Board Members

Glen Wheeler


Company: James W. Fowler Co.

Glen is the Chief Tunnel Engineer for the James W. Fowler Company, based in Dallas Oregon. He leads technical development of JWF’s most challenging trenchless projects with a focus on new tunnel installations including microtunneling, hard rock tunneling, pipe ramming, earth pressure balance tunneling, and deep shafts. He earned his Bachelor of Science degree in Mining Engineering and a Graduate Certificate in Underground Construction and Tunneling from the Colorado School of Mines. Glen continues to further education and training in the trenchless construction industry by authoring technical papers, presenting case studies, and participating on technical publication committees.

Rylee Archuleta

Vice Chair

Company: Leeway Engineering Solutions

Rylee is a civil engineer specializing in sanitary and storm sewer design and inflow and infiltration study and reduction planning. She is an employee at Leeway Engineering Solutions in Portland, Oregon where she is currently managing multiple projects related to trenchless rehabilitation design. Rylee obtained a B.S. in Civil Engineering from the University of Portland and is licensed as a Professional Engineer in both Oregon and Washington. She is an active member of NASTT and currently serves as the Vice Chair of the PNW chapter. In her free time, Rylee enjoys spending time outdoors, whether it’s biking, skiing, or enjoying a cool drink on a sunny patio – preferably with her dog in tow.

Heidi Howard


Company: Staheli Trenchless

Heidi is the Operations Manager at Staheli Trenchless and the glue that keeps the company together and running smoothly.  Heidi performs a wide variety of tasks including, but not limited to, managing STC’s accounting and bookkeeping functions, human resources needs, marketing materials and proposals, and jumping in as support staff on project work when needed.  In her spare time, Heidi can usually be found at the barn with her beloved horse, Junior, exploring the backroads in her Jeep, or relaxing with a good book.

Diana Worthen


Company: Cascade Trenchless

Diana is the owner and principal engineer of Cascade Trenchless Consulting, based in Portland, Oregon. Cascade Trenchless specializes in delivering trenchless projects from concept through construction, providing trenchless feasibility and engineering expertise with a focus on collaboration, attention to detail, and risk mitigation. Diana’s practice focuses on water & wastewater, transportation, environmental, and energy projects located throughout North America. Her projects have utilized a range of trenchless technologies including horizontal directional drilling, auger boring, pilot tube guided boring, microtunneling, open shield tunneling, and pipe ramming. Diana earned her Bachelor of Science and Master of Science degrees in Civil Engineering from Washington State University and is a registered professional engineer in Oregon, Washington, Idaho, Montana, California, and Texas.