{"nrhp_refnum":"94000060","name":"Scott Field Historic District","other_names":["Scott Air Force Base Historic District"],"category":"district","location":{"address":"Roughly bounded by Scott Dr. and Hanger Rd.","address_restricted":false,"city":"O'Fallon","county":"St. Clair County","state":"IL","lat":38.541450323500044,"lon":-89.86299910688908,"geom_source":"nps_gis"},"listed_date":"1994-03-10","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Military","Architecture"],"significance_levels":["national"],"summary":{"what_it_is":"A military historic district at Scott Field (now Scott Air Force Base) in Shiloh Township near O'Fallon, St. Clair County, Illinois, covering the original 1917 base layout and the 1937-1940 eastward expansion. It includes 107 contributing and 12 noncontributing resources, mostly buildings.","why_significant":"The form argues that the district retains the layout and design of the 1917-1946 base, with its original grid, housing areas and administrative core. Its Colonial Revival, Georgian and Neo-Classical buildings follow standardized military plans. Because later construction took place mainly outside the original base, the early campus-like character survives. The certifying Air Force official recommends significance at the national level.","narrative":"Scott Field, now Scott Air Force Base, lies about 25 miles east of St. Louis in St. Clair County, Illinois. The historic district preserves the original 1917 base layout and the eastern expansion built between 1937 and 1940. The base was set on level, well-drained land beside a railroad line and was organized on a north-south and east-west grid, with administrative offices, barracks, an industrial area and airfield. Officers' housing was built in the Colonial Housing and Georgian Housing areas, mostly as two-story brick duplexes and triplexes based on standardized Army plans. Administrative buildings such as the Post Headquarters use Neo-Classical and Colonial Revival detailing, including Doric porticos. Service buildings, garages, Hangar No. 1 and recreational facilities complete the group. Because postwar growth occurred mainly west of the original base, the 1917-1946 layout remains intact, with mature oak and maple trees lining the streets. The district contains 107 contributing and 12 noncontributing resources.","period_of_significance":null,"architect_builder":"Captain Clinton Edgar and engineer Albert Kahn devised the standard single-unit base plan; no individual building architects are named in the available text.","architectural_style":"Late 19th and 20th Century Revivals: Colonial Revival/Classical Revival; Modern Movement/Art Deco","criteria":[],"status_note":"The base remains an active Air Force facility. Many historic buildings are still in use, though Facility 2, the old main gate, is now a display area on base history.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:37.698394-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/50/8941/28894150/content/electronic-records/rg-079/NPS_IL/94000060.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/94000060/b4bac9aa68-800.webp","url_1600":"https://nationalhistoricalregister.com/media/94000060/b4bac9aa68-1600.webp","licence":"Public domain","author":"United States Army Air Corps","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Scott_Field_-_1930.jpg\" rel=\"noopener\">United States Army Air Corps</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Scott_Field_-_1930.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28894150","wikipedia":"https://en.wikipedia.org/wiki/Scott_Field_Historic_District","wikidata":"https://www.wikidata.org/wiki/Q17509822"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/st-clair-county/scott-field-historic-district-94000060/"}