Design and Engineering

A detail of a viaduct descriptiion
A detail of a description of viaducts on the historic highway. (Library of Congress, Prints & Photographs Division, HAER ORE, 26-TROUT.V1- (sheet 13 of 27)​)
Many of the images and descriptions in this section are adapted from the Historic American Engineering Record (HAER) documentation of the Historic Columbia River Highway.  Diagrams, maps, images and text explain key construction features such as highway alignment, bridges, viaducts, tunnels and the use of masonry. Vintage postcards as well as historic and scenic photographs further illustrate the descriptions.

Marrying Art and Science