immo!nvest – Die Plattform für Standorte und Immobilien

Tag: Doppelspur

  • Implenia is leading the construction of the Ligerz Tunnel

    Implenia is leading the construction of the Ligerz Tunnel

    The IBD consortium has been awarded the contract by SBB to build the Ligerz tunnel, Implenia announced in a press release. The construction and real estate company from Opfikon is the leader of the IBD consortium. In addition to Implenia, the consortium includes the construction companies Bernasconi from Luterbach SO and De Luca from Biel BE.

    The contract includes the construction of a 2.1-kilometre-long double-track tunnel with four escape tunnels and a 114-metre-long viaduct for the N5 motorway exit, as well as various additional structures. The contract is worth a total of 220 million Swiss francs. Around CHF 150 million of this is Implenia’s share.

    The contract is Lot 2 of the Ligerz-Twann double-track extension, which is intended to eliminate the rail bottleneck on the Jura river line between Lausanne and Biel. The Zurich-based construction and real estate company is deploying its experts from the fields of civil, tunnelling, special civil engineering, structural engineering, railway engineering and maritime work for the project. “We are looking forward to executing this large and complex railway infrastructure project together with our ARGE partners and to once again demonstrating our many years of experience and expertise in this field,” Christian Späth, Head Division Civil Engineering at Implenia, is quoted as saying in the press release. The location of the tunnel in protected areas is described there as a major challenge for implementation.

  • Tunnel instead of bottleneck: SBB upgrades line between Zurich and Winterthur

    Tunnel instead of bottleneck: SBB upgrades line between Zurich and Winterthur

    Today, all rail traffic between Zurich and Winterthur uses the only double-track connection via Effretikon. This section of the line is therefore a veritable bottleneck. To eliminate the bottleneck, SBB is upgrading the line on behalf of the federal government. A new double-track line through the Brüttener Tunnel as well as the expansion of four stations and existing lines should bring relief.

    The core of the Zurich-Winterthur multi-track project is the Brüttener Tunnel. It will be about 9 kilometres long and have two tunnel tubes with one track each. Trains will travel at 160 kilometres per hour. The journey time in the tunnel is around 3 minutes.

    The northern portal of the Brüttener Tunnel is at Tössmühle before Winterthur. The tunnel tubes divide and end in two tunnel portals in the south: at Bassersdorf and at Dietlikon. This route is the fastest and most efficient connection between Zurich and Winterthur, as it connects both Zurich Airport (via Bassersdorf) and Zurich HB (via Dietlikon) directly to Winterthur. Because most of the new double track runs underground, no major interventions in the landscape will be visible after construction.

    The project will increase the rail capacity between Zurich and Winterthur by 30 per cent to around 900 trains and 156,000 passengers per day. Two long-distance lines will run between Zurich and Winterthur every quarter of an hour in future.

    The project will be made public at the end of May 2023. If the project progresses without any appeal proceedings, construction work is currently expected to start in the mid-2020s and the service could be put into operation in the mid-2030s.

    With the “2035 expansion stage”, the federal government is investing around CHF 12.89 billion in numerous projects to expand the railway infrastructure throughout Switzerland. The “Zurich-Winterthur multi-track” project is the largest of these projects, with estimated costs of around CHF 2.9 billion.