US Army Corps of Engineers
Portland District Website Website

Welcome to the Columbia River Estuary conceptual model

Mosiac of three technical illustrationsThe navigation module in the middle of each page can be used to explore the primary components of the model.


This document was developed by the Pacific Northwest National Laboratory for the Portland District of the U.S. Army Corps of Engineers.


Click here for more information about the background and development of this project.

Contact information

Ronald Thom, Ph.D

Marine Research Operations, PNNL
1529 W. Sequim Bay Rd.
Sequim, WA 98382