{"id":64135,"date":"2023-01-27T19:14:31","date_gmt":"2023-01-27T19:14:31","guid":{"rendered":"https:\/\/one.sightlinemg.com\/defensenews\/uncategorized\/2023\/01\/27\/us-navy-suspends-work-at-four-west-coast-dry-docks-over-seismic-risks\/"},"modified":"2026-08-08T00:47:50","modified_gmt":"2026-08-08T00:47:50","slug":"us-navy-suspends-work-at-four-west-coast-dry-docks-over-seismic-risks","status":"publish","type":"post","link":"https:\/\/one.sightlinemg.com\/defensenews\/naval\/2023\/01\/27\/us-navy-suspends-work-at-four-west-coast-dry-docks-over-seismic-risks\/","title":{"rendered":"US Navy suspends work at four West Coast dry docks over seismic risks"},"content":{"rendered":"\n

WASHINGTON \u2014 The U.S. Navy will immediately suspend submarine repair work at four dry docks in Washington state, following new concerns about their ability to withstand seismic activity, service leaders told Defense News.<\/p>\n\n\n\n

The Navy identified new concerns related to dry docks 4, 5 and 6 at Puget Sound Naval Shipyard as well as the dry dock at Trident Refit Facility Bangor, two service officials told Defense News on Thursday.<\/p>\n\n\n\n

They stressed there is \u201cno immediate risk\u201d and that this step is strictly preventative, allowing a team of more than 100 experts to more fully study the four dry docks and better understand what mitigation steps are required for longer-term safety.<\/p>\n\n\n\n

All four dry docks are currently empty and do not have any imminent submarine maintenance availabilities planned, the officials said. The team has the support of Navy leadership to move as quickly and safely as possible to get the dry docks operational again and minimize the impact to the fleet.<\/p>\n\n\n\n

This disruption comes at a time when the submarine force is already strained \u2014 18 attack submarines fleetwide are in a maintenance period or pierside waiting to enter one<\/a>, nearly double the number of subs that should be sidelined for maintenance, per Navy scheduling assumptions.<\/p>\n\n\n\n

Puget Sound Naval Shipyard is the primary location for attack submarine and aircraft carrier maintenance on the West Coast. Trident Refit Facility Bangor tends to the West Coast ballistic missile submarine fleet.<\/p>\n\n\n\n

The Navy routinely conducts seismic risk assessments on all ashore facilities in earthquake-prone areas. The service has previously performed several of these assessments at Puget Sound and took corrective actions based on the results.<\/p>\n\n\n\n

This time, however, more modern scientific techniques and technologies cued the Navy to concerns of which they were previously unaware. So-called Level 1 and Level 2 seismic events \u201ccould potentially cause dry dock structural failures that pose a risk to our sailors and workforce and damage to our submarines,\u201d an official explained.<\/p>\n\n\n\n

\"\"
The U.S. Navy aircraft carrier Nimitz is seen in Dry Dock 6 after dewatering at Puget Sound Naval Shipyard and Intermediate Maintenance Facility in Bremerton, Wash., on March 5, 2018. (Thiep Van Nguyen II\/U.S. Navy)<\/figcaption><\/figure>\n\n\n\n

Naval Facilities Engineering Systems Command and other commands conducted this study last year \u201cwith a goal of better modeling of potential outcomes of several types of major earthquakes,\u201d one official said. The firm WSP USA conducted the engineering analysis and submitted its findings in late October, identifying \u201cpotential dry dock failure during a seismic event and the necessity to postpone docking submarines in the four affected locations as safety of the shipyard workers, the surrounding community, preservation of the environment are of utmost concern to the Navy.\u201d<\/p>\n\n\n\n

Since October, \u201cshort-term mitigations have been put in place, and it\u2019s really important here that these were proactive steps taken in order to ensure the safety of our sailors, shipyard workforce, the public and the environment,\u201d another official said.<\/p>\n\n\n\n

The effort culminated in the decision, announced to the Puget Sound and Bangor workforce Friday, to cease operations at these four dry docks until further assessment and mitigation takes place.<\/p>\n\n\n\n

The officials said all the dry docks in the area were built at different times and under different Navy construction codes. Other dry docks at the yard will remain active, including Dry Dock 2, which is currently working on the guided-missile submarine Ohio.<\/p>\n\n\n\n

An official said the concern over these four particular dry docks is directly tied to the nature of their design and construction.<\/p>\n\n\n\n

\"\"
Vice Adm. William Galinis, the head of Naval Sea Systems Command, visited Puget Sound Naval Shipyard and Intermediate Maintenance Facility on April 23, 2021, to learn about the status of maintenance availabilities and discuss process improvement and transformation efforts. (Kenneth Takada\/U.S. Navy)<\/figcaption><\/figure>\n\n\n\n

As for next steps \u2014 as well as potential timelines and costs associated with the mitigation work \u2014 an official said that \u201cit\u2019s too early to tell.\u201d<\/p>\n\n\n\n

\u201cWe\u2019ve been asked and tasked this week to come up with mitigations to put in place to address some of the concerns the seismic study has put in place. But at this stage it\u2019s just too early to tell\u201d what will come of the discussions, the official explained.<\/p>\n\n\n\n

The official added that more than 100 experts from the Navy, the Defense Department and private industry have gathered to look at the dry docks, put forward a range of mitigation proposals and select the right ones to pursue.<\/p>\n\n\n\n

Given the top-level support, an official said, current-year money will be found to immediately fund these projects, rather than waiting to insert them into future budget year plans.<\/p>\n\n\n\n

The officials also noted that \u201cthe shipyard\u2019s workforce size and workload demands will not change because of these temporary measures,\u201d largely because there aren\u2019t any dry docking availabilities getting canceled or delayed in the near term.<\/p>\n\n\n\n

Puget Sound Naval Shipyard and Trident Refit Facility Bangor \u201care working with the fleet to mitigate impacts to ship schedules. The work packages for each availability are being evaluated and structured to continue work pier-side when possible. As our mitigation plan moves forward, we will have a better understanding of future impacts to availabilities,\u201d an official said.<\/p>\n","protected":false},"excerpt":{"rendered":"

Three dry docks at Puget Sound Naval Shipyard and one at Trident Refit Facility Bangor will close immediately to allow for more study and mitigation 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