The Swiss state rail operator and infrastructure manager SBB is going to build a new rail tunnel in Bern. Even if it is only 440 metres in length, it should significantly boost capacity: Freight and passenger traffic will no longer have to wait for each other.
“The core of the construction project is the new ‘Wankdorf Tunnel’, which is being built beneath the existing tracks”, says SBB. Besides the tunnel, a fourth track will be built alongside other minor upgrades.
“Specifically, the route from Bern to Wankdorf station will descend over a ramp of around 290 metres, lead through a tunnel of around 440 metres and then emerge again over a ramp of around 240 metres just before Ostermundigen.” The project will cost the equivalent of 750,5 million euros.
“With the new ‘Wankdorf Tunnel’, more trains can run on the route, as freight and passenger trains no longer travel on the same tracks and do not have to “wait for” each other” SBB adds.

Basel – Domodossola to benefit
The line between Bern Wankdorf and Münsingen is currently operating at full capacity, the Swiss infrastructure manager explains. Separating freight and passenger traffic will significantly boost capacity. For freight, it would mean additional capacity between Bern and Thun, greater stability in the Bern area and between Basel and Domodossola, Italy.
The earliest possible start date for the construction works is mid-2026, says SBB. The company expects the work to last for at least 13 years. “The long construction period is due to the extremely tight space conditions in the construction perimeter. The work is being carried out in the narrow corridor between the already very busy railway lines and the motorway bridge and while the railway is still in operation.”