{"nrhp_refnum":"11000709","name":"Rockland Road Bridge Historic District","other_names":[],"category":"district","location":{"address":"Ferdon Ave., Rockland Rd. & S. Piermont Ave.","address_restricted":false,"city":"Piermont","county":"Rockland County","state":"NY","lat":41.036784898000064,"lon":-73.91918194599998,"geom_source":"nps_gis"},"listed_date":"2011-09-29","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Commerce","Industry"],"significance_levels":["local"],"summary":{"what_it_is":"A 5.38-acre historic district in the Village of Piermont, Rockland County, New York, centered on an 1874 brick arch bridge over Sparkill Creek and the buildings and structures along Ferdon Avenue, Rockland Road and South Piermont Avenue. It has 20 contributing and 8 non-contributing resources.","why_significant":"The district preserves an area tied to Piermont's earliest mill-based settlement and its commercial, industrial and civic life in the 19th century. Its buildings illustrate architectural change from the late 18th century to the mid-19th century, including the shift from Dutch-influenced to English-influenced building traditions. Three resources (Ferdon Hall, Haddock Hall and the bridge) were already individually listed.","narrative":"Along both banks of Sparkill Creek in Piermont, a small cluster of buildings and structures records the village's growth from the late 1700s through the 1870s. The district covers 5.38 acres and centers on an 1874 single-span brick arch bridge linking Ferdon Avenue and South Piermont Avenue. Most resources are houses, but the group also includes Haddock Hall, a brick commercial and civic building of 1875-76, a mid-19th-century firehouse later converted to a dwelling, and a former livery stable and storehouse on the site of an early mill and store. Two stone buildings date to about 1785 and 1800. Ferdon Hall, a Greek Revival house with a monumental portico, was built for mill owner William Ferdon. A dam marks the historic head of navigation on the creek, and the site of an old mine entrance survives. Together the resources show how mixed residential, commercial and light industrial life developed beside the water and how local building traditions changed over roughly a century.","period_of_significance":null,"architect_builder":"W.H. Hand (builder of Haddock Hall)","architectural_style":"Vernacular; Early Republic: Federal; Mid-19th Century: Greek Revival; Late Victorian: Italianate, Second Empire","criteria":[],"status_note":"Mostly residential, with some commercial use; a former firehouse is now a dwelling, and the bridge still carries two lanes of traffic.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:48.314928-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/11000709.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/11000709/17745ee1bf-800.webp","url_1600":"https://nationalhistoricalregister.com/media/11000709/17745ee1bf-1600.webp","licence":"CC BY-SA 4.0","author":"JERRYE AND ROY KLOTZ, M.D.","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:ROCKLAND_ROAD_BRIDGE_HISTORIC_DISTRICT,_PIERMONT,_ROCKLAND_COUNTY,_NY.jpg\" rel=\"noopener\">JERRYE AND ROY KLOTZ, M.D.</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:ROCKLAND_ROAD_BRIDGE_HISTORIC_DISTRICT,_PIERMONT,_ROCKLAND_COUNTY,_NY.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75321490","wikipedia":"https://en.wikipedia.org/wiki/Rockland_Road_Bridge_Historic_District","wikidata":"https://www.wikidata.org/wiki/Q23092043"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/rockland-county/rockland-road-bridge-historic-district-11000709/"}