The global challenge of managing innovation—and the risks that come with it—galvanized a record crowd of international engineers meeting in New Delhi, India, last month, as they struggle to raise the profession’s image worldwide and tackle the planet’s growing problems. Photo: Neelam Mathews International design-firms group FIDIC reports a record attendance at its conference last month in New Delhi. “In order for us to be innovative, it is time for our profession to be accorded higher standards so we’re not looked at as a commodity to be bought at the lowest price,” Gregs Thomopulos, president of the International Federation of
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.