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 i ...

tunnel A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube cons ...

in Switzerland. The tunnel lies under the

Bözberg Pass Bözberg is a municipality in the district of Brugg in canton of Aargau in Switzerland. It ceased to exist in 1873, when it was split into the two new municipalities Oberbözberg and Unterbözberg. On 1 January 2013 the former municipalities of ...

between Frick and

Baden Baden (; ) is a historical territory in South Germany, in earlier times on both sides of the Upper Rhine but since the Napoleonic Wars only East of the Rhine. History The margraves of Baden originated from the House of Zähringen. Baden i ...

, in the

canton of Aargau Aargau, more formally the Canton of Aargau (german: Kanton Aargau; rm, Chantun Argovia; french: Canton d'Argovie; it, Canton Argovia), is one of the 26 cantons forming the Swiss Confederation. It is composed of eleven districts and its capit ...

, and forms part of the A3 motorway from

Basel , french: link=no, Bâlois(e), it, Basilese , neighboring_municipalities= Allschwil (BL), Hégenheim (FR-68), Binningen (BL), Birsfelden (BL), Bottmingen (BL), Huningue (FR-68), Münchenstein (BL), Muttenz (BL), Reinach (BL), Riehen (BS ...

Sargans Sargans is a municipality in the ''Wahlkreis'' (constituency) of Sarganserland in the canton of St. Gallen in Switzerland. Sargans is known for its castle, which dates from before the founding of the Swiss Confederation in 1291. Sargans was al ...

. 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