{"nrhp_refnum":"85003300","name":"Milestone","other_names":[],"category":"object","location":{"address":"Boylston St.","address_restricted":false,"city":"Brookline","county":"Norfolk County","state":"MA","lat":42.32877818800006,"lon":-71.13265790199995,"geom_source":"nps_gis"},"listed_date":"1985-10-17","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Transportation"],"significance_levels":["national","state","local"],"summary":{"what_it_is":"A slate milestone dated 1810 on Boylston Street (Route 9) near Warren Street in Brookline, Massachusetts, owned by the Town of Brookline. It marks the distance to Boston and was moved to its present spot beside a bus shelter.","why_significant":"The milestone was placed in 1810, the year this section of the Boston/Worcester Turnpike was completed. The turnpike replaced the older Sherburne Road as the main route west and helped Brookline Village grow into the town's commercial center. The nomination argues it meets Criterion A as part of one of the earliest 19th-century transportation routes west from Boston.","narrative":"A small slate milestone beside Boylston Street (Route 9) in Brookline carries the words \"To Boston\" and the date 1810. It sits on a grassy triangle near Warren Street, close to a bus shelter and the sidewalk. The stone has a slightly damaged top and was moved here to protect it. It is one of two known milestones in Brookline; the other, dated 1729, is on Harvard Street. The marker dates from the year this stretch of the Boston/Worcester Turnpike was finished. Construction of the turnpike began in 1806 to give traffic a more direct route west. It replaced the Sherburne Road, now Walnut and Heath Streets, which had been the town's main road west. The turnpike bypassed Brookline's first civic center and helped Brookline Village develop as the town's main commercial center through much of the nineteenth century. The milestone was listed as part of one of the earliest 19th-century routes leading west from Boston.","period_of_significance":null,"architect_builder":null,"architectural_style":null,"criteria":["A"],"status_note":"Condition fair; the top is slightly damaged and the stone was moved to its present location for preservation. Vehicle emissions from Route 9 are noted as a threat.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:11:57.321013-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/10/7927/63792710/content/electronic-records/rg-079/NPS_MA/85003300.pdf"},"photo":null,"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/63792710","wikipedia":null,"wikidata":null},"indexable":true,"url":"https://nationalhistoricalregister.com/massachusetts/norfolk-county/milestone-85003300/"}