Alamogordo (ARDM-2) — a non-self-propelled United States Navy Auxiliary floating drydock completed in 1944 at Oakland, California, by the Pacific Bridge Company as ARD-26 — was commissioned on 15 June 1944.

The floating dry dock completed outfitting at Oakland and training at Tiburon, CA, between mid-June and late August.

En route to the Marianas, the dry dock made layovers of ten and seven days respectively at Pearl Harbor and Eniwetok.

Towed to the east coast in 1964, she underwent conversion to a medium auxiliary repair dry dock at Baltimore, Maryland by the Bethlehem Steel Corp. ARD-26 was named Alamogordo on 22 March 1965 and simultaneously redesignated ARDM-2.

After being taken out of service, Alamogordo was laid up at Fort Eustis, Virginia in the James River division of the National Defense Reserve Fleet.