The US Navy is decommissioning the submarine USS Boise after an $800 million repair effort.

Thanh VinhApril 13, 2026 17:01

After 11 years of inactivity and $800 million in ineffective maintenance costs, the nuclear attack submarine USS Boise (SSN 764) has been officially decommissioned by the US Navy.

The U.S. Navy has officially announced plans to decommission the Los Angeles-class nuclear attack submarine USS Boise (SSN 764). Admiral Daryl Caudle, Chief of Naval Operations, affirmed this decision as a necessary strategic step to optimize fleet composition and focus resources on more important projects.

Tàu ngầm tấn công hạt nhân USS Boise SSN 764 của Hải quân Mỹ

Failure in attempts to restore combat capability.

The USS Boise submarine had not made any voyages since January 2015. After more than 11 years in port, U.S. military officials determined the vessel was no longer operationally effective. Although a maintenance plan was drawn up in 2019, it was not until 2021 that the submarine was dry-docked at a private shipyard.

Notably, despite the Pentagon investing approximately $800 million in repairs, only 25% of the work has been completed. The total estimated cost to get the ship back into service is estimated at $3 billion, a figure considered disproportionate to the remaining usable value of the vessel.

Tàu ngầm USS Boise (SSN 764) trong tình trạng sửa chữa kéo dài
The submarine USS Boise (SSN 764) was decommissioned after a long period of unsuccessful repairs.

Shifting resources to the next generation of submarines.

The decommissioning of the USS Boise allows the U.S. Navy to reallocate its highly skilled team of experts to the next-generation Virginia-class and Columbia-class submarine projects. These submarine classes are more technologically advanced and better suited to meet future security challenges.

Below is a summary of the USS Boise's operational schedule:

MilestoneTime
Signing a shipbuilding contract.1987
Launch1991
Put into service1992
Final deploymentJanuary 2015
Percentage of completed repair work25%

According to military experts, the decision to decommission the USS Boise, though belated, was a correct step to avoid wasting defense spending. Maintaining a ship that had spent one-third of its operational life in a non-operational state was a barrier to the combat readiness of the entire fleet.

Thanh Vinh