PCL provided the Florida Department of Transportation with upgrades to the intersection of Bruce B. Downs Boulevard and Interstate 75 in Tampa, Florida. The PCL project team replaced the existing signalized intersection with a flyover bridge to allow unimpeded access for motorists traveling from westbound Bruce B. Downs Boulevard to southbound Interstate 75. The primary feature on the project is the 1,750-foot flyover bridge, which consists of two side-by-side deep steel tub girders that are each 13 feet by 10 feet. The typical span length of this seven-span bridge is 220 feet, with the longest span of 325 feet stretching across Bruce B. Downs Boulevard.
The client’s goal was to shorten the construction schedule to minimize impacts to the traveling public. With this in mind during all phases of construction, PCL completed the one-year, nine-month project nearly three months ahead of schedule. One innovation included the construction and use of various types of temporary storm water runoff treatment systems. The soil type found within the project limits contained a high level of fine particles and, as a result, standard erosion-control systems were rendered non-functional. PCL developed numerous methods for treating the storm water runoff that successfully removed the fine soil particles prior to release into existing waterways. Some of these methods are in use today by other contractors working with this client in the same area.