Cofferdam keeps crew cruising through concrete placements - The current swing style bridge at Onslow Beach, Marine Corps Base Camp Lejeune rotates to allow a boat to conitnue it's way along the Intercoastal Waterway. The bridge was built in the 1950’s and was distressed during Hurricane Florence, accelerating the need for a replacement. Beach goers and Marines accessing training areas along the shoreline will be able to use the new bridge in Fall 2024. Crews working at the bridge replacement site have been working 23 ft below the water line while staying nice and dry with the help of a millennia old technology: the cofferdam.