The Bözberg Road Tunnel is a

motorway A controlled-access highway is a type of highway that has been designed for high-speed vehicular traffic, with all traffic flow—ingress and egress—regulated. Common English terms are freeway, motorway, and expressway. Other similar terms ...

tunnel A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ve ...

Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...

. The tunnel lies under the

Bözberg Pass Bözberg is a municipalities of Switzerland, municipality in the district of Brugg (district), Brugg in Cantons of Switzerland, canton of Aargau in Switzerland. It ceased to exist in 1873, when it was split into the two new municipalities Oberböz ...

between Frick and

Baden Baden (; ) is a historical territory in southern Germany. In earlier times it was considered to be on both sides of the Upper Rhine, but since the Napoleonic Wars, it has been considered only East of the Rhine. History The margraves of Ba ...

, in the

canton of Aargau Aargau ( ; ), more formally the Canton of Aargau (; ; ; ), is one of the 26 cantons forming the Swiss Confederation. It is composed of eleven districts and its capital is Aarau. Aargau is one of the most northerly cantons of Switzerland, by th ...

, and forms part of the A3 motorway from

Basel Basel ( ; ), also known as Basle ( ), ; ; ; . is a city in northwestern Switzerland on the river Rhine (at the transition from the High Rhine, High to the Upper Rhine). Basel is Switzerland's List of cities in Switzerland, third-most-populo ...

Sargans Sargans is a Municipalities of Switzerland, municipality in the ''Wahlkreis'' (constituency) of Sarganserland (Wahlkreis), Sarganserland in the Cantons of Switzerland, canton of St. Gallen (canton), St. Gallen in Switzerland. Sargans is known for ...

. It is long, and was opened in 1996. The tunnel runs roughly parallel to the Bözberg Rail Tunnel.

References

Road tunnels in Switzerland Buildings and structures in Aargau {{Switzerland-struct-stub