{"nrhp_refnum":"06000747","name":"Clarkton Bridge","other_names":["019-0086"],"category":"structure","location":{"address":"VA 620 over the Staunton R","address_restricted":false,"city":"Nathalie","county":"Charlotte County","state":"VA","lat":36.98055907400004,"lon":-78.89260928899995,"geom_source":"nps_gis"},"listed_date":"2007-01-26","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering"],"significance_levels":["local"],"summary":{"what_it_is":"A steel Pratt (Camelback) through truss highway bridge carrying Route 620 over the Staunton River near Nathalie, between Charlotte and Halifax Counties, Virginia, built in 1902 by the Virginia Bridge & Iron Company of Roanoke.","why_significant":"The nomination argues the bridge embodies late 19th and early 20th-century bridge engineering under Criterion C. Its polygonal-chord Parker/Camelback truss shows efficient use of steel for long spans. It is described as the only remaining metal truss highway structure in Virginia supported by steel cylinder piers.","narrative":"Spanning the Staunton River between Charlotte and Halifax Counties, this 692-foot steel bridge carried Route 620 traffic from 1902 until its closure in 1998. It has two 150-foot pin-connected Camelback through trusses, a variation of the Parker truss, plus twelve steel deck approach spans. The trusses rest on two piers made of riveted steel cylinders, one in the middle of the river and one on the bank. County officials and the Norfolk and Western Railway funded the structure, and the Virginia Bridge & Iron Company of Roanoke built it. A flood damaged the first construction in 1901-1902, and the rebuilt bridge passed a load test before acceptance. Later work included floor repairs in 1940 and a 2005 rehabilitation for pedestrian use. It was listed because it is the only surviving metal truss highway bridge in Virginia supported by steel cylinder piers, a common practice around 1900, and it retains its original engineering character.","period_of_significance":"1902-1950","architect_builder":"Virginia Bridge & Iron Company, Roanoke, Virginia","architectural_style":"Other: Pratt through truss","criteria":["C"],"status_note":"Closed to vehicles in 1998 due to deterioration; rehabilitated in 2005 for non-vehicular use with deck repairs, pier reinforcement and a pedestrian railing.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:52:02.711532-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/71/6800/41680071/content/electronic-records/rg-079/NPS_VA/06000747.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/06000747/a72d617421-800.webp","url_1600":"https://nationalhistoricalregister.com/media/06000747/a72d617421-1600.webp","licence":"Public domain","author":"Bruce A. Harms","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Clarkton_Bridge.jpg\" rel=\"noopener\">Bruce A. Harms</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Clarkton_Bridge.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/41680071","wikipedia":"https://en.wikipedia.org/wiki/Clarkton_Bridge","wikidata":"https://www.wikidata.org/wiki/Q14712179"},"indexable":true,"url":"https://nationalhistoricalregister.com/virginia/charlotte-county/clarkton-bridge-06000747/"}