Anna Bligh, Queensland, Australia’s state prime minister, formally opened Brisbane’s $58-million Kurilpa “tensegrity” pedestrian and bicycle bridge on Oct. 4. Local design-build contractor Baulderstone Pty. Ltd. completed the 470-meter-long crossing, with a 120-m-long main span, to a design by Brisbane-based Cox Rayner Architects and the local office of Arup Engineers. The primary structure comprises a mesh of cables tensioned to compressive tube steel struts. Related Links: ASHRAE Developing Manuals for New 'Green' Standards Jacobs Gets Long-Term Amtrak Infrastructure Improvement Job Corps Reorganizes Mideast Operations AP1000 Reactor Design Issues Concern NRC New Island for Bahrain
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.