{"nrhp_refnum":"79000303","name":"Lock No. 27","other_names":["Johnny Cake Lock"],"category":"structure","location":{"address":"Approx. 400 ft. E of intersection of Riverview and Everett Rds.","address_restricted":false,"city":"Everett","county":"Summit County","state":"OH","lat":41.20308089900004,"lon":-81.57065365499994,"geom_source":"nps_gis"},"listed_date":"1979-12-11","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Commerce","Engineering","Transportation","Exploration/Settlement"],"significance_levels":["state"],"summary":{"what_it_is":"Lock No. 27, known as the Johnny Cake Lock, is a sandstone canal lock on the Ohio and Erie Canal at Everett, Summit County, Ohio, built between 1825 and 1827.","why_significant":"The lock is a surviving example of the canal's standard mitered-gate lock design, with original gate hardware still in the east wall. Its name comes from a local tradition about a flood in 1828 that stopped navigation and left stranded crews and passengers eating johnnycake. It is part of the Ohio and Erie Canal thematic group, which a reviewer noted as important in regional development.","narrative":"Lock No. 27, called the Johnny Cake Lock, is a canal lock on the Ohio and Erie Canal in the village of Everett, Summit County, Ohio. Built between 1825 and 1827, it is a standard mitered-gate lock with a chamber 90 feet long and 15 feet wide, built of cut sandstone and repaired with concrete around 1905. Both gates are now missing, and the chamber holds some water, though the canal is dry south of Peninsula. An original piece of hardware, probably the wrought iron collar bearing that held the oak gate post, remains in the east lock wall at the south end. The name comes from a local tradition that in spring 1828 a flood in Furnace Run swept into the canal and halted navigation. Crews and passengers were stranded at the stopover then known as Unionville and were reduced to a diet of johnnycake for several days. The lock is owned by a metropolitan park district and is included in the Ohio and Erie Canal thematic group.","period_of_significance":"1825-1827","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Condition listed as fair; both gates are missing, there is some water in the chamber, and the canal is dry south of Peninsula. The lock was repaired with concrete around 1905.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:12.317803-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/79000303.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79000303/27fe3863d2-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79000303/27fe3863d2-1600.webp","licence":"Public domain","author":"National Park Service","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Lock_27_Johnny_Cake_Lock.jpg\" rel=\"noopener\">National Park Service</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Lock_27_Johnny_Cake_Lock.jpg"},"district":{"nrhp_refnum":"85001123","name":"Valley Railway Historic District","url":"https://nationalhistoricalregister.com/districts/ohio/valley-railway-historic-district-85001123/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71986304","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q97994406"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/summit-county/lock-no-27-79000303/"}