An official website of the United States government
Here's how you know
Official websites use .mil
A
.mil
website belongs to an official U.S. Department of Defense organization in the United States.
Secure .mil websites use HTTPS
A
lock (
lock
)
or
https://
means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.
Skip to main content (Press Enter).
US Army Corps of Engineers
Walla Walla District Website
®
About
History
Leadership
75th Anniversary
Business With Us
Assistance Programs
Continuing Authorities Program
General Investigations Program
Planning and Engineering Technical Services
Contracting
AT/OPSEC for Contractors
Real Estate Division
Regulatory Division
Small Business
Section 408
Missions
Cost Engineering
Dam Safety
Engineering and Construction
Environmental Compliance
Environmental Compliance Comment Form
Environmental Stewardship
Fish Programs
Flood Assistance
Hydropower
Levee Safety
Lower Snake River Dams
Columbia River Basin Water Management
Navigation
Recreation
Dam Crossing
Regulatory
Sustainability
Tribal Coordination
Water Management
Locations
Boise Outreach Office
Regulatory Field Offices
District Locks and Dams
Dworshak Dam and Reservoir
Dworshak Master Plan
Mill Creek Dam and Bennington Lake
Mill Creek GI Feasibility Study
Mill Creek Project SEA
Mill Creek Master Plan
Lower Granite Lock and Dam
Lower Granite Master Plan
Lower Monumental Lock and Dam
Lower Monumental Master Plan
Little Goose Lock and Dam
Little Goose Master Plan
Ice Harbor Lock and Dam
Ice Harbor Master Plan
McNary Lock and Dam
McNary Master Plan
Lucky Peak Dam and Lake
Lucky Peak Dam Safety Action Classification (DSAC)
Lucky Peak Master Plan
USACE Locations
Careers
Equal Employment Opportunity Office
Power Plant Apprenticeship Program
Volunteer Program
Army Fellows
Media
Images
Intercom
News Releases
News Stories
Videos
Library
Contact
USACE Office Locator
Suspicious Activity Report
Home
/
Media
/
News Stories
News Story Archive
2024 (11)
2023 (11)
2022 (11)
2021 (13)
2020 (10)
2019 (2)
2014 (1)
2013 (8)
2012 (3)
Results:
Tag:
FLOWERING RUSH
Clear
March
19
Mar 2021
Corps of Engineers partners with states in fight against invasive aquatic plants
Butomus umbellatus may conjure up images of a hippopotamus belly, but in reality, it is flowering rush, an aquatic invasive plant species that poses a grave threat to the Columbia River Basin’s aquatic ecosystems.