Mare Island Dry Dock closes

On Dec. 30, 2025, California ship repairer Mare Island Dry Dock LLC (MIDD) informed the City of Vallejo that it would permanently close its Mare Island facility, resulting in the termination of all employees over the coming days.

Located on an 18 acre site on Mare Island (where the Mare Island Naval Shipyard operated from 1854 untiil its closure in 1996), MIDD’s main facilities include the 720 x 98 foot Dry Dock 2 and the 680 x 90.5 foot Dry Dock 3, both of which are active concrete graving docks with the larges

The city notes that the company, providing repair services to the maritime industry since 2013, employed more than 80 full-time union and non-union staff. The company, says the city, has been a significant contributor to the local economy, supporting jobs and generating economic activity for Vallejo, Solano County, and the surrounding region.

The city cites MIDD as saying that the closure stems from unforeseen business circumstances, including the loss of a critical U.S. Coast Guard contract that had an immediate and material impact on the company’s financial stability. Despite efforts to secure additional financing and contracts, MIDD determined that continuing operations was no longer viable.

MIDD has committed to working with local agencies to assist affected employees. In response, the City of Vallejo has coordinated with the Solano County Workforce Development Board to ensure workers have timely access to job search assistance, retraining programs, and other resources. david hubble, president and executive director of the Workforce Development Board, and his team are actively coordinating support for impacted employees.

The City of Vallejo says that it is committed to helping displaced workers transition to new opportunities. The City is also deeply committed to expanding maritime and other commercial activities and job opportunities on Mare Island. The vity recently engaged a consultant to attract new federal funding and other investment to expand shipbuilding and ship repair on Mare Island and reinvigorate Vallejo’s waterfront. This effort is expected to create future opportunities on Mare Island and help return skilled workers to the local maritime industry.

In a posting on its website, Mare Island Dry Dock LLC says:

After 12 incredible years, the difficult decision was made to close the doors at Mare Island Dry Dock due to unfortunate circumstances beyond our control.

This company was built on hard work, long days, problem-solving, and a deep commitment to getting the job done right. Along the way, we were fortunate to work with an amazing group of employees, customers, vendors, and friends who believed in us and supported what we were building. You became more than business contacts — you became part of our story.

The outpouring of support from the community on social media has been truly overwhelming and deeply appreciated. Your kind words, messages, and shared memories have meant more to us than we can express.

We are truly grateful for the relationships, memories, and trust you shared with us over the years. Thank you for being part of our journey and allowing us to be part of yours.

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