{"nrhp_refnum":"78002060","name":"John Bright No. 1 Iron Bridge","other_names":[],"category":"structure","location":{"address":"2 mi. (3.2 km) NE of Carroll on Havensport Rd.","address_restricted":false,"city":"Carroll","county":"Fairfield County","state":"OH","lat":39.82933824600008,"lon":-82.67418344499998,"geom_source":"nps_gis"},"listed_date":"1978-09-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Transportation"],"significance_levels":["state"],"summary":{"what_it_is":"A one-span steel eye-bar suspension bridge carrying Havensport Road (township road 263) over Poplar Creek, about 2 miles northeast of Carroll in Liberty Township, Fairfield County, Ohio. It was built by the Hocking Valley Bridge Works, probably in the 1880s.","why_significant":"The nomination argues the bridge is an outstanding and unusual example of early steel bridge design in Ohio, with no other like it found in the state. It is tied to August Borneman, proprietor of the Hocking Valley Bridge Works, a bridge builder and inventor. Its construction resembles the nearby John Bright #02 Covered Bridge.","narrative":"Carrying Havensport Road over Poplar Creek northeast of Carroll, this single-span steel eye-bar suspension bridge measures 90 feet overall, with an 88-foot clear span. It was built by the Hocking Valley Bridge Works of Lancaster, probably in the 1880s, using Carnegie steel. Box-beam verticals hang from eye-bar rods, crossed tension rods with turnbuckles brace the structure, and cut-stone abutments support it. Ornamental urns top the end posts, and lacy ironwork trims the portals. The bridge sits near the John Bright #02 Covered Bridge, built in 1881 by August Borneman, proprietor of the bridge works, and the similar construction suggests he was still there when the steel bridge went up. Borneman held patents for farm machinery and bridge components. The nomination considers the bridge possibly an experimental design, since no other like it has been found in Ohio, and it values it as an early steel bridge and an example of Borneman's creativity. The road itself opened in 1831 to reach the Ohio and Erie Canal.","period_of_significance":"1800-1899","architect_builder":"Hocking Valley Bridge Works","architectural_style":null,"criteria":[],"status_note":"Condition listed as fair; the bridge has changed little, was recently painted with aluminum paint, and has an asphalt-covered floor and a later wooden support under the center.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:09.823592-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/78002060.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/78002060/e9c40bec3b-800.webp","url_1600":"https://nationalhistoricalregister.com/media/78002060/e9c40bec3b-1600.webp","licence":"CC BY-SA 4.0","author":"Jud McCranie","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:John_Bright_bridge_number_1,_Fairfield_Co,_Ohio,_US.jpg\" rel=\"noopener\">Jud McCranie</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:John_Bright_bridge_number_1,_Fairfield_Co,_Ohio,_US.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71988241","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q82751389"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/fairfield-county/john-bright-no-1-iron-bridge-78002060/"}