Mare Island Naval Shipyard

Mare Island Naval Shipyard. Established in 1854 under the command of Commander David G. Farragut, it was the first United States Navy shipyard on the West Coast of the United States. For over 140 years, it served as a critical hub for naval construction, repair, and logistics, playing pivotal roles in conflicts from the American Civil War through the Cold War. Its strategic location on San Pablo Bay in Northern California made it a cornerstone of Pacific Fleet operations.

History

The shipyard's origins trace to 1854, when the United States Department of the Navy acquired Mare Island following the California Gold Rush to establish a Pacific naval presence. Under Farragut's leadership, the yard built its first ship, the USS *Saginaw*, launching in 1859. During the American Civil War, it was vital for maintaining Union Navy vessels in the Pacific. The facility expanded dramatically during the Spanish–American War and World War I, constructing destroyers and submarines. Its most significant growth occurred during World War II, when it became one of the nation's premier shipbuilding centers, employing over 40,000 workers and constructing numerous battleships, aircraft carriers like the USS *Shangri-La*, and submarines. Post-war, it transitioned to supporting the Cold War fleet, specializing in nuclear submarine overhaul and maintenance until its closure.

Operations and facilities

The shipyard encompassed over 5,000 acres with extensive industrial infrastructure, including one of the largest dry docks on the West Coast, multiple shipways, and a massive industrial railway system. Its foundries, machine shops, and electroplating facilities could manufacture nearly any component. A key operational focus was submarine support, featuring specialized facilities for naval reactor servicing and weapons system integration. The yard also housed the Mare Island Naval Hospital and a major Naval Supply Depot, forming a self-sufficient complex. It worked closely with other installations like Naval Weapons Station Seal Beach and Puget Sound Naval Shipyard to sustain United States Pacific Fleet readiness.

Notable ships built or serviced

Mare Island built over 500 vessels, including many firsts and famous warships. It launched the first Pacific-built monitor, the USS *Camanche*, and the first American dreadnought built on the West Coast, the USS *California*. Notable World War II constructions include the battleship USS *Nevada*, rebuilt after the Attack on Pearl Harbor, and the aircraft carrier USS *Independence*. It was instrumental in building *Gato*-class and *Balao*-class submarines. Post-war, it serviced nuclear-powered vessels like the USS *Nautilus* and USS *Parche*, the latter famed for Operation Ivy Bells.

Closure and legacy

Selected for closure by the Base Realignment and Closure Commission in 1993, the shipyard ended operations in 1996, transferring its final nuclear submarine work to Puget Sound Naval Shipyard. The closure significantly impacted the economy of Vallejo. The site is now a multi-use area known as Mare Island, housing businesses, the Mare Island Historic Park, and the Mare Island Naval Cemetery. Many historic structures, including the St. Peter's Chapel with its Tiffany glass windows and the Admiral's Mansion, are preserved. The shipyard's contributions are commemorated at the Vallejo Naval and Historical Museum and the San Francisco Maritime National Historical Park.

Environmental impact and cleanup

Long-term industrial operations left significant contamination, including PCBs, heavy metals, and solvents in soil and groundwater. The cleanup, overseen by the United States Environmental Protection Agency under the Comprehensive Environmental Response, Compensation, and Liability Act (Superfund), is managed by the Navy Base Closure and Environmental Services office. Major efforts have included dredging of offshore sediments, soil remediation, and groundwater treatment. The California Department of Toxic Substances Control and the San Francisco Bay Regional Water Quality Control Board are key regulatory partners. Ongoing monitoring and restoration work aim to enable safe redevelopment while protecting San Pablo Bay ecosystems.

Category:Closed facilities of the United States Navy Category:Shipyards in California Category:History of Solano County, California