{"nrhp_refnum":"88000863","name":"Quaker Bridge","other_names":[],"category":"structure","location":{"address":"LR 43135 over Little Shenango River","address_restricted":false,"city":"Greenville","county":"Mercer County","state":"PA","lat":41.42582053000007,"lon":-80.37269843299998,"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 Pratt through truss vehicular bridge over the Little Shenango River in Hempfield Township, Mercer County, Pennsylvania, with an open grated metal deck. It is listed as a 124-foot span, and the nominated property is a 160 by 25 foot rectangle including superstructure and substructure.","why_significant":"The nomination describes it as a typical example of a Pratt through truss bridge and a well-preserved representative of a bridge type used frequently in northwestern Pennsylvania. The area of significance is engineering. The form states it was built in 1898 by the Cleveland Bridge Company.","narrative":"Built in 1898 by the Cleveland Bridge Company, Quaker Bridge carries vehicle traffic across the Little Shenango River in Hempfield Township, Mercer County, in northwestern Pennsylvania. It is a single-span Pratt through truss of steel, with a span of 124 feet over all, and its superstructure was sourced from Carnegie, USA. The truss uses pin and riveted connections, eyebar members and a diamond railing, and its deck is open grated metal. The bridge is recognized as a typical example of the Pratt through truss type. Its significance lies in its engineering: it is considered a well-preserved example of a bridge type common in the region. The bridge is unaltered and remains in its original location, which the nomination cites as the basis for its importance to the study of regional bridge construction.","period_of_significance":null,"architect_builder":"Cleveland Bridge Co. (builder)","architectural_style":null,"criteria":[],"status_note":"Unaltered, in original location, with vehicular use both originally and at present.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:36.374533-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/88000863.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/88000863/0043d37b79-800.webp","url_1600":"https://nationalhistoricalregister.com/media/88000863/0043d37b79-1600.webp","licence":"Public domain","author":"PennDOT","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Quaker_Bridge.jpg\" rel=\"noopener\">PennDOT</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Quaker_Bridge.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993372","wikipedia":"https://en.wikipedia.org/wiki/Quaker_Bridge","wikidata":"https://www.wikidata.org/wiki/Q7268536"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/mercer-county/quaker-bridge-88000863/"}