The International Society for Trenchless Technology

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Why Dig? When there's a better way


The objective of the ISTT is to
"Advance the science, practice and application of trenchless technology for the public benefit,

What is Trenchless Technology?
Trenchless technology covers any techniques, processes or procedures, including the equipment, machines and materials involved, which minimises or eliminates the need for surface excavation or reduces environmental damage or reduces the associated costs for underground work.

altConference Papers:

“International No-Dig Conference Papers”
“About 1500 articles available in our database. The largest knowledgebase of our industry”
“All free for members and at a very low price for non members”

View Conference Papers

altISTT Photo Book

The Wonders of Trenchless Technologies: A Pictorial presents trenchless at work. Over 100 colorful and fascinating photos from throughout the world illustrate the global reach of trenchless.

Limited print, first come first served

What's New

Extended to 15th August -No-Dig Award

The call for No-Dig Award 2017 is now extended to 15th August! Please submit your entry online through the IS... Read more

A new grant program to assist Affiliated

ISTT is excited to announce a new grant program to assist Affiliated Societies’ education and training efforts. ISTT will provide up to £5,000 to Affiliated Societies selected to receive a grant. See ... Read more

Upcoming Society Events


25-26th May, Ankara, ...

Ville Sans Tranchée 2017

20-22nd June 2017, Paris, Parc des Expositions - Ile des ...

No-Dig Downunder 2017

12-15 September, Gold Coast Convention ...
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Trenchless World Congress in Medellin, Colombia

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Ville Sans Tranchée 2017

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No-Dig Downunder 2017

by pavoneggi