The world's first large-scale floating bridge opened for traffic on July 2, 1940. The concrete roadway from Seattle to the eastern shore of Lake Washington floats on pontoons which are anchored to the lake bottom. The bridge helped the World War II war effort by shortening the commute between Seattle's eastern suburbs and the downtown industrial area. It also helped lead to the expansion of the suburbs.

This photo looks to the east over the Lake Washington Floating Bridge towards Mercer Island. The bridge has been named in memory of Lacey V. Murrow, former head of the state's highway department.

Caption on image: Lake Washington pontoon bridge, Seattle, Washington. Only concrete pontoon bridge in the world.
Photographer's Reference Number: 459