Embankment Urnersee

By gravel mining in the early 20th Century the original shallow water zones in the estuary of the River Reuss in the Urnersee were eliminated that created unstable bank conditions. Not far away, tunnel drilling machines are digging through the mountains and tons of low-grade excavated material is falling down, which removal is expensive. The film shows how the excavated material is reused …

  • German
  • 01/2008
  • Schwarzpictures.com
  • Schweizerischen Ingenieur- und Architektenvereins SIA