Keith Howells, newly installed chairman of London-based global design firm Mott MacDonald Group, is optimistic that Dubai’s gradual emergence from its real estate slump will boost the firm’s fortunes this year. Mott’s recent award of a design contract on the $6-billion Dubai Pearl mixed-use project supports his view that the emirate’s construction market is climbing “off the floor.” Photo: Courtesy of Mott MacDonald Group Keith Howells takes over as chairman of Mott MacDonald Group just as the firm wins a design award on a $6-billion Dubai development. Mott’s work involves design of mechanical, electrical, public health, fire, communications and security
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.