Structures which were to be inundated by the reservoir were removed before the lake started to fill. The photo appears to show the destruction of one of the piers which supported the Great Northern bridge across the Columbia at Marcus, Washington.
Boats; Ships; Universities & colleges; Lakes -- Washington (State) -- Lake Union;
University of Washington floating theater moored at the edge of Lake Union. The boat was not completed at the time it was photographed, but it was designed to be the future home of the University of Washington Theater.