{"nrhp_refnum":"04000249","name":"Alewife Brook Parkway","other_names":[],"category":"district","location":{"address":"Alewife Brook Parkway","address_restricted":false,"city":"Cambridge","county":"Middlesex County","state":"MA","lat":42.41055800000004,"lon":-71.13148462230212,"geom_source":"nps_gis"},"listed_date":"2004-03-18","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Conservation","Community Planning and Development","Engineering","Landscape Architecture","Transportation"],"significance_levels":["state"],"summary":{"what_it_is":"A one-mile northern segment of the Alewife Brook Parkway, a four-lane river parkway in Cambridge and Somerville, Middlesex County, Massachusetts, running from Mystic Valley Parkway to the Concord Turnpike/Route 2 rotary. It was built by the Metropolitan Park Commission between 1908 and 1930.","why_significant":"The parkway is presented as an early river parkway proposed by Olmsted, Olmsted and Eliot and designed by Olmsted Brothers, illustrating the firm's principles of parkway creation. It meets Criteria A and C in community planning and development, engineering, landscape architecture and transportation at the local level. The northern segment retains integrity, while the southern segment was rebuilt in the 1980s and excluded.","narrative":"Alewife Brook Parkway's northern segment is a one-mile, four-lane road in Cambridge and Somerville that follows Alewife Brook and the 120-acre Alewife Brook Reservation. It begins at a turf rotary at Mystic Valley Parkway and runs south to the Concord Turnpike/Route 2 rotary, with granite curbing, planted strips, tree-lined parkland and a second rotary at Powder House Boulevard. The route traces an idea Charles Eliot floated in 1892 for a north-side parkway linking the Mystic River with Fresh Pond. The Metropolitan Park Commission acquired land beginning in 1908, dug a new brook channel, and opened the road from Mystic Valley Parkway to Massachusetts Avenue in December 1916. State public works crews finished the extension in 1929-1930, and the roadway was widened in the 1930s. Designed by Olmsted Brothers, it is considered a representative river parkway and keeps its original location, design, setting and feeling. Its recognized period of significance runs from 1908 through 1956.","period_of_significance":"1908-1956","architect_builder":"Charles Eliot, Olmsted Brothers","architectural_style":null,"criteria":["A","C"],"status_note":"Heavily traveled four-lane road, also designated State Route 16, administered by the Department of Conservation and Recreation; the southern segment was extensively reworked in the 1980s and 1990s and is excluded.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:13:04.89731-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/38/7920/63792038/content/electronic-records/rg-079/NPS_MA/04000249.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/04000249/5c749b3320-800.webp","url_1600":"https://nationalhistoricalregister.com/media/04000249/5c749b3320-1600.webp","licence":"CC BY-SA 4.0","author":"User:Magicpiano","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:AlewifeBrookParkway_at_PowderHouseBlvd.jpg\" rel=\"noopener\">User:Magicpiano</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:AlewifeBrookParkway_at_PowderHouseBlvd.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63792038","wikipedia":"https://en.wikipedia.org/wiki/Alewife_Brook_Parkway","wikidata":"https://www.wikidata.org/wiki/Q2484254"},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/middlesex-county/alewife-brook-parkway-04000249/"}