OWNER:
Florida Department of Transportation
605 Suwannee Street
Tallahassee, Florida 32399-0450

GRADING CONTRACTOR:
Gulf Atlantic Constructors, Inc.
650 W. Oakfield Road
Pensacola, FL 32503

SEGMENTAL WALL DESIGN/BUILD COMPANY:
Synergy Earth Systems, LLC.
26240 Equity Drive
Daphne, AL 36526

A section of SR 30 in Pensacola crossed over Bayou Chico and it was decided that the old bridge needed to be replaced with a new bridge that was higher than the existing one. The plans called for half of SR 30 to remain open while half of the bridge was demolished and rebuilt. Since the new bridge was higher than the existing one, the roadway approaches to the bridge would also need to be raised, which required an MSE temporary wall along the edge of the new roadway that faced the old roadway. Once half of the roadway and bridge had been replaced, the traffic would be switched to this side and the other half of the roadway and bridge would be reconstructed to the new grades. FDOT uses a lot of MSE temporary walls for applications like this because it is much cheaper than using other methods such as temporary sheet piling.

Gulf Atlantic Constructors (GAC) was selected by Scott Bridge (General Contractor) to perform the roadwork portion of the project, including the MSE temporary walls. GAC selected Synergy to provide the design and construction for the MSE temporary walls on this project based on their experience with these type of structures and experience working on DOT projects in the surrounding states. Synergy successfully provided the design and construction services required for the project in a professional and timely manner. The final wall drawings called for about 30,000 sf of MSE temporary wall. The walls were completed in the Spring of 2009.