{"nrhp_refnum":"75002103","name":"Mare Island Naval Shipyard","other_names":[],"category":"district","location":{"address":"Mare Island","address_restricted":false,"city":"Vallejo","county":"Solano County","state":"CA","lat":38.09257269112564,"lon":-122.26709339949187,"geom_source":"nps_gis"},"listed_date":"1975-05-15","is_nhl":true,"nhl_designated_date":"1975-05-15","areas_of_significance":["Military","Invention"],"significance_levels":["national"],"summary":{"what_it_is":"Mare Island Naval Shipyard is a historic military district in Vallejo, Solano County, California, founded in 1854 as the U.S. Navy's first permanent Pacific coast installation. The nominated district is four separate areas totaling about 150 acres within a much larger working shipyard.","why_significant":"The shipyard was the Navy's first permanent Pacific coast base and until 1891 had the only U.S. ship repair facilities on that coast. It built the first U.S. warship (1859) and the first drydock (1872-91) on the Pacific shore, and later converted the Navy's first oil-burning ship and built nuclear submarines. Its surviving shops, quarters, chapel, magazines and cemetery document each stage of that history.","narrative":"Mare Island Naval Shipyard, in Vallejo, California, was established in September 1854 as the U.S. Navy's first permanent installation on the Pacific coast. The nominated district is made up of four areas covering about 150 acres of a much larger working yard. Area A holds the earliest brick shops, the 1855 administration building, the Steam Engineering Complex and Foundry of 1858, steel coal sheds of about 1900, Drydock 1, officers' quarters along Walnut Avenue and Saint Peter's Chapel. Area B has stone and brick powder magazines and a base cemetery established in 1856. Area C includes the 1889 hospital, a stable and Marine officers' quarters, and Area D has four relocated 1888 officers' residences. The yard is significant for naval firsts on the Pacific: the first warship built there in 1859, the first drydock, the Navy's first oil-burning conversion, and later nuclear submarines. It also turned out nearly 400 ships in World War II.","period_of_significance":"1854-1974","architect_builder":"Albert Sutton (designer of Saint Peter's Chapel)","architectural_style":null,"criteria":[],"status_note":"Shipyard in continuous operation since 1854; condition rated good and altered; many historic buildings are reused by tenant commands, though the Area B munitions storage facilities are vacant.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:31.65406-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/75002103_NHL.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/75002103/45b53b4b44-800.webp","url_1600":"https://nationalhistoricalregister.com/media/75002103/45b53b4b44-1600.webp","licence":"Public domain","author":null,"credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:USS_Wadleigh_(DD-689)_at_the_Mare_Island_Naval_Shipyard,_California_(USA),_on_10_April_1945_(NH_98906).jpg\" rel=\"noopener\">Unknown author</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:USS_Wadleigh_(DD-689)_at_the_Mare_Island_Naval_Shipyard,_California_(USA),_on_10_April_1945_(NH_98906).jpg"},"district":{"nrhp_refnum":"96001058","name":"Mare Island Historic District(Boundary Increase)","url":"https://nationalhistoricalregister.com/districts/california/mare-island-historic-district-boundary-increase-96001058/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123858111","wikipedia":"https://en.wikipedia.org/wiki/Mare_Island_Naval_Shipyard","wikidata":"https://www.wikidata.org/wiki/Q657784"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/solano-county/mare-island-naval-shipyard-75002103/"}