LST-903 andUSSLST-901 at anchor circa 1945-46
History
United States
Name	USSLST-903
Builder	Dravo Corporation,Neville Island,Pittsburgh
Laid down	15 October 1944
Launched	23 December 1944
Commissioned	20 January 1945
Decommissioned	10 September 1946
Renamed	USSLyman County (LST-903), 1 July 1955
Stricken	1 November 1958
Fate	Sunk as a target, 28 March 1959
General characteristics
Class & type	LST-542-classtank landing ship
Displacement	1,625 long tons (1,651 t) light 3,640 long tons (3,698 t) full
Length	328 ft (100 m)
Beam	50 ft (15 m)
Draft	Unloaded : 2 ft 4 in (0.71 m) forward 7 ft 6 in (2.29 m) aft Loaded : 8 ft 2 in (2.49 m) forward 14 ft 1 in (4.29 m) aft
Propulsion	2 ×General Motors12-567diesel engines, two shafts, twin rudders
Speed	12knots (22 km/h; 14 mph)
Boats & landing craft carried	2 ×LCVPs
Troops	Approximately 130 officers and enlisted men
Complement	8-10 officers, 89-100 enlisted men
Armament	8 ×40 mm guns 4 ×20 mm guns

USSLyman County (LST-903) was anLST-542-classtank landing ship built for theUnited States Navy duringWorld War II. Named afterLyman County, South Dakota, she was the only U.S. Naval vessel to bear the name.

Originally laid down as USSLST-903 by theDravo Corporation ofPittsburgh, Pennsylvania on 15 October 1944; the ship was launched on 23 December 1944, sponsored by Mrs. E. W. Wilson; and commissioned atNew Orleans, Louisiana on 20 January 1945.

After shakedown out ofSt. Andrews Bay, FloridaLST-903 departed New Orleans on 21 February for thePacific. Steaming via thePanama Canal andSan Diego, she reachedPearl Harbor on 27 March. During the next seven weeks she participated in intensive amphibious training inHawaiian waters; and, after embarkingArmy troops and loadingLVTs, she sailed in convoy for theMarianas on 20 May.LST-903 steamed viaEniwetok, arrivedSaipan on 10 June, and on 11 July departed on a supply run toOkinawa andGuam.

At theconclusion of hostilities she was operating out ofSaipan; thence from 23 to 29 August she steamed toLeyte Gulf for supply runs among thePhilippine Islands. Between 20 September and 4 November she made two runs carrying occupation troops fromManila Bay,Luzon toYokohama, Japan. Departing Japan on 11 November, she sailed via the Marianas and Pearl Harbor and reached San Diego on 31 December.LST-903 operated along the west coast during the next five months before reachingPuget Sound on 1 June 1946 for deactivation.

She decommissioned atVancouver, Washington on 10 September and entered the Pacific Reserve Fleet. NamedUSSLyman County (LST-903) on 1 July 1955, she was designated a target ship on 20 October 1958. Her name was struck from theNaval Vessel Register on 1 November. On 28 March 1959 she wastorpedoed by theMenhaden (SS-377) off the coast ofBaja California and sank in 720fathoms of water.

 This article incorporates text from thepublic domainDictionary of American Naval Fighting Ships.

• "Lyman County".Dictionary of American Naval Fighting Ships. Archived fromthe original on 14 March 2004. Retrieved10 August 2007.
• "LST-903Lyman County".Amphibious Photo Archive. Retrieved10 August 2007.

• LST-542-class tank landing ships
• World War II amphibious warfare vessels of the United States
• Lyman County, South Dakota
• Ships built in Pittsburgh
• 1944 ships
• Ships sunk as targets
• Maritime incidents in 1958
• Ships built by Dravo Corporation

• Articles with short description
• Short description is different from Wikidata
• Use dmy dates from March 2022
• Wikipedia articles incorporating text from the Dictionary of American Naval Fighting Ships