Comments by "Rob Fraser" (@krashd) on "The giant metal walls keeping London above water" video.

  1. Can only one YouTuber cover a thing?
    1
  2. I'm fairly sure it really is 90 mins, it takes ages to raise the pontoon things in to place. They are enormous.
    1
  3. It remains in the North Sea.
    1
  4. Have you seen our coast? It varies between 20ft and 300ft tall. Rivers, particularly the Thames, are the weak points in the coastline.
    1
  5.  @lukasrentz3238  It should, it's the 2nd largest flood barrier project after the Deltaworks in the Netherlands and the single largest flood barrier structure in the world.
    1
  6. Only if it's left closed for too long and London experiences torrential rainfall.
    1