{"nrhp_refnum":"83002246","name":"Welty's Mill Bridge","other_names":[],"category":"structure","location":{"address":"S of Waynesboro on PA 997","address_restricted":false,"city":"Waynesboro","county":"Franklin County","state":"PA","lat":39.73779646100007,"lon":-77.57192003699998,"geom_source":"nps_gis"},"listed_date":"1983-01-06","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A two-arched limestone bridge carrying Pennsylvania Route 997 across the East Branch of the Little Antietam Creek in Washington Township, south of Waynesboro, Franklin County, Pennsylvania. It was built in 1856 by David Snively Stoner and is 137 feet long and 13 feet wide.","why_significant":"The nomination argues the bridge is an excellent example of substantial mid-nineteenth-century stone bridge construction and a monument to its builder's engineering skill, since it remains in use carrying heavier traffic than it was designed for. It is one of only four surviving stone bridges of the 23 once standing in Franklin County, and it is the only known remaining work of its builder in the county. It is also associated with Confederate troops crossing the creek on their way to Gettysburg in 1863.","narrative":"Welty's Mill Bridge is a two-arched limestone span built in 1856 across the East Branch of the Little Antietam Creek, south of Waynesboro in Washington Township, Franklin County. David Snively Stoner, a Waynesboro native and local builder, constructed it of coursed local limestone with carefully cut radiating voussoirs. The bridge is 137 feet long and 13 feet wide. Its south arch is higher and wider than the north, and pointed semi-pyramidal piers stand between the arches. A stone tablet on the east wall records the builder, the date and the county commissioners of the time. It is regarded as an excellent example of substantial mid-nineteenth-century stone bridge construction. Of 23 stone bridges once standing in Franklin County, only four survive, and this is the only known remaining work of Stoner in the county. Confederate troops under Jubal A. Early crossed the creek here on their way to Gettysburg in 1863. The bridge still carries traffic heavier than it was built to hold.","period_of_significance":"1856","architect_builder":"David Snively Stoner (builder)","architectural_style":null,"criteria":[],"status_note":"The bridge remains in use; it was repaired by the Pennsylvania Department of Transportation after a motorist struck its east wall.","vacant_flag":false,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.346579-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/83002246.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/83002246/e15dab4dc4-800.webp","url_1600":"https://nationalhistoricalregister.com/media/83002246/e15dab4dc4-1600.webp","licence":"CC0","author":"Smallbones","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Weltys_Bridge_from_SSE.JPG\" rel=\"noopener\">Smallbones</a>, <a href=\"http://creativecommons.org/publicdomain/zero/1.0/deed.en\" rel=\"license noopener\">CC0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Weltys_Bridge_from_SSE.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71998592","wikipedia":"https://en.wikipedia.org/wiki/Welty%27s_Mill_Bridge","wikidata":"https://www.wikidata.org/wiki/Q7982124"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/franklin-county/weltys-mill-bridge-83002246/"}