{"nrhp_refnum":"80003552","name":"Bogert Covered Bridge","other_names":[],"category":"structure","location":{"address":"S of Allentown on LR 39016, Little Lehigh Park","address_restricted":false,"city":"Allentown","county":"Lehigh County","state":"PA","lat":40.56887210900004,"lon":-75.50429631099996,"geom_source":"nps_gis"},"listed_date":"1980-12-01","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Transportation"],"significance_levels":["state"],"summary":{"what_it_is":"A Burr truss covered bridge over the Little Lehigh stream in Little Lehigh Park, Allentown, Lehigh County, Pennsylvania. The document dates it to 1841.","why_significant":"The document states that the bridge, together with Wehr's Bridge, is the oldest remaining covered bridge in Lehigh County. It was restored by the Allentown Park Department and is owned by the City of Allentown. The included text describes the bridge as a good example of nineteenth-century wooden bridge technology.","narrative":"Built in 1841 over the Little Lehigh stream in Allentown, Lehigh County, Pennsylvania, this covered bridge uses a Burr truss system. It measures about 145 feet long and 15 feet wide and rests on large stone abutments, with two later concrete piers added to support it. It has vertical plank siding and a gable roof. The bridge is regarded as one of the two oldest surviving covered bridges in Lehigh County, the other being Wehr's Bridge. It sits within Little Lehigh Park, which is owned by the City of Allentown, and was restored by the Allentown Park Department. The surviving form illustrates wooden bridge construction methods from the early nineteenth century, which is the basis for its inclusion among the covered bridges of the Delaware River Watershed.","period_of_significance":null,"architect_builder":null,"architectural_style":"Burr truss","criteria":[],"status_note":"Restored by the Allentown Park Department; condition recorded as good; located within a city park.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.07001-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/80003552.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/80003552/facf8b4f91-800.webp","url_1600":"https://nationalhistoricalregister.com/media/80003552/facf8b4f91-1600.webp","licence":"CC0","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Bogert_Covered_Bridge.JPG\" rel=\"noopener\">Smallbones</a>, <a href=\"http://creativecommons.org/publicdomain/zero/1.0/deed.en\" rel=\"license noopener\">CC0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Bogert_Covered_Bridge.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993324","wikipedia":"https://en.wikipedia.org/wiki/Bogert_Covered_Bridge","wikidata":"https://www.wikidata.org/wiki/Q4937559"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/lehigh-county/bogert-covered-bridge-80003552/"}