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
Portland District Website
®
About
Hydroelectric Design Center
Volunteering
Business With Us
Construction Quality Management Course
Contracting
Small Business
Section 408 - Altering Corps Property
Real Estate
Missions
Cultural Resources
Emergency Management
Environmental Stewardship
Oaks Bottom
Cormorants
Fish
AFEP
Counts
WVP BiOP
Bird Hazing
Cole Rivers Hatchery
Sediment
Sea Lion Management
Cormorant Management
US Moorings cleanup
Willamette Valley Cleanup
Flood Risk Management
Dam Safety
Flood After Fire
Floodplain
Levees
Water Forecasts
Hydropower
Navigation
Pile dikes
Columbia River jetties
South Jetty History
Projects and Plans
Master Plans
Portland Metro Levee System
Lower Columbia River Dredged Material Management Plan
Recreation
Regulatory
NEXT Renewable Fuels EIS
Cascade Renewable Transmission EIS
Tribal Relationships
The Dalles Lock & Dam Tribal Housing Village Development Plan
Locations
Columbia River
Bradford Island
Columbia-L. Willamette
Vancouver to The Dalles
Wahkiakum Ferry
Westport Slough
Old Mouth of the Cowlitz
Rogue River
Willamette Valley
System Evaluation (EIS)
WRDA22-Report
Injunction
Oregon Coastal Projects
Baker Bay
Chetco River
Coos Bay
Coquille River
Depoe Bay
Mouth of the Columbia
Nehalem River
Port Orford
Rogue River-Gold Beach
Skipanon Channel
Tillamook Bay
Yaquina Bay
Port of Newport Navigation Improvement Project
Mount. St. Helens
Corps Locations
Careers
Media
News Releases
Feature Stories
Public Notices
Fact Sheets
Images
Videos
Social Media
Library
Aerial photos
Contact
STEM programs
Teacher Resources
News Media Relations
USACE Office Locator
RSS
Home
/
Media
/
Public Notices
Media Navigation Menu
Media
News Releases
Feature Stories
Public Notices
Images
Fact Sheets
Videos
Social Media
Public Notices By Year
2026 (18)
2025 (7)
2024 (12)
2023 (9)
2022 (15)
Public Notices
Results:
Tag:
Cottonwood Island
Clear
18
Jun 2026
Finding of No Significant Impact - Cottonwood Island Pile Dikes Final EA
Finding of No Significant Impact - Cottonwood Island Pile Dikes Final EA announced.
Finding of No Significant Impact - All Documents
FONSI
Final EA
Water Quality Monitoring Plan