GRAHAM Bruce J. Graham, a nearly 30-year partner of Chicago architecture giant Skidmore, Owings & Merrill and a driver of high-rise designs that now define the Windy City’s skyline, died on March 6 in Hobe Sound, Fla., at age 84. The cause was complication of Alzheimer’s disease, say published reports. Graham, degreed in both architecture and civil engineering, led design of Chicago’s first two buildings to reach or exceed 100 stories: the John Hancock Center in 1970 and the Sears Tower in 1974. Graham, who joined SOM in 1951 and was partner from 1960 until he left in 1989, pushed
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.