{"nrhp_refnum":"04000376","name":"CLEARWATER (Sloop)","other_names":[],"category":"structure","location":{"address":"Main St., on Hudson R","address_restricted":false,"city":"Poughkeepsie","county":"Dutchess County","state":"NY","lat":41.704753535000066,"lon":-73.94111375299997,"geom_source":"nps_gis"},"listed_date":"2004-05-04","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Other","Education","Maritime History"],"significance_levels":["national"],"summary":{"what_it_is":"A wooden Hudson River sloop, begun in 1968 and launched in 1969 at the Harvey Gamage shipyard in South Bristol, Maine. She is a full-scale replica of a mid-nineteenth century sloop, with Poughkeepsie, New York, as her nominal homeport.","why_significant":"The nomination argues that the sloop is significant under Criterion A, with Criteria Consideration G for properties less than 50 years old, for her role in the American environmental movement. As a symbol of the Clearwater organization led by Pete Seeger, she raised public awareness of river pollution and inspired citizen cleanup efforts. The nomination credits a campaign led by the Clearwater with a direct role in passage of the Clean Water Act of 1972.","narrative":"Clearwater is a 70-foot wooden sloop built as a full-scale replica of a mid-nineteenth century Hudson River sloop. Begun in 1968 and launched in Maine in 1969, she has a plank-on-frame hull, a single mast with topmast, a gaff mainsail and a Canada goose figurehead. Designed by naval architect Cyrus Hamlin and built at the Harvey Gamage shipyard, she carries a modern diesel engine and safety features but otherwise closely follows the appearance and construction of the historic sloops. Her importance lies in the environmental movement. Folk singer Pete Seeger proposed building a boat to save the Hudson River, and the sloop became a symbol of efforts to clean up polluted American rivers. Through concerts, voyages and educational work, she drew national attention to river pollution. The nomination credits a campaign led by the Clearwater with a direct role in passage of the Clean Water Act of 1972. She remains in use as a floating classroom.","period_of_significance":"1968-1972","architect_builder":"Cyrus Hamlin, naval architect; Harvey Gamage shipyard, South Bristol, ME","architectural_style":"Other: Hudson River Sloop","criteria":["A"],"status_note":"Current functions are listed as transportation (ship) and education (outdoor classroom). The sloop is docked for the winter at Saugerties, New York.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:51:52.694685-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/04000376.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/04000376/4ca3176226-800.webp","url_1600":"https://nationalhistoricalregister.com/media/04000376/4ca3176226-1600.webp","licence":"CC BY 3.0","author":"Dxede5x","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Sloop_Clearwater3_-_Photo_by_Anthony_Pepitone.jpg\" rel=\"noopener\">Dxede5x</a>, <a href=\"https://creativecommons.org/licenses/by/3.0\" rel=\"license noopener\">CC BY 3.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Sloop_Clearwater3_-_Photo_by_Anthony_Pepitone.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75317319","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q119520035"},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/dutchess-county/clearwater-sloop-04000376/"}