• Lake Washington Floating Bridge (former) - Seattle WA
    "Constructed in just 18 months, the first bridge across Lake Washington opened on July 2, 1940. Funded partly by the Public Works Administration, the pontoon bridge was an engineering marvel, the longest floating span in the world at that time. The toll bridge made possible the expansion of suburban communities on the eastside. Fifty years after it opened, on November 25, 1990, the bridge failed. Several pontoon sunk and the roadway ripped apart in the face of severe winds and waves. The destroyed span was soon replaced."