On December 15, 2021, USS Connecticut (SSN-22) was assisted by a tugboat as it departed San Diego Harbor, visibly bearing the severe damage sustained during its earlier underwater collision in the South China Sea, with the submarine’s bow noticeably sheared off and its sonar dome missing, highlighting the extent of repairs needed after the Seawolf-class fast-attack submarine struck an uncharted seamount while operating submerged. | History Vault Archives

The restoration of the Seawolf submarine is truly one of a kind. A Seawolf-class submarine cost around $3 billion per unit for the first two (USS Seawolf, USS Connecticut), with the heavily modified USS Jimmy Carter costing about $3.5 billion, making them some of the most expensive attack submarines ever built, though figures vary slightly by source and year of estimation | Modern Guardian