China three gorges dam worlds largest dam may be in danger of collapsing after flood and rain on yangtze river 20200727 p5xwiy.html – Breaking News & Latest Updates 2026
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Three Gorges Dam, the world's largest, may be in danger of breaching

Inga Neilsen

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China's Three Gorges Dam is being tested to its limits as widespread flooding continues along the upper reaches of the Yangtze River, with all of its major arteries already swamped.

Constant rain has raised concerns about the integrity of the dam in recent weeks.

Officials deny claims the dam is in danger of collapsing, but experts disagree.

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Floodwaters are discharged at the Three Gorges Dam in central China's Hubei province on Sunday, July 19, 2020. AP/AAP

Fan Xiao, chief engineer with Sichuan's Provincial Bureau of Geology and Mineral Resources says the dam has only held 9 per cent of this year's Yangtze floods.

"The dam can only temporarily intercept flooding upstream, but it can do nothing to the flooding from heavy rains in the middle and lower reaches of the Yangtze," Mr Xiao told the Asia Times.

Mr Xiao went on to suggest that large cement structures such as the Three Gorges Dam may even exacerbate flooding, by altering flows in the rivers' lower reaches.

Engorged with more heavy rains, Chinas mighty Yangtze River is cresting again, bringing fears of further destruction as seasonal floods that already have left more than a hundred people dead or missing have grown in force since last month.  AP/AAP

READ MORE: Record China flooding impacts PPE supply chain to US as COVID-19 crisis deepens

Heavy rain has battered central and southern China over the past few weeks, the worst in decades – floods impacting more than 45 million people in China's 27 provinces since the beginning of June this year.

This has mounted an economic cost of 116 billion yuan (A$23.3 billion).

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According to the Ministry of Emergency Management, as of July 23, 142 people were dead or missing and 35,000 houses had collapsed due to floods.

Flooding is not new to China, in 1993 floods killed 2 million people and in 1998 one-fifth of the country's population was affected, more than 3,000 people died and cost more than $28 billion, according to Government estimates.

Authorities in the neighboring province of Anhui blasted a dam Sunday to release surging waters behind it amid widespread flooding across the country that has claimed scores of lives. AP/AAP

China began building the controversial Three Gorges Dam in 1994 as part of the government's heavy investment in flood control projects.

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It is the world's largest hydroelectricity dam spanning Asia's longest river, the Yangtze, and has an average capacity three times its counterparts built prior to 2000.

The mega-dam is capable of handling inflows of up to 83.7 million litres per second, with the most recent peak inflow reaching over 60 million litres last week.

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