Ecology announced today that a very light oil sheen is visible upriver of McNary Dam on both the Washington and Oregon sides.

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 ...

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

(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 ...

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 ...

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 ...

After centuries of dam building, a nationwide movement to dismantle these aging barriers is showing how free-flowing rivers can restore ecosystems, improve safety, and reconnect people with nature.

(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 ...