Who We Are

Who We Are

We are a worldwide leader in tunnel design and engineering and our firm can look at a history of over 170 miles of successfully completed international tunneling projects.

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East Side Access

East Side Access

East Side Access is one of the most complex, ongoing metropolitan transportation projects in the US, located in the heart of Manhattan, New York. For the past decade, GZ has been involved in this endeavor rendering design and construction management services.

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Devil’s Slide Tunnel

Devil’s Slide Tunnel

GZ provided Integrated On-Site Team (IOST) support services for engineering and construction of two tunnels bypassing a stretch of California highway US 1 that is notorious for landslides.

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Crossrail

Crossrail

GZ provided expertise in design preparation incorporating sprayed concrete linings (SCL) for this project’s five London underground stations: Liverpool Street, Whitechapel, Bond Street, Tottenham Court Road and Farringdon.

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Featured Project

Vauxhall Station Upgrade Project

Vauxhall Station Upgrade Project

London Underground Engineering Consulting and Design Services: The Vauxhall Station Upgrade Project consists of congestion relief and Step Free Access … Read more »

Most Recent

See All News Vauxhall Station Upgrade Project receives the ITA Award for Renovation/Upgrading Project Of The Year

Vauxhall Station Upgrade Project receives the ITA Award for Renovation/Upgrading Project Of The Year

London Underground’s (LU) Vauxhall Station has recently been upgraded by the addition of a step free access from the ticket … Read more »

Most Recent

See All News GZ Finalist at ITA Tunnelling Awards 2016

GZ Finalist at ITA Tunnelling Awards 2016

GZ has been elected 1 of 3 finalists for the “Renovation-Upgrading Project of the Year” award for their Vauxhall Station Upgrade project … Read more »

Locations

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