Who are we

NASTT is the North American Society for Trenchless Technology, an engineering society of individuals, public organizations and private companies dedicated to the promotion and use of trenchless construction practices and technologies. NASTT was founded and incorporated as a non-profit organization in June 1990.

The Western Chapter of NASTT (WESTT) promotes the NASTT mission within our western region of Arizona, California, Hawaii, Nevada, and New Mexico. Regional Chapters offer members the opportunity to network with industry colleagues as well as attend educational events and share solutions for the betterment of our society.

Our mission is to advance the science and practice of Trenchless Technology for public benefit; to promote and conduct education, training, study and research in said science and practice for the public benefit; and to make available information thereof to all interested and concerned parties.

Officers and Board Members

Kate Wallin


Michelle Beason

Vice Chair

Rachel Martin


Mike Jaeger


Brian Avon

Past Chair

Jennifer Glynn

Jacquie Jaques

Sasha Mestetsky

Cindy Preuss

Devin Nakayama

Greg Watanabe

Thanks for Comming!

Queen Kapiolani Hotel

The 17th Annual Western No-Dig Conference, Exhibition, and Good Practices Course

Honolulu, HI

November 7-9

The WESTT Chapter is currently planning our upcoming annual conference! Watch for announcements via email from NASTT, WESTT.org and on LinkedIn at WESTT NASTT.

Interested in learning more? Click here for the conference flyer!

View the Conference Agenda | View Course Descriptions

Become a NASTT Member

When you join the North American Society for Trenchless Technology (NASTT), you’ll belong to the largest community of trenchless professionals in the USA and Canada committed to promoting better and more responsible ways to manage underground infrastructure and advance trenchless technology for the benefit of the public and the natural environment.

Join as a college student or individual professional or get group savings as an organization with a corporate or government/education/utility membership. Chapter membership is included with NASTT membership.