This week, ENR writes the next chapter in its historic coverage of the 16-acre World Trade Center site in Lower Manhattan. More than 100 articles have been filed over the years. The first was in 1958, when “New Face for Lower Manhattan” described the $1-billion plan—delivered to Mayor Robert F. Wagner—that would bring sharp changes to the financial district.We trace the “World Trade Center Over Time” through the pages of ENR since that first story.In the 1960s, ENR wrote about the controversies surrounding the proposed development, including stories about the team, the design, the wind-tunnel tests, construction of the slurry-wall
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.