{"nrhp_refnum":"80003644","name":"Millmont Red Bridge","other_names":[],"category":"structure","location":{"address":"SW of Millmont on LR 59005, Hartley Township","address_restricted":false,"city":"Millmont","county":"Union County","state":"PA","lat":40.87826363700003,"lon":-77.15549190199994,"geom_source":"nps_gis"},"listed_date":"1980-02-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Transportation"],"significance_levels":["local"],"summary":{"what_it_is":"A covered bridge crossing Penns Creek about a mile west of Millmont in Union County, Pennsylvania. The form dates it to 1855 and describes it as the only covered bridge crossing this stream in Union County.","why_significant":"The nomination argues the bridge is significant as a surviving 1855 covered bridge and as a transportation resource tied to early twentieth-century lumbering and milling in the area. It is also described as significant for its engineering type, a white pine Burr arch. The form notes its continued use as a local historic site for school and tour trips.","narrative":"A white pine covered bridge with a Burr type arch spans Penns Creek about a mile west of Millmont in Union County, Pennsylvania. Dating from 1855, it has a span of 131 feet and a roadway 14 feet wide, and it has been restored several times, most recently in 1958. It connected a dirt road with a paved county road and served the lumbering and milling operations that increased population and commercial activity in the neighborhood in the early twentieth century. County commissioners kept the bridge rather than removing it, building a separate bridge one mile east instead. A weight limit of three tons was later imposed, and the bridge was closed to vehicles after a steel-concrete bridge opened nearby in 1976. Visitors can walk across the span and wade in the creek below. Its roof, sides, and masonry are described as in good repair, and the surrounding area is rural and wooded. It is regarded as an important surviving example of its type in the county.","period_of_significance":"1855","architect_builder":null,"architectural_style":"Burr type arch covered bridge","criteria":[],"status_note":"Closed to vehicles after a nearby steel-concrete bridge opened in 1976; pedestrians may walk across it.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.198029-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/80003644.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80003644/3f0a503221-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80003644/3f0a503221-1600.webp","licence":"CC BY-SA 4.0","author":"Ruhrfisch (talk)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Millmont_Red_Bridge_14.jpg\" rel=\"noopener\">Ruhrfisch (talk)</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:Millmont_Red_Bridge_14.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993903","wikipedia":"https://en.wikipedia.org/wiki/Millmont_Red_Bridge","wikidata":"https://www.wikidata.org/wiki/Q12061815"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/union-county/millmont-red-bridge-80003644/"}