How many displaced by Three Gorges Dam?

While the construction of the Three Gorges Dam was an engineering feat, it has also been fraught with controversy: construction of the dam caused the displacement of at least 1.3 million people and the destruction of natural features and countless rare architectural and archaeological sites.



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And for about 4 million people, the dam project was mostly a disaster, as it flooded 13 cities, 140 towns, and 1,352 villages.

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HUANGTUPO, China (Reuters) - China relocated 1.3 million people during the 17 years it took to complete the Three Gorges dam.

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Building the Three Gorges Dam displaced more people than the three largest Chinese dams before it combined. The reservoir submerged two cities, 114 towns and 1,680 villages along the river banks.

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Dam construction has played significant roles in flood control, irrigation, navigation, and energy supply; however, the enormous negative effects, such as landslides, ecological problems, and water quality decline, could surpass positive gains.

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To make way for the Three Gorges Dam, 1.5 million people will have to abandon their homes. More than 160,000 citizens have already been relocated. Upon the dam's completion, 1,300 known archeological sites will be lost forever under water. Over 265 billion gallons of raw sewage are dumped into the Yangtze annually.

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Parker Dam is a concrete arch structure commonly called the 'deepest dam in the world'.

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The failure of the South Fork Dam, which affected Johnstown, is currently regarded as the worst dam failure in U.S. history. About eight miles to the east of Johnstown, Pennsylvania, was where the South Fork Dam, a rock and earthen dam, was built.

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Three Gorges Dam, China is the world's largest hydroelectric facility. Accroding to Wikimedia, the Three Gorges Dam is a hydroelectric gravity dam that spans the Yangtze River by the town of Sandouping, in Yiling District, Yichang, Hubei province, China.

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Above all, it was sustainable. The dam cut coal consumption by 6 million tons each year, according to the World Bank estimates. However, building it required access to international expertise and experts in the field capable of completing such a complex project.

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While the dam is expected to last for centuries, engineers predict the structure could last for more than 10,000 years, surpassing most remnants of human civilization if humans were to disappear from the earth. However, they also predict the dam's turbines without human intervention would shut down within two years.

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The spillways have been used twice. The first time, in 1941, was a test of the system. The second time, in 1983, was for a flood.

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