{"nrhp_refnum":"11000432","name":"Grand Boulevard Historic District","other_names":[],"category":"district","location":{"address":"Grand Blvd.","address_restricted":false,"city":"Corona","county":"Riverside County","state":"CA","lat":33.87423924850003,"lon":-117.56226303580445,"geom_source":"nps_gis"},"listed_date":"2011-07-14","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Landscape Architecture","Community Planning and Development","Engineering","Exploration/Settlement"],"significance_levels":["local"],"summary":{"what_it_is":"A circular landscaped boulevard district in Corona, Riverside County, California, laid out in 1886. The ring is about 1 mile in diameter with a 100-foot-wide right-of-way, roughly 3 miles around, and encloses a grid of streets.","why_significant":"The nomination presents the boulevard as a locally significant planned circular roadway with its original design and early features still in place. The excerpt does not include the Section 8 text, but it ties the boulevard to the 1913, 1914 and 1916 Corona road races. It also notes retained integrity of location, design, setting and association.","narrative":"Grand Boulevard is a circular roadway in Corona, California, laid out in 1886 about 40 miles east of Los Angeles. The ring measures one mile across with a 100-foot-wide right-of-way, and it surrounds a grid of interior streets while exterior streets meet its outer edge at various angles. The district includes the roadway, intersecting streets and alleys, driveways, curbs and gutters, parkways, sidewalks, street trees, historic streetlights, a granite hitching post and two pocket parks. Palms, silk oaks, peppers, eucalyptus and other trees line much of the circle, and 146 historic-style lamps remain from a late-1920s lighting project. The roadway was originally dirt, later oiled and paved. A monument marks the start and finish line of the 1913, 1914 and 1916 Corona road races. Location, design, setting and association remain strong, though the State Route 91 bridges, widening and new signals have altered the northern section.","period_of_significance":null,"architect_builder":null,"architectural_style":"Other: Landscaped Boulevard","criteria":[],"status_note":"Still in use as a roadway and park space. Modifications include resurfacing, traffic signals, State Route 91 bridges (1961) and a 1976 grade separation project in the northern sliver.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:29.558447-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/11000432.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/11000432/bf01e02d7b-800.webp","url_1600":"https://nationalhistoricalregister.com/media/11000432/bf01e02d7b-1600.webp","licence":"Public domain","author":"Unknown authorUnknown author","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Victoria_Street_Corona_CA_postcard.jpg\" rel=\"noopener\">Unknown authorUnknown author</a>, Public domain, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Victoria_Street_Corona_CA_postcard.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123860474","wikipedia":"https://en.wikipedia.org/wiki/Grand_Boulevard_(Corona)","wikidata":"https://www.wikidata.org/wiki/Q5594325"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/riverside-county/grand-boulevard-historic-district-11000432/"}