Historic Columbia River Highway, Toothrock & Eagle Creek Viaducts, Curving around Toothrock on Historic Columbia Rive, Troutdale, Multnomah County, OR
Curving around Toothrock on Historic Columbia Rive, Troutdale vicinity, OR
Find maps of Troutdale, OR
Documentation compiled after 1968.
Survey number HAER OR-36-N
Building/structure dates: 1915 initial construction
Building/structure dates: 1937 subsequent work
National Register Number: 83004168
Part of building/structure is in Bonneville, Multnomah County, OR.
Significance: One of several half viaducts constructed on the Historic Columbia River Highway. Part of the first section of the route made redundant by a new water-level grade for U.S. 30, later a portion of Interstate 84.
Reinforced Concrete Construction
Purcell, Charles H.
Lancaster, Samuel C.
Oregon Department Of Transportation
Billner, K. P.
Metzger, Lewis W.
The Construction Company
Hadlow, Robert W., Historian
Historic American Engineering Record (Library of Congress)
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