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Coordinates: 38°36′41″N 90°11′17″W / 38.611483°N 90.188101°W / 38.611483; -90.188101

USS Inaugural (AM-242)
USS Inaugural
USS Inaugural (in dazzle camouflage) during World War II
Builder: Winslow Marine Railway & Shipbuilding Company
Laid down: 22 May 1944
Launched: 1 October 1944
Commissioned: 30 December 1944
Decommissioned: 9 September 1946
Reclassified: MSF-242, 7 February 1955
Struck: 1 March 1967
Fate: Sold 1968 as a floating museum in St. Louis.
Sunk in the Great Flood of 1993.
General characteristics
Class & type: Admirable-class minesweeper
Displacement: 530 tons
Length: 184 ft 6 in (56.24 m)
Beam: 33 ft (10 m)
Draft: 9 ft 9 in (2.97 m)
Speed: 15 knots (27.8 km/h)
Complement: 104
Armament: 1 × 3"/50 caliber gun
6 × Oerlikon 20 mm cannon
4 × Bofors 40 mm guns (2×2)
2 × Depth charge projectors (K-guns)
2 × Depth charge tracks
Service record
Part of: US Pacific Fleet (1944-1946)
Atlantic Reserve Fleet (1946-1967)
Operations: Battle of Okinawa
Awards: 2 Battle stars

USS Inaugural (AM-242) was an Admirable-class fleet minesweeper. The Admirable class was the largest and one of the most successful classes of U.S. minesweepers ordered during World War II. Inaugural was launched on 1 October 1944, and was commissioned on 30 December, with Lieutenant John H. Pace USNR in command.

The ship was decommissioned in 1946 and set up as a museum ship in St. Louis, Missouri in 1968. In the flood of 1993, Inaugural was ripped from her mooring and grounded a mile downstream. As of March 2011, the hulk was still sitting on the Missouri side of the river.[1]


Inaugural was built and launched by the Winslow Marine Railway and Shipbuilding Company of Winslow, Washington.

Following shakedown off the California coast, Inaugural sailed on 14 March 1945 for Pearl Harbor, where she arrived eight days later. For the next two months, the minesweeper performed patrol and escort duties between Hawaii and the islands of the western Pacific. She was at Saipan on 22 May and departed that day with a convoy bound for Okinawa, site of the last and largest amphibious operation of the Pacific war. After a voyage enlivened by several attacks on suspected submarines, the convoy reached Okinawa on 30 May.

During the desperate struggle for Okinawa, Inaugural patrolled the seas around the island group, often firing at enemy planes as Japanese aircraft made a suicidal effort to stop American ground forces by destroying their support from the sea. Except for the period 19 through 24 July, when the ship put to sea to ride out the great typhoon, Inaugural remained in the dangerous waters around Okinawa until 30 August 1945.

With the war then over, she steamed to the waters around Japan and Korea for minesweeping operations that were a necessary prelude to occupation. She swept the approaches to Jinsen, Korea, in September, and later cleared mines in waters off Nagasaki and Sasebo, Japan. Inaugural proceeded to Okinawa where she received needed equipment 14–24 October, and then returned to the important minesweeping operations around the Japanese home islands.

The veteran minesweeper sailed on 24 December for the United States, via Saipan and Pearl Harbor, and arrived at San Pedro, California, on 7 February 1946. Sailing again on 11 March, she proceeded to Galveston, Texas, and decommissioned there on 9 September 1946. She was reclassified MSF-242 on 7 February 1955. Inaugural entered the Atlantic Reserve Fleet, Texas Group, where she remained until struck from the Navy List on 1 March 1967 and sold.

Inaugural had performed her duties with distinction. By the end of her career, she had cleared eighty-two mines and was awarded two battle stars for service during World War II.

Museum ship[]

After decommissioning, USS Inaugural became a museum at St. Louis.

In 1968, Inaugural was towed to St. Louis and established as a floating museum. The vessel was designated as a National Historic Landmark on 14 January 1986, as one of two surviving Admirable-class minesweepers used in the Pacific during World War II.

On 1 August 1993, during flooding of the Mississippi River, Inaugural broke loose from her moorings at the Gateway Arch. The ship suffered a breach in her hull, took on water, and rolled on her port side. She sank on the Missouri side of the river, half a mile south of the Poplar Street Bridge. She has since remained in that position, partially submerged.

USS Inaugural in August 2012.

Plans to salvage the wreck in one piece and restore it were deemed unfeasible. The ship was determined a total loss. Inaugural's Landmark designation was withdrawn on 7 August 2001,[2] because she had ceased to meet the criteria. As of August 2011, she is still sitting where she came to rest and can be seen when the river is at or below average level.

In January 2013, the river dropped so low that one may walk up to the ship. Scrapping work was set to begin in January, but river levels rose again. She is still in the same location with a few pieces of metal missing from the start of scrapping.[citation needed]

See also[]

  • List of U.S. National Historic Landmark ships, shipwrecks, and shipyards


  1. Garrison, Chad (7 March 2007). "The Strange, Strange Tale of the U.S.S. Inaugural". The Riverfront Times. Retrieved 2009-01-30. 
  2. "Withdrawal of National Historic Landmark Designation U.S.S. Inaugural (AM-242)". National Historic Landmarks Program. National Park Service. Retrieved 2012-09-02. 

This article incorporates text from the public domain Dictionary of American Naval Fighting Ships. The entry can be found here.

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