The Edge of the Elwha River Sediment Plume @waseagrant
The Edge of the Elwha River Sediment Plume  @waseagrant
Uploaded January 2019 | Updated September 2026, 6 hours ago
Ian Miller of Washington Sea Grant investigates the edge of the Elwha River plume in the Strait of Juan de Fuca. The removal of two dams on the Elwha River in Washington State occurred between 2011 and 2014, and led to ecological changes in the nearshore zone near the river mouth. Those ecological changes were primarily driven by elevated turbidity in the Elwha River, which led to elevated turbidity in the Strait of Juan de Fuca during dam removal. See Rubin et al., 2017 (journals.plos.org/plosone/article?id=10.1371/journal.pone.0187742) for details.

This video is part of the Elwha Nearshore Benthic Marine Community Surveys project. Visit the website at https://elwhanearshore.ocean.washington.edu/index.html for more information and videos.

This video has no audio. Below is a description of what it shows:

Elwha dive team member Ian Miller readies himself to record underwater video of the river’s sediment plume The water surface is half brown and half blue

Underwater view of the edge of the sediment plume shows brown cloudy water that has almost no visibility then clear water past the edge of the plume
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The Edge of the Elwha River Sediment Plume

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