MegaStructures - Season 1 - Eps 7: Itaipú Dam
In the Paraná River of South America, lies the Itaipú Dam. Costing 20 billion dollars, the Itaipú Dam is the world's largest and most powerful hydroelectric power plant. It is a representation of the efforts and accomplishment of two countries, Brazil and Paraguay. The episode examines the efforts undertaken and the sacrifices made to construct the dam, including how the largest diversion channel was constructed to divert water from the world’s 7th largest river away from the main construction site.
About MegaStructures

Title: MegaStructures
First Air Date: 2004-01-01
Last Air Date: 2012-05-24
Status: Returning Series
Rating: 7/10 (from 18 votes)
Language: EN
Seasons: 10
Total Episodes: 158
Network: National Geographic
Genres: Documentary
Production Companies: National Geographic
Synopsis
MegaStructures is a documentary television series appearing on the National Geographic Channel in the United States and the United Kingdom, Channel 5 in the United Kingdom, France 5 in France, and 7mate in Australia. Each episode is an educational look of varying depth into the construction, operation, and staffing of various structures or construction projects, but not ordinary construction products. Generally containing interviews with designers and project managers, it presents the problems of construction and the methodology or techniques used to overcome obstacles. In some cases this involved the development of new materials or products that are now in general use within the construction industry. MegaStructures focuses on constructions that are extreme; in the sense that they are the biggest, tallest, longest, or deepest in the world. Alternatively, a project may appear if it had an element of novelty or are a world first. This type of project is known as a Megaproject.