The Halsnøy Tunnel is a subsea road tunnel which connects the island of Halsnøy

Halsnøy

Halsnøy is an island in Sunnhordland in the county of Hordaland, Norway. It has c. 2,500 inhabitants, and is 38 square kilometres in area. It is the most populated island in Kvinnherad and was until 2008 the most populated island in Norway without a direct connection to land.- History :It was...

 to the mainland at Sunde

Sunde

Sunde is both a Norwegian surname and a place name in Norway.-People:* Arne Sunde , Norwegian officer, Olympic shooter, and two-time President of the United Nations Security Council*Arnulf Sunde, Norwegian speed skater...

 in Kvinnherad

Kvinnherad

Kvinnherad is a municipality in the county of Hordaland, Norway. The parish of Kvindherred was established as a municipality on 1 January 1838 . Fjelberg, most of Varaldsøy and parts of Skånevik merged with Kvinnherad on 1 January 1965.The municipality is the 5th in size in Hordaland...

, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

. The tunnel is 4120 metres (13,517.1 ft) long and reaches 135 metres (442.9 ft) below mean sea level. Located on County Road 544, it opened on 8 March 2008 and is a toll road

Toll road

A toll road is a privately or publicly built road for which a driver pays a toll for use. Structures for which tolls are charged include toll bridges and toll tunnels. Non-toll roads are financed using other sources of revenue, most typically fuel tax or general tax funds...

. The project included 2.2 kilometres (1.4 mi) of new road and cost 427 million Norwegian krone

Norwegian krone

The krone is the currency of Norway and its dependent territories. The plural form is kroner . It is subdivided into 100 øre. The ISO 4217 code is NOK, although the common local abbreviation is kr. The name translates into English as "crown"...

.