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Cofferdam demobilished through controlled explosion

(Xinhua)
Updated: 2006-06-06 16:35

This picture captures a momoent when the last cofferdam protecting the just-completed main wall of the Three Gorges Dam was demolished through underwater explosion June 6, 2006. The controlled explosion used more than 140 tons of explosives, enough to topple down 400 10-storey buildings. The operation took about 12 seconds. [Xinhua]Related: Preparations for the explosion