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.