15 Jan 2026

USACE awards $35.9M contract for Mount St. Helens sediment dam improvement

In an effort to manage flood risk for downstream communities, the U.S. Army Corps of Engineers will raise the dam that captures some of the sediment that continues to flow from Mount St. Helen after its 1980 eruption. USACE awarded a $35.9 million contract to Anvil Builders, Inc., to raise the 184-foot-tall Mount St. Helens Sediment Retention Structure (SRS) by 10 feet.

6 Aug 2021

Corps plans Depoe Bay dredging, after environmental assessment

The U.S. Army Corps of Engineers will begin dredging Depoe Bay, Ore. to remove 2,000 cubic yards of material between September 13 and the end of the month. The work will take place for seven to 14 days and is an effort, with the City of Depoe Bay, to clean out the sediment catch basin.

9 Sep 2014

Corps answers questions about sediment from Mount St. Helens

The U.S. Army Corps of Engineers is hosting a public informational meeting to discuss its draft Supplemental Environmental Impact Statement and Mount St. Helens Long Term Sediment Management Plan.

6 Jun 2012

Corps presents annual sediment use plan

The public is invited to attend a public meeting about the sediment placement plan for the 2012 dredging season.