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South Dakota (SSN-790)
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Virginia Class Attack Submarine: Named South Dakota (SSN-790).
The contract to build her was awarded to Huntington Ingalls Industries in partnership with the Electric Boat division of General Dynamics in Newport News, Virginia on 22 December 2008. Commissioned on 2 February 2019.
SSN-784 through approximately SSN-791 are planned to make up the Third Block or "Flight" Block III subs will feature a revised bow, including some technology from Ohio class SSGNs. SSN-790 will be built at Electric Boat in Groton, Conn. Specifications:Power Plant: One S9G pressurized water reactor, 29.84MW (40,000hp), one shaft with pumpjet propulsor, Improved Performance Machinery Program Phase III one secondary propulsion submerged motor. Displacement, 7,800 tons submerged. Length: 377 feet. Draft: 32 feet. Beam: 34 feet. Speed: 25+ knots submerged. Depth: Greater than 800 feet. 12 VLS & four torpedo tubes, capable of launching Mark 48 torpedoes, UGM-109 Tactical Tomahawks, Harpoon (missile)s and the new advanced mobile mine when it becomes available: Unmanned Undersea Vehicles, Special Warfare: Dry Deck Shelter. Advanced SEAL Delivery System. Sonars: Spherical active/passive arrays. Light Weight Wide Aperture Arrays. TB-16, TB-29, and future towed arrays. High-frequency chin and sail arrays. Countermeasures: 1 internal launcher (reloadable 2-barrel) 14 external launchers. Crew: 134 officers and men.
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 | 1.09k | Newport News Shipbuilding is teamed with General Dynamics Electric Boat to build Virginia-class submarines. Newport News Shipbuilding builds the stern, habitability & machinery spaces, torpedo room, sail and bow. Electric Boat builds the pressure hull, engine room and control room. Newport News Shipbuilding and Electric Boat each perform work on the reactor plant as well as alternate on the final assembly, test, outfit and delivery. The team has been recognized as the best shipbuilding program in the Navy. Virginia-class Infographic PDF. | Text & photo courtesy of huntingtoningalls.com. | |
 | 4.90k | An artist rendering of the Virginia-class submarine South Dakota (SSN-790), 21 June 2012. | USN photo # N-ZZ999-006, illustration by Stan Bailey courtesy of navy.mil. via Ron Reeves (of blessed memory). | |
 | 254k | The stern unit of South Dakota (SSN-790) stands upright in the Ring Module Shop, August 2014. | Photo # 05-DCS14-254-59 courtesy of Newport News Shipbuilding by Chris Oxley. | |
 | 302k | The stern of the South Dakota (SSN-790) begins its move to the Sea Shuttle. | Photo # 10_DCS15-466-26 courtesy of Newport News Shipbuilding by Chris Oxley. | |
 | 824k | Keel laying ceremony for the Colorado (SSN-788) at the General Dynamics Electric Boat Quonset Point facility in North Kingstown, R.I. Saturday, 7 March 2015. The ceremony took place next to sections of the Delaware (SSN-791) and the South Dakota (SSN-790), left, and the stage was in front of the tail section of the Colorado. The ship sponsor is Annie Mabus, daughter of Secretary of the Navy Ray Mabus. | Photo # EP-150309824 courtesy of Dana Jensen / The Day. | |
 | 425k | Shipbuilders install the upper rudder on the submarine South Dakota (SSN-790), May 2015. | Photo # 04-DCS15-196-45 by Ricky Thompson, courtesy of nns.huntingtoningalls.com | |
 | 596k | George Scott sets up a mirror for welding pipe inside the sail of the submarine South Dakota (SSN-790), August 2015. | Photo # 7DCS15-376-88 by Chris Oxley, courtesy of nns.huntingtoningalls.com | |
 | 142k | Master Shipbuilder Elmer Lundy lays out machining marks on a torpedo tube shutter door for the submarine South Dakota (SSN-790), September 2015. | Photo # 2-DCS15-370-271 by Chris Oxley, courtesy of nns.huntingtoningalls.com | |
 | 871k | Electric Boat employee Dominico Castaldi welds the initials of Ship Sponsor Deanie Dempsey during the keel laying of the submarine South Dakota (SSN-790), 4 April 2016 at Quonset Point. | Photo courtesy of gdebchristenings.com. | |
 | 383k | The crew of the submarine South Dakota (SSN-790) at its keel laying, 4 April 2016 at Quonset Point. | Photo courtesy of gdebchristenings.com. | |
 | 162k | Christening ceremony of the South Dakota (SSN-790). The sponsor was Mrs. Deanie Dempsey, wife of Admiral Dempsey. | Photos courtesy of Dale Hargrave. | |
 | 223k | Buffing with sandpaper, Adam Holland prepares the galley in the Habitability Module for the submarine South Dakota (SSN-790), May 2016. | Photo # 7-DCS16-63-25 by John Whalen, courtesy of nns.huntingtoningalls.com | |
 | 281k | Leroy Roberts installs rollers for the drawers in the galley of the submarine South Dakota (SSN-790), May 2016. | Photo # 13-DCS16-63-30 by John Whalen, courtesy of nns.huntingtoningalls.com | |
 | 218k | Gregory Powell TIG welds on the habitability module for the submarine South Dakota (SSN-790), May 2016. | Photo # 3-DCS16-63-9 by John Whalen, courtesy of nns.huntingtoningalls.com | |
 | 251k | Gregory Powell TIG welds on the habitability module for the submarine South Dakota (SSN-790), June 2016. | Photo # 11-DCS16-63-95 by John Whalen, courtesy of nns.huntingtoningalls.com | |
 | 455k | In the Supplemental Module Outfitting Facility, Larry Bullock tightens lines of the end cap protecting section one South Dakota (SSN-790), September 2016. | Photo # 3-DCS16-490-9 by Chris Oxley, courtesy of nns.huntingtoningalls.com | |
 | 631k | Apprentice Turner Paxton secures a shroud line on of South Dakota (SSN-790), September 2016. | Photo # 8-DCS16-490-40 by Chris Oxley, courtesy of nns.huntingtoningalls.com | |
 | 914k | Section one of South Dakota (SSN-790) is transported to the Sea Shuttle for shipping to Electric Boat, September 2016. | Photo # 9-DCS16-490-154 by Chris Oxley, courtesy of nns.huntingtoningalls.com | |
 | 950k | Section one of South Dakota (SSN-790) is transported to the Sea Shuttle for shipping to Electric Boat, September 2016. | Photo # 10-DCS16-490-408 by Chris Oxley, courtesy of nns.huntingtoningalls.com | |
 | 607k | The submarine Pre-Commissioning Unit (PCU) South Dakota (SSN-790) transits the Thames River at Naval Submarine Base New London in Groton, Connecticut, 9 January 2019. | USN photo # 190109-N-LW591-045 by Mass Communication Specialist 1st Class Steven Hoskins via navy.mil. | |
 | 515k | The color guard parade the admiral's flag during the commissioning ceremony for the South Dakota (SSN-790) at Naval Submarine Base New London in Groton, Connecticut, 2 February 2019. | USN photo # 190202-N-LW591-205 by Mass Communication Specialist 1st Class Steven Hoskins via navy.mil. | |
 | 229k | The crew of the attack submarine South Dakota (SSN-790) stands assembled after "bringing the ship to life" and assuming duty during the boat's commissioning ceremony at Naval Submarine Base New London, 2 February 2019. | USN photo # 190202-N-ME396-296 by Mass Communication Specialist 3rd Class Tristan B. Lotz via navy.mil. | |
There is no DANFS History currently available for South Dakota (SSN-790) at the Haze Gray & Underway Web Site, the main archive for the DANFS Online Project.
Crew Contact And Reunion Information
Not applicable to this ship.
Additional Resources and Web Sites of Interest
The VIRGINIA Class America's Next Submarine
The Virginia Class—A New Submarine for the 21st Century
SSN-774 Virginia-class NSSN New Attack Submarine Centurion
NSSN VIRGINIA CLASS ATTACK SUBMARINE, USA
HISTORIC SUBMARINE DOCUMENTARY AND TRAINING FILMS
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