7. The two dimensional towers are some of the few surviving features of Lindenthal’s design
Part of Lindenthal’s radical eyebar design was to use two-dimensional tower profiles rather than the three-dimensional profiles seen on the Brooklyn and Williamsburg Bridges. In the two-dimensional design, there are four columns in each tower, creating a less rigid design and allowing greater flexibility, expansion and contraction. Although the new engineer, Leon Moisseiff, implemented Lindenthal’s idea, the 322-foot tall towers support wire-spun cables that more typical of traditional suspension design.