Currently 20% (610 m) of the excavation towards the
north is completed. This is the face that ultimately will breakthrough into the
existing Skullerud water treatment plant. The project is now in the phase where
systematic injections are being executed to protect the tunnel from taking in
polluted water from an old garbage disposal site. This work is expected to
continue for at least another 800 meters.
The 520 meter long excavation
towards the south is 90% completed. Due to unforeseen geological circumstances
in the southern pre-cut. The tunnel works here will have to be stopped in June
until the pre-cut can be executed.