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[FDOT News Release Palm Beach/West Palm Beach] -– Construction begins April 3 on a $93 million project to replace the Southern Boulevard Bridges over the Intracoastal Waterway and Lake Worth Lagoon, the Florida Department of Transportation (FDOT) said.

The overall project limits are from Washington Road in West Palm Beach to just west of the A1A traffic circle in Palm Beach and on Flagler Drive for 400 feet north and south of the Southern Boulevard intersection.  

The project includes replacing the existing bascule bridge and the low level tide relief bridge on the causeway connecting the Town of Palm Beach and the City of West Palm Beach.  In order to maintain two lanes of traffic over the Intracoastal Waterway, a temporary bridge will be built north of the existing bridge before construction on the new bascule bridge begins.

The project also includes removing old asphalt and repaving the travel lanes leading to and between the bridges, installing decorative lighting, pedestrian features, bike lanes, upgrading traffic signals, new drainage and repaving the public parking areas on the causeway. The intersection of Flagler Drive will be raised approximately three feet in order to connect to the higher new Intracoastal bridge.

Southern Blvd Bridge AerialThe first work activity will be construction of the temporary bridge. The temporary bridge will be a pre-fabricated vertical lift steel bridge at the navigation channel. The temporary bridge approaches will be made of a precast concrete deck supported on steel beams and pilings. Construction of the temporary bridge is expected to be completed late 2017.

southern aerial  Traffic will be shifted onto the temporary bridge before the old Intracoastal bridge is demolished and the new bridge is built on that alignment. Traffic will be moved onto the new bridge when completed and the temporary bridge and approaches will be removed.

Recreational use of the causeway will remain open to the public during construction with a reduction in the space available. Current public parking will be relocated as the construction progresses. For safety reasons, the public will be prohibited from using any construction zones for recreational use. Construction zones will be identified by signs, barricades and/or fencing.

Johnson Brothers Corporation is FDOT construction contractor. The entire project is expected to be completed by late 2020.

For more information on the project, go to www.SR80bridge.com