Laid down in early 1905 at Maryland Steel Co. of Sparrows Point, Maryland, Dewey was floated for the first time on 10 June 1905. She was christened on that date with the traditional bottle of wine by Miss Endicott, the daughter of U.S. Navy Chief of Yards Mordecai T. Endicott. Dewey was very large and state of the art at her time. Dewey was 500 feet (150 m) in length, had a beam width of 132 feet (40 m), and a working deck surface 100 feet (30 m) wide. The sidewalls reached 42 feet (13 m) above the deck. She displaced 18,500 tons empty. She had a draft of from 6.5 to 8 feet (2.0 to 2.4 m). Ballastpontoonstanks were flooded with water to submerge or pumped dry to raise the ship. The 14-foot (4.3 m) wide sidewalls contained crew barrack, officer stateroomcabins for officers, two mess halls, machine shops, and a steam plant to run the pumps.
Dewey was put into service in the U.S. Naval Base Subic Bay at Olongapo and remained active through World War I and the interwar years. Dewey sank 24 May 1910 while receiving a torpedo boat[2] but was raised undamaged on 29 June and put back in service.[3] After the outbreak of World War II, Dewey was moved to Mariveles, Bataan, when the U.S. forces retreated to that peninsula. As the reality of the situation of the U.S. forces became apparent, several undamaged ships, including Dewey, were ordered scuttled to prevent them from falling into the hands of the Japanese. On 8 April 1942, Dewey's docking officer, Lt. C. J. Weschler, scuttled the drydock.[4][5]
Three damaged ships were also scuttled with Dewey during the Battle of Bataan; the submarine tender Canopus and the minesweeperBittern[6] and the tugboatNapa.
She was later raised by the Japanese and towed to Manila Bay, but was sunk again by Allied forces. American Grumman TBF Avengertorpedo bombers attacked her on 12 and 13 November 1944, ending her 35 years of service.[7]
Dewey earned one battle star for her World War II service.
^"American Marine Engineer June, 1910". National Marine Engineers Beneficial Association of the United States. Retrieved 29 December 2020 – via Haithi Trust.
^"American Marine Engineer July, 1910". National Marine Engineers Beneficial Association of the United States. Retrieved 29 December 2020 – via Haithi Trust.