• 00:20
    Kings of Construction
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    Kings of Construction
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    Kings of Construction
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    How Do They Do It?
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    Food Factory
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    Food Factory
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    Food Factory
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    How We Invented the World
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    Mythbusters
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    Food Factory
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    Food Factory
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    How Do They Do It?
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    How Do They Do It?
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    How Do They Do It?
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00:20

Kings of Construction

The El Cajon dam on the Rio Grande is a huge construction project. This $750 million structure will supply two per cent of Mexico's electricity.