JULY 31-3 Energy and Water 2011: Efficiency, Generation, Management and Climate Impacts Conference Hyatt Regency McCormick Place, Chicago. This event will bring together researchers, regulators, designers, technology developers, students, municipal agencies and utilities, facility managers and operators, industry representatives and other environmental professionals from around the world to share and debate the current state of the water-energy nexus. Technical presentations will be complemented by open discussions. For more information, visit www.wef.org/energy/.AUGUST 3-6 2011 Concrete Foundations Association Summer Convention Wintergreen Resort, Wintergreen, Va. The CFA convention is the only national event dedicated solely to the commercial and residential poured-concrete-wall industry. For
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.