Why Sardar Sarovar Dam is The Second Largest, Which is The Largest Dam of The World?

The Sardar Sarovar Dam is the second largest in terms of the volume of concrete used in building the dam that took three decades to be constructed and cost Rs 65,000 crore.

New Delhi, September 17: Prime Minister Narendra Modi on Sunday dedicated the Sardar Sarovar Dam to the country. He inaugurated the dam in Kevadia, Gujarat. It is a concrete gravity dam built on river Narmada. The height of the dam is 163 m and the length is 1,210 m. Its surface area is 375.55 square kilometres and the maximum capacity of its reservoir is  9,500,000,000 m3 (7,701,775 acre·ft). It is called the second largest dam in the world. But it is neither the highest or largest in terms of the area. Then why is it hailed as the second largest?

The Sardar Sarovar Dam is the second largest in terms of the volume of concrete used in building the dam that took three decades to be constructed and cost Rs 65,000 crore. The largest dam in the world in terms of volume of concrete is the Grand Coulee Dam of the United States.

The Grand Coulee Dam is also a gravity dam constructed across River Columbia in the state of Washington, United States. It was constructed between 1933 and 1942. The dam is 168 m high, and 1,592 m in length. The width of its crest is 30 ft and the width of its base is 152 m. The dam volume is 11,975,520 cu yd (9,155,942 m3).

The highest dam in the world is the Jinping-I Dam. It is 305 m high and is a concrete arch dam. It is situated in China’s Yalong and was constructed in 2013.

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