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Navy/USMC

Navy Leaders Tell Lawmakers Columbia Sub About 17 Months Late

Wednesday, June 25th, 2025

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Navy Leaders Tell Lawmakers Columbia Sub About 17 Months Late

Artist rendering of the future Columbia-class nuclear-armed ballistic missile submarine (SSBN), which will replace the Ohio-class submarines. (Illustration: U.S. Navy)

The Columbia-class nuclear ballistic missile submarine (SSBN) is now projected to be ready by early 2029, Navy officials told lawmakers this week. The Navy says its highest priority program is the Columbia-class, starting with the future USS District of Columbia (SSBN-826), which it intends to gradually replace the aging Ohio-class SSBNs. Acting Chief of Naval Operations told the Senate Appropriation's defense subcommittee on June 24 that “we are now on a pace to deliver that sub approximately two years late,…

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