Why They’re Coming Down

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PBS’s NOVA Next takes a look at the “Undamming of America.”

Gordon Grant didn’t really get excited about the dam he blew up until the night a few weeks later when the rain came. It was October of 2007, and the concrete carnage of the former Marmot Dam had been cleared. A haphazard mound of earth was the only thing holding back the rising waters of the Sandy River. But not for long. Soon the river punched through, devouring the earthen blockade within hours. Later, salmon would swim upstream for the first time in 100 years.



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