{"nrhp_refnum":"88000834","name":"Brownsville Bridge","other_names":[],"category":"structure","location":{"address":"LR 268 over Monongahela River","address_restricted":false,"city":"Brownsville","county":"Fayette County","state":"PA","lat":40.022268041000075,"lon":-79.89026277399995,"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 steel pin-connected Pennsylvania (Petit) through truss highway bridge spanning the Monongahela River at Brownsville, Fayette County, Pennsylvania. It was built in 1914 and carries vehicular traffic.","why_significant":"The form argues the bridge is unusually long for its type, spanning 519 feet, and is heavily engineered from channels, lacing bars, plates and eyebars. It is one of eight representative Pennsylvania (Petit) truss examples in the multiple resource nomination, and its span is significantly longer than all the others. The area of significance checked is engineering.","narrative":"Built in 1914 by the Fort Pitt Bridge Works, the Brownsville Bridge is a steel pin-connected Pennsylvania (Petit) through truss carrying vehicular traffic across the Monongahela River between Fayette and Washington counties. Its main span measures 519.17 feet overall, and it is built from channels, lacing bars, plates and eyebars. The bridge's design was credited to G. Porter, Hermann and Armstrong, and the superstructure steel was supplied by Jones and Laughlin. The bridge was resurfaced in 1948 and repaired in 1966. Its importance lies in engineering: it is one of eight representative examples of the Pennsylvania (Petit) truss included in a multiple resource nomination of Commonwealth highway bridges, and its span is significantly longer than all the others of that type. The surrounding area is rural and largely undeveloped.","period_of_significance":"1914","architect_builder":"G. Porter, Hermann & Armstrong (designer/engineer); Fort Pitt Bridge Works (builder/contractor)","architectural_style":"Pennsylvania (Petit) truss","criteria":["C"],"status_note":"Altered in 1966 with repairs; the form notes the bridge is very rusty.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:37.897667-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/88000834.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/88000834/77c89c495f-800.webp","url_1600":"https://nationalhistoricalregister.com/media/88000834/77c89c495f-1600.webp","licence":"Public domain","author":"VitaleBaby (talk)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Oldbrownsville.jpg\" rel=\"noopener\">VitaleBaby (talk)</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Oldbrownsville.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71992945","wikipedia":"https://en.wikipedia.org/wiki/Brownsville_Bridge","wikidata":"https://www.wikidata.org/wiki/Q4976779"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/fayette-county/brownsville-bridge-88000834/"}