{"nrhp_refnum":"79002313","name":"Keefer Station Covered Bridge","other_names":[],"category":"structure","location":{"address":"E of Sunbury on T 698, Upper Augusta Township","address_restricted":false,"city":"Sunbury","county":"Northumberland County","state":"PA","lat":40.87058848100003,"lon":-76.72331072899993,"geom_source":"nps_gis"},"listed_date":"1979-08-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Transportation"],"significance_levels":["local"],"summary":{"what_it_is":"A single-span covered timber truss bridge with a double Burr arch, located on Township Route 698 east of Sunbury, Northumberland County, Pennsylvania, crossing Shamokin Creek. It was built in 1888 by George W. Keefer.","why_significant":"The nomination presents the bridge as one of a fine collection of nineteenth-century covered bridges in Northumberland County, representing a full range of truss types and sizes. Its combined arch-and-truss design, a type patented by Theodore Burr in 1817, was especially used for longer spans and was the most common type of covered bridge erected in the area.","narrative":"Built in 1888 by George W. Keefer near the farm of John G. Bright, this single-span covered timber bridge crosses Shamokin Creek east of Sunbury in Northumberland County, Pennsylvania. It has a clear span of 93 feet 6 inches between stone masonry abutments and a total length of 109 feet, with a roadway width of 14 feet 1 inch. Its design combines a multiple kingpost truss with a two-member Burr arch running alongside the truss members, a form of combined arch and truss patented by Theodore Burr in 1817 and used mainly for longer spans. The bridge cost $882.00 to build. The county's covered bridges form a notable group with a full range of truss types and sizes from the nineteenth century, and this structure was one of the common types erected in the area. The floor is laid with longitudinal planks of varying widths, and the bridge was surveyed in fair condition.","period_of_significance":"1888","architect_builder":"George W. Keefer (builder)","architectural_style":"Multiple kingpost truss with double Burr arch","criteria":[],"status_note":"Overall condition is fair; the inventory form records the bridge as altered and moved.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:13:06.018324-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/79002313.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79002313/1526b523ca-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79002313/1526b523ca-1600.webp","licence":"CC BY-SA 4.0","author":"Ruhrfisch (talk)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Keefer_Station_Covered_Bridge_1.jpg\" rel=\"noopener\">Ruhrfisch (talk)</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Keefer_Station_Covered_Bridge_1.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993422","wikipedia":"https://en.wikipedia.org/wiki/Keefer_Station_Covered_Bridge","wikidata":"https://www.wikidata.org/wiki/Q6382700"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/northumberland-county/keefer-station-covered-bridge-79002313/"}