Information on the bridges (above) is courtesy of Sharon Wood Wortman, author of, 'The Portland Bridge Book,' which won a silver award from Independent Publishers.

 

The big river bridges of Portland-Vancouver are profiled with photographs and drawings from the Historic American Engineering Study of the Willamette River bridges for the National Park Service/Library of Congress in 1999 and includes poetry, maps, a chapter on How and Why Bridges are Built (by Ed Wortman), a glossary, Portland Transportation History Timeline, with emphasis on construction of the WRBs, many illustrations and drawings, and stories.