{"nrhp_refnum":"12000425","name":"Hunters Point Commercial Drydock Historic District","other_names":["U.S. Naval Shipyard, Hunters Point","San Francisco Naval Shipyard"],"category":"district","location":{"address":"E. of jct. of Fisher Ave. & Robinson Dr.","address_restricted":false,"city":"San Francisco","county":"San Francisco","state":"CA","lat":37.729138791000054,"lon":-122.35908465195146,"geom_source":"nps_gis"},"listed_date":"2012-07-25","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Industry","Engineering","Architecture"],"significance_levels":["state"],"summary":{"what_it_is":"A historic district at the easternmost point of the former Hunters Point Naval Shipyard in San Francisco, made up of two concrete drydocks and four associated pump and utility buildings built between 1901 and 1939.","why_significant":"The nomination presents the district as a surviving commercial drydock complex showing early twentieth-century drydock engineering. It shows the shift from steam-powered pumping (Building 205) to a fully electric pumping plant (Building 140). The buildings are mostly in the Neoclassical Revival style, with one utilitarian structure.","narrative":"At the eastern tip of the former Hunters Point Naval Shipyard in San Francisco, two parallel concrete drydocks and several support buildings make up a surviving early twentieth-century ship repair complex. Drydock 2, built 1901-1903, is 750 feet long; Drydock 3, built 1916-1918, is 1,005 feet long. Between and beside them stand pump houses and related buildings, mostly of brick with gable roofs and Neoclassical Revival details such as pilasters, half-round arches and modillioned cornices. Building 205 housed steam-driven pumping equipment for the earlier drydocks, while Building 140, designed by engineer Howard C. Holmes, held electric motors driving six centrifugal pumps made by Byron-Jackson Iron Works. Together they show the technological change between the two construction periods. Six resources contribute to the district, including a utilitarian 1930s latrine. Later Navy-era capstans, crane tracks and bollards have been heavily altered and do not contribute. The drydocks are now non-operational.","period_of_significance":null,"architect_builder":"Howard C. Holmes (engineer who designed Drydock 3 and its pumping plant); Byron-Jackson Iron Works of San Francisco (pump manufacturer)","architectural_style":"Neoclassical Revival","criteria":[],"status_note":"Current function listed as non-operational; Drydocks 2 and 3 are open to the bay and filled with water, and Building 140 has plywood-covered openings and a flooded pump pit.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:29.653001-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/12000425.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/12000425/7e82ad54d7-800.webp","url_1600":"https://nationalhistoricalregister.com/media/12000425/7e82ad54d7-1600.webp","licence":"CC BY-SA 3.0","author":"Sanfranman59","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Hunters_Point_Commercial_Drydock_Historic_District,_San_Francisco,_CA_11-4-2012_4-56-40_PM.JPG\" rel=\"noopener\">Sanfranman59</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Hunters_Point_Commercial_Drydock_Historic_District,_San_Francisco,_CA_11-4-2012_4-56-40_PM.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123861175","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q115543936"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-francisco/hunters-point-commercial-drydock-historic-district-12000425/"}