Phase II design engineering services were performed for the widening and rehabilitation of nearly two miles of I-294, from Wolf Road to the O’Hare Oasis.  This included an expansive list of improvements such as the addition of a fifth travel lane in each direction, reconstruction of the median to accommodate flex lanes, the rehabilitation of the dual (over one-half mile long) bridges over the Bensenville Rail Yard, and the implementation of SmartRoad technology. In addition, a detailed traffic staging plan was developed to maintain four lanes of traffic in each direction throughout the three-year construction duration.