Waddell & Harrington
American engineering company
Waddell & Harrington was an American engineering company that designed bridges from 1907 to 1915. It was formed in 1907 as a partnership of John Alexander Low Waddell (1854–1938) and John Lyle Harrington (1868–1942) and was based in Kansas City, Missouri, but had offices in Portland, Oregon, and Vancouver, British Columbia. The company designed more than 30 vertical-lift bridges for highways and railroads.
The firm also designed one or more non-lift bridges, including the Colorado Street Bridge of Pasadena, California.
A number of its works are listed on the U.S. National Register of Historic Places (NRHP).
Notable projects
Bridges designed by the firm include the following, among others:
Hawthorne Bridge, spanning the Willamette River in Portland, Oregon, NRHP-listed
Interstate Bridge, spanning the Columbia River between Portland, Oregon, and Vancouver, Washington; NRHP-listed (as the Portland–Vancouver Highway Bridge)
Steel Bridge, spanning the Willamette River in Portland
Iowa Central Railway Bridge over the Mississippi River at Keithsburg, Illinois, built in 1909, since demolished
Caddo Lake Bridge, LA 538, over the Caddo Lake Mooringsport, LA, NRHP-listed
City Waterway Bridge, 20th Ave., Spans Ravenna Park Ravine Tacoma, WA, NRHP-listed
Colorado Street Bridge, Colorado Blvd. Pasadena, CA, NRHP-listed
North 21st Street Bridge, spans Buckley Gulch, N. Fife and Oakes Tacoma, WA, NRHP-listed
North 23rd Street Bridge, spans Buckley Gulch, N. Fife and Oakes Tacoma, WA, NRHP-listed
Union Street Railroad Bridge and Trestle, Jct of Union St. NE and Water St.
“Waddell & Harrington” enters the record as american engineering company. Crown Archives preserves that source wording while asking what Waddell, Harrington and American can confirm, complicate or overturn.
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“Waddell & Harrington” is worth following because a concise public description often conceals a longer documentary argument. Here, Waddell, Harrington and American provides the most credible route into that argument.
The record creator and administrative purpose are central evidence, because official documentation reflects both action and institutional priorities. The source revision retrieved here is dated Aug 17, 2025. The linked authority identifier is Q7958964. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1907, 1915, 1854 and 1938.
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This entry incorporates text from “Waddell & Harrington” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.