Engineer and professor emeritus Alan G. Davenport, a pioneer in wind engineering for buildings and bridges, died on July 19 at age 76 after a long struggle with Parkinson’s disease. Models for many of the world’s tallest and longest structures ended up in the hands and wind tunnel of Davenport, one of the first to use wind tunnels in the design of structures. An engineering professor at the University of Western Ontario, he founded its renowned Boundary Layer Wind Tunnel Laboratory in 1965. He consulted on the designs of New York City’s World Trade Center, Chicago’s Sears Tower, Toronto’s CN
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.