{"nrhp_refnum":"12001094","name":"United States Post Office-Sewickley Branch","other_names":["Old Sewickley Post Office","Sewickly Valley Cultural Center"],"category":"building","location":{"address":"200 Broad St.","address_restricted":false,"city":"Sewickley","county":"Allegheny County","state":"PA","lat":40.53880855400007,"lon":-80.18362193999997,"geom_source":"nps_gis"},"listed_date":"2012-12-26","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A one-story, stone-clad Beaux Arts post office at the intersection of Broad and Bank Streets in Sewickley Borough, Allegheny County, Pennsylvania, on the northern approach to the Sewickley-Coraopolis Bridge. It was designed under James Knox Taylor and built by M.P. Wells, with construction beginning in 1910 and opening to the public on January 29, 1912.","why_significant":"The nomination argues the building is a significant example of Classically-inspired architecture in Sewickley Borough and of post office architecture in the Pittsburgh region. Its scale and grandeur, its role as a gateway landmark at the bridge, and its largely intact exterior and primary interior spaces support its listing.","narrative":"Built on a prominent corner at Broad and Bank Streets in Sewickley Borough, this one-story stone-clad post office was designed in the Beaux Arts style under James Knox Taylor, Supervising Architect of the Treasury Department, and built by the Philadelphia firm of M.P. Wells. Construction began in 1910 and the building opened on January 29, 1912. Its granite foundation and limestone walls rise to a flat roof behind a classical entablature and attic parapet. The west entrance has four Ionic columns and monumental granite stairs flanked by lampposts. The building stands at the northern end of the Sewickley-Coraopolis Bridge across the Ohio River and serves as a visual gateway to the borough. It is regarded as a strong example of early twentieth-century federal civic architecture in the region. Postal operations ended in 1981. The exterior and primary interior spaces remain largely as they were originally built, which supports its significance.","period_of_significance":"1912","architect_builder":"Taylor, James Knox (architect); Wells, M.P. (builder)","architectural_style":"Beaux Arts","criteria":["C"],"status_note":"The building sat vacant after postal operations ended in 1981 and was later renovated in 1987 for reuse as the Sewickley Valley Cultural Center.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:10:27.557183-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/12001094.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/12001094/5a7387a2a4-800.webp","url_1600":"https://nationalhistoricalregister.com/media/12001094/5a7387a2a4-1600.webp","licence":"CC BY-SA 4.0","author":"Lee Paxton","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:OldSewickleyPostOffice.jpg\" rel=\"noopener\">Lee Paxton</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:OldSewickleyPostOffice.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71998131","wikipedia":"https://en.wikipedia.org/wiki/United_States_Post_Office-Sewickley_Branch","wikidata":"https://www.wikidata.org/wiki/Q16902341"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/allegheny-county/united-states-post-office-sewickley-branch-12001094/"}