US Army Corps of Engineers
Northwestern Division

Learn and Link

Columbia River System Operations EIS
Published May 16, 2019
Adult fish passage facilities include one ladder with entrances on both shores and a fish channel through the spillway, which connects to the powerhouse fish collection system and south shore ladder. Modifications to improve adult Pacific Lamprey passage include ladder improvements, passage structures and installation of metal plating to assist lamprey upstream.

Adult fish passage facilities include one ladder with entrances on both shores and a fish channel through the spillway, which connects to the powerhouse fish collection system and south shore ladder. Modifications to improve adult Pacific Lamprey passage include ladder improvements, passage structures and installation of metal plating to assist lamprey upstream.

The U.S. Army Corps of Engineers is committed to improving fish passage conditions through the Columbia River System and improving technology like the water cooling systems at Little Goose and Lower Granite locks and dams. Watch this video to learn about one of the many ways the U.S. Army Corps of Engineers is pioneering some of the most advanced fish passage technology.

To help the public and organizations effectively participate in federal agency environmental reviews, the Council on Environmental Quality wrote the informational A Citizen’s Guide to the NEPA.

The NEPA process and its value to the public are not always easy to understand. Recognizing this, and to help the public and organizations effectively participate in federal agency environmental reviews, the Council on Environmental Quality wrote the informational A Citizen’s Guide to the NEPA.

Introducing A Citizen’s Guide to the NEPA

The National Environmental Policy Act (NEPA), while our basic national charter for protection of the environment, is foremost a procedural law focused on making sure federal decision makers take a hard look at the potential effects of a proposed action and allow the public and other stakeholders to comment on the federal agency’s effects analysis and consideration of reasonable alternatives. The NEPA analysis helps these decision makers understand the environmental consequences of the alternatives in comparative form before making a decision. This “hard look” is informed by the public and other stakeholders, starting with the scoping phase.
 
The NEPA process and its value to the public are not always easy to understand. Recognizing this, and to help the public and organizations effectively participate in federal agency environmental reviews, the Council on Environmental Quality wrote the informational A Citizen’s Guide to the NEPA.   If you are new to the NEPA process, or looking for some clarity about what you have heard so far, this guide is a great starting point.
 

Fish and water temperature

Some reservoirs stratify (warm water stays on top, while cold water sinks to the bottom). Water from these reservoirs can sometimes be used to help manage temperature conditions for aquatic species downstream. Depending on the time of year, warmer or cooler water can be released to help manage downstream temperatures.

Read more about how reservoirs help manage river temperatures. 

The video below, with animation, has information about fish cooling systems at two lower Snake River dams.

This video shares one of the many ways the U.S. Army Corps of Engineers is pioneering some of the most advanced fish recovery technology regarding environmental stewardship including improving technology like the water cooling systems at Little Goose and Lower Granite locks and dams.