China says Three Gorges Dam safe after satellite images show structure 'at risk of collapse'

China's controversial Three Gorges Dam, the world's biggest hydropower project, is structurally sound, officials said, denying rumours on social media it was at risk of collapse.

Safety experts with the government-run China Three Gorges Corporation said on its official website that the Yangtze River dam had moved a few millimetres due to temperature and water level changes, but safety indicators remained well within their normal range.

They were responding to a Twitter user who posted satellite photos from Google Maps last week purporting to show the dam had bent and was at risk of breaking. The photos were circulated on domestic social media, sparking concerns over its structural integrity.

The central government said the problem was with the satellite imaging, rather than the dam, the Caixin financial news service reported on Tuesday, citing a statement.

The state-owned China Aerospace Science and Technology Corporation released high-definition satellite images of the dam on its Weibo account to show that the project 'has no problems at all'. 

The 185-meter Three Gorges Dam has been one of China's most expensive and most controversial engineering projects, submerging entire villages, displacing millions of people and disrupting ecosystems. 

Critics say it has also increased earthquake and landslide risks in the region. 

In 2011, five years after the dam was built, China admitted the project had caused widespread social and environmental damage and promised 124 billion yuan (£14 billion) in extra funding. 

A parliamentary delegate said this year that half of the promised money had still not been paid out.  

Fan Xiao, a Chinese geologist and long-standing critic of giant dam projects, said the rumors reflected the lack of debate about the Three Gorges project, which was now considered a 'national treasure' that should not be criticized.

'If talking about problems is stigmatized, then it is nothing more than putting one's head in the sand and deceiving oneself,' Fan posted on his WeChat account on Monday. 

'It will sole no problems and could make them worse,' he added.

Fully functional in 2012, the 248 million yuan (£29 million) Three Gorges Dam is the world's largest in terms of electricity generating capacity, which can reach 22,500 megawatts, according to South China Morning Post. The entire project consists of a dam and five-tier ship lock, in addition to 32 generators.

Source: Daily Mail

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