10.07.2017 - 38 per cent of the tunnel now broken through
The headwork in Preda and Spinas is continuing steadily. The focus of the current phase of construction is the connection of the headwork from Preda to the cavern. The disused Beverin Bridge in front of the portal in Spinas is being replaced.
So far 2,200 metres of the new Albula Tunnel have been excavated. At a total length of 5,860 metres, this is around 38 per cent of the distance. The headwork from Preda has now reached the 1,100-metre mark and the miners are just 90 metres from breaking through into the cavern. It is expected that the headwork from Preda will break into the cavern in September 2017. From the Spinas side the miners have so far worked their way through 980 metres of hard Albula granite.
New bridge in Spinas
At the same time as the blasting operations inside the mountain, the old Beverin Bridge in front of the portal in Spinas is being replaced by a new 18-metre reinforced concrete composite bridge. To ensure the full timetable could be kept in place, the new bridge is being prefabricated and put into place in sections while trains do not operate during the night. The entire construction project is thus a very elaborate one and is being carried out in stages. The new bridge fulfils the requirements of the UNESCO World Heritage route.