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

Call closed -No-Dig Award 2017

The call for No-Dig Award 2017 is closed. The winners will be announced at the Trenchle... Read more

Upcoming Society Events

No-Dig Downunder 2017

12-15 September, Gold Coast Convention ...

NASTT No Dig Show 2017

Mar-29-2018, Palm Springs Convention ...
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Trenchless World Congress in Medellin, Colombia

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CzSTT Conference - The Czech Society for Trenchless Technology

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No-Dig Downunder 2017

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NASTT No Dig Show 2017

by pavoneggi