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How many ship-lock tiers does the Three Gorges Dam have?
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Three Gorges Dam
The Three Gorges Dam spanning the Yangtze River (Chang Jiang) near Yichang, Hubei province, China.
The Three Gorges Dam features five-tier ship locks at both ends of the complex to facilitate navigation for vessels of up to 10,000 tons. Additionally, the dam includes a ship lift that allows smaller vessels of up to 3,000 tons to bypass these locks and travel past the dam more quickly.1