Atlantic Boulevard Bridge

Jacksonville, Florida

Client: Florida Department of Transportation RS&H Role/Responsibility: Construction Engineering and Inspection Contractor/Construction Manager: Superior Construction Cost/Project Budget: $18 million Completion Date: Oct-01		Project Description: This project involved the building of a new bridge, rehabilitation of the existing bridge and a limited amount of new road construction. The new bridge is 2,710 feet long and consists of 29 spans. The superstructure is further broken down to five units (13 spans) of Florida Bulb Tee concrete beams for a total of 1,430 feet. Spanning both channels are two units (six spans) of steel girders for a total length of 1,280 feet. The main span is 280 feet long over each channel. The last unit (east side, eight spans) consists of flat slab for 245 feet. While the clearance of both bridges is 65 feet, the new bridge is four feet higher at its highest point. This is due to taller steel girders. The new bridge is also 605 feet longer, thus at any given point the new bridge is higher than the old bridge by more than four feet. This bridge is rather unique in that it uses two different pile methodologies (bearing and friction freeze), five different size footings and three types of superstructure (steel girder, concrete beam and flat slab construction). However, the most unique part of this project is the use of Vibro-Column as a soil stabilization method for the east approach.