Coulee Dam

Coulee Dam, located on the Columbia River in Washington State, is a large hydroelectric power reservoir and dam that generates electricity by harnessing the river’s flowing water. Built between 1933 and 1942, it serves as a critical source of renewable energy, providing power to the Pacific Northwest. The dam also helps control water flow for irrigation, flood control, and recreation. Its massive structure includes a concrete arch-gravity dam, a power plant, and a reservoir called Lake Roosevelt. Coulee Dam is an engineering marvel that combines energy production with water management to benefit the region.