Historic Dam Removal

Elwha Dam. Retrieved from: www.nationalgeographic.com

For 98 years, the 125-foot high Condit Dam in southeastern Washington State held back the White Salmon River, creating a serene lake, but choking off the waterway to salmon. Wednesday, in an historic effort, the dam was dramatically breached, and ecologists hope the increased flow of water will restore the waterway to fish and other aquatic organisms, as well as the birds and mammals that rely on them.

The dam removal comes just weeks after dismantling began on the Elwha Dama few hours to the north. Demolition of the Condit occured with a bang, compared to the virtual whimper of the Elwha. At that site, downstream from Olympic National Park, engineers are dismantling the two dams slowly, in a process that’s expected to take three years. They say a quicker removal would endanger the area due to the higher amount of silt in the lake.

Silt is still readily apparent in the dramatic video above, both in the darkly colored water rushing from underneath the conrete and in the fast-emptying lake.”

Read more: National Geographic

 

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