The armored skeleton of a Confederate warship that spent 150 years at the bottom of the Savanah River in Georgia is being raised to the surface one 5-ton chunk at a time.

Navy divers began work midweek retrieving an estimated 250,000 pounds of armored siding from the wreckage of the CSS Georgia. Confederate troops scuttled the ironclad gunship in December 1864 to prevent its capture by Union troops taking Savannah.

Navy Chief Warrant Officer 3 Jason Potts says his crew began Wednesday breaking down three large sections of armored siding into 20 smaller chunks and raising them to the surface. The team has already recovered four cannons, the ship's propeller and other artifacts.

The CSS Georgia is being recovered as part of a $703 million deepening of the Savannah harbor.