ARGE GUBRI, a joint venture led by Implenia, wins contract to renovate the Gubrist tunnel
Glattpark (Opfikon), 13 April 2022 – Zurich’s northern bypass, one of Switzerland’s most heavily used roads, is currently being expanded, with a third tube being added to the Gubrist tunnel. On completion of this new tube, the original two tubes, operational since 1985, are to be completely renovated. The ARGE GUBRI joint venture, a partnership between Implenia (40%, lead), Walo Bertschinger (30%) and Anliker (30%), has won the contract from the Federal Roads Administration (FEDRA) for the third section of this renovation. The total contract is worth CHF 184 million, of which Implenia’s share is approximately CHF 74 million. The project starts with preparatory work in autumn 2022 and will last about four years.
The existing tunnel tubes are no longer big enough to accommodate today’s traffic, so they are being enlarged: the road surface is being lowered by 30cm and the new suspended ceiling is being made higher. In order to increase safety standards, 22 new emergency bays are being built into the second tube, while the 24 emergency bays in the first tunnel are being renovated.
All of this work will be carried out with a special focus on occupational health and safety, and sustainability. The confined space in and around the tunnel presents a particular challenge for site logistics, and especially for delivery and removal of materials. This new contract is a good strategic fit for Implenia, whose Division Civil Engineering focuses on large, complex infrastructure projects.
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As Switzerland’s leading construction and real estate service provider, Implenia develops and builds homes, workplaces and infrastructure for future generations in Switzerland and Germany. It also offers tunnelling and related infrastructure projects in further markets. Formed in 2006, the company can look back on around 150 years of construction tradition. The company brings together the know-how of its highly skilled development, planning and execution units under the umbrella of an integrated leading multinational construction and real estate service provider. With its broad offering and the expertise of its specialists, the Group realises large, complex projects and provides client-centric support across the entire life cycle of a building or structure. It focuses on client needs and on striking a sustainable balance between commercial success and social and environmental responsibility. Implenia, with its headquarters in Opfikon near Zurich, employs more than 8,000 people across Europe and posted revenue of CHF 3.8 billion in 2021. The company is listed on the SIX Swiss Exchange (IMPN, CH0023868554). More information can be found at implenia.com.