Historic Columbia River Highway, Sandy River Bridge at Troutdale, Historic Columbia River Highway spanning Sandy River, Troutdale, Multnomah County, OR

Significance: First modern bridge constructed on what became the Historic Columbia River Highway. Designed by the premier bridge engineering firm of Waddell and Harrington, which also created the 1912 Steel Bridge, a through double-deck vertical lift truss of telescoping design, and the 1910 Hawthorne Bridge, a through vertical lift truss, both over the Willamette River in Portland.

Survey number: HAER OR-36-A

Building/structure dates: 1912 Initial Construction

Building/structure dates: 1938 Subsequent Work

Building/structure dates: after. 1950- before. 1959 Subsequent Work

National Register of Historic Places NRIS Number: 83004168

steel truss bridges transportation vehicular bridges pedestrian bridges multnomah county historic columbia highway historic columbia river highway sandy bridge sandy river bridge troutdale sandy river multnomah oregon e a collier brian grogan robert w hadlow historic american engineering record conde b mccullough oregon bridge and construction company oregon department of transportation lisa m pfueller waddell and harrington photo ultra high resolution high resolution double deck library of congress national register of historic places

1969 - 1980

Library of Congress

http://www.loc.gov/

No known restrictions on images made by the U.S. Government; images copied from other sources may be restricted. http://www.loc.gov/rr/print/res/114_habs.html