The Mastrafjord Tunnel () is a subsea road tunnel in

Stavanger Stavanger, officially the Stavanger Municipality, is a city and municipalities of Norway, municipality in Norway. It is the third largest city and third largest metropolitan area in Norway (through conurbation with neighboring Sandnes) and the ...

municipality in

Rogaland Rogaland () is a Counties of Norway, county in Western Norway, bordering the North Sea to the west and the counties of Vestland to the north, Telemark to the east and Agder to the east and southeast. As of 1 January 2024, it had a population of 49 ...

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 long tunnel runs under the Mastrafjorden, which flows between the islands of

Mosterøy Mosterøy is a List of former municipalities of Norway, former municipality in Rogaland county, Norway. The administrative centre was the village of Askje where the Askje Church is located. The municipality existed from 1884 until 1965. The ...

and

Rennesøy Rennesøy is a former municipality in Rogaland county, Norway. It was merged into Stavanger municipality on 1 January 2020. It was located in the traditional district of Ryfylke. The administrative centre of the municipality is the village of ...

. The tunnel opened in 1992 as part of the

European route E39 European route E39 is the designation of a north–south road in Norway and Denmark from Klett, just south of Trondheim (city), Trondheim, to Aalborg via Bergen, Stavanger and Kristiansand. In total, there are nine ferries, more than any other ...

highway and the Rennesøy Fixed Link (which also includes the Byfjord Tunnel). The southern end of the tunnel is located near the village of Askje on Mosterøy and the northern end of the tunnel is in the village of Vikevåg on Rennesøy. With a maximum grade of 8%, the tunnel reaches its deepest point at below sea level.

References

Subsea tunnels in Norway Road tunnels in Rogaland Stavanger European route E39 in Norway 1992 establishments in Norway Tunnels completed in 1992 {{Rogaland-geo-stub