Grande Ronde River Bridge, Sprnning Grande Ronde River on Old Oregon Trail Highway (Oregon Route 6), La Grande, Union County, OR

Significance: It is a 312'-long bridge with a main span comprised of a 134'-long reinforced concrete rib deck arch over the Grande Ronde River, and a 175'-long concrete viaduct crossing over the Union Pacific Company Railroad corridor. Decorative features include open spandrel arch with arched fascia curtain walls, bush hammered inset panels and small arched openings in the balustrade railings. The structure was designed by Conde McCullough, and it is comparable in size and ornamentation to a number of deck arch bridges located on the Oregon Coast Highway, the Pacific Highway, and elsewhere...

Survey number: HAER OR-141

Building/structure dates: 1924 Initial Construction

vehicular bridges la grande or grande ronde bridge grande ronde river bridge grande ronde river oregon trail highway old oregon trail highway oregon route la grande union union county historic american engineering record david louter conde mccollough oregon department of transportation union bridge company photo ultra high resolution high resolution ornament library of congress

1969 - 1980

Library of Congress

http://www.loc.gov/

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