What it is like to design and build a structure to span the most traveled river in America? Why was a cable-stayed design chosen? How do the towers, cables, and deck structure work together to handle the seismic and physical forces at work on the bridge? How is the bridge deck and road surface put in place? How is the bridge connected to the roads used for access and egress? Learn the answers to these questions and more afrom engineers, designers and constructors who built this new bridge over the Mississippi River in St. Louis.