22 Jul 2026

Water Follies visitors urged to protect shoreline vegetation

WALLA WALLA, Wash. – As the Tri-Cities prepares for the annual Water Follies, the U.S. Army Corps of Engineers, Walla Walla District, is reminding visitors that shoreline vegetation along the Columbia River serves an important purpose for fish, wildlife, and the health of our communities and the river ecosystem.

16 Jul 2026

USACE Walla Walla District welcomes new commander

WALLA WALLA, Wash. – Lt. Col. Kathryn A. Werback relinquished command of the U.S. Army Corps of Engineers, Walla Walla District, to Lt. Col. Douglas D. Droesch, during a change of command ceremony held in Walla Walla, Washington, July 15.

9 Jul 2026

USACE urges boating safety near dams

WALLA WALLA, Wash. – The U.S. Army Corps of Engineers, Walla Walla District reminds boaters to stay clear of boat restricted zones near dams after a disabled recreational boat drifted into the restricted area near McNary Lock and Dam on Monday, July 6.

9 Jul 2026

USACE to treat Osprey Point for invasive flowering rush

PASCO, Wash. – The U.S. Army Corps of Engineers, Walla Walla District will treat invasive flowering rush at Osprey Point in Pasco, Washington, using the herbicide Aquastrike (active ingredients: Diquat and Endothall).

6 Jul 2026

Public crossing at Lower Monumental Lock and Dam closed starting July 13

KAHLOTUS, Wash. – The public crossing at the U.S. Army Corps of Engineers’ Lower Monumental Lock and Dam will be closed July 13 through July 23.

11 Jun 2026

USACE Walla Walla District highlights recreation benefits, announces 2026 fee-free days

WALLA WALLA, Wash. – From eastern Washington to northeastern Oregon and Idaho, the U.S. Army Corps of Engineers, Walla Walla District is proud to connect communities with the great outdoors. While the district works daily on critical water and energy infrastructure, it also manages more than 37 recreation areas. Welcoming millions of visitors each year, these public lands support local tourism and promote healthy, active lifestyles by offering:

4 Jun 2026

Dworshak Dam to increase releases starting June 5

AHSAHKA, Idaho –Dworshak Dam releases will gradually increase from approximately 1,700 cubic feet per second to 6,400 cfs by the evening of Sunday, June 7.

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.