{"nrhp_refnum":"79002269","name":"Mikado Freight Locomotive No. 520","other_names":[],"category":"structure","location":{"address":"E of Strasburg","address_restricted":false,"city":"Strasburg","county":"Lancaster County","state":"PA","lat":39.982416870000066,"lon":-76.16077163499995,"geom_source":"nps_gis"},"listed_date":"1979-12-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Transportation","Invention"],"significance_levels":["national"],"summary":{"what_it_is":"A 1916 Class L1 2-8-2 Mikado type freight steam locomotive, No. 520, built by the Baldwin Locomotive Works in Philadelphia in December 1916 for the Pennsylvania Railroad. It is held at the Railroad Museum of Pennsylvania in Strasburg, Lancaster County.","why_significant":"The locomotive is a fine example of its class and was part of a larger group of Pennsylvania Railroad rolling stock. The form notes that it shared boilers with the K-4s Pacifics built at the same time, and that it was involved in a rare boiler explosion near Cresson in 1942 before returning to service until 1957. The listing is part of a thematic group of Pennsylvania Railroad rolling stock, described as the only existing specimens of their types.","narrative":"Built by the Baldwin Locomotive Works in Philadelphia in December 1916, Mikado Freight Locomotive No. 520 is a Class L1 2-8-2 freight engine built for the Pennsylvania Railroad. It was designed to replace 2-8-0 locomotives on main line freight work. Its boiler was identical to that of the K-4s Pacific class locomotives being built at the same time, and the railroad ended up with 999 engines sharing similar boilers and other common parts. On November 14, 1942, while hauling a westbound freight train near Cresson at an estimated 15 to 18 miles per hour, the boiler exploded, killing the engineer, fireman and brakemen and injuring several others. The locomotive was repaired and returned to service, remaining in use until 1957, when it hauled a train of railfans from Baltimore to Enola. It is one of a group of Pennsylvania Railroad rolling stock examples preserved as a thematic resource.","period_of_significance":"1916","architect_builder":"Baldwin Locomotive Works, Philadelphia","architectural_style":null,"criteria":[],"status_note":"Held at the Railroad Museum of Pennsylvania","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:33.569332-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/79002269.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79002269/414872665f-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79002269/414872665f-1600.webp","licence":"CC BY-SA 4.0","author":"Photo by and (c)2015 Derek Ramsey (Ram-Man)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:RR79.40.5A_No._520_Front_Side.jpg\" rel=\"noopener\">Photo by and (c)2015 Derek Ramsey (Ram-Man)</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:RR79.40.5A_No._520_Front_Side.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71993183","wikipedia":"https://en.wikipedia.org/wiki/Pennsylvania_Railroad_520","wikidata":"https://www.wikidata.org/wiki/Q7120455"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/lancaster-county/mikado-freight-locomotive-no-520-79002269/"}