{"nrhp_refnum":"88000831","name":"Bryn Athyn-Lower Moreland Bridge","other_names":[],"category":"structure","location":{"address":"Byberry Rd. over branch of Pennypack Creek","address_restricted":false,"city":"Lower Moreland","county":"Montgomery County","state":"PA","lat":40.15877372600005,"lon":-75.07464754199998,"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 stone highway bridge spanning between Bryn Athyn Borough and Lower Moreland Township in Montgomery County, Pennsylvania, carrying Byberry Road over Pennypack Creek. Its two plaques are dated 1828 and 1858.","why_significant":"The nomination describes the bridge as a good example of a nineteenth century stone highway bridge in Pennsylvania. Its small semi-circular arches, roughly squared stonework and excellent integrity make it a fine example of early and mid-19th century multi-span stone bridges in the nominated group. The area of significance is engineering.","narrative":"Carrying Byberry Road across Pennypack Creek between Bryn Athyn Borough and Lower Moreland Township, this two-span stone bridge is built of semi-coursed, roughly squared stones. Two plaques set in the parapet walls record construction in 1828 and 1858. Its semi-circular arches are unusually small, each spanning about 12 feet, and the overall structure measures 75 feet long by 25 feet wide. The bridge is regarded as a good example of nineteenth-century stone highway bridgework in Pennsylvania. Its small spans, rough-hewn masonry and well-preserved integrity make it representative of early and mid-nineteenth-century multi-span stone bridges within the group nominated under the Pennsylvania Department of Transportation highway bridge submission. The listing rests on engineering significance. The nominated area includes only the superstructure and substructure, bounded by the outside corners of the wing walls, and covers less than one acre.","period_of_significance":"1828-1858","architect_builder":null,"architectural_style":"Semi-circular stone arch","criteria":[],"status_note":"Repaired; altered in 1858 according to the integrity entry.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:38.021949-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/88000831.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/88000831/8e11058552-800.webp","url_1600":"https://nationalhistoricalregister.com/media/88000831/8e11058552-1600.webp","licence":"CC BY-SA 3.0","author":"Shuvaev","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Byberry_Road_Bridge,_Lower_Moreland_01.JPG\" rel=\"noopener\">Shuvaev</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:Byberry_Road_Bridge,_Lower_Moreland_01.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993380","wikipedia":"https://en.wikipedia.org/wiki/Bryn_Athyn-Lower_Moreland_Bridge","wikidata":"https://www.wikidata.org/wiki/Q4980830"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/montgomery-county/bryn-athyn-lower-moreland-bridge-88000831/"}