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As the nation's largest, most comprehensive U.S. Navy fleet repair and maintenance facility between the U.S. West Coast and the Far East, we provide a fleet that's capable, ready and “Fit to Fight!”

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Pearl Harbor Naval Shipyard wraps up dry dock phase of North Carolina Maintenance
The Virginia-class fast-attack submarine USS North Carolina (SSN 777) transits the waters of Pearl Harbor to the piers following a successful undocking evolution at Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF) in Pearl Harbor, Hawaii, Aug. 12, 2026. The submarine shifted to a pier-side location to continue its operational preparations after completing dry dock maintenance. 

North Carolina was commissioned May 3, 2008. North Carolina is the fourth Virginia-class submarine and the fourth U.S. Navy ship to be named for the Tar Heel state. North Carolina is assigned to Submarine Squadron 1 and capable of supporting various missions, including anti-submarine warfare, anti-surface ship warfare, strike warfare, special operations support, and intelligence, surveillance, and reconnaissance.

PHNSY & IMF’s mission is to keep the Navy’s fleet “Fit to Fight” by repairing, maintaining, and modernizing the Navy's fast-attack submarines and surface ships. Strategically located in the heart of the Pacific, it is the most comprehensive fleet repair and maintenance facility between the U.S. West Coast and the Far East. (U.S. Navy photo by Camey Streff)
Aug. 12, 2026 - Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF) successfully undocked Virginia-class fast-attack submarine USS North Carolina (SSN 777), Aug. 12, 2026, clearing a critical benchmark in the undersea asset’s scheduled lifecycle maintenance period.

PHNSY & IMF, HCC partner to showcase shipyard careers at Submarine Museum
A Honolulu Community College summer academy student participates in a hands-on demonstration hosted by Pearl Harbor Naval Shipyard & Intermediate Maintenance Facility during a mini-trades fair at the Pacific Fleet Submarine Museum on July 15, 2026. PHNSY & IMF’s STEM program participated in the HCC Summer CTE Academy event at the museum, conducting a mini-career fair for more than 100 students from the Academy, providing real-world shop exposure to students expressing an interest in trades, engineering, and STEM. PHNSY & IMF’s mission is to keep the Navy’s fleet “Fit to Fight
Aug. 12, 2026 - It was a hot, bustling day at the Pacific Fleet Submarine Museum at Pearl Harbor. A recent ribbon-cutting for a new exhibit highlighted Pearl Harbor Naval Shipyard's more than 100-year history of submarine contributions. This provided the perfect backdrop for Honolulu Community College’s summer Career and Technical Education (CTE) program to cap off its season with a shipyard-sponsored mini-trades fair.

USS Illinois successfully undocks at Pearl Harbor Naval Shipyard
Virginia-class fast-attack submarine USS Illinois (SSN 786) leaves Dry Dock 2 at Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF), June 24, 2026, completing an important milestone in the submarine’s scheduled lifecycle maintenance period. Commissioned Oct. 29, 2016, Illinois is the 13th Virginia-class submarine. It is the second U.S. Navy ship to be named for the state of Illinois. Illinois is assigned to Submarine Squadron 1 and is capable of supporting various missions, including anti-submarine warfare; anti-surface ship warfare; strike warfare; special operations forces support; and intelligence, surveillance, and reconnaissance. PHNSY & IMF’s mission is to keep the Navy’s fleet “Fit to Fight
July 7, 2026 - Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF) successfully undocked Virginia-class fast-attack submarine USS Illinois (SSN 786), June 24, 2026, completing an important milestone in the submarine’s scheduled lifecycle maintenance period.

The Impossible Turnaround of Dry Dock 2 at PHNSY
Workers with Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF), perform a basin washdown of Dry Dock 2 immediately following dry dock dewatering at Joint Base Pearl Harbor-Hickam, July 7, 2026. The basin washdown is a critical maintenance step performed immediately after a vessel is undocked and the water is pumped out, clearing away marine growth, silt, and debris from the dock floor. This ensures a clean and safe working environment for the shipyard's shipwright, rigging, and engineering teams as they work quickly under tight schedules to build the next docking pattern. PHNSY & IMF’s mission is to keep the Navy’s fleet “Fit to Fight
July 6, 2026 - Shipyard workers at Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF) recently completed a rapid two-week turnaround of historic Dry Dock 2. The operation involved undocking a U.S. Navy submarine and immediately preparing the dock structure to receive a second vessel. This expedited schedule required precise coordination across multiple industrial departments to meet strict fleet readiness timelines.

USS Colorado returns to Fleet from maintenance ahead of schedule, accelerating Pacific readiness
Virginia-class fast-attack submarine USS Colorado (SSN 788) returns from sea trials during a maintenance period at Joint Base Pearl Harbor-Hickam, June 6, 2026. Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF) and Colorado’s crew completed the scheduled maintenance period on June 10, 2026, 29 days ahead of schedule, returning to the fleet lethal and ready to defend the nation. Commissioned March 17, 2018, at Naval Submarine Base New London, Colorado is the 15th Virginia-class fast-attack submarine and fifth Block III submarine of the class. Colorado is assigned to Submarine Squadron 7 and is capable of supporting various missions, including anti-submarine warfare; anti-surface ship warfare; strike warfare; special operations forces support; and intelligence, surveillance, and reconnaissance. PHNSY & IMF's mission is to keep the Navy's fleet
June 11, 2026 - Virginia-class fast-attack submarine USS Colorado (SSN 788) completed a scheduled maintenance period at Pearl Harbor Naval Shipyard and Intermediate Maintenance Facility (PHNSY & IMF) 29 days ahead of schedule June 10, 2026.

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