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GZ Finalist at International Tunnelling Awards

Hong Kong, December 1, 2011 – GZ has been elected Finalist in the “International Tunnelling Project of the Year 2011” … Read more »

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Breakthrough of the Caldecott Tunnel’s Fourth Bore Marks a Major Project Milestone

Oakland, California, November 29, 2011 – the tunnel “breakthrough” occurred on November 29, 2011 at 2:37pm, when the tunnel’s eastern … Read more »

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