The Kerenzerberg Tunnel in Switzerland

The Kerenzerberg Tunnel, an impressive structure in Switzerland, connects the regions of Glarus and Zurich in a uniquely efficient way. As part of the A3 motorway, the tunnel not only opens up new transport routes but also exemplifies innovative engineering and modern transport infrastructure. With its strategic location, the Kerenzerberg Tunnel plays a crucial role in promoting regional mobility and economic growth. The Kerenzerberg Tunnel is thus not only an infrastructural element but also a symbol of progress and connectivity in modern Switzerland. A key requirement for motorists is the mandatory vignette (motorway toll sticker) required to use Swiss roads.

The most important things in brief:

• The Kerenzerberg Tunnel is 6 kilometers long.
• The tunnel is part of the A3.
• A digital vignette is required to use the roads in Switzerland.

All important information about the Kerenzerberg Tunnel

The Kerenzerberg Tunnel, also known as the Kerenzer Tunnel, was opened in 1986 and stretches for nearly 6 kilometers through the Kerenzerberg near Lake Walen. At 5,760 meters long, it is one of the five longest road tunnels in Switzerland.

The tunnel is generally used in one direction only, from Zurich toward Sargans and Chur. It is part of the A3 motorway, which provides an important connection between Zurich and Sargans, significantly reducing traffic congestion on the Walensee road, which runs along the lake in both directions.

In the opposite direction, the A3 runs closely along Lake Walen, passing through six smaller tunnels. Parallel to the Kerenzerberg Tunnel is the Kerenzerberg Railway Tunnel, which is almost 4 kilometers long and was opened in 1960. The Kerenzerberg Tunnel is currently undergoing extensive renovation, which includes the construction of a safety tunnel.

The renovation of the Kerenzerberg Tunnel

The Kerenzerberg Tunnel is currently undergoing a comprehensive renovation. This began in 2020 and is expected to last until 2026. The renovation includes the construction of a parallel safety tunnel and extensive repair work on the tunnel itself. This is intended to increase safety.

The vignette requirement for the Kerenzerberg Tunnel

The general Swiss vignette requirement also applies in the Kerenzerberg Tunnel. You can conveniently purchase the digital one-year vignette for Switzerland online in our shop. Your license plate will be registered.

FAQ about the Kerenzerberg Tunnel

Is a vignette or toll required for the Kerenzerberg Tunnel?

As in all other parts of Switzerland, the typical vignette requirement applies here. However, there is no separate toll.

How long is the Kerenzerberg Tunnel?

The Kerenzerberg Tunnel has a total length of 5,760 metres

Construction work and accessibility

Despite current construction work, the Kerenzerberg Tunnel remains open. The tunnel will be closed at night from 8 p.m. to 6 a.m., and full closures may occur during the day. Further information is available on the official website.