The tunnel is 6,875 m long and at its deepest point 212 m below sea level. At the steepest point, the incline is 10%.
The tunnel has raised safety strips on both sides of the road and is well lit with LED lighting. Acoustic signals at the tunnel entrances prevent reindeer from entering the tunnel. The roller doors at both ends of the tunnel prevent frost damage to the building structure, as the tunnel is kept frost-free by closing the doors.