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¿Nos ayudas a vaciar esta presa? Impresionantes imágenes de National Geographic, no dejes de verlo hasta el final

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October 28, 2011-The White Salmon River in Washington state is flowing again as the nearly 100-year-old Condit Dam was disabled with explosives. The reservoir draining took about 2 hours. The event is a significant milestone for river restoration and dam removal nationwide.For more on dam removal, see Movement to Take Down Thousands of Dams Goes Mainstream.