{"nrhp_refnum":"82001479","name":"Miami-Erie Canal Lock No. 70","other_names":[],"category":"site","location":{"address":"Fishburg and Endicott Rds.","address_restricted":false,"city":"Huber Heights","county":"Montgomery County","state":"OH","lat":39.841207016000055,"lon":-84.15885009199997,"geom_source":"nps_gis"},"listed_date":"1982-12-20","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Historic - Non-Aboriginal","Engineering","Transportation"],"significance_levels":["local"],"summary":{"what_it_is":"A surviving limestone canal lock on the Miami-Erie Canal at the southwest corner of Fishburg and Endicott Roads in Huber Heights, Wayne Township, Montgomery County, Ohio, dating from approximately 1830.","why_significant":"The nomination presents it as the last of three canal locks once in Wayne Township and a remnant of the Miami-Erie Canal system, which shaped Ohio's rapid economic growth in the early 1800s. It is in a remarkably good state of preservation. The area is also considered archeologically important for investigating a former milling and transportation area.","narrative":"Miami-Erie Canal Lock No. 70 is a limestone canal lock at the southwest corner of Fishburg and Endicott Roads in Huber Heights, Ohio, built around 1830. Two parallel walls about 15 feet apart run roughly 120 feet, with staggered stones, some cut as triangles, and polished hinge pockets where gate poles once turned. Silt fills the canal bed, trees have pushed some stones outward, and the southeast end has collapsed, though the stone itself is in very good condition and a weir and bypass channel remain. It is the last of three locks once located in Wayne Township and a remnant of the canal system that spurred Ohio's economic growth in the early 1800s. A marble dust factory once stood beside it, though no visible evidence survives, and the area holds archeological potential. The City of Huber Heights owns the lock and its five-acre plot and intends to develop a small park around it.","period_of_significance":"1800-1899","architect_builder":null,"architectural_style":null,"criteria":["A","C"],"status_note":"Listed as vacant; owned by the City of Huber Heights, which plans to make the lock the centerpiece of a small park on a five-acre plot. Condition is fair, with some wall collapse and displaced stones.","vacant_flag":true,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:14.89163-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/82001479.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71990388","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/montgomery-county/miami-erie-canal-lock-no-70-82001479/"}