Huntington Ingalls Industries, a provider of military shipbuilding and marine systems, has been awarded a $115 million contract modification by the US Navy to continue the execution of the USS Columbus engineered overhaul.

The contracting activity is the Naval Sea Systems Command in Washington, DC.

The USS Columbus is a Los Angeles-class fast attack submarine commissioned in 1993. The overhaul will involve extensive maintenance and modernisation to ensure the vessel remains operationally effective for years.

Overhauling the fast attack submarine is commonplace, with maintenance and modernisation contracts frequently occurring from Huntington Ingalls Industries. For example, most recently, in 2021, the company were awarded a $194m USS Columbus contract for continued engineering overhaul work.

Hull support, maintenance, and modernisation contracts date back to 2015. The work under the contract was valued at $57.8m and included the maintenance and restoration of the boat’s hull structure, tanks, propulsion systems, electric plant, auxiliary systems, armament and furnishings, and numerous alterations.

Huntington Ingalls Industries has a history of providing shipbuilding and overhaul services to the US Navy. The company is known for its expertise in nuclear-powered vessels, including aircraft carriers and submarines. The USS Columbus overhaul is just one of many projects the company is undertaking for the navy.

A Huntingdon Ingalls Industries and General Dynamics partnership also suppliers the Virginia-class submarine. They have supplied 48 units of the sub for the US Navy, with the program contract costing $156.5 billion, according to GlobalData’s “The Global Submarine Market 2023-2033“.

The work will be performed at Huntington Ingalls Industries Newport News Shipbuilding facility in Virginia, where the company has been building and repairing ships for over a century. The project is expected to be completed by December 2023.

Huntington Ingalls Industries reported a 12.1% rise in revenue for the entire year of 2022. Huntington Ingalls Industries (HII) also reported revenues of $10.7bn for fiscal year 2022 (FY22), which is 12.1% higher than $9.5bn in 2021.