Equinor South Riding Point Sea Island Berth 2 Repairs, Grand Bahamas

The Equinor South Riding Point Sea Island Oil Transshipment Terminal in the Grand Bahamas incurred major damage due to Hurricane Matthew in October 2016. The storm resulted in total failure and loss of major berthing dolphins and interconnecting bridges. Consequently, Equinor required detailed engineering design and construction of new berthing dolphins and access bridges to replace the failed structures. Like the original structures, the replacement dolphins consist of a cantilevered design, which is somewhat unique and unconventional considering the given water depth and size of design vessels. To improve upon the original design of the damaged structures, several design enhancements were implemented including the use of large diameter pipe piles socketed and grouted into pre-bored holes drilled into the seafloor bedrock, the addition of rubber cone fenders to better absorb vessel impact energy, and the use of a prefabricated steel jacket deck structure to reduce pile moments by inducing double curvature bending. The enhancements were proven effective in 2019 when the Sea Island marine structures survived Hurricane Dorian, a level 5 hurricane.