{"nrhp_refnum":"88000827","name":"Bridge in West Mead Township","other_names":[],"category":"structure","location":{"address":"LR 20027 over French Creek","address_restricted":false,"city":"Center Road Corners","county":"Crawford County","state":"PA","lat":41.589139137000075,"lon":-80.15024194899996,"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 bridge carrying vehicles over French Creek at Center Road Corners in West Mead Township, Crawford County, Pennsylvania. The bridge is 158 feet long overall and was built in 1888 by the Penn Bridge Company of Beaver Falls.","why_significant":"The nomination argues the bridge is a typical, well-preserved, lightly structured example of a Pratt truss type used frequently in northwestern Pennsylvania. It is said to be unaltered and to retain much of its nineteenth-century character. Its significance is in engineering.","narrative":"Built in 1888, this single-span Pratt through truss carries vehicles across French Creek at Center Road Corners in West Mead Township, Crawford County. The bridge measures about 158 feet overall and rests on stone abutments. Its steel members include eyebars, riveted angles and channels, and lacing bars, with pin-connected joints. The superstructure was made by the Penn Bridge Company of Beaver Falls, a firm founded in 1868 that built truss bridges into the early twentieth century, as shown on the bridge's portal plates. The bridge is regarded as a lightly structured example of a truss type common in northwestern Pennsylvania, and it retains much of its nineteenth-century character. It is valued for its engineering, and its original design survives largely intact despite later additions to the deck.","period_of_significance":"1888","architect_builder":"Designer/Engineer: Unknown; Bridge Company: Penn Bridge Company, Beaver Falls, PA","architectural_style":"Pratt through truss","criteria":["C"],"status_note":"Form lists the bridge as altered, with a 1937 floor system and a 1946 laminated floor with bituminous wearing surface, though the significance text describes it as unaltered.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:36.421003-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/88000827.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/88000827/756a29b180-800.webp","url_1600":"https://nationalhistoricalregister.com/media/88000827/756a29b180-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Bridge_in_West_Mead_Township_site.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Bridge_in_West_Mead_Township_site.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71992854","wikipedia":"https://en.wikipedia.org/wiki/Bridge_in_West_Mead_Township","wikidata":"https://www.wikidata.org/wiki/Q4966459"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/crawford-county/bridge-in-west-mead-township-88000827/"}