A cofferdam is a watertight structure built to allow the enclosed area to be pumped out, creating a dry work environment.
The Battleship cofferdam will enable workers to repair and restore the ship’s corroded hull, which is paper-thin in places.
The Battleship’s last major dry docking and repair work was done in 1953.
The cofferdam will be constructed over 18 months by Orion Marine Group of Norfolk, VA.
The SECU Memorial Walkway
Under construction simultaneously, the SECU Memorial Walkway will be a half mile long, 10-foot wide timber walkway surrounding the Battleship.
The SECU Memorial Walkway will be above the water line but below the main deck of the Battleship.It will enable visitors to see the ship’s entire hull for the first time.
The SECU Memorial Walkway will include five bump-out areas to honor each of the five branches of the military--Army, Navy, Marine Corps, Air Force and Coast Guard. The Merchant Marines will be honoredby flying their flag on the quarterdeck.
The SECU Memorial Walkway will be open to the public and free of charge.
The Battleship NORTH CAROLINA will remain open to the public during construction.