{"nrhp_refnum":"00001348","name":"Consolidated Ice Company Factory No. 2","other_names":[],"category":"building","location":{"address":"100 43rd St.","address_restricted":false,"city":"Pittsburgh","county":"Allegheny County","state":"PA","lat":40.474491715000056,"lon":-79.96390092799999,"geom_source":"nps_gis"},"listed_date":"2000-11-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A former ice manufacturing plant in the Lawrenceville neighborhood of Pittsburgh, Allegheny County, Pennsylvania, on the south bank of the Allegheny River. It consists of a 1907 brick office building, a 1907 brick manufacturing plant, and later additions, built for the Consolidated Ice Company.","why_significant":"The factory is argued to be locally significant under Criterion A for its role in the evolution of Pittsburgh's ice industry, and at the time of its 1907 construction it was the largest ice manufacturing plant in the city. It is also argued to be locally significant under Criterion C as a strong example of an industrial facility with period stylistic influences. The nomination describes it as one of the last surviving elements of the city's ice industry.","narrative":"Built in 1907 by the Consolidated Ice Company on a block bordered by 42nd, 43rd and Willow Streets in Pittsburgh's Lawrenceville neighborhood, this complex combines a two-story brick office building with a two-story brick manufacturing plant. At the time of construction it was the largest ice factory in the city, with a daily capacity of 200 tons. The plant's limited window openings and Romanesque brick detailing give it a fortress-like appearance. Its interior held brine-filled freezing tanks, where water in galvanized steel cans was frozen into blocks, and tall ice storage rooms cooled by refrigerant pipes. The factory was part of a shift from natural ice harvested from rivers and lakes to artificial ice made locally, a change that transformed domestic food storage. Its surviving buildings illustrate that transition. The complex closed in 1951, when home refrigeration had largely replaced the icebox trade.","period_of_significance":"1907-1951","architect_builder":null,"architectural_style":"Romanesque; Renaissance Revival","criteria":["A","C"],"status_note":"The factory closed in 1951, and two metal storage additions were added after the closing.","vacant_flag":null,"machine_generated":true,"model":"claude-haiku-5-5","prompt_version":"v1.1-2026-10-29","generated_at":"2026-10-29 17:11:36.955215-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_PA/00001348.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/00001348/19598ec117-800.webp","url_1600":"https://nationalhistoricalregister.com/media/00001348/19598ec117-1600.webp","licence":"CC BY-SA 2.0","author":"Eli Pousson","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Consolidated_Ice_Company,_Factory_No._2.jpg\" rel=\"noopener\">Eli Pousson</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.0\" rel=\"license noopener\">CC BY-SA 2.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Consolidated_Ice_Company,_Factory_No._2.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/71997822","wikipedia":"https://en.wikipedia.org/wiki/Consolidated_Ice_Company_Factory_No._2","wikidata":"https://www.wikidata.org/wiki/Q5163280"},"indexable":true,"url":"https://nationalhistoricalregister.com/pennsylvania/allegheny-county/consolidated-ice-company-factory-no-2-00001348/"}