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Contractor appointed for the Korsvägen phase of the West Link

NCC Sverige AB and the German company Wayss & Freytag Ingenieurbau AG have been awarded the contract for the Korsvägen phase of the West Link. The contract is worth SEK 3.8 billion, and construction work is due to start in spring 2018.

The Korsvägen section is approximately 3.2 km (1.98 miles) long. This part of the West Link tunnel runs from Landala via Korsvägen and Örgryte/Jakobsdal to Almedal where it joins existing track. The parts of the tunnel in rock consist of a railway tunnel and a parallel service tunnel. Three sections will require concrete tunnels in clay and shafts to be dug. Korsvägen station will be built below ground at the interchange, with three entrances. The station will have one platform and two tracks, with preparatory work undertaken on a further two tracks and another platform. The section is expected to take six years to build.

"During the tender process, we placed great emphasis on the contractor's plans for carrying out the work, and the proposals have been assessed by a panel," says Bo Larsson, West Link Project Manager at the Swedish Transport Administration (Trafikverket). "The bids have been evaluated on the basis of both price and proposals for implementation."

The procurement process used what is known as a "prequalification" system. There has been widespread interest from abroad. Nine companies applied to submit a tender, and five of these were chosen by the Swedish Transport Administration to go forward to the next stage. Of these five, three actually submitted a tender.

Under the terms of the Public Procurement Act, the Swedish Transport Administration's decision is subject to review for a period of ten days following the awarding of the contract; after that time, a contract can be signed. As at today, 8 December, ten days have passed and we have been advised that no application for review has been made. The Korsvägen section of the West Link will be built by NCC Sverige AB and the German company Wayss & Freytag Ingenieurbau AG.

The contract for the Korsvägen section is one of the five principal West Link contracts. The Gülemak, Astaldi and Segermo consortium has previously been awarded the contract for the Haga section. NCC were awarded an ECI contact for the Central Station section earlier – phase one design. The invitation to tender for the Kvarnberget phase will be issued on 4 December with the deadline for tenders 23 April. The BEST contract (track, electrics/electronics, signalling and communications) will be put out to tender in early 2019.

The Swedish Transport Administration's West Link Project
The West Link is a railway line under central Gothenburg serving commuter and regional trains. It is approximately 8 km (5 miles) long, over 6 km (3.7 miles) of which is in tunnels. It includes new stations at Haga and Korsvägen that will provide additional access to the city and a new underground section at Gothenburg Central Station.

The West Link will make travelling within Gothenburg and West Sweden easier and reduce vulnerabilities in the rail system. It will double the capacity of Gothenburg Central Station, which is currently unable to accommodate additional trains. Faster and more frequent rail connections in West Sweden will bring new opportunities for growth.

Construction work to take place: 2018-2024. Installation and restoration: 2024-2026. Start of rail services: 2026. Cost: Estimated at SEK 20 billion (2009 price levels). The West Link is part of the West Swedish Package.

Contractor
The Korsvägen section of the West Link will be built by a consortium comprising NCC Sverige AB and the German company Wayss & Freytag Ingenieurbau AG. Ownership is 50% each. NCC is one of the biggest construction, infrastructure and property development companies in the Nordic region. Wayss & Freytag Ingeniurbau AG's main business is in construction and the international tunnelling market. The company is part of the Royal BAM Group, one of Europe's largest construction companies.

NCC – previous projects: (Sweden) The Göta Tunnel, Gothenburg – eastern section; The City Tunnel, Malmö; The City Line, Stockholm – Norrström Tunnel. (Singapore) Circle Line Mass Rapid Transit line.
Wayss & Freytag Ingenieurbau - previous projects: Silberburg Tunnel – a double-track rail tunnel in Germany; the Diabolo Project – transformation of the end station at Brussels Airport into a through station.