{"nrhp_refnum":"82001911","name":"Old Mill Site Historic District","other_names":["Shattuck Gun Shop","Porter-McLeod Machine Shop","Prospect Street"],"category":"district","location":{"address":"48 and 50 Prospect St.","address_restricted":false,"city":"Hatfield","county":"Hampshire County","state":"MA","lat":42.37115659800003,"lon":-72.59642757799998,"geom_source":"nps_gis"},"listed_date":"1982-06-02","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Industry","Engineering"],"significance_levels":["local"],"summary":{"what_it_is":"A small industrial district at 48 and 50 Prospect Street in Hatfield, Massachusetts, made up of three mill buildings on both sides of the Mill River dam and a Warren pony truss bridge, with buildings dating from 1881 and 1886 and the bridge from 1891.","why_significant":"The site is argued to be an intact example of 19th century rural industrial life, associated with broad patterns of industrial history and showing distinctive characteristics of mill construction. It has been used for milling since the 1600s and employed many Hatfield men when other farming towns lacked industry. The original water turbines and related civil works remain in place.","narrative":"Along the Mill River in Hatfield, Massachusetts, a cluster of mill buildings and a metal bridge preserve a working landscape that has been used for industry since the 1600s. The district includes the three-story Shattuck Gun Shop of 1881, a post and beam building with slate roof and cupola, and the one-story Porter-McLeod Machine Shop of 1886, later enlarged. A small gristmill and power house holds a turbine installed around 1915, and a Warren pony truss bridge built in 1891 crosses upstream. Thomas Meekins received rights to the falls in 1661 and built a gristmill and sawmill. Later owners made pistols, machine tools, spark plugs and corn meal. The Shattuck turbine, installed in 1917, ran until 1965, and the dam and power works survive. The site was listed for its integrity and its record of rural industrial life and mill construction.","period_of_significance":"1800-1899 (also 1900- checked; specific dates 1881, 1891)","architect_builder":null,"architectural_style":null,"criteria":["A","C"],"status_note":"Buildings are described as in excellent condition; the Prospect Street Bridge is closed to traffic, needs new decking and pointing, and is judged suitable for pedestrian use.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:54.952663-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/93/7953/63795393/content/electronic-records/rg-079/NPS_MA/82001911.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/82001911/f34edd625e-800.webp","url_1600":"https://nationalhistoricalregister.com/media/82001911/f34edd625e-1600.webp","licence":"CC BY-SA 3.0","author":"John Phelan","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Old_Mill_on_the_Falls,_Hatfield_MA.jpg\" rel=\"noopener\">John Phelan</a>, <a href=\"https://creativecommons.org/licenses/by-sa/3.0\" rel=\"license noopener\">CC BY-SA 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Old_Mill_on_the_Falls,_Hatfield_MA.jpg"},"district":{"nrhp_refnum":"94000737","name":"Hatfield Center Historic District","url":"https://nationalhistoricalregister.com/districts/massachusetts/hatfield-center-historic-district-94000737/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63795393","wikipedia":"https://en.wikipedia.org/wiki/Old_Mill_Site_Historic_District","wikidata":"https://www.wikidata.org/wiki/Q7084530"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/hampshire-county/old-mill-site-historic-district-82001911/"}