Global Outreach

International Tunnelling and Underground Space Association

International Tunnelling and Underground Space Association

The Underground Construction Association (UCA) serves as the accredited U.S. delegate to the International Tunnelling and Underground Space Association (ITA) with the goal of connecting American practitioners in the underground construction industry to a global network of professionals and the exchanging of expertise.

Founded in 1974 by the initiative of nineteen Nations, the International Tunnelling and Underground Space Association (ITA) gathers 78 Member Nations and 300 corporate or individual Affiliate Members and promotes tunneling through their General Assembly which is hosted at the occasion of the yearly World Tunnel Congress. 

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ITA Working Groups
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Future ITA Events
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Tunnelling Association of Canada

As the Canadian representative body of the International Tunnelling Association (ITA) the Tunnelling Association of Canada helps ensure Canadian tunnelling practitioners are connected to a world-wide network of experts keeping Canadian practice at the highest standards of international excellence.

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Advocating for the Underground Option
The Tunnelling Association of Canada Advocacy video was publicly presented at TAC 2014 Conference in Vancouver, Canada.