Switzerland

Saaser Tunnel –
Saas Bypass opened

The 3.7 km long Saas Bypass on the A28 national highway with the 2.6 km long, 2-lane Saaser Tunnel (= 69 % of the route) and the parallel 2.3 km long safety tunnel was opened on October 21, 2011 following 9 years of construction.

Together with the 2 cut-and-cover sections at the Saas West interlink and the Waldhof portal the Saaser Tunnel is 2,577 m long with two 3.50 m wide carriageways in 2-way traffic and two 3.50 m wide hard shoulders at the sides. The smallest curve radius in the tunnel amounts to 600 m. From the Saas West interlink the tunnel rises with a 2.5 % gradient towards Waldhof....

Find out more in

tunnel 02/2012

Find out more in

tunnel 02/2012

Ressort:  Nachrichten | News
subscription Content

Related articles:

Issue 07/2012 Switzerland

Küblis Bypass: More than 60 % of Tunnel excavated

The Küblis Bypass scheme belongs to the Dalvazza-Selfranga project. Firstly the Klosters Bypass was opened in 2005 and then the Saas Bypass in 2011; now the 3,350 m long Küblis Bypass between...

more
Issue 05/2016 Switzerland

Küblis Tunnel opened after Eight Years of Construction

At the end of June 2016, the 3350 m long Küblis bypass between Dalvazza and Prada was opened to traffic in the Canton of Graubünden in Switzerland. As a result the municipality Küblis has been...

more
Issue 05/2013 Switzerland

Roveredo Bypass: Tunnel Breakthrough

A 2-lane bi-directional tunnel is being built for the Roveredo Bypass – with shoulders at both sides and 2 lay-bys. It has up to 3,000 m overburden and runs north with 0.8 % gradient lying in an arc...

more
Issue 05/2014 Switzerland

Küblis Bypass: Tunnel Roughwork completed

The 3350 m long Küblis Bypass between Dalvazza and Prada in the Canton of Graubünden is intended to relieve the municipality of through traffic on the A28 national highway. The 2255 m long tunnel is...

more
Issue 07/2010 Switzerland

Silvaplana Tunnel – High Demands on Safety

For generations Silvaplana has represented an important traffic hub between North Bünden and the Engadin. Transit traffic is increasingly being seen as a burden. At the end of 2007 an outline project...

more