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USGS Science to Support the Elwha River Restoration Project

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Newly released datasets show how dam removal changed the coast around the mouth of Washington State’s Elwha River

USGS has published data documenting coastal changes caused by the removal of two large dams from the Elwha River in northern Washington. The largest dam removal in U.S. history, begun in 2011 and completed in 2014, released massive amounts of sediment from the former reservoirs. USGS scientists regularly survey the beach and seafloor near the river mouth to document the effects of this sediment as it reaches the coast. The published datasets cover surveys conducted in 2010 and twice yearly thereafter through July 2016; new surveys will be added as data are processed. During the most recent survey, in July 2017, the scientists saw an explosion of vegetation colonizing newly created land. This work is part of multiagency studies to support restoration of the Elwha River system. Contact: Andrew Stevens, astevens@usgs.gov, 831-460-7424, or Jon Warrick, jwarrick@usgs.gov, 831-460-7569

See also:

USGS Elwha River Delta data

National Park Service Elwha River Restoration

USGS Sound Waves articles:

Below:
Scientists from the USGS, Washington State Department of Ecology, and Washington Sea Grant survey beach and seafloor around the mouth of the Elwha River, July 2017.

Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017. Photo from elwha River survey, July 2017.

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