The Granfoss Tunnel is a set of two tunnels on Ring 3 in

Oslo Oslo ( or ; ) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of 1,064,235 in 2022 ...

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 two tunnels are long and they are part of the Granfoss Line, a stretch of motorway which was opened in 1992 connecting Ring 3 with the

European route E18 European route E18 runs between Craigavon, County Armagh, Craigavon in Northern Ireland and Saint Petersburg in Russia, passing through Scotland, England, Norway, Sweden and Finland. It is about in length. Although the designation implies the ...

. The name comes from the Granfossen waterfall on the

Lysakerelva Lysakerelven (also known as Lysakerelva, ) is a river in Norway that forms the boundary between the municipalities of the capital city of Oslo and Bærum. The river by this name has its source in Bogstadvannet, though the source is further up, at ...

river, which passes nearby. The two tunnels run from

Lysaker Lysaker is an area in Bærum Municipality, Akershus County, Norway. Lysaker is the easternmost part of Bærum and borders Oslo proper. Lysaker was initially a farming community, later becoming a residential area. Today it is primarily known as ...

to Mustad, and from Mustad to

Ullern Church Ullern Church () is a parish church of the Church of Norway in Sør-Odal Municipality in Innlandet county, Norway. It is located in the village of Ullern. It is the church for the Ullern parish which is part of the Solør, Vinger og Odal prosti ...

, respectively. When the two tunnels with four lanes were opened for traffic, a bottleneck of Oslo's road system which had lingered for several decades was finally dissolved. The tunnels were financed by

Oslo Package 1 Oslo Package 1 () was a political agreement and plan for introducing an urban toll ring around Oslo, Norway and making 31 investments to road infrastructure in Oslo and Akershus. The package was approved in 1988 and toll charges were introduced in ...

. Despite there being two tunnels, the singular name is used in local parlance.

References

* Road tunnels in Oslo Tunnels in Bærum Tunnels completed in 1992 {{Norway-tunnel-stub