{"nrhp_refnum":"69000200","name":"U.S. San Antonio Arsenal","other_names":[],"category":"building","location":{"address":"Roughly bounded by S. Flores and E. Arsenal Sts., and the San Antonio River","address_restricted":false,"city":"San Antonio","county":"Bexar County","state":"TX","lat":29.408025893000058,"lon":-98.4959541780788,"geom_source":"nps_gis"},"listed_date":"1969-12-30","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Military"],"significance_levels":["state"],"summary":{"what_it_is":"A 20-acre military arsenal complex in San Antonio, Bexar County, Texas, established in 1859 and bounded by S. Flores St., E. Arsenal St., the San Antonio River and private property. Six main buildings remain: an office building, commanding officer's quarters, servants quarters, a stable, a magazine and a storehouse.","why_significant":"The arsenal was an important military post from 1859 until 1949, serving as an ordnance storage and supply depot. It supplied Confederate forces during the Civil War, was the chief supply source for Western frontier troops afterward, and handled huge ammunition volumes in both world wars. The nomination says it helped make San Antonio one of the largest military cities in the country.","narrative":"San Antonio Arsenal is a 20-acre military complex beside the San Antonio River, established in 1859 after Senator Jefferson Davis and others secured the Texas site. Six main buildings survive: an office building begun in 1858 and finished in 1860, a limestone magazine, a commanding officer's quarters built about 1883 in Italianate style, servants quarters from the earlier Devine homestead, a stable from about 1873, and a storehouse built in 1883. General David Twiggs was its first commander. During the Civil War the Confederacy used the base to outfit troops in the lower Rio Grande Valley, the frontier forts and the Sibley Brigade, and afterward it became the chief supply source for Western frontier troops. It served as a supply depot in both world wars, receiving over 428 million pounds of ammunition from 1941 to 1945. Thirty-eight buildings stood in 1919, but only six remain. The government closed the arsenal in 1949 yet still uses the buildings as offices.","period_of_significance":"19th Century; specific date 1859 (the later 2000 documentation concerns a period of significance expansion, with no dates legible)","architect_builder":"Major J. H. Kampman, local builder and contractor, completed the magazine for the Confederate Army","architectural_style":"Italianate details on the commanding officer's quarters (ca. 1883); other buildings are simple limestone masonry structures","criteria":[],"status_note":"Condition marked deteriorated and altered; the government closed the arsenal in 1949 but still uses the buildings for government offices. Later twentieth century structures nearly conceal the stable and magazine.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:19.228609-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/83/9712/40971283/content/electronic-records/rg-079/NPS_TX/69000200.pdf"},"photo":null,"district":{"nrhp_refnum":"84000026","name":"South Alamo Street-South Mary's Street Historic District","url":"https://nationalhistoricalregister.com/districts/texas/south-alamo-street-south-marys-street-historic-district-84000026/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40971283","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q109999641"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/bexar-county/u-s-san-antonio-arsenal-69000200/"}