The tunnel begins on the north edge of the village of Eide in the municipality of Voss and runs to the southeast, ending at the small farm of Vallaviki in the municipality of Ulvik.
The 7,510-metre (24,640 ft) tunnel was originally opened on 27 April 1985.
[1] In 2013, a roundabout and a 600-metre (2,000 ft) long branch were added near the southern end of the tunnel to connect with the newly constructed Hardanger Bridge.
The branch passes directly over the older Djønno Tunnel.
This Norwegian tunnel-related article is a stub.