USS Los Alamos ( AFDB - 7 ) ABSD - 7 , an advanced base sectional dock , was constructed of seven advance base docks ( ABD ) as follows : ABD - 37 , ABD - 38 , ABD - 39 , and ABD - 40 were built by Chicago Bridge & Iron Company , Morgan City , Louisiana , and completed in December 1944 and January and February 1945 ; ABD - 51 and ABD - 52 were built by Pollock Stockton Shipbuilding Co . , Stockton , California , and completed in January and March 1945 ; and ABD - 58 was built by Pittsburgh Des Moines Steel Co . , Pittsburgh , Pennsylvania , and completed in October 1944 . Mare Island . The seven advance base docks were towed to Mare Island Navy Yard where they were erected and assembled into ABSD - 7 . Completed in March 1945 , the advance base section dock began duty at Mare Island , she served there until placed on the inactive list in March 1946 . In August 1946 she was reclassified to auxiliary floating drydock AFDB - 7 . Disassembled and towed to the east coast , she entered the Atlantic Reserve Fleet at Green Cove Springs , Florida in January 1947 . Holy Loch . Early in 1961 , four sections — " A " , " B " , " C " , and " D " — of AFDB ‑ 7 were towed across the Atlantic Ocean to Holy Loch , Scotland , where on 3 March 1961 the Navy established an important base for fleet ballistic submarines . A detachment of Seabee s from MCB - 4 erected and assembled the four sections . Completed 10 November , the auxiliary floating drydock was placed in service as USS " Los Alamos " ( AFDB - 7 ) . Assigned to SUBRON 14 , " Los Alamos " began drydock service for the FBM boats . Converted for use by submarines , she had the following characteristics : Late in 1961 she carried out her first SSBN drydocking of . She then served submarines of the " Highland Squadron " at Holy Loch . She supported refit and repair operations by submarine tenders , , , , and . In February 1964 she successfully completed the first " off center " docking of a Polaris submarine . By providing keel blocks preset for two separate classes of SSBN boats , " Los Alamos " " added immeasurably to the site ’ s repair flexibility . " On 18 June 1966 , section " F " was turned over to the U . S . Army , where it was converted into a floating power plant at Kwajalein named " Andrew J Weber " ( BD - 6235 ) . On 1 October 1977 , " Andrew J Weber " was returned to the U . S . Navy and reinstated on the Naval Vessel Register as YFP - 14 . Stricken from the Naval Vessel Register on 29 May 1991 , YFP - 14 remained at Guam and was designated to be used in a Sinkex on 18 June 1998 . YFP - 14 was sunk southeast of Agana , Guam on 19 July 2001 . The Naval Vessel Register ' s entry for YFP - 14 incorrectly indicates the vessel was sunk on 18 June 1998 , that was the date the vessel was designated to be sunk . On 5 December 1994 " Los Alamos " was decommissioned and stricken from the Naval Vessel Register . Disassembled into sections and returned to the United States , the remaining six original ABSD - 7 sections ( " A " , " B " , " C " , " D " , " E " and " G " ) were transferred to the Brownsville Navigation District , Texas on 11 August 1995 . Currently in use as " Solomon Ortiz Dry Dock " at Keppel AmFELS Shipyard , Brownsville , Texas .