1 Apr 2024

Walla Walla District reopens navigation locks after extended outage; completes work on multiple BIL-funded projects

COLUMBIA & SNAKE RIVERS, Ore. & Wash. – The U.S. Army Corps of Engineers Walla Walla District reopened navigation locks on the Columbia and Snake rivers on March 29 after an eleven-week outage. This extended outage allowed the district to perform routine maintenance and to replace aged equipment to reduce the risk of asset failure.

20 Mar 2024

Military night operations training to be held at McNary Lock and Dam March 25 through 27

UMATILLA, OR. -  Soldiers from the 2nd Battalion, 75th Ranger Regiment stationed at Joint Base Lewis-McChord will conduct military night operations training at McNary Lock and Dam from Monday, March 25 through Wednesday, March 27. The training employs the use of helicopters and simulated munitions to make the exercise as realistic as possible. The training will primarily occur after sunset.

6 Jul 2023

23-039 Corps seeks public input for McNary Master Plan revision

UMATILLA, Ore.– The U.S. Army Corps of Engineers Walla Walla District has prepared a draft McNary Master Plan with an accompanying draft Finding of No Significant Impact (FONSI) and Environmental Assessment (EA) to revise the outdated 1982 McNary Master Plan. The Walla Walla District will be accepting public comments from July 10 through Aug. 10.

28 Jun 2023

23-037 Corps to treat Lake Wallula to control invasive flowering rush

WALLA WALLA, WA– The U.S. Army Corps of Engineers Walla Walla District will be performing up to five five-acre treatments in Lake Wallula, the McNary reservoir near the Tri-Cities, Washington, with herbicide, Diquat Dibromide, at an application rate of two gallons per surface acre. This effort is to control the invasive aquatic plant species flowering rush.

13 Jan 2023

23-004 Corps ropes off hillside after erosion event at McNary

Umatilla, OR – Officials at McNary Lock and Dam have roped off the hillside on the south shore near the dam due to hazardous conditions created by an erosion event.

10 May 2022

22-030 Corps to begin construction this summer to connect McNary wastewater sewer system to the City of Umatilla sewer system

Umatilla, Oregon – The U.S. Army Corps of Engineers’ Walla Walla District will begin construction this summer to connect the McNary Dam wastewater sewer system to the City of Umatilla sewer system. During the construction effort there will be temporary closures and detours affecting 3rd Street, West Park, Spillway Park, and the Visitor Center/Juvenile Fish Facility. Look for additional news releases as construction progresses with closure details and dates.

6 May 2022

22-029 Corps to hold public meetings to gather input for McNary Master Plan Revision

BURBANK, Wash.– The U.S. Army Corps of Engineers’ Walla Walla District (Corps) has scheduled two open house public meetings to provide information and accept comments on the proposed revision of the 1982 McNary Master Plan and accompanying Environmental Assessment.

2 May 2022

22-028 Corps seeks public input for McNary Master Plan Revision

BURBANK, Wash.– The U.S. Army Corps of Engineers’ Walla Walla District (Corps) invites the public to provide scoping comments for the upcoming revision of the McNary Master Plan. The Corps will be accepting comments from May 2 through June 2, 2022.

14 Jan 2022

22-005 Columbia and Snake river navigation locks will close in February for annual maintenance

COLUMBIA & SNAKE RIVERS, Ore. & Wash. – The U.S. Army Corps of Engineers’ Walla Walla District will close the District’s navigation locks on the Columbia and Snake rivers in February for regularly-scheduled annual inspections, preventative maintenance and repairs.

1 Mar 2021

21-006 Columbia and Snake river navigation locks will close March 6 for annual maintenance

COLUMBIA & SNAKE RIVERS, Ore. & Wash. – The U.S. Army Corps of Engineers’ Portland and Walla Walla districts will close all Corps navigation locks on the Columbia and Snake rivers March 6 at 6 a.m. for regularly-scheduled annual inspections, preventative maintenance and repairs.