1 May 2026

Public crossing at Lower Monumental Lock and Dam closed on May 12

KAHLOTUS, Wash. – The public crossing at the U.S. Army Corps of Engineers’ Lower Monumental Lock and Dam will be closed May 12 for maintenance.

14 Apr 2026

Increased Boise River flows anticipated this spring for flood risk management

BOISE, Idaho — The U.S. Army Corps of Engineers will begin flood risk management releases from its Boise River reservoirs starting Wednesday, April 15.

2 Apr 2026

U.S. Army Corps of Engineers temporarily closes Rooks Park

WALLA WALLA, Wash. – The U.S. Army Corps of Engineers, Walla Walla District has temporarily closed Rooks Park, located at the Mill Creek Project, effective immediately through April 15.

31 Mar 2026

Dworshak Announces Recreation Area Openings

AHSAHKA, Idaho – The U.S. Army Corps of Engineers has reopened several recreation areas at Dworshak Dam and Reservoir that were temporarily closed for public safety following recent flooding and mudslides

25 Mar 2026

Dworshak Dam Increases Releases for Flood Risk Management

AHSAHKA, Idaho – Dworshak Dam is increasing flood risk management releases from approximately 12,900 cubic feet per second (cfs) to 14,900 cfs. This is necessary to manage space for the upcoming spring runoff due to higher-than-average inflows and a high reservoir level.

24 Mar 2026

U.S. Army Corps of Engineers Announces Alcohol Ban at Illia Dunes

CLARKSTON, Wash. – The U.S. Army Corps of Engineers’ Walla Walla District has banned alcohol at the Illia Dunes Recreation Area on Lake Bryan to curb alcohol-related safety hazards.

23 Mar 2026

U.S. Army Corps of Engineers to manage nuisance wildlife on Lewiston Levee

CLARKSTON, Wash. – The U.S. Army Corps of Engineers’ Walla Walla District, in collaboration with the Idaho Department of Fish and Game, has contracted with the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service to begin control measures for burrowing rodents and other nuisance wildlife along the Lewiston Levee.

18 Mar 2026

Dworshak Dam closes some recreation areas for public safety

AHSAHKA, Idaho – The U.S. Army Corps of Engineers has temporarily closed several recreation areas at Dworshak Dam and Reservoir due to flooding and mudslides.

13 Mar 2026

Mill Creek diverting flows into Bennington Lake during atmospheric river

WALLA WALLA, Wash. – The U.S. Army Corps of Engineers Walla Walla District began diverting water from Mill Creek into Bennington Lake at approximately 11:50 a.m. today as flows increased due to rainfall and snowmelt in the basin.

13 Mar 2026

Flood-risk management releases from Lucky Peak Dam expected soon

BOISE, Idaho — The U.S. Army Corps of Engineers, Walla Walla District, anticipates starting flood-risk management releases from Lucky Peak Dam as early as Thursday, March 26.