{"nrhp_refnum":"76001553","name":"Swartz Covered Bridge","other_names":[],"category":"structure","location":{"address":"NW of Wyandot on SR 130A","address_restricted":false,"city":"Wyandot","county":"Wyandot County","state":"OH","lat":40.77070813600005,"lon":-83.16917053199995,"geom_source":"nps_gis"},"listed_date":"1976-10-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering"],"significance_levels":["state"],"summary":{"what_it_is":"A one-span wooden Howe truss covered bridge carrying County Road 130A over the Sandusky River, five miles east of Harpster in Antrim Township, Wyandot County, Ohio. Signs on the portals say it was built in 1880.","why_significant":"The nomination presents the bridge as a fine example of the Howe truss, which combined wooden members with iron tension rods and marked the beginning of the end of the all-wooden truss. The Howe truss was still popular in Ohio about 40 years after its patent and was the most common truss for covered bridges in Wyandot County. The bridge is also one of the few covered bridges in this part of the state.","narrative":"Spanning the Sandusky River five miles east of Harpster, this one-span wooden covered bridge carries County Road 130A in Antrim Township, Wyandot County. Portal signs date it to 1880 and name it for a nearby family. It is a nine-panel Howe truss, about 108 feet long, with vertical siding, projecting portals, a cedar shingle roof and a stone south abutment paired with a concrete north abutment. The Howe design, patented in 1840, used iron tension rods with turnbuckles as truss verticals, an early step away from all-wood construction. The truss was still widely built in Ohio four decades after its patent and was the most common type among the county's covered bridges. Vandals stripped the siding in 1966, so new siding and roofing were installed, and a fire attempt in 1975 caused little damage. Local residents wanted it preserved, and it is one of few covered bridges in the area.","period_of_significance":"1800-1899","architect_builder":null,"architectural_style":"Howe truss covered bridge","criteria":[],"status_note":"Described as well cared for by the county; new siding was added after vandalism in 1966, and floor repairs were planned for 1976. The form lists the bridge as in good condition and altered, with the original site retained.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:10.310218-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/76001553.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/76001553/eb61437fbc-800.webp","url_1600":"https://nationalhistoricalregister.com/media/76001553/eb61437fbc-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Swartz_Covered_Bridge.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Swartz_Covered_Bridge.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71992074","wikipedia":"https://en.wikipedia.org/wiki/Swartz_Covered_Bridge","wikidata":"https://www.wikidata.org/wiki/Q1295241"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/wyandot-county/swartz-covered-bridge-76001553/"}