Columbia River Basin Water Management

This is the home page for the Columbia Basin Water Management Division, Northwestern Division, U.S. Army Corps of Engineers. We are responsible for the Corps' river and reservoir regulation activities in the Columbia River Basin. Please click the icons on the map to learn more about the various projects in the Columbia Basin.

Columbia River

External Links

Basin Map

Columbia River - Image Slider

Columbia River Basin News and Features

Juvenile salmon benefit from spring spill
In April, the Northwestern Division, U.S. Army Corps of Engineers started spilling water on the Snake and Columbia rivers to help juvenile salmon migrate downstream. We met up with Julie Ammann,...
Water managers begin spring spill to benefit juvenile salmon
Federal water managers will begin spilling hundreds of thousands of gallons of water over spillways instead of through turbines during annual “spring spill” operations at U.S. Army Corps of Engineers’...
A step towards navigable waters: A history of McNary Lock and Dam
As people moved into the Pacific Northwest, communities grew around the rivers, especially the Columbia and Snake. Back then, the rivers were temperamental and hard to navigate. However, there was a...
Frigid temps increase power demand while Army dams balance needs
With frigid temperatures and near record-setting snow accumulation in some areas of the Pacific Northwest, Army dams responded by producing power to keep the lights and heat on. The U.S. Army Corps of...
Port managers, Army engineers agree to $2.1 million study
Leadership from the Ports of Longview and Kalama, and the U.S. Army Corps of Engineers have agreed to fund an estimated $2.1 million study. The study will investigate what changes or improvements...