{"nrhp_refnum":"88000871","name":"Bridge in Dreher Township","other_names":[],"category":"structure","location":{"address":"LR 171 over Haags Mill Creek","address_restricted":false,"city":"Haags Mill","county":"Wayne County","state":"PA","lat":41.28827626100008,"lon":-75.33078422199998,"geom_source":"nps_gis"},"listed_date":"1988-06-22","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering"],"significance_levels":["state"],"summary":{"what_it_is":"A single-span high-rise stone arch bridge in Dreher Township, Wayne County, Pennsylvania, carrying vehicular traffic over Haags Mill Creek. The form gives a plaque date of 1934 for its construction.","why_significant":"The nomination argues that the bridge continues the 19th-century tradition of stone arch bridge construction, and that its use of rubble spandrel walls, dressed voussoirs and a small span into 1934 makes it one of the most recent examples in its group. The area of significance is engineering.","narrative":"A single-span high-rise stone arch bridge over Haags Mill Creek in Dreher Township, Wayne County, Pennsylvania. A bridge plaque dates its construction to 1934, though an earlier 1873 date appears in the bridge log. The structure has rubble spandrel walls and dressed voussoirs, with prominent keystones on both sides. Its 23.1-foot span and rubble stone construction follow 19th-century techniques, which the nomination treats as a late continuation of that tradition in stone arch building. The bridge is nominated for its engineering significance as one of the most recent examples of this method in its group of Pennsylvania Department of Transportation highway bridges. Concrete underpinning is the principal recorded alteration. The bridge remains in vehicular use, and its nominated boundary covers only the superstructure and substructure within the wing walls.","period_of_significance":null,"architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Vehicular use is stated for the present and original periods; concrete underpinning is noted as an alteration.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:36.84788-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/88000871.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/88000871/1d07a8f696-800.webp","url_1600":"https://nationalhistoricalregister.com/media/88000871/1d07a8f696-1600.webp","licence":"Public domain","author":"PennDOT","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Bridge_in_Dreher_Township.jpg\" rel=\"noopener\">PennDOT</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Bridge_in_Dreher_Township.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71994057","wikipedia":"https://en.wikipedia.org/wiki/Bridge_in_Dreher_Township","wikidata":"https://www.wikidata.org/wiki/Q4966348"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/wayne-county/bridge-in-dreher-township-88000871/"}