Rylee Archuleta
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.
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.
Diana Worthen
Vice Chair
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.
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.
Jason Hsu
Secretary
Company: Staheli Trenchless Consultants
As a project engineer with three years of experience in the trenchless industry and eight years as a civil engineer, Jason brings a broad background in trenchless design, inspection, and construction management across a wide range of methods—including HDD, auger boring, pipe ramming, open shield pipe jacking, pilot tube guided boring, CIPP, and spiral wound lining.
Jason has had the privilege of working on complex infrastructure projects at Staheli Trenchless Consultants, primarily in Washington and Oregon, delivering trenchless solutions for municipal clients such as King County, the City of Bellevue, the City of Bellingham, and the Port of Portland. His roles have included both field inspections and design support, where he has led efforts in feasibility studies, alignment selections, geotechnical investigations, and field-driven changes.
His recent work at PDX involved full-time HDD inspection for a major geothermal heat pump installation transferring water underground to injection wells, while in Bellingham he oversaw installation of steel casing using Open Shield Pipe Jacking and Guided Auger Boring methods.
Jason is driven by a commitment to advancing trenchless technologies across the industry. Inspired by leaders such as Dr. Kim Staheli and NASTT Director Matthew Izzard at No-Dig 2025, he has begun volunteering within the organization and looks forward to contributing through future paper development, panel participation, and event support.
As a project engineer with three years of experience in the trenchless industry and eight years as a civil engineer, Jason brings a broad background in trenchless design, inspection, and construction management across a wide range of methods—including HDD, auger boring, pipe ramming, open shield pipe jacking, pilot tube guided boring, CIPP, and spiral wound lining.
Jason has had the privilege of working on complex infrastructure projects at Staheli Trenchless Consultants, primarily in Washington and Oregon, delivering trenchless solutions for municipal clients such as King County, the City of Bellevue, the City of Bellingham, and the Port of Portland. His roles have included both field inspections and design support, where he has led efforts in feasibility studies, alignment selections, geotechnical investigations, and field-driven changes.
His recent work at PDX involved full-time HDD inspection for a major geothermal heat pump installation transferring water underground to injection wells, while in Bellingham he oversaw installation of steel casing using Open Shield Pipe Jacking and Guided Auger Boring methods.
Jason is driven by a commitment to advancing trenchless technologies across the industry. Inspired by leaders such as Dr. Kim Staheli and NASTT Director Matthew Izzard at No-Dig 2025, he has begun volunteering within the organization and looks forward to contributing through future paper development, panel participation, and event support.
Heidi Howard
Treasurer
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.
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.
Glen Wheeler
Past Chair
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.
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.
Brian Gastrock
Board Member
Company: Coffman Engineers, Inc
Brendan O’Sullivan
Board Member
Company: Consor Engineers
Brendan serves in a variety of design and construction administration roles on major public improvement projects, including large-diameter transmission pipelines, water distribution pipelines, sanitary sewers, sanitary force mains, storm sewers, water storage facilities, pump stations, utility undergrounding, streetscape improvements, and transportation enhancements. He has also served in design, construction, trenchless technical lead, and project manager roles for water and wastewater design projects, and has become the firm’s expert on rehabilitation and new installation projects involving trenchless installation methods.
He brings a strong background in construction management and inspection, is a trusted resource for design and constructability review, and has a deep passion for trenchless technologies.
Brendan serves in a variety of design and construction administration roles on major public improvement projects, including large-diameter transmission pipelines, water distribution pipelines, sanitary sewers, sanitary force mains, storm sewers, water storage facilities, pump stations, utility undergrounding, streetscape improvements, and transportation enhancements. He has also served in design, construction, trenchless technical lead, and project manager roles for water and wastewater design projects, and has become the firm’s expert on rehabilitation and new installation projects involving trenchless installation methods.
He brings a strong background in construction management and inspection, is a trusted resource for design and constructability review, and has a deep passion for trenchless technologies.
Russell Porter
Board Member
Company: Stephl Engineering
Russ Porter is the managing member of Stephl Engineering. Stephl Engineering LLC is an Anchorage Alaska based civil engineering firm that specializes in trenchless technology and its application to projects in Alaska. They design a wide range of projects from CIPP (water and sewer), sliplining, pipe bursting, auger boring, pipe ramming, and HDD type trenchless applications. In addition, we also perform infiltration and inflow studies and condition assessments on water and sewer systems across Alaska. Russel has worked in the trenchless engineering field in Alaska for the past 17 years and is responsible for a wide range of projects including the ones listed above.
Russ Porter is the managing member of Stephl Engineering. Stephl Engineering LLC is an Anchorage Alaska based civil engineering firm that specializes in trenchless technology and its application to projects in Alaska. They design a wide range of projects from CIPP (water and sewer), sliplining, pipe bursting, auger boring, pipe ramming, and HDD type trenchless applications. In addition, we also perform infiltration and inflow studies and condition assessments on water and sewer systems across Alaska. Russel has worked in the trenchless engineering field in Alaska for the past 17 years and is responsible for a wide range of projects including the ones listed above.
Ryan Ward
Board Member
Company: J. D. Hair & Associates, Inc.
Ryan Ward earned a Bachelor of Science in Civil Engineering from Gonzaga University in Spokane, Washington. Shortly after graduation, he joined Michels Trenchless, Inc. (then Michels Corporation) as a field engineer. In this role, Ryan gained hands-on experience in the field working on Direct Steerable Pipe Thrusting, Microtunneling, and Auger Boring projects across Texas, Minnesota, Pennsylvania, Illinois, and North Dakota. His time in the field provided a deep understanding of the New Install Trenchless construction methods across both the heavy civil and oil and gas industries. The work demanded a strong ethic of creative problem-solving in a fast-paced environment, characteristic of the trenchless industry.
Ryan then transitioned to J.D. Hair & Associates, Inc. after it became part of the Michels Family of Companies. As a Project Engineer and later Project Manager, he supported Michels’ Design-Build projects through the design phase and provided trenchless crossing designs for JDH&A’s third-party clients. His Design-Build work included Microtunneling, Horizontal Directional Drilling, Sliplining, and Auger Boring projects in Oregon, Washington, and Missouri, serving the Heavy Civil and Power industries. In the conventional consulting role, he primarily focused on designing Horizontal Directional Drilling crossings for the oil and gas sector.
Ryan Ward earned a Bachelor of Science in Civil Engineering from Gonzaga University in Spokane, Washington. Shortly after graduation, he joined Michels Trenchless, Inc. (then Michels Corporation) as a field engineer. In this role, Ryan gained hands-on experience in the field working on Direct Steerable Pipe Thrusting, Microtunneling, and Auger Boring projects across Texas, Minnesota, Pennsylvania, Illinois, and North Dakota. His time in the field provided a deep understanding of the New Install Trenchless construction methods across both the heavy civil and oil and gas industries. The work demanded a strong ethic of creative problem-solving in a fast-paced environment, characteristic of the trenchless industry.
Ryan then transitioned to J.D. Hair & Associates, Inc. after it became part of the Michels Family of Companies. As a Project Engineer and later Project Manager, he supported Michels’ Design-Build projects through the design phase and provided trenchless crossing designs for JDH&A’s third-party clients. His Design-Build work included Microtunneling, Horizontal Directional Drilling, Sliplining, and Auger Boring projects in Oregon, Washington, and Missouri, serving the Heavy Civil and Power industries. In the conventional consulting role, he primarily focused on designing Horizontal Directional Drilling crossings for the oil and gas sector.