The inlet to Tverråga is difficult to access. Precisely because of this, it was decided to use a so-called “Coanda intake” with a self-cleaning intake grate on this intake. This has given us minimal maintenance requirements and fewer visits to the intake.
During construction, a cable car was established and used for the work up the steep Tverrålia. The reason why this solution was chosen was that a cable car would entail less impact on nature than would otherwise have been the case with conventional construction – in addition, this was also a cheaper solution than traditional operation. After Tverrålia, the pipeline continues together with the pipeline from Leirelva. This joint trench runs in relatively gentle terrain, but the route runs through the middle of a farmyard and highway 322 had to be crossed, so there were also some challenges here during the construction process.
