Protecting the nation’s aquatic environment


The Portland District Regulatory Branch is committed to protecting the Nation’s aquatic resources while allowing reasonable development through fair and balanced permit decisions.

A U.S. Army Corps of Engineers permit is required for most projects that involve placing dredged or fill materials into waters of the United States, including wetlands, and for any work in, over, or under navigable waters. These projects range from building bridges to installing a culvert to repairing a fishing dock.

The Corps issues permits under the authorities of Section 404 of the Clean Water Act, Section 10 of the Rivers and Harbors Act and Section 103 of the Marine Protection Research and Sanctuaries Act.

Portland District project managers consult with federally recognized tribes, and state and federal agencies, and consider many factors when reviewing project proposals, including the environmental, cultural, recreational, and economic impacts. They are committed to making decisions based on thorough evaluation of the most current, accurate and relevant information about projects’ direct, indirect, and cumulative impacts. The Corps carefully balances regulatory decisions to protect the nation’s aquatic resources.