Traces the history of tunnel-building in America, from the earliest days of the Schuylkill Navigation Tunnel to the complex technology of today's immersed-tube tunnels.
Reviews the history of road building in the U.S. from the first paved streets of colonial times, to the early western wagon trails, and to today's Interstate Highway System.
Traces the history of bridges in America, focusing on the people and technology involved in the construction of wooden, iron, suspension, cantilever, and modern-day bridges.
Traces the history of canals and canal building in America, from the first American canals to the building of the Panama Canal and the recent work done on the Illinois Waterway.
