The USS ABSD-7 was a 7-section large auxiliary floating dry-dock built in Louisiana and commissioned on March 1, 1945, for the US Navy. It conducted operations for 16 years before being reclassified first in August 1946 as AFDB-7 and secondly in 1961 as Los Alamos. It was 825 feet long, with a beam of 246 feet and a complement of 187 people on board. It was decommissioned on December 5, 1994, and struck from the Naval Register the same day, but sections A to E and section G were transferred to the Brownsville Navigation District and are active since 1995. Unfortunately, section F sunk on July 19, 2001.