{"nrhp_refnum":"74001794","name":"New Hamburg Historical Area","other_names":[],"category":"district","location":{"address":"7 mi. S of Greenville off PA 58","address_restricted":false,"city":"Greenville","county":"Mercer County","state":"PA","lat":41.32055125200003,"lon":-80.33777423427472,"geom_source":"nps_gis"},"listed_date":"1974-12-02","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Transportation"],"significance_levels":["local"],"summary":{"what_it_is":"The New Hamburg Historical Area is an approximately 159-acre site at the former village of New Hamburg (originally Hamburg) in Greenville, Mercer County, Pennsylvania, containing ruins and remains of the canal era and the Hamburg Iron Furnace. The site was largely in ruins before the construction of the Shenango River Lake Project.","why_significant":"The nomination argues that Hamburg was the most important community in Delaware Township during the canal era and that its iron furnace was a forerunner of the large steel mills important to Western Pennsylvania's economy. The surviving remains of the furnace, railroad bed, mill race, canal lock and loading bay, and canal-era foundations document the village's industrial and transportation history.","narrative":"The New Hamburg Historical Area covers about 159 acres at the site of the former village of New Hamburg in Mercer County, Pennsylvania. The village grew along the Erie Extension Canal after its first store opened in 1840, and its residents shipped coal from the area to Erie as fuel for lake freighters. The Hamburg Iron Furnace, on the right bank of the Shenango River, was built by the Mills and Lowry Company in 1846. It was connected to the canal town by a railroad, and its bed, a canal loading bay, a grist mill's mill race, a canal lock site and the canal and towpath remain visible. Several canal-era building foundations have also been located, including the remains of a canal official's dwelling. The furnace and village are historically important as early iron production that preceded Western Pennsylvania's steel industry. The canal was abandoned on September 5, 1871, after an aqueduct collapsed and a railroad was built nearby, and the community declined.","period_of_significance":"19th Century","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Ruins; sites of historical significance were in ruins prior to construction of the Shenango River Lake Project; no major development planned.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:30.083278-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/74001794.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/74001794/8b058ddfa2-800.webp","url_1600":"https://nationalhistoricalregister.com/media/74001794/8b058ddfa2-1600.webp","licence":"Public domain","author":"Nyttend","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Lawango_Run_at_New_Hamburg.jpg\" rel=\"noopener\">Nyttend</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Lawango_Run_at_New_Hamburg.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71995721","wikipedia":"https://en.wikipedia.org/wiki/New_Hamburg_Historical_Area","wikidata":"https://www.wikidata.org/wiki/Q15262054"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/mercer-county/new-hamburg-historical-area-74001794/"}