Kattleberg - Sweden

The first fullscale test

The first Swedish full-scale test of the RockDrain system took place in the Kattleberg tunnel. A railroad tunnel approximately 30 km north of Gothenburg, Sweden.

Based on th results of this test Trafikverket ordered our RockDrain Concept to be used in the problem tunnel Hallandsaasen.


  • 55.2% lower cost
  • 42.7% lower energy consumption
  • 31.0% lower global warming potential (GWP)
  • 36.0% less acidification
  • 54.8% better eutrophication
  • 27.9% less photochemical ozone creation potential (POCP)
  • 70.1% less waste

(Compared to the preferred systems at that time)