DESERT AIRE, Wash. - The Washington Department of Ecology and Grant PUD are addressing a spill at Priest Rapids Dam after ...

MATTAWA — People downstream of Priest Rapids Dam are being asked to look for evidence of oil on the waters of the Columbia River following a spill of mineral oil at the dam Wednesday. Department of ...

(Left) Powerlines above the Columbia River move electricity from the Bonneville Dam to customers across the region in Hood River County, Oregon, on Thursday, July 25, 2024. (Right) Portrait of Farley ...

Construction of the Grand Coulee Dam in Washington began in 1933 and was completed in 1942. It is the largest hydropower producer in the U.S. and also part of the federal Columbia River Power System. ...

Northwest states, tribes and environmental groups will resume suing the federal government over its hydroelectric dam operations in the Columbia River Basin that have harmed endangered native fish ...

Environmental groups and others want to see hydropower operations changed to favor fish survival. Utility groups warn of problems for the power grid A long-running court battle over how to balance ...

PORTLAND — The Oregon Department of Environmental Quality has postponed a public hearing scheduled for Monday, April 21, for proposed water quality permits for three dams and locks on the Columbia ...

(Left) Powerlines above the Columbia River move electricity from the Bonneville Dam to customers across the region in Hood River County, Oregon, on Thursday, July 25, 2024. (Right) Portrait of Farley ...