National Geographic Channel MegaStructures

Season 2 Episode 10

North Sea Wall

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Aired Wednesday 9:00 PM Aug 17, 2005 on National Geographic
8.3
out of 10
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3 votes
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North Sea Wall
AIRED:
A historic and present look at Holland's efforts to hold on to their precious land from floods as a result of rising sea levels and climate changes. After a storm in 1916, the Dutch began a labor intensive construction of a Barrier Dam in 1923, stretching 30 km in length. It resulted in the reclamation of 165,000 ha of new land, and creation of a fresh water lake. However, in 1953, a combination of a hurricane and high spring tides caused the North Sea waters to force through the barrier and flood the Dutch coastline, resulting in the loss of over 1,800 lives and 47,000 livestock. The disaster resulted in Holland's creation of the 'Delta Project'. Costing billions of dollars, the project began in 1958. The project consisted of the construction of concrete dams, steel sea walls and retractable floodgates. Environmental considerations also led to the construction of the storm surge barrier in the Eastern Scheldt, one of the biggest in the world. It consists of 2 floating gates built on special docks. The vast gates are controlled by a computer system that allows the gates to be kept open but closes when a flood is imminent. Also presented are current emergency plans that include allocation of certain areas of land to be flooded during worse case flooding..moreless
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SUBMIT REVIEW
  • 'The North Sea Wall' was an excellent episode, it's subject is an example of how man does not underestimate the forces of nature and is able to prepare for it's worse. And after seeing what Hurricane Katrina could do, I have given this megastructures a whmoreless

    7.0
    'The North Sea Wall' was an excellent episode, it's subject is an example of how man does not underestimate the forces of nature and is able to prepare for it's worse.



    After having seen how Hurricane Katrina had caused so much damage to New Orleans, I wondered how better it would have been had New Orleans had it's own version of the North Sea Wall. Loss of lives and property would have been prevented.



    The episode is very inspiring, and gives viewers a clear understanding as to the engineering options available to the world, as well as the importance and significance of technology in our lives.moreless

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