{"nrhp_refnum":"99000158","name":"Georgia Street Bridge-Caltrans Bridge","other_names":["57c-418"],"category":"structure","location":{"address":"Georgia St. and University Ave., bet. Florida St. and Park Blvd.","address_restricted":false,"city":"San Diego","county":"San Diego County","state":"CA","lat":32.748549155000035,"lon":-117.14539761399999,"geom_source":"nps_gis"},"listed_date":"1999-02-12","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Architecture","Engineering","Transportation"],"significance_levels":["local"],"summary":{"what_it_is":"A 1914 three-hinged reinforced concrete open-spandrel arch bridge carrying Georgia Street over University Avenue in San Diego, California, together with two flanking concrete retaining walls along the University Avenue grade separation cut.","why_significant":"The nomination argues it is significant under Criterion A as a cooperative public works project between the City and the San Diego Electric Railway that improved streetcar and automobile access and supported growth of eastern streetcar suburbs. It is significant under Criterion C as an example of early California reinforced concrete bridge construction designed by city engineer James R. Comly.","narrative":"Completed in 1914, the Georgia Street Bridge carries two lanes of traffic and cantilevered sidewalks over University Avenue in San Diego, between the Uptown and North Park communities. Its deck rests on three parabolic reinforced concrete ribbed arches, hinged at the ends and mid-span, which also help hold back the tall concrete retaining walls of the University Avenue cut. Each wall runs about 680 feet and has a blind arcade of arches that echoes the bridge. City engineer James R. Comly designed it and Edward T. Hale built it. The project grew from a partnership between the City and the San Diego Electric Railway, whose streetcars passed beneath the bridge until 1949 and helped build up suburbs such as City Heights and North Park. The structure is valued as a fine early example of California reinforced concrete bridge building and as a monumental gateway. Alterations include filled-in railings, a gunite coating and missing lampposts, but it keeps its overall character.","period_of_significance":"1914-1949","architect_builder":"James R. Comly, C.E. (designer); Edward T. Hale (builder)","architectural_style":"Three-hinged Reinforced Concrete Open Spandrel Arch Bridge; Reinforced Concrete Blind Arcade Retaining Wall and Railings","criteria":["A","C"],"status_note":"Still in use as a vehicular bridge and road with sidewalks; streetcar service ended in 1949 and the tracks were paved over. Railings were filled in and the surfaces were coated with gunite.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:28.265132-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/99000158.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/99000158/8ec6ddc81e-800.webp","url_1600":"https://nationalhistoricalregister.com/media/99000158/8ec6ddc81e-1600.webp","licence":"CC BY-SA 2.0","author":"Eli Pousson","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Georgia_Street_Bridge,_San_Diego.jpg\" rel=\"noopener\">Eli Pousson</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.0\" rel=\"license noopener\">CC BY-SA 2.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Georgia_Street_Bridge,_San_Diego.jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123860865","wikipedia":"https://en.wikipedia.org/wiki/Georgia_Street_Bridge%E2%80%93Caltrans_Bridge","wikidata":"https://www.wikidata.org/wiki/Q5493451"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-diego-county/georgia-street-bridge-caltrans-bridge-99000158/"}