Bridge building, Pacific Northwest history, civil engineering, main line railroading, streetcars, highways, bicycle and pedestrian facilities—they all come together in this story of the world’s only double-action, double deck vertical lift bridge.Steel Over the Willamette, published by the Pacific Northwest Chapter of the National Railway Historical Society, describes the history and operation of the Steel Bridge in Portland, Oregon. This year is the 100th anniversary of its completion. The book includes chapters on the original 1888 Steel Bridge, the current bridge’s design and construction in 1909-1912; how the complex machinery operates to raise and lower the bridge’s two decks independently; history of the eastside trolleys which traveled over the bridge until 1948; the reconstruction of the bridge for MAX light rail in the 1980s; the railroads use of the lower deck for passenger and freight trains; and a bibliography.The book has a color cover on heavy paper, 60 interior pages, saddle stitched binding, four maps and over 80 photographs illustrating the history and operation of the bridge, most never before published.