{"nrhp_refnum":"80001361","name":"Buckeye Bridge","other_names":[],"category":"structure","location":{"address":"Spans Spoon River","address_restricted":false,"city":"Smithfield","county":"Fulton County","state":"IL","lat":40.531859766000025,"lon":-90.31125265799994,"geom_source":"nps_gis"},"listed_date":"1980-10-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Transportation"],"significance_levels":["state"],"summary":{"what_it_is":"A single-span steel Parker through truss bridge, built in 1910, carrying Township Road 209 over the Spoon River in Cass Township near Smithfield, Fulton County, Illinois. It is also known as White's Ferry Bridge.","why_significant":"It is one of a group of surviving metal truss highway bridges (1883-1915) over the Spoon River in Fulton County, nominated as a thematic collection. The group reflects the improvement of the county's highway system as older ferries and iron bridges gave way to steel trusses. The state-level review described the collection as good examples of late 19th and early 20th century metal truss bridges of regional significance that retain their historic integrity.","narrative":"Buckeye Bridge, also called White's Ferry Bridge, carries Township Road 209 over the Spoon River in Cass Township, near Smithfield in Fulton County, Illinois. Built in 1910, it is a single-span steel Parker through truss with pin-connected members. The diagonals and bottom chord are made of double eye bars, and the roadway has a wooden deck. Concrete-faced stone abutments rest on steel caisson piles. The bridge is one of several surviving metal truss bridges over the Spoon River, built between 1883 and 1915, that were grouped into a single thematic listing. Together they show how the county's highway network improved as ferries and older iron bridges were replaced by steel trusses able to handle heavier traffic. The group also illustrates changes in steel bridge construction over about thirty-five years. Reviewers judged the collection regionally significant and noted that the bridges remain largely unaltered and retain their historic integrity.","period_of_significance":null,"architect_builder":null,"architectural_style":"Parker through truss","criteria":[],"status_note":null,"vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:35.568794-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/34/8911/28891134/content/electronic-records/rg-079/NPS_IL/80001361.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80001361/245ec61795-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80001361/245ec61795-1600.webp","licence":"Public domain","author":"Historic American Engineering Record","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Whites-ferry_or-buckeye_fulton-co-il_bridge.jpg\" rel=\"noopener\">Historic American Engineering Record</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Whites-ferry_or-buckeye_fulton-co-il_bridge.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28891134","wikipedia":"https://en.wikipedia.org/wiki/Buckeye_Bridge","wikidata":"https://www.wikidata.org/wiki/Q4983059"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/fulton-county/buckeye-bridge-80001361/"}