In the Mangfall Bridge, built by his cantilever method but made with open truss-like walls, his idea was to dupli- cate the girder depth of the steel bridge built in the late 1930s and de- stroyed in World War II. Not only did he succeed technically, but in design- ing a two-level bridge (see Fig. 8), he provided the pedestrian with one of the most spectacular crossings since the Brooklyn Bridge in New York.