As we all know, O’Hare is one of the busiest airports in the world. In 2019 we were topping the 900,000 flight operations. Due to this, building a new aircraft deicing facility has become a game changer for all operations, especially during winter. The new deicing facility has the foot print of 835,000 square feet (the size of 17 football fields); it is the largest of its kind in the nation. It can accommodate 20 narrow-body airplanes or five wide-body airplanes at the same time. In this project Cabo installed a Glycol Diversion System that collects and stores all deicing fluid used for recycling. Also, Cabo performed all site utility work which consisted of a new storm sewer system, new water main system, a sanitary lift station as well as new sanitary lines. All work was completed in 20 months.