Bow-on view of USS Miami (SSN-755) in Shippingport (ARDM-4) during a routine hull inspection at Naval Submarine Base New London, in Groton, Connecticut. | |
History | |
---|---|
United States | |
Name | Shippingport (ARDM-4) |
Namesake | Shippingport, Pennsylvania |
Builder | Bethlehem Steel, Shipyard, Sparrows Point, Maryland |
Laid down | 5 April 1977 |
Launched | 2 September 1977 |
In service | 4 January 1979 |
Refit | completed September 2012 |
Status | active, Naval Submarine Support Facility, New London, Connecticut |
General characteristics | |
Class and type | ARDM-4-class |
Displacement | 5400 tons |
Length | 492 ft 0 in (149.96 m) |
Beam | 96 ft (29.3 m) |
Propulsion | None |
Shippingport (ARDM-4) is an ARDM-4-class United States Navy Medium Auxiliary Repair Dry Dock. She is one of the Navy's two medium auxiliary repair dry docks, and was the first floating dry dock built for the US Navy since World War II. [1] Laid down in 1977, delivered and placed in service on 4 January 1979, she is still in service at the Naval Submarine Support Facility at Naval Submarine Base New London, in Groton, Connecticut.
With a displacement of 5400 tons, this floating dry dock had a lifting capacity of 7800 tons. [1] Shippingport has two 25 ton portal gantry cranes on tracks, [2] one running along the top deck of each hull side superstructure. [3] She is a government owned, private contractor operated, restored and certified drydock used to execute submarine repairs. [4]
In October 2010, while Shippingport (ARDM-4) was nearing the end of her overhaul at BAE Systems Ship Repair at Norfolk, Virginia, [1] the U.S. Department of Defense (DoD) announced that General Dynamics Electric Boat was awarded an additional $6.5 million to its contract for ship forces duties during Shippingport's naval service craft overhaul (SCO) and recertification. [5] In September 2012, after being out of service for almost four years, Shippingport completed her SCO and year-long recertification. [4] The SCO included structural modifications to enable a lifting capacity to support a Virginia-class (SSN) nuclear attack submarine. In November 2013, General Dynamics Electric Boat announced it was awarded an additional $7.1 million contract by Naval Sea Systems Command (NAVSEA) for further repairs and preservation of floating dry dock Shippingport (ARDM-4), with the work to be completed by September 2014. [6]
A dry dock is a narrow basin or vessel that can be flooded to allow a load to be floated in, then drained to allow that load to come to rest on a dry platform. Dry docks are used for the construction, maintenance, and repair of ships, boats, and other watercraft.
USS George Washington Carver (SSBN-656), a Benjamin Franklin class fleet ballistic missile submarine, was the second ship of the United States Navy to be named for George Washington Carver (1865–1943), an American researcher and inventor.
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USS Oak Ridge (ARD-19/ARDM-1) was originally a United States Navy Auxiliary floating drydock suitable for dry docking destroyers, submarines and landing craft, built by the Pacific Bridge Company. In the early 1960s she was upgraded to support Los Angeles-class submarines, and re-classified as ARDM-1-class. A stern door and enclosed bow design allows for open ocean transits. The dock is non-propelled and therefore must be taken under tow to operational areas of the fleet. A steering mechanism with twin rudders is installed to facilitate this operation. Sufficient electrical power was provided by four diesel-driven generator sets to maintain all normal and operational requirements. Living, berthing, and mess facilities are provided for the dock's complement of 5 officers, 10 CPO's and a crew of 186.
USS Artisan (ABSD-1), later redesignated as (AFDB-1), was a ten-section, non-self-propelled, large auxiliary floating drydock of the United States Navy. The only U.S. warship with this name, Artisan was constructed in sections during 1942 and 1943 by the Everett-Pacific Shipbuilding & Dry Dock Company, in Everett, Washington; the Chicago Bridge & Iron Company, in Eureka, California; the Pollock-Stockton Shipbuilding Company, in Stockton, California; and the Chicago Bridge & Iron Company, in Morgan City, Louisiana. This ship was commissioned at Everett, Washington, on 10 May 1943, Captain Andrew R. Mack in command. With all ten sections joined, she was 927 feet (283 m) long, 28 feet (8.5 m) tall, and with an inside clear width of 133 feet 7 inches (40.72 m).
An auxiliary repair dock (ARD) is a type of floating drydock employed by the U.S. Navy, especially during World War II. The Navy commissioned 33 ARD vessels: ARD-1 through ARD-33. ARDs were self-sustaining in World War II. ARDs have a rudder to help in tow moving, making ARDs very mobile, and have a bow to cut through waves. ARDs have a stern that can be opened or closed. The stern can be closed with bottom-hinged flap gate, operated by hydraulic rams. This stern gate can be lowered for ship entrance into the submerged dock, and then closed to keep out waves. ARDs were built by the Pacific Bridge Company, in Alameda, California.
Arco (ARDM-5) is an ARDM-5-class Medium Auxiliary floating drydock for repair and serviced the United States Navy.
Alamogordo (ARDM-2) — a non-self-propelled United States Navy Auxiliary floating drydock completed in 1944 at Oakland, California, by the Pacific Bridge Company as ARD-26 — was commissioned on 15 June 1944. The floating dry dock completed outfitting at Oakland and training at Tiburon, CA, between mid-June and late August. On 3 September, she was taken in tow for the voyage west. En route to the Marianas, the dry dock made layovers of ten and seven days respectively at Pearl Harbor and Eniwetok. She arrived at Guam on 24 October and reported for duty with Service Squadron 11 (ServRon 11). Not long thereafter, however, she was assigned temporarily to ServRon 10.
USS Endurance (ARDM-3) was originally laid down as ARD-18, a non self-propelled United States Navy Auxiliary floating drydock in 1944. Built by the Pacific Bridge Company in Alameda, California. During World War II USS ARD-18 was assigned to the Asiatic-Pacific Theater and serviced ships at Guadalcanal, Ulithi, and Leyte-Samar Naval Base. After the war, floating dry dock ARD-18 was sent to Norfolk Shipbuilding and Drydock Corp.'s yard, circa 1967-68 and was lengthened by adding a 100 ft (30 m) midsection as well as an additional deck above the uppermost crane deck. Redesignated Medium Auxiliary Repair Dry Dock Endurance (ARDM-3), she served until retirement in 1995.
USS Waterford (ARD-5) was an Auxiliary floating drydock that served in the United States Navy during World War II, the Korean War, the Vietnam War, and the Persian Gulf War. She later served the Chilean Navy as Talcahuano (133).
An auxiliary floating drydock is a type of US Navy auxiliary floating dry dock. Floating dry docks are able to submerge underwater and to be placed under a ship in need of repair below the water line. Water is then pumped out of the floating dry dock, raising the ship out of the water. The ship becomes blocked on the deck of the floating dry dock for repair. Most floating dry docks have no engine and are towed by tugboats to their destinations. Floating dry docks come in different sizes to accommodate varying ship sizes, while large floating dry docks come in sections and can be combined to increase their size and lift power. Ballast pontoon tanks are flooded with water to submerge or pumped dry to raise the ship.
USS AFDM-2,, is an AFDM-3-class medium auxiliary floating drydock built in Mobile, Alabama by the Alabama Drydock and Shipbuilding Company for the U.S. Navy. Originally named USS YFD-4, Yard Floating Dock-4, she operated by Todd Shipyards at New Orleans, Louisiana for the repair of US ships during World War II. YFD-4 was renamed an Auxiliary Floating Dock Medium AFDM-2 in 1945 after the war.
USS ABSD-2, later redesignated as AFDB-2, was a ten-section, non-self-propelled, large auxiliary floating drydock of the US Navy. Advance Base Sectional Dock-2 was constructed in sections during 1942 and 1943 by the Mare Island Naval Shipyard in Vallejo, California for World War II. Her official commissioning ceremony took place on 14 August 1943 with CDR Joseph J. Rochefort in command. With all ten sections joined, she was 927 feet (283 m) long, 28 feet (8.5 m) tall, and with an inside clear width of 133 feet 7 inches (40.72 m). ABSD-2 had a traveling 15-ton capacity crane with an 85-foot (26 m) radius and two or more support barges. The two side walls were folded down under tow to reduce wind resistance and lower the center of gravity. ABSD-2 had 6 capstans for pulling, each rated at 24,000 lbf (110,000 N) at 30 ft/min (0.15 m/s), 4 of the capstans were reversible. There were also 12 ballast compartments in each section.
ABSD-6 is an advanced base sectional dock which was constructed of nine advance base docks (ABD) sections for the US Navy as an auxiliary floating drydock for World War II. ABSD-6 was built by Mare Island Naval Shipyard at Vallejo, California. ABSD-6 was commissioned on 28 September 1944. Advance Base Sectional Dock-6 was constructed in sections during 1942 and 1943. Each section are 3,850 tons and are 93 feet long each. Each Section had a 165 feet beam, a 75 feet molded depth and had 10,000 tons lifting capacity each. There were 4 ballast compartments in each section. With all nine sections joined, she was 825 feet long, 28 feet tall, and with an inside clear width of 133 feet 7 inches. ABSD-2 had a traveling 15-ton capacity crane with an 85-foot radius and two or more support barges. The two side walls were folded down under tow to reduce wind resistance and lower the center of gravity. ABSD-6 had 6 capstans for pulling, each rated at 24,000 lbf (110,000 N) at 30 ft/min (0.15 m/s), 4 of the capstans were reversible.
USS ABSD-4, later redesignated as AFDB-4, was a nine-section, non-self-propelled, large auxiliary floating drydock of the US Navy. Advance Base Sectional Dock-4 was constructed in sections during 1942 and 1943 by the Mare Island Naval Shipyard in Vallejo, California for World War II. With all ten sections joined, she was 927 feet long, 28 feet tall, and with an inside clear width of 133 feet 7 inches. ABSD-4 had a traveling 15-ton capacity crane with an 85-foot radius and two or more support barges. The two side walls were folded down under tow to reduce wind resistance and lower the center of gravity. ABSD-4 had 6 capstans for pulling, each rated at 24,000 lbf (110,000 N) at 30 ft/min (0.15 m/s), 4 of the capstans were reversible. There were also 4 ballast compartments in each section.
USS ABSD-5, later redesignated as AFDB-5, was a nine-section, non-self-propelled, large auxiliary floating drydock of the US Navy. Advance Base Sectional Dock-5 was constructed in sections during 1943 and 1944 by the Chicago Bridge & Iron Company in Morgan City, Louisiana for World War II. With all nine sections joined, she was 825 feet long, 28 feet tall, and with an inside clear width of 133 feet 7 inches. ABSD-5 had two traveling 15-ton capacity crane with an 85-foot radius and two or more support barges. The two side walls were folded down under tow to reduce wind resistance and lower the center of gravity. ABSD-5 had 6 capstans for pulling, each rated at 24,000 lbf (110,000 N) at 30 ft/min (0.15 m/s), 4 of the capstans were reversible. There were also 4 ballast compartments in each section.
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