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The Three Gorges Dam is one of the largest and most complex engineering projects in the world. Located in China’s interior along the Yangtze River, it showcases advanced engineering and design features. The dam’s physical characteristics are crucial for its functions, including hydroelectric power generation, flood control, and navigation improvement.
Dam Structure and Dimensions
The dam stretches approximately 2,335 meters (7,660 feet) across the Yangtze River. Its height reaches 185 meters (607 feet), making it one of the tallest dams globally. The structure is primarily made of concrete and steel, designed to withstand high water pressures and seismic activity.
Reservoir and Water Capacity
The reservoir created by the dam extends over 600 kilometers (370 miles) upstream. It has a total storage capacity of about 39.3 billion cubic meters (1.39 trillion cubic feet). The reservoir’s large volume helps regulate river flow, reduce flooding, and store water for hydroelectric power generation.
Hydroelectric Power Facilities
The dam houses 34 main turbines, each with a capacity of 700 megawatts, totaling approximately 22,500 megawatts. The turbines are embedded within the dam structure, utilizing the water flow to generate electricity efficiently. This capacity makes it one of the world’s largest hydroelectric power stations.
Additional Physical Features
- Navigation locks for ships up to 10,000 tons
- Spillway capacity of 116,000 cubic meters per second
- Earthquake-resistant design features
- Bridge and road connections across the dam