23 Season
705 Episode
Modern Marvels - Season 1 Episode 1
The world’s largest concrete dam–and the largest concrete structure in the world–lies on the Columbia River in the State of Washington. B uilt in 1931, it is also one of the largest hydroelectric power plants in the world.
- annos singulos: 2022
- Patriam: United States of America
- genus: Documentary
- Studio: History, H2
- keyword: technology, invention, disaster, construction, machine
- Director: Bruce Nash
- cast: