{"nrhp_refnum":"77001120","name":"Westinghouse, George, Memorial Bridge","other_names":[],"category":"structure","location":{"address":"U.S. 30 at Turtle Creek, North Versailles Township","address_restricted":false,"city":"East Pittsburgh","county":"Allegheny County","state":"PA","lat":40.39382969300004,"lon":-79.83741219399997,"geom_source":"nps_gis"},"listed_date":"1977-03-28","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Transportation"],"significance_levels":["national"],"summary":{"what_it_is":"A reinforced concrete highway bridge carrying a four-lane road across the Turtle Creek Valley between East Pittsburgh and East McKeesport in Allegheny County, Pennsylvania. It has five double-rib parabolic arches and a length of 1595 feet, 10 inches.","why_significant":"At the time of construction the center span was the longest reinforced concrete arch in the country. The nomination argues that its great height, graceful spans and handsome appearance make it one of the most distinctive bridges in Pittsburgh. The Engineering News Record is quoted as placing it among other major engineering achievements of its time.","narrative":"Reinforced concrete highway bridge spanning the Turtle Creek Valley in Allegheny County, Pennsylvania, carrying a four-lane road between East Pittsburgh and East McKeesport. Work began on May 15, 1930, the structure was completed on December 28, 1931, and it opened on September 10, 1932. Its five double-rib parabolic arches form a total length of 1595 feet, 10 inches, with a main span of 460 feet. The center span was the longest reinforced concrete arch in the country when it was built, and the piers rise as high as 212 feet. Engineering News Record placed the bridge among major engineering achievements of its era, alongside the Holland Tunnel, the Hudson River Suspension Bridge and Hoover Dam. Its height and graceful spans are seen as making it one of the most handsome of Pittsburgh's many bridges. The structure is listed for its engineering and transportation importance.","period_of_significance":"1930-1932","architect_builder":"Vernon R. Covell, George S. Richardson & A. D. Nutter","architectural_style":null,"criteria":["C"],"status_note":"The bridge is state owned and inspected every two years, and plans for its rehabilitation have been approved.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:29.969307-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/77001120.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/77001120/57311d9e44-800.webp","url_1600":"https://nationalhistoricalregister.com/media/77001120/57311d9e44-1600.webp","licence":"Public domain","author":"James M. Owston.","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Westinghousebridge.jpg\" rel=\"noopener\">James M. Owston.</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Westinghousebridge.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71995357","wikipedia":"https://en.wikipedia.org/wiki/George_Westinghouse_Bridge","wikidata":"https://www.wikidata.org/wiki/Q5546180"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/allegheny-county/westinghouse-george-memorial-bridge-77001120/"}