Construction began in May on a new headquarters complex for the European Central Bank in Frankfurt’s Ostend district, flanking the Main River. Designed by Coop Himmelb(l)au, based in Vienna, the energy-efficient design includes a geothermal heating system. Gassmann + Grossmann Baumanagement GmbH is the construction manager on the project. It is expected to be completed by 2014, at a cost of $1.05 billion. The 12-hectare site was formerly home to the Grossmarkthalle, the city’s wholesale produce market; the 12,500-sq-meter market building is being restored and incorporated as part of the bank complex. The complex’s centerpiece will be two towers linked
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.