USS Mississippi (SSN-782) Submarine Model. Dive with the USS Mississippi (SSN-782) Submarine Model again in this handcrafted 20-inch submarine. Each piece is carved from wood and handpainted to provide a piece you’ll love. Length – 20 inches. US Veteran Owned Business. The product is not intended to be used by children 12 years and younger. USS Mississippi (SSN-782) is a Virginia-class submarine of the United States Navy, named for the state of Mississippi. The contract to build her was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut on 14 August 2003. Mississippi’s keel was laid down on 9 June 2010. [4] Mississippi was christened on 3 December 2011 at General Dynamics Electric Boat in Groton, Connecticut. The submarine was commissioned at a ceremony on 2 June 2012 in Pascagoula, Mississippi.