Facts and Figures of the new Albula Tunnel

Facts and Figures of the new Albula Tunnel -

The project of the construction of the new Albula Tunnel has been planned since a long time. Read more about the facts and figures of the tunnel as well as the different steps to be achieved over the years.

Planning and completion

       

12 years (2011 – 2022)

Construction time

       

8½ years (2014 – 2022)

Length of Albula Tunnel II (new construction)

       

5,860 m

Length of Albula Tunnel I (existing structure)

       

5,864 m

Transverse access links to safety tunnel

       

12

Height of tunnel from top of rail

       

5.44 m

Inner width of tunnel 

       

5.76 m

Maximum altitude

       

1,821 metres above sea level

Attainable maximum speed in tunnel

       

120 km/h

Finance

       

Federal government 85%, canton 15%

Volume of excavation

       

244,000 m3 (solid material)

Trains per year

       

Over 15,000

Project phases

2006

       

A full inspection of the tunnel reveals serious damage to its structure and an urgent need for an equipment overhaul

2008

       

A conceptual study reveals possibilities regarding integral renewal of the infrastructure   

2009

       

Engineers and other specialists are engaged to draw up preliminary projects based on concepts entitled “repair” and “rebuilding” respectively

2011

       

A decision is made in favour of reconstruction

2011

       

Start of construction work on the new Albula Tunnel II

2012

       

Examinations of the subsoil and preparatory work

2013

       

A project dossier is submitted to the Swiss federal government

2014

       

The corresponding building permit is issued. Preparatory work begins officially in June, with the ceremonial cutting of the first turf. This includes clearing the corresponding building sites, upgrading the existing Albula Tunnel, and preparation of the landfill site at Las Piazzettas

2015

       

Preliminary excavation work is carried out at the tunnel portals, and tunnelling begins from both the Preda and Spinas ends

2016

       

The Raibler cellular limestone is penetrated

2017

       

The final breakthrough takes place, and work on the interior can begin

2018

       

The tunnel’s preliminary structure can be completed

2019

       

Installation of the permanent way and electrical equipment, such as overhead and supply conduits

2020

       

Installation of the railway systems is completed, tests are carried out and approvals are issued

2021

       

Inauguration of the new Albula Tunnel

Refurbishment of the original structure to convert it into an escape tunnel

2022

       

Inauguration of the safety tunnel

At work for the rebuilding of the Albula Tunnel

At work for the rebuilding of the Albula Tunnel

Many employees will be contributing, over the next few years, to the successful completion of the Albula Tunnel project. Professionals from various sectors will be making a collaborative effort on the extensive construction site.

The construction site

The construction site

Work is being done on your behalf in Albula. The original Albula Tunnel is coming to the end of its useful life, and now needs either extensive repairs or complete rebuild. After examining in detail the alternatives, the RhB took the decision in 2010 to build a completely new metre-gauge railway tunnel, and convert the existing structure into a safety tunnel.