{"nrhp_refnum":"96001127","name":"Port Arthur-Orange Bridge","other_names":["Rainbow Bridge","SH 87 Bridge at the Neches R.","Jf0306-03-015"],"category":"structure","location":{"address":"TX 87 at the Jefferson and Orange Cnty. line","address_restricted":false,"city":"Groves","county":"Jefferson County","state":"TX","lat":29.99088691700007,"lon":-93.86954170499996,"geom_source":"nps_gis"},"listed_date":"1996-10-10","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Engineering"],"significance_levels":["state"],"summary":{"what_it_is":"A 7,752-foot cantilever through truss highway bridge carrying SH 87 over the Neches River at the Jefferson and Orange county line near Groves, Texas, built 1936-1938 by the Texas Highway Department with consulting engineers and contractors.","why_significant":"The bridge was built as a Public Works Administration project, linking it to Depression-era federal work relief, which supports significance in transportation at the state level. Its innovative design and construction methods, including tall triangular steel tower piers and a 177-foot vertical clearance, support significance in engineering.","narrative":"Spanning the Neches River between Port Arthur and Orange on State Highway 87, this cantilever truss bridge is 7,752 feet long and provides a vertical clearance of 177 feet and a horizontal clearance of 600 feet. Built from 1936 to 1938, it replaced a ferry crossing that had proved inadequate for heavy weekend traffic. State Bridge Engineer George Wickline developed the preliminary design and oversaw construction, while consulting engineers finalized plans. Triangular steel tower piers were designed to resist hurricane-force winds, and foundations were sunk deep into marshy ground. Federal Public Works Administration funds covered part of the cost, tying the project to Depression-era relief efforts. The bridge was renamed Rainbow Bridge in 1957, and a second span, the Veterans Memorial Bridge, was added in 1991 for northbound traffic. It is significant for its association with public works programs and for its innovative engineering.","period_of_significance":"1936-1938","architect_builder":"Bridge Designer: Texas Highway Department; Ash-Howard-Needles & Tammen (consulting engineers); Truss Fabricator: Fort Pitt Bridge Works, Jones & Laughlin Steel Corp.; Builders: Union Bridge & Construction Co. (substructure), Taylor-Fitcher Steel Construction Co. (superstructure)","architectural_style":"Other: cantilever through truss bridge","criteria":["A","C"],"status_note":"Still used for vehicular transportation; an upgrade replacing approach spans and rebuilding the deck was underway and due for completion in 1996.","vacant_flag":false,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:23.288695-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/opastorage/live/17/9697/40969717/content/electronic-records/rg-079/NPS_TX/96001127.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/96001127/670314c85a-800.webp","url_1600":"https://nationalhistoricalregister.com/media/96001127/670314c85a-1600.webp","licence":"CC BY-SA 2.5","author":"Aren Cambre","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:RainbowBridge_(Texas).jpg\" rel=\"noopener\">Aren Cambre</a>, <a href=\"https://creativecommons.org/licenses/by-sa/2.5\" rel=\"license noopener\">CC BY-SA 2.5</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:RainbowBridge_(Texas).jpg"},"district":null,"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/40969717","wikipedia":"https://en.wikipedia.org/wiki/Rainbow_Bridge_%26_Veterans_Memorial_Bridge_(Texas)","wikidata":"https://www.wikidata.org/wiki/Q2127916"},"indexable":true,"url":"https://nationalhistoricalregister.com/texas/jefferson-county/port-arthur-orange-bridge-96001127/"}