The day before September 11, 2001, visitors were driving across the Columbia River in one of the most dramatic locations one can imagine – atop the 550-foot spillway of Grand Coulee Dam, a marvel to ...

Historic construction footage, photos, and newsreels help illustrate Grand Coulee Dam's construction, engineering challenges, and regional impact including power and irrigation. Produced by the Bureau ...

Lava, glaciers and epic floods reshaped the Columbia River before the Grand Coulee Dam. Long before the Grand Coulee Dam changed the Columbia River, lava, glaciers and epic floods radically reshaped ...

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. ...