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La Grande vicinity

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Grande Ronde River Bridge, Sprnning Grande Ronde River on Old Oregon Trail Hi, La Grande, Union County, OR



Data Pages


Photo Caption Pages


Item Title


Location
Sprnning Grande Ronde River on Old Oregon Trail Hi, La Grande vicinity, OR

Find maps of La Grande, OR


Created/Published
Documentation compiled after 1968.

Notes
Survey number HAER OR-141
Building/structure dates: 1924 initial construction
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...

Subjects
Vehicular Bridges


Related Names
McCollough, Conde
Union Bridge Company


Collection
Historic American Engineering Record (Library of Congress)

Contents
Photograph caption(s): 
Topographic view of the Grande Ronde River Bridge, view looking south
General perspective view of the Grande Ronde River Bridge, view looking southwest
General perspective view of the Grande Ronde River Bridge, view looking southwest
General perspective view of the Grande Ronde River Bridge, view looking southeast
General view of the bridge, view looking south
Elevation view of the bridge, view looking west
Approach view of the bridge, view looking south
Approach view of the bridge, view looking north
Substructure view of the main arch span, view looking southwest
Detail view of the main arch span, view looking southeast
Detail view of the reinforced concrete viaduct over the Union Pacific Railroad corridor, view looking east
Detail view of railing and bush-hammered end posts


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