The Illhøllia Tunnel (, sometimes spelled ''Ildhøllia'') is a long tunnel on

European route E06 European route E6 (, , or simply E6) is the main north–south thoroughfare through Norway as well as the west coast of Sweden. It is long and runs from the southern tip of Sweden at Trelleborg, into Norway and through almost all of the countr ...

in the

Dunderland Valley The Dunderland Valley (, ) is a valley in Rana Municipality in Nordland county, Norway. It reaches from just below the eastern Saltfjellet plateau about south of the Arctic Circle. The mountain Bolna is situated in the uppermost boundary of ...

Rana Municipality or is a municipality in Nordland county, Norway. It is part of the Helgeland traditional region. The administrative centre of the municipality is the town of Mo i Rana, which houses the National Library of Norway. Other population centers in R ...

Nordland Nordland (; , , , ) is one of the three northernmost Counties of Norway, counties in Norway in the Northern Norway region, bordering Troms in the north, Trøndelag in the south, Norrbotten County in Sweden to the east, Västerbotten County to t ...

county,

Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...

. The tunnel was opened in 2002. The tunnel is located in an area with very steep mountains along the

Ranelva Ranelva is a long river in Rana Municipality in Nordland county, Norway. It is one of the longest rivers in Nordland county. The catchment area of the river is . Before the power stations of ''Reinforsen'' (1925) and Langvatnet (1964) were bui ...

river. Before the opening of the tunnel,

had to be continuously repaired because the road was about to collapse into the river due to erosion from the small brooks flowing down the mountains and going beneath the road. File:Illhøllia seen from South.JPG, Ranelva river valley, see from the southern entrance File:Illhøllia tunnel seen from North A.JPG, Northern entrance File:Illhøllia tunnel seen from North B.JPG, Northern entrance

References

Road tunnels in Nordland 2002 establishments in Norway Tunnels completed in 2002 Rana, Norway Roads within the Arctic Circle {{norway-tunnel-stub