{"nrhp_refnum":"80000799","name":"Hercules Village","other_names":[],"category":"district","location":{"address":"Kings, Railroad, Santa Fe and Hercules Aves., Talley Way, Bay and Pinole Sts.","address_restricted":false,"city":"Hercules","county":"Contra Costa County","state":"CA","lat":38.01804758700007,"lon":-122.29062420746436,"geom_source":"nps_gis"},"listed_date":"1980-08-22","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry"],"significance_levels":["state"],"summary":{"what_it_is":"A historic district of 36 remaining buildings from the former plant village, a company town for explosives workers at Hercules, Contra Costa County, California. It was built from the 1890s onward by the powder companies operating there.","why_significant":"The nomination argues the district is one of the last remaining company towns in California and cannot be separated from the American explosives industry. It preserves the housing, social and administrative buildings of a village that supported what became the world's largest dynamite producer. It is also the only surviving town of the region's earlier explosive manufacturers.","narrative":"Hercules Village is the surviving core of a company town built beside an explosives plant on San Pablo Bay in Contra Costa County. Thirty-six buildings remain, including the Classic Revival main office and laboratory, the 1897 clubhouse, the former guard house and office annex, Queen Anne cottages, many two-story pattern book houses, bungalows, a Masonic lodge and a wharf built in 1902. The village grew from the California Powder Works, which moved here from safer-distance concerns after earlier explosions. Hercules became the world's largest dynamite producer and a major TNT producer in World War I. Housing, a hospital, a club and recreation facilities served employees, and the city incorporated in 1900. The nomination calls it one of California's last company towns and the only remnant of the region's earlier explosives communities. Many homes now stand vacant, and some have been demolished ahead of planned redevelopment.","period_of_significance":null,"architect_builder":null,"architectural_style":"Queen Anne cottages, \"pattern book\" wood frame houses, bungalows, and Classic Revival office and laboratory buildings","criteria":[],"status_note":"Condition is marked deteriorated and fair. Most residential buildings are vacant, vandalized and scheduled for possible demolition. The company buildings on the hill are intact and in use, and the social and utilitarian buildings are vacant but available for re-use.","vacant_flag":true,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:31.483019-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/80000799.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80000799/3cdc0db5bc-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80000799/3cdc0db5bc-1600.webp","licence":"CC BY-SA 3.0","author":"Sanfranman59","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Hercules_Village_(Hercules,_CA).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:Hercules_Village_(Hercules,_CA).JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123858536","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q141632198"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/contra-costa-county/hercules-village-80000799/"}