{"nrhp_refnum":"03001464","name":"Bolivia Road Bridge","other_names":["Lanesville Bridge"],"category":"structure","location":{"address":"Axross the North Fork of the Sangamon R.","address_restricted":false,"city":"Bolivia","county":"Sangamon County","state":"IL","lat":39.76932515300007,"lon":-89.34569189899997,"geom_source":"nps_gis"},"listed_date":"2004-01-28","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering"],"significance_levels":["local"],"summary":{"what_it_is":"A one-lane steel truss and I-beam highway bridge, about 622 feet long, crossing the North Fork of the Sangamon River near Bolivia on the Sangamon/Christian county line in Illinois. It was built in 1901 by J.T. Garrett of St. Louis for the Lanesville Road District.","why_significant":"The bridge is significant under Criterion C for engineering as a good local example of a Parker through truss with a pony truss span and steel I-beam approach spans. A 1994 state historic bridge survey counted it among the last seven known bridges of this type in Illinois. It has distinctive ornamentation and a fabricator not linked to other surveyed bridges.","narrative":"Spanning the North Fork of the Sangamon River on the Sangamon and Christian county line, this one-lane bridge near Bolivia, Illinois, was built in 1901 by J.T. Garrett of St. Louis for the Lanesville Road District. It runs 622 feet and combines a ten-panel Parker through truss main span of 180 feet, a shored pony truss span, and nineteen steel I-beam approach spans, all with timber decking. Ornamental grid combs and urn-shaped finials top the portal bracing. Local governments shared the cost, and the structure gave residents north of the river a direct route to the railroad and trade facilities near Bolivia. It was listed for engineering significance. A 1994 Illinois survey identified it as one of the last seven known bridges of its type in the state, noted its distinctive ornamentation, and found its fabricator unconnected to other surveyed bridges. It is also the only original bridge left along a 12-mile stretch of the river.","period_of_significance":"1901","architect_builder":"Garrett, J.T. St. Louis Missouri","architectural_style":"Other: Parker Through Truss Bridge; Pony Truss","criteria":["C"],"status_note":"Still standing with its wooden plank deck and in use for 102 years at the time of the nomination; current function is road-related transportation.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:55:37.349109-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/0/8941/28894100/content/electronic-records/rg-079/NPS_IL/03001464.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/03001464/87dfabdb30-800.webp","url_1600":"https://nationalhistoricalregister.com/media/03001464/87dfabdb30-1600.webp","licence":"CC BY-SA 3.0","author":"Coalfather","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Bolivia_Road_Bridge_looking_north.JPG\" rel=\"noopener\">Coalfather</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:Bolivia_Road_Bridge_looking_north.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/28894100","wikipedia":"https://en.wikipedia.org/wiki/Bolivia_Road_Bridge","wikidata":"https://www.wikidata.org/wiki/Q891369"},"indexable":true,"url":"https://nationalhistoricalregister.com/illinois/sangamon-county/bolivia-road-bridge-03001464/"}