Sunday, November 17, 2013
The Grand Coulee Dam 15.5.1952
The stamp on this cover featuring the Grand Coulee Dam, commemorates 50 years of Federal assistance in the West managing the resources of local rivers and streams. The stamp was released at Grand Coulee, on 15.5.1952.
Grand Coulee Dam is the largest concrete dam and the greatest source of waterpower in the United States. Located on the Columbia River about 90 miles northwest of Spokane, Washington, the dam is 5,233 feet long, 500 feet high (about as high as a 46-story building), and contains about 12 million cubic yards of concrete.
The dam was completed in 1942, after less than eight years of construction time. Grand Coulee Dam’s three power plants provide nearly 6.5 million kilowatts of electrical power. The dam forms Franklin D. Roosevelt Lake, a reservoir 151 miles long. Since 1952, the dam has been part of a continuing irrigation project that provides water for over a million acres of farmland.
Thank you Merja.