{"nrhp_refnum":"80003541","name":"Baumgardner's Mill Covered Bridge","other_names":[],"category":"structure","location":{"address":"SW of Willow Street on T 425, Pequea/Mantic Townships","address_restricted":false,"city":"Willow Street","county":"Lancaster County","state":"PA","lat":39.93062815500008,"lon":-76.29518025499993,"geom_source":"nps_gis"},"listed_date":"1980-12-11","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Transportation"],"significance_levels":["state"],"summary":{"what_it_is":"A covered bridge over Pequea Creek on Willow Street in Pequea and Martic Townships, Lancaster County, Pennsylvania, built in 1860 with a Burr truss. It is one of the covered bridges listed as part of the Covered Bridges of Lancaster County thematic group.","why_significant":"The form identifies the bridge as a representative example of 19th-century wood-frame covered bridge construction in Lancaster County. It is noted for its vertical board and batten siding, portals, and large abutments, and its trusses are described as being in good condition.","narrative":"Built in 1860 over Pequea Creek on Willow Street, Baumgardner's Mill Covered Bridge carries traffic between Pequea and Martic Townships in Lancaster County, Pennsylvania. It is a Burr truss bridge, a wooden structure type widely used in the 19th century. The bridge is sheathed in vertical board and batten siding and has portals at each end and large stone abutments that support it. Its end post length is recorded as 111 feet. The bridge was evaluated as one of several covered bridges in the county that illustrate wood-frame construction of that era. Reviewers noted that its trusses were in good condition, although the boundaries needed to be adjusted to take in the full abutments. The bridge was included as part of a group of Lancaster County covered bridges that were evaluated together. Its importance rests on its survival as a complete example of this building tradition in the region.","period_of_significance":null,"architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Condition recorded as good.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.539488-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/80003541.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80003541/15c9211094-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80003541/15c9211094-1600.webp","licence":"CC BY-SA 2.5","author":"Photo by and (c)2006 Derek Ramsey (Ram-Man)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Baumgardener%27s_Covered_Bridge_Side_View_3008px.JPG\" rel=\"noopener\">Photo by and (c)2006 Derek Ramsey (Ram-Man)</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.5\" rel=\"license noopener\">CC BY-SA 2.5</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Baumgardener%27s_Covered_Bridge_Side_View_3008px.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993249","wikipedia":"https://en.wikipedia.org/wiki/Baumgardener%27s_Covered_Bridge","wikidata":"https://www.wikidata.org/wiki/Q4873552"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/lancaster-county/baumgardners-mill-covered-bridge-80003541/"}