USS ''AFDM-2'', (former ''YFD-4''), is an medium auxiliary floating drydock built in

Mobile, Alabama Mobile ( , ) is a city and the county seat of Mobile County, Alabama, United States. The population was 187,041 at the 2020 United States census, 2020 census. After a successful vote to annex areas west of the city limits in July 2023, Mobil ...

by the

Alabama Drydock and Shipbuilding Company The Alabama Drydock and Shipbuilding Company (ADDSCO) located in Mobile, Alabama, was one of the largest marine production facilities in the United States during the 20th century. It began operation in 1917, and expanded dramatically during W ...

for the

U.S. Navy The United States Navy (USN) is the maritime service branch of the United States Department of Defense. It is the world's most powerful navy with the largest displacement, at 4.5 million tons in 2021. It has the world's largest aircraft ...

. Originally named USS ''YFD-4'', Yard Floating Dock-4, she operated by

Todd Shipyards Todd or Todds may refer to: Places Australia * Todd River, an ephemeral river United States * Todd Valley, California, also known as Todd, an unincorporated community * Todd, Missouri, a ghost town * Todd, North Carolina, an unincorporated c ...

New Orleans New Orleans (commonly known as NOLA or The Big Easy among other nicknames) is a Consolidated city-county, consolidated city-parish located along the Mississippi River in the U.S. state of Louisiana. With a population of 383,997 at the 2020 ...

Louisiana Louisiana ( ; ; ) is a state in the Deep South and South Central regions of the United States. It borders Texas to the west, Arkansas to the north, and Mississippi to the east. Of the 50 U.S. states, it ranks 31st in area and 25 ...

for the repair of US ships during

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

. ''YFD-4'' was renamed an Auxiliary Floating Dock Medium ''AFDM-2'' in 1945 after the war.

Design

''AFDM-2'' was tall, wide, length of (all three section connected), and has a displacement of 6,360 tons. AFDM-2 could lift capacity 9,000 tons and had two service cranes to lift material and parts for removing damage parts and the installation of new parts. The floating drydock can repair ships up to a beam of , as she is 90 feet wide between the wing walls.

Ballast Ballast is dense material used as a weight to provide stability to a vehicle or structure. Ballast, other than cargo, may be placed in a vehicle, often a ship or the gondola of a balloon or airship, to provide stability. A compartment within ...

pontoons

tanks A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and battlefield mobility provided by tracks and a powerful engine; t ...

are flooded with water to submerge or pumped dry to raise the ship. Submerged she can load a ship with a draft up to .Building the Navy's Bases in World War II, History of the Bureau of Yards and Docks and the Civil Engineer Corps 1940–1946 Chapter IX, Floating Drydocks
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History

It was built by

in Mobile,

Alabama Alabama ( ) is a U.S. state, state in the Southeastern United States, Southeastern and Deep South, Deep Southern regions of the United States. It borders Tennessee to the north, Georgia (U.S. state), Georgia to the east, Florida and the Gu ...

. she was

laid down Laying the keel or laying down is the formal recognition of the start of a ship's construction. It is often marked with a ceremony attended by dignitaries from the shipbuilding company and the ultimate owners of the ship. Keel laying is one ...

in January 1942 and commissioned on 1 October 1943, right after her delivery to the Navy.

Hurricane Betsy Hurricane Betsy was an intense, deadly and destructive tropical cyclone that brought widespread damage to areas of Florida, the Bahamas, and the central United States Gulf Coast in September 1965. The storm's erratic nature, coupled with ...

, Category 4, sank and damaged ''AFDM-2'' on 9 September 1965. USS ''AFDM-2'' was at Todd Shipyards on the west side of the

Mississippi River The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...

Algiers, New Orleans Algiers () is a historic neighborhood of New Orleans and is the only Orleans Parish community located on the West Bank of the Mississippi River. Algiers is known as the 15th Ward, one of the 17 Wards of New Orleans. It was once home to many j ...

. ''AFDM-2'' had the water pumped out of her pontoon tanks and was raised for repair. The

salvage ship A salvage tug, also known historically as a wrecking tug, is a specialized type of tugboat that is used to rescue ships that are in distress or in danger of sinking, or to salvage ships that have already sunk or run aground. Overview Few tugbo ...

s MS ''Cable'' and and , an ''Achomawi-class''

fleet ocean tug A tugboat or tug is a marine vessel that manoeuvres other vessels by pushing or pulling them, with direct contact or a tow line. These boats typically tug ships in circumstances where they cannot or should not move under their own power, such ...

, helped in the recovery of ''AFDM-2''. Due to the large size of ''AFDM-2'' two

rescue and salvage ship Rescue and salvage ships (hull classification symbol ARS) are a type of military salvage tug. They are tasked with coming to the aid of stricken vessels. Their general mission capabilities include combat salvage, lifting, towing, retraction of grou ...

s, and arrived with three special support

barge A barge is typically a flat-bottomed boat, flat-bottomed vessel which does not have its own means of mechanical propulsion. Original use was on inland waterways, while modern use is on both inland and ocean, marine water environments. The firs ...

s to help in the salvage. Land-based

winch A winch is a mechanical device that is used to pull in (wind up) or let out (wind out) or otherwise adjust the tension (physics), tension of a rope or wire rope (also called "cable" or "wire cable"). In its simplest form, it consists of a Bobb ...

es were also used in the recovery. On 25 August 1966 tugs returned ''AFDM-2'' to Todd Shipyards, eleven months after her sinking. Repairs where completed and she was put back in service. Divers had to repair more than 100 holes in ''AFDM-2'' to float her again. On 16 May 1995 she was laid up in the

National Defense Reserve Fleet The National Defense Reserve Fleet (NDRF) consists of Ship, ships of the United States, mostly Merchant ship, merchant vessels, that have been Reserve fleet, mothballed but can be activated within 20 to 120 days to provide shipping during nationa ...

Beaumont, Texas Beaumont is a city in the U.S. state of Texas. It is the county seat of Jefferson County, Texas, Jefferson County, within the Beaumont–Port Arthur metropolitan area, located in Southeast Texas on the Neches River about east of Houston (city ...

. On 11 February 1999 she was reactivated and transferred to the Government of the

Dominican Republic The Dominican Republic is a country located on the island of Hispaniola in the Greater Antilles of the Caribbean Sea in the Atlantic Ocean, North Atlantic Ocean. It shares a Maritime boundary, maritime border with Puerto Rico to the east and ...

. She was later sold to Gulf Copper & Manufacturing Corporation at

Port Arthur, Texas Port Arthur is a city in the state of Texas, United States of America, located east of metro Houston. Part of the Beaumont–Port Arthur metropolitan area, the city lies primarily in Jefferson County, with a small extension in Orange County. ...

and renamed ''Mr. Morris''. In 2013 , a

landing ship, tank A Landing Ship, Tank (LST) is a ship first developed during World War II (1939–1945) to support amphibious operations by carrying tanks, vehicles, cargo, and landing troops directly onto a low-slope beach with no dock (maritime), docks or pier ...

, now a

museum ship A museum ship, also called a memorial ship, is a ship that has been preserved and converted into a museum open to the public for educational or memorial purposes. Some are also used for training and recruitment purposes, mostly for the small numb ...

, was repaired in ''AFDM-2''. On 17 December 2021, USS ''Orleck'' (DD-886) arrived in Port Arthur to be repaired in ''AFDM-2''.

Awards

American Campaign Medal The American Campaign Medal was a military award of the United States Armed Forces which was first created on November 6, 1942, by issued by President Franklin D. Roosevelt. The medal was intended to recognize those military members who had per ...

* Asiatic-Pacific Campaign Medal *

World War II Victory Medal The World War II Victory Medal was a service medal of the United States military which was established by an Act of Congress on 6 July 1945 (Public Law 135, 79th Congress) and promulgated by Section V, War Department Bulletin 12, 1945. Histo ...

References

External links

photo USS LST-325 a Landing Ship, Tank in AFDM-2 – Mr. Morris

photo USS LST-325 high and dry in AFDM-2 – Mr. Morris

photo USS LST-325 high and dry in AFDM-2 – Mr. Morris
{{DEFAULTSORT:AFDM-2, USS World War II auxiliary ships of the United States Floating drydocks of the United States Navy 1943 ships

Design

History

Awards

See also

References

External links