{"nrhp_refnum":"79000310","name":"Lock No. 34","other_names":["Red Lock"],"category":"structure","location":{"address":"Highland Rd.","address_restricted":false,"city":"Sagamore Hills","county":"Summit County","state":"OH","lat":41.28922675800004,"lon":-81.56447765199994,"geom_source":"nps_gis"},"listed_date":"1979-12-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Engineering","Transportation","Exploration/Settlement"],"significance_levels":["state"],"summary":{"what_it_is":"Lock No. 34, known as the \"Red Lock,\" is a canal lock on the Ohio & Erie Canal on the north side of Highland Road, just east of the Cuyahoga River, in Sagamore Hills, Summit County, Ohio. It was built 1825-1827.","why_significant":"The lock is part of the section of the Ohio & Erie Canal between Akron and Cleveland, which opened July 4, 1827. That stretch dropped 395 feet through 41 locks in 35 miles. The inventory notes the canal's importance in regional development.","narrative":"Lock No. 34, nicknamed the \"Red Lock,\" is a canal lock on the Ohio & Erie Canal in Sagamore Hills, Summit County, Ohio. It sits on the north side of Highland Road, just east of the Cuyahoga River and near the Jaite Paper Mill. Built between 1825 and 1827, it is a standard mitered-gate lock of cut stone, with a chamber about 15 feet wide. The masonry was repaired with concrete around 1905. It belongs to the stretch of canal between Akron and Cleveland that opened on July 4, 1827, where 41 locks over 35 miles handled a 395-foot drop. One local history gives the name \"Red Lock,\" though its origin is unexplained; another writer recorded that lock woodwork and sluices were painted Indian red. Today both gates are missing, the canal bed is dry, though water remains in the chamber, and the stonework is deteriorated. Thickets nearly hide the lock, and the surrounding land has been used for dumping.","period_of_significance":"1825-1827","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Fair condition; both gates are missing, the canal is dry at this point though water stands in the chamber, stonework and concrete are deteriorated, and the site is overgrown and used as a dumping ground.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:12.628612-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/79000310.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79000310/139d6702ab-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79000310/139d6702ab-1600.webp","licence":"Public domain","author":"National Park Service","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Lock_34_Red_Lock_NPS.jpg\" rel=\"noopener\">National Park Service</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Lock_34_Red_Lock_NPS.jpg"},"district":{"nrhp_refnum":"79000288","name":"Jaite Mill Historic District","url":"https://nationalhistoricalregister.com/districts/ohio/jaite-mill-historic-district-79000288/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71986316","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q97994458"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/summit-county/lock-no-34-79000310/"}