Welcome to the Northwest Chapter of NASTT

The Pacific Northwest Chapter is a richly diverse group of contractors, manufacturers, engineers, consultants, utilities, and public works entities. With a valuable wealth of knowledge, our goal is to promote the utilization of trenchless technologies through education. The PNWNASTT also serves to develop relationships that foster communication of ideas and experiences in order to promote further understanding of the available trenchless construction options. Take a look at our Project Highlights page for photos from projects that focus on the solutions offered by using trenchless technology. Our members are continuing to load new project case histories, product information, and trenchless-related articles and papers to the site in order to improve the accessible knowledge base available online, so check in periodically as we expand our online presence. Please take some time to navigate our site and if you wish to know more about a particular trenchless method or would like to find out more about our organization, do not hesitate to contact any of the PNW Chapter Board Members or use our Business Directory to find information about our current members. If you are interested in becoming a member of NASTT please visit the link below. Join Now

Officers and Board Members

Glen Wheeler


Rylee Archuleta

Vice Chair

Heidi Howard


Diana Worthen


Technical Papers, Books, and More!

NASTT has a full library of technical papers, books, and more!

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.