{"nrhp_refnum":"80003645","name":"Factory Bridge","other_names":["Horsham Bridge"],"category":"structure","location":{"address":"1 mi. W of White Deer on T 629, White Deer Township","address_restricted":false,"city":"White Deer","county":"Union County","state":"PA","lat":41.07367695700003,"lon":-76.90297879099995,"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 single-span covered bridge over White Deer Creek in White Deer Township, Union County, Pennsylvania, about one mile from the village of West Deer. It is 60 feet long with a 16-foot roadbed.","why_significant":"The nomination ties the bridge to a former woolens mill nearby that took its power from the creek and gave the bridge its name. It is described as the only remaining covered bridge on White Deer Creek. The form also cites its multiple King and Queen truss construction as a notable engineering type.","narrative":"Built in 1880, the Factory Bridge is a single-span covered bridge of 60 feet that crosses White Deer Creek in White Deer Township, about a mile from the village of West Deer in Union County. It has a combination of multiple King and Queen trusses and a roadbed 16 feet wide. The bridge takes its name from a woolens mill that once stood nearby and drew its water power from the creek. That mill burned about a century before the nomination was prepared, but a cluster of houses remains a short distance away on the old White Deer Turnpike. The bridge was repaired in 1954 and again in 1976, and it is in good condition after recent painting. Its significance rests on its engineering, its trusswork, and its connection to the local industrial history of White Deer Creek. It is also the only surviving covered bridge on that stream.","period_of_significance":"1800-1899","architect_builder":null,"architectural_style":"Combination multiple King and Queen truss covered bridge","criteria":[],"status_note":"In good condition, repaired in 1954 and 1976, and recently painted.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.94107-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/80003645.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80003645/3da74d3539-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80003645/3da74d3539-1600.webp","licence":"CC BY-SA 3.0","author":"Ruhrfisch","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Factory_Covered_Bridge_1.JPG\" rel=\"noopener\">Ruhrfisch</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:Factory_Covered_Bridge_1.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993907","wikipedia":"https://en.wikipedia.org/wiki/Factory_Bridge","wikidata":"https://www.wikidata.org/wiki/Q5428764"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/union-county/factory-bridge-80003645/"}