{"nrhp_refnum":"73001226","name":"Moore, Benjamin C., Mill","other_names":["Lockport City Hall","Holly Water Works"],"category":"building","location":{"address":"Pine St. on the Erie Canal","address_restricted":false,"city":"Lockport","county":"Niagara County","state":"NY","lat":43.170755489000044,"lon":-78.69247162899995,"geom_source":"nps_gis"},"listed_date":"1973-06-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Commerce","Engineering","Politics/Government","Architecture","Invention"],"significance_levels":["local"],"summary":{"what_it_is":"A two-and-a-half-story limestone building on Pine Street beside the Erie Canal locks in Lockport, New York. It began as the Benjamin C. Moore Company flour mill in 1864 and later served as a waterworks and then as Lockport City Hall.","why_significant":"The building is a surviving example of the stone mills that once lined the Erie Canal at Lockport, one of few left of about 25 industrial buildings. It was converted into one of America's early water pumping plants, run by the Holly Water Works, and then into city hall in 1893. Its close fit with the canal locks and escarpment gives it a strong sense of place.","narrative":"Standing at the foot of the Erie Canal's flight of locks in Lockport, this limestone building began in 1864 as the Benjamin C. Moore Company flour mill. About twenty years later it became one of the first water pumping plants in America, operated by the Holly Water Works, a pioneer in central pumping systems. The city bought it, ran it as the municipal water works until 1893, and then converted it into city hall. A trapezoidal rear wing for the common council was added that year. Locally quarried Lockport limestone was used in its walls, and an old hydraulic raceway still runs beneath it. The building is one of the few survivors of some 25 industrial buildings once clustered along the canal. Its foundation wall also acts as a retaining wall at the foot of the 1918 locks. Changing uses brought many interior alterations, but milling remnants survive in the sub-basement, and the site has long been a focal point of the city's civic life.","period_of_significance":"19th Century (specific date 1864)","architect_builder":null,"architectural_style":null,"criteria":[],"status_note":"Occupied and in use as city hall; condition rated fair and integrity marked altered. The form notes plans for a new city hall across the canal, leaving the building's future uncertain.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:39.762723-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/73001226.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/73001226/ba78d48f80-800.webp","url_1600":"https://nationalhistoricalregister.com/media/73001226/ba78d48f80-1600.webp","licence":"Public domain","author":"Pubdog (talk)","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Benjamin_C._Moore_Mill_Jun_09.JPG\" rel=\"noopener\">Pubdog (talk)</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Benjamin_C._Moore_Mill_Jun_09.JPG"},"district":{"nrhp_refnum":"75001211","name":"Lockport Industrial District","url":"https://nationalhistoricalregister.com/districts/new-york/lockport-industrial-district-75001211/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75320125","wikipedia":"https://en.wikipedia.org/wiki/Benjamin_C._Moore_Mill","wikidata":"https://www.wikidata.org/wiki/Q4888366"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/niagara-county/moore-benjamin-c-mill-73001226/"}