China Three Gorges Corporation China Three Gorges Corporation The China Three Gorges Corporation (CTG, ) is a Chinese state-owned power company, established on 27 September 1993. The company was responsible for construction of the Three Gorges Dam-project, the world largest hydroelectric power plant, that went into operation in 2008. In September 2002, CTG established the subsidiary company China Yangtze Power, which took over operations and management of Gezhouba and Three Gorges dams. CTG is one of the world's largest energy companies with total assets of RMB 475.5 billion (app. USD 77.3 billion) in 2014. Apart Gezhouba and Three Gorges CTG operates and develops more
Risks to the Glen Canyon Dam of between 500–700 years. Glen Canyon Dam is a concrete arch dam on the Colorado River in northern Arizona in the United States, just north of Page. The dam was built to provide hydroelectricity and flow regulation from the upper Colorado River Basin to the lower. Its reservoir is called Lake Powell, and is the second largest artificial lake in the country, extending upriver well into Utah. The dam is named for Glen Canyon, a colorful series of gorges, most of which now lies under the reservoir. Construction of Glen Canyon Dam started in 1956 and was not finished until