{"nrhp_refnum":"90002143","name":"Bronx River Parkway Reservation","other_names":[],"category":"district","location":{"address":"Bronx River Pkwy. from jct. with Sprain Brook Rd. to and including Kensico Dam Plaza","address_restricted":false,"city":"Bronxville","county":"Westchester County","state":"NY","lat":41.001871592500066,"lon":-73.80277910877365,"geom_source":"nps_gis"},"listed_date":"1991-01-11","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Landscape Architecture","Conservation","Engineering","Transportation","Entertainment/Recreation","Architecture"],"significance_levels":["local"],"summary":{"what_it_is":"A roughly 10-mile stretch of the Bronx River Parkway Reservation in Westchester County, New York, running from Sprain Brook Road near Bronxville north to the Kensico Dam Plaza. It comprises the re-routed Bronx River, a limited-access parkway and the designed parkland around them, planned and built between 1906 and 1925.","why_significant":"The nomination presents the reservation as a landscape-designed parkway that kept the river valley's naturalistic character and retained a high degree of integrity. It notes innovations such as splitting the roadway into separate drives, an idea that later led to the highway median strip, and the use of stone-faced reinforced concrete bridges designed jointly by engineers and architects. The Westchester County Center, built within the reservation in 1927-1930, is also included.","narrative":"Running about ten miles through Westchester County, the Bronx River Parkway Reservation combines a limited-access parkway, a cleaned and re-routed river, and a designed landscape of forests, meadows, lakes and footpaths. It was planned and built between 1906 and 1925, with Hermann Merkel directing the landscape design and Jay Downer, Leslie Holleran and Arthur Hayden handling engineering. Bridges of reinforced concrete faced in native granite were meant to blend into the scenery, and many were designed by architects such as Charles W. Stoughton and the firm of Delano & Aldrich. Two stone service stations in Crestwood were made to resemble small houses. The parkway was split into separate roadways in places to preserve trees, an idea later seen in highway medians. The Westchester County Center, an Art Deco auditorium completed around 1930, sits beside the parkway. The nominated section was kept intact, while the altered southern third was left out.","period_of_significance":null,"architect_builder":"Hermann Merkel (landscape architect); Gilmore Clarke; Jay Downer, Leslie Holleran and Arthur Hayden (engineers); bridge architects Charles W. Stoughton, Carrere & Hastings, Delano & Aldrich, Palmer & Hornbostel, Bowdoin & Webster; Penrose V. Stout (service stations); Walker & Gillette (County Center)","architectural_style":"No style (County Center described as Art Deco in character)","criteria":[],"status_note":"The nominated section retains its integrity to a very high degree and remains in use as a parkway and park. The southern third was excluded because of alterations. The County Center was rehabilitated in 1984-88.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:50:46.116118-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_NY/90002143.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/75322971","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/new-york/westchester-county/bronx-river-parkway-reservation-90002143/"}