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In the course of the Tunnelling Awards 2015, the International Tunnelling Association (ITA), with its head office in Geneva, awarded the Corrib Tunnel project the prize for best environmental initiative of the year. Wa 
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Wayss & Freytag Ingenieurbau AG, as a member of the bidder consortium „Isentalautobahn GbR“ with the partners Berger Bau, BAM PPP A-Modell Holding GmbH and Eiffage S.A., was awarded the contract for the construction  
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The Arab Contractors / Orascom Construction Joint Venture awarded Wayss & Freytag Ingenieurbau AG, Tunnelling Division, the contract for the construction of two road tunnels below the Suez Canal at Port Said by means 
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Thomas Geisel, Mayor of Düsseldorf, opened the Kö Tunnel in Düsseldorf on 10.11.2015 after a construction period of approx. two and a half years.
Wayss & Freytag Ingenieurbau, Area Centre, built the 870 m long 
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Kö Tunnel in Düsseldorf opened 1
Shortly before the motorway tunnels Grouft and Stafelter Berg in the Grand Duchy of Luxembourg were due to be opened to traffic, 2,365 Luxembourg runners took advantage of the unique possibility to run through them. 55 e 
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