China's Three Gorges Dam - Indian Express 

The world's largest hydroelectric dam in China, called the "Three Gorges Dam" is a very huge infrastructure project and its size is so big that it has affected the spin of Earth.

Three Gorges Dam

• Location: On the Yangtze River in China’s Hubei Province.
• About: The world’s largest hydroelectric power station completed in 2012 after nearly two decades of construction.
• Dimensions: 2,335 metres (7,660 feet) long and 185 metres (607 feet) high.
• Capacity: 40 cubic kilometres (10 trillion gallons) of water, which can produce up to 22,500 megawatts of electricity.
• Water inflow: Uses water from 3 gorges - Qutangxia, Wuxia, and Xilingxia
• Significance: Hydroelectric potential, increasing the Yangtze River's shipping capacity and reducing the potential for floods downstream by providing flood storage space. 

Yangtze River

• About: The longest river in both China and Asia and third longest river in the world, with a length of 3,915 miles (6,300 km).
• Basin area: 698,265 square miles (1,808,500 sq.km). 
• Left bank tributaries: Yalung, Min, Jialing, and Han rivers
• Right bank tributaries: Wu, Yuan, Xiang, and Gan rivers