13 Feb 2026

FONSI: Avian Dissuasion at Lower Columbia River, Federal Navigation Channel, Dredged Material Placement Sites

The U.S. Army Corps of Engineers, Portland District (USACE) has developed an environmental analysis in accordance with the National Environmental Policy Act of 1969, as amended.

8 Jan 2026

Avian Dissuasion at Lower Columbia River Federal Navigation Channel Dredged Material Placement Sites Draft Supplemental Environmental Assessment (DSEA)

Expiration date: 1/23/2026

Interested parties are hereby notified that the U.S. Army Corps of Engineers, Portland District (Corps) is seeking public comment on its Avian Dissuasion at Lower Columbia River Federal Navigation Channel Dredged Material Placement Sites Draft Supplemental Environmental Assessment (DSEA).