{"nrhp_refnum":"79000308","name":"Lock No. 32","other_names":[],"category":"structure","location":{"address":"800 ft. N of Boston Mills","address_restricted":false,"city":"Boston","county":"Summit County","state":"OH","lat":41.26619468100006,"lon":-81.55878669299994,"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. 32 is a canal lock on the Ohio & Erie Canal at the northern edge of the village of Boston, Summit County, Ohio, built 1825-1827 and sited about 300 feet north of Boston Mills Road.","why_significant":"The lock is a surviving part of the Ohio & Erie Canal, which the form credits as a major influence on commerce, manufacturing and population growth in Ohio for about 30 years. It is also credited with helping the growth of the village of Boston. It was included in a survey of historic civil engineering landmarks.","narrative":"Lock No. 32 is a canal lock on the Ohio & Erie Canal at the northern edge of the village of Boston in Summit County, Ohio. Built between 1825 and 1827, it is a standard mitered-gate lock with a chamber about 90 feet long and 15 feet wide. The original cut stone walls were covered with a concrete facing around 1905. Today both gates are missing, though water remains in the chamber, and thickets have grown over the site. The lock sits on the former towpath along an unmarked, unimproved road, with the Boston cemetery to the west. The stretch of the canal between Akron and Cleveland opened on July 4, 1827. For about thirty years the waterway strongly shaped commerce, manufacturing and population growth across Ohio, and it likely contributed to the growth of Boston itself. The lock was listed as a surviving piece of that canal system and has also been recognized as a historic civil engineering landmark.","period_of_significance":"1825-1827","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Condition is fair. Both gates are missing, there is water in the chamber, the site is heavily overgrown with thickets, and the lock is publicly owned.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:53:12.140603-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_OH/79000308.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/79000308/34d674ddcd-800.webp","url_1600":"https://nationalhistoricalregister.com/media/79000308/34d674ddcd-1600.webp","licence":"Public domain","author":"National Park Service","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Lock_32_Boston_Lock_NPS.jpg\" rel=\"noopener\">National Park Service</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Lock_32_Boston_Lock_NPS.jpg"},"district":{"nrhp_refnum":"92001490","name":"Boston Mills Historic District","url":"https://nationalhistoricalregister.com/districts/ohio/boston-mills-historic-district-92001490/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71986312","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q97994449"},"indexable":true,"url":"https://nationalhistoricalregister.com/ohio/summit-county/lock-no-32-79000308/"}