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What is a fun fact about Grand Coulee Dam?

Grand Coulee Dam is one of the largest concrete structures in the world. It contains nearly 12 million cubic yards of concrete. What could you build with 12 million cubic yards of concrete? You could build a sidewalk four feet wide and four inches thick and wrap it twice around the equator (50,000 miles).



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Grand Coulee (map) is the largest dam in the Columbia River Basin and one of the largest in the world. Everything about the dam is large: it is 550 feet (167.6 meters) tall, measured from its foundation in solid granite, or approximately 350 feet (106.7 meters) from the downstream river surface to the top of the dam.

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A dam is defined as a barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply. The oldest dam in America is Old Oaken Bucket Pond Dam. It was built in 1640 and is located in Scituate, Massachusetts.

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Jan. 5, 2022 Updated Wed., Jan.

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The main difference between the Grand Coulee Dam and the Hoover Dam is their size. The Hoover Dam is 726. 4 feet (221.4 meters) tall and 1,244 ft (379 m) wide. The Grand Coulee Dam is 550 ft (168 m) tall and a whopping 5,223 ft (1592 m) wide!

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The Oregonian called it man's greatest creation that turned the mighty Columbia River into a slave of man. A book published five years later called it the eighth wonder of the world. Even folk legend Woody Guthrie, in Roll On, Columbia, Roll On, sang that Grand Coulee was the mightiest thing ever built by a ...

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If the dam could not hold back an excessive amount of water, the water would come over the top of the dam and potentially flood areas downstream, including cities.

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Lake Roosevelt is the name of the Columbia River reservoir behind Grand Coulee Dam. It is named for Franklin Delano Roosevelt, who as president authorized the initial construction of the dam and remained its champion as long as he was president.

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The Three Gorges Dam is the biggest concrete dam in the world constructed on the Yangtze River in Hubei province, China. The dam is 2.2 Km long with 60 stories and a height of 160m. 40,000 workers worked on it for 17 years; starting in 1994 it became operational in 2012.

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Parker Dam is a concrete arch structure commonly called the 'deepest dam in the world'.

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