23 Dec 2025

Army Corps monitors widespread navigation hazards

Army Corps monitors widespread navigation hazards caused by the recent accumulation of large woody debris carried into the Puget Sound and along the Washington coast, due to multiple atmospheric rivers and heavy precipitation impacting the region.

20 Dec 2025

Army Corps updates communities on record flood recovery, critical infrastructure status during state governor press conference

Army Corps and Washington State leadership gave updates on their flood response efforts, during a joint press conference, Dec. 20. The press conference came on the heels of both entities' flood fight response due to back-to-back atmospheric river storms and record-breaking flooding that impacted the state over the past two weeks. 

19 Dec 2025

USACE uses strategic safe reservoir drawdowns to protect Green, White River valleys amid winter storm cycles

As Western Washington moves through the peak of flood season, Army Corps, Seattle District, water management team provides critical information on the process of "drawdowns" at Howard A. Hanson and Mud Mountain Dams, and why responsible drawdowns are necessary to protect communities in the Green and White River Valleys during flood season.

17 Dec 2025

USACE delivers materials, offers on-the-ground expertise to numerous threatened communities for flood-damaged levees

Army Corps Emergency Management team continues its flood fight support, providing critical flood-fighting materials and on-the-ground expertise to local and county partners across western Washington, Idaho and Montana.

17 Dec 2025

Army Corps monitors Lake Pend Oreille elevations for downstream communities

U.S. Army Corps of Engineers (USACE), Seattle District, Water Management team is monitoring rising Lake Pend Orielle elevations, as a result of the atmospheric river event that hit the region, Dec. 16.

14 Dec 2025

Army Corps regulates water flows to protect downstream communities on the White and Green River Basins

Army Corps' Water Management will reduce outflows from Howard A. Hanson Dam, before the next atmospheric river hits western Washington, Dec. 14-16. Mud Mountain Dam will also reduce outflows within the next 24 hours.

13 Dec 2025

UPDATE: Army Corps Regulates Peak Flow to Mitigate Extensive Flooding in Skagit County

Army Corps regulates peak flow in the Skagit Basin, to manage the impacts of heavy rainfall and mitigate potential flooding in the region.

10 Dec 2025

USACE battles historic flooding, manages five dams to protect communities

U.S. Army Corps of Engineers water managers are conducting 24-hour operations for five dams to reduce downstream flood risk as a series of powerful, back-to-back atmospheric rivers deliver overwhelming rainfall across Western Washington.

10 Dec 2025

UPDATE: Army Corps continues flood fight support in western Washington

U.S. Army Corps of Engineers continues its flood fight support across western Washington, with teams deployed to the Skagit, Snohomish and White River basins, monitoring impacts from high flows, and providing technical support and direct assistance to local and county partners.

8 Dec 2025

Seattle District monitors White River as back-to-back atmospheric rivers threaten flooding

Back-to-back atmospheric rivers are forecasted to hit the Puget Sound and White River Basin within 48 hours. U.S. Army Corps of Engineers and National Weather Service ramp up their monitoring activities, tracking extreme weather conditions and potential flooding on the White River and surrounding riverbank areas.