Modern Marvels
Grand Coulee Dam (1x5)
Air date: Dec 10, 1993
One of the world's largest concrete dams and largest concrete structures lies on the Columbia River in the State of Washington. Built in 1931, the Grand Coulee Dam is also one of the largest hydroelectric power plants. We'll explore this technological wonder.
- Premiered: Dec 1993
- Episodes: 808
- Followers: 76