{"nrhp_refnum":"10000506","name":"Charles River Reservation (Speedway)-Upper Basin Headquarters","other_names":["Charles River Speedway Headquarters","Speedway Complex"],"category":"building","location":{"address":"1420-1440 Soldiers Field Rd","address_restricted":false,"city":"Boston","county":"Suffolk County","state":"MA","lat":42.36143000000004,"lon":-71.14639999999997,"geom_source":"nps_gis"},"listed_date":"2010-07-19","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Community Planning and Development"],"significance_levels":["local"],"summary":{"what_it_is":"A complex of connected Shingle and Colonial Revival style buildings at 1420-1440 Soldiers Field Road (also 525 Western Avenue) in the Brighton section of Boston, begun in 1899 as the headquarters for the Charles River Speedway harness-racing track.","why_significant":"It is a surviving early piece of the Metropolitan Park System of Greater Boston and the first permanent development in the Charles River Reservation. Its mix of superintendent's residence, park headquarters and police station helped set the standard for administrative facilities in other reservations. It is also valued for its Shingle and Colonial Revival design by William D. Austin and its link to landscape architects Charles Eliot and the Olmsted Brothers.","narrative":"Along the curve of Soldiers Field Road and Western Avenue in Brighton, a string of connected shingle-clad buildings forms the former headquarters of the Charles River Speedway. Construction began in 1899 to serve a mile-long harness-racing track, the first permanent project in the Charles River Reservation. The buildings reached their present form in 1925, when a stable was remodeled as a police station. A concrete maintenance garage was added in 1940. Architect William D. Austin blended Shingle and Colonial Revival styles, producing residential-scale buildings with fieldstone foundations, multiple gables, overhanging second stories, conical-roofed towers and elaborate door surrounds. The complex held a superintendent's residence, park offices and a police station, an arrangement that influenced later park facilities. Landscape plans trace to Charles Eliot and the Olmsted firm. Listed for its role in the regional park system and for its architecture, the group is now vacant and in need of repair, with its main street elevations little altered.","period_of_significance":"1899 to 1960","architect_builder":"William D. Austin (Stickney and Austin) (architect); Charles Eliot, Olmsted Brothers (landscape architects)","architectural_style":"Late Victorian: Shingle Style; Late 19th and Early 20th Century Revival: Colonial Revival","criteria":["A","C"],"status_note":"Currently vacant and in need of repair; the wood-frame components are in fair to poor condition, though alterations to the most visible elevations are minimal.","vacant_flag":true,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:10:51.745668-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/54/7970/63797054/content/electronic-records/rg-079/NPS_MA/10000506.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/10000506/01713472df-800.webp","url_1600":"https://nationalhistoricalregister.com/media/10000506/01713472df-1600.webp","licence":"Public domain","author":"Unknown authorUnknown author","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:CharlesRiverSpeedwayHeadquarters1900.png\" rel=\"noopener\">Unknown authorUnknown author</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:CharlesRiverSpeedwayHeadquarters1900.png"},"district":{"nrhp_refnum":"05001530","name":"Charles River Reservation Parkways","url":"https://nationalhistoricalregister.com/districts/massachusetts/charles-river-reservation-parkways-05001530/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63797054","wikipedia":"https://en.wikipedia.org/wiki/Charles_River_Reservation_(Speedway)-Upper_Basin_Headquarters","wikidata":"https://www.wikidata.org/wiki/Q5082082"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/suffolk-county/charles-river-reservation-speedway-upper-basin-headquarters-10000506/"}