War II On 5 December 1945, the operational command of LST-519 was transferred from the Amphibious Force to the Service Force. Mid-January 1946, found her in Guantanamo Bay, Cuba, for the first postwar Atlantic Fleet maneuvers. On the trip from Norfolk, LST-519 transported on her main deck four LCM landing craft, each of which carried an LCVP inside. Present for the occasion were the , , cruisers, destroyers and fleet auxiliaries. LST-519 was one of several LSTs that served as mother-ships to small boat crews who operated LCMs and LCVPs as liberty boats for the fleet anchored in the harbor. Leaving Cuba in mid-February for Searsport, Maine, on the Penobscot Bay, LST-519 had to put in at Boston's Charlestown Navy Yard to repair storm damage suffered in a gale off Cape Hatteras. She then proceeded to Searsport, for her next assignment. At Searsport, a Liberty ship transloaded over 350 tons of obsolete 1,000- and 500-pound aerial bombs into a newly constructed temporary wooden bin on the main deck. Out past the continental shelf – about one hundred fifty miles offshore with a minimum depth of 1,000 fathoms – these bombs were dumped along with 5,280 bazooka anti-tank rounds. At least four such bomb-dumping missions were made before the LST-519 was relieved by three other LSTs. Davisville, Rhode Island, was the next port of call. A tank deck full of steel pontoon cubes were transported to Norfolk Navy Yard where they were promptly assembled into large pontoon barges as soon as they were unloaded. On 15 July 1946, the LST-519 was transferred to the Commander, Eastern Sea Frontier for duty as a disposal vessel of defective and obsolete munitions. To facilitate dumping of ordnance, toxic and nuclear waste at sea, special equipment and bins were installed. After this, LST-519 operated off the Atlantic and Gulf coasts, disposing of ammunition from Naval ammunition depots at Indianhead, MD; Hingham, MA; Yorktown, VA; Charleston, SC; Earle, NJ; Fort Mifflin, PA; New Orleans, LA and Newport, RI. In accordance with a Secretary of the Navy directive dated 12 May 1955, LST-519 was renamed USS Calhoun County (LST-519) effective 1 July 1955. She was the first ship to bear the name, which honors a Calhoun County located in each of eleven states – Alabama, Arkansas, Florida, Georgia, Illinois, Iowa, Michigan, Mississippi, South Carolina, Texas and West Virginia. On the morning of 20 June 1956, while dumping