{"nrhp_refnum":"97000969","name":"Charlestown Heights","other_names":["Ensign John J. Doherty, Playground"],"category":"site","location":{"address":"Roughly bounded by St. Martin, Bunker Hill, Medford, and Sackville Sts.","address_restricted":false,"city":"Boston","county":"Suffolk County","state":"MA","lat":42.382474111500045,"lon":-71.06755115148351,"geom_source":"nps_gis"},"listed_date":"1998-01-08","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Community Planning and Development","Entertainment/Recreation","Landscape Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"Charlestown Heights (also known as Doherty Playground) is a 3.8-acre hillside urban park overlooking the Mystic River in Charlestown, Boston, Massachusetts. It was designed in 1891 by F. L. Olmsted & Co. on land the city acquired in 1876.","why_significant":"The nomination presents it as one of the earliest parks in Boston and one of five designed by F. L. Olmsted & Co. for densely crowded urban neighborhoods. Its three-part plan, with a promenade, central play area and picturesque hillside, remains largely intact. The Moderne pool and bathhouse complex, funded by the George Robert White Fund in 1949, is also counted as a resource.","narrative":"Charlestown Heights, also called Doherty Playground, is a 3.8-acre public park on the northern slope of Bunker Hill in Charlestown, Boston. F. L. Olmsted & Co. designed it in 1891 on land the city bought in 1876. It is one of five Olmsted parks created for crowded urban neighborhoods. The plan follows the hillside's topography in three parts: a shaded upper promenade with a granite fountain along Bunker Hill Street, a central play area, and a steep, rugged lower slope with a terraced overlook, winding paths and boulder steps. The play area has changed most, with a Moderne concrete bathhouse and swimming pool complex added in 1949 and later basketball courts. The promenade keeps its character, while the lower hillside is overgrown and partly damaged. Industrial development along the river has altered the views the park once offered. The park is valued as a surviving example of Olmsted's urban park design, with the pool complex as a notable mid-century addition.","period_of_significance":null,"architect_builder":"F. L. Olmsted & Co. (park design); John M. Gray Company, Architects (pool complex, for the George Robert White Fund)","architectural_style":"Park/Other: urban designed landscape; Pool complex: Moderne","criteria":[],"status_note":"Still in use as a public park and recreation area. The pool was renovated in 1989 and is in good condition, while the lower hillside has suffered from deferred maintenance and vandalism.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:13:04.921015-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/56/7970/63797056/content/electronic-records/rg-079/NPS_MA/97000969.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/97000969/ad3d816356-800.webp","url_1600":"https://nationalhistoricalregister.com/media/97000969/ad3d816356-1600.webp","licence":"CC BY-SA 3.0","author":"Thaidragon27","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Charlestown_Heights,_Monument_square.JPG\" rel=\"noopener\">Thaidragon27</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:Charlestown_Heights,_Monument_square.JPG"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63797056","wikipedia":"https://en.wikipedia.org/wiki/Charlestown_Heights","wikidata":"https://www.wikidata.org/wiki/Q5084216"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/suffolk-county/charlestown-heights-97000969/"}