{"nrhp_refnum":"80003428","name":"Knapp's Covered Bridge","other_names":[],"category":"structure","location":{"address":"E of Burlington on T 554, Burlington Township","address_restricted":false,"city":"Burlington","county":"Bradford County","state":"PA","lat":41.78598714900005,"lon":-76.55325373499994,"geom_source":"nps_gis"},"listed_date":"1980-07-24","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Transportation"],"significance_levels":["local"],"summary":{"what_it_is":"A 95-foot Burr arch truss covered bridge over Brown's Creek in Burlington Township, Bradford County, Pennsylvania, dating from 1853. It is also known as Luther's Mills Covered Bridge.","why_significant":"It is the only covered bridge left in Bradford County, which makes it the county's sole surviving example of its type. It is one of the highest covered bridges in Pennsylvania, with the drop from the bridge to the water exceeding 30 feet. Its vertical plank siding, which covers only the middle of the sidewalls, is similar to that of Bedford County bridges.","narrative":"Burlington Township in Bradford County holds a 95-foot Burr arch truss bridge completed in 1853 over Brown's Creek, also known as Luther's Mills Covered Bridge. The structure is 14 feet wide and clad in vertical plank siding that reaches only to the middle of the sidewalls, a treatment similar to that of Bedford County bridges. Its deck sits more than 30 feet above the creek, placing it among the highest covered bridges in Pennsylvania. It is the only covered bridge remaining in Bradford County, making it the county's sole surviving example of the type. Repairs in 1963 renewed its flooring, roof and abutments, and its condition is excellent owing to consistent upkeep. Its importance rests on its age, its height above the water, and its rarity as the last covered crossing in the county. Because it stands alone, its regional characteristics are difficult to judge against comparable structures nearby.","period_of_significance":null,"architect_builder":null,"architectural_style":"Burr arch truss","criteria":[],"status_note":"Excellent condition; flooring, roof and abutments were repaired in 1963.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.583819-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/80003428.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80003428/638c4327dc-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80003428/638c4327dc-1600.webp","licence":"CC BY-SA 4.0","author":"Ruhrfisch (talk)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Knapp%27s_Covered_Bridge.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:Knapp%27s_Covered_Bridge.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71992430","wikipedia":"https://en.wikipedia.org/wiki/Knapp%27s_Covered_Bridge","wikidata":"https://www.wikidata.org/wiki/Q6421736"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/bradford-county/knapps-covered-bridge-80003428/"}