{"nrhp_refnum":"95000547","name":"Stone Arch Road Bridge, Stewartstown Railroad","other_names":[],"category":"structure","location":{"address":"Stewartstown RR tracks over Stone Arch Rd., Shrewsbury Township","address_restricted":false,"city":"Railroad","county":"York County","state":"PA","lat":39.75035502000003,"lon":-76.68701240999997,"geom_source":"nps_gis"},"listed_date":"1995-05-04","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Transportation"],"significance_levels":["local"],"summary":{"what_it_is":"A riveted steel girder railroad bridge carrying the Stewartstown Railroad over the former Stone Arch Road in Shrewsbury Township, York County, Pennsylvania. The form dates it to about 1895 and states that it is still in use.","why_significant":"The nomination argues the bridge is significant for its engineering as one of three girder bridges on the line and for its riveted girder construction, an older manufacturing method that preceded rolled single-piece girders. It also cites the bridge's economical construction, reflecting the limited revenue of a short railroad, and notes that its stone abutments may survive from an earlier trestle bridge, so the structure reflects two periods of railroad construction.","narrative":"Built about 1895 by the Stewartstown Railroad Company in Shrewsbury Township, York County, this riveted steel girder bridge carries the railroad tracks over Stone Arch Road, which is no longer in use. Two riveted I-beams rest on stone abutments on either side of the roadway, and the abutments likely date from an earlier trestle bridge that the girder bridge replaced. The bridge is 27 1/2 feet long and is one of three girder bridges on the line. The Stewartstown Railroad was a short line of 7.2 miles that connected the borough and nearby merchants with the Northern Central Railway at New Freedom, and it operated with limited revenue. The bridge's fieldstone abutments, local wooden ties and simple design reflect the economical methods the company used. Its riveted girders are considered uncommon in York County, since they were built from several pieces joined together before rolling produced single-piece girders. The bridge remains in good condition.","period_of_significance":"C. 1895 1940","architect_builder":"Stewartstown Railroad Company (builder)","architectural_style":null,"criteria":["A","C"],"status_note":"Still in use, according to the description.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:36.250784-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/95000547.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/95000547/4747f336a3-800.webp","url_1600":"https://nationalhistoricalregister.com/media/95000547/4747f336a3-1600.webp","licence":"CC BY-SA 3.0","author":"Purple pirouette","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Stone_Arch_Road_Bridge,_Stewartstown_Railroad_Shrewsbury_Twp_PA.jpg\" rel=\"noopener\">Purple pirouette</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Stone_Arch_Road_Bridge,_Stewartstown_Railroad_Shrewsbury_Twp_PA.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71994099","wikipedia":"https://en.wikipedia.org/wiki/Stone_Arch_Road_Bridge,_Stewartstown_Railroad","wikidata":"https://www.wikidata.org/wiki/Q7618865"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/york-county/stone-arch-road-bridge-stewartstown-railroad-95000547/"}