Our Team

Serving our clients since 1974

Marvin E. Allen, M.S., P.E.
Marvin E. Allen, M.S., P.E.

Sr. Principal

Tyler G. Allen, Ph.D., P.E.
Tyler G. Allen, Ph.D., P.E.

Chief Operating Officer

Brian J. Andrew, M.S., P.E.
Brian J. Andrew, M.S., P.E.

Principal

Tyler Ashby, M.S.
Tyler Ashby, M.S.

Civil Engineer

Mark Atencio, M.S., P.E.
Mark Atencio, M.S., P.E.

Civil Engineer, Project Manager

Tom Bautista
Tom Bautista

Environmental Engineer

Jeff Beverley, P.E.
Jeff Beverley, P.E.

Civil Engineer

Jason Biesinger
Jason Biesinger

Civil and Environmental Engineer

William S. Bigelow, M.S., P.E.
William S. Bigelow, M.S., P.E.

Principal

Trevor Blanco
Trevor Blanco

Field Technician

Michael M. Chambers, M.S., P.E., PMP
Michael M. Chambers, M.S., P.E., PMP

Principal

Bob Chandler
Bob Chandler

Drafter

Brad Daley, P.L.S.
Brad Daley, P.L.S.

Surveyor

Tyler Daynes, M.Eng.
Tyler Daynes, M.Eng.

Environmental Engineer

Danisa Dolder
Danisa Dolder

Civil Engineer

George Elliott, P.E.
George Elliott, P.E.

Civil Engineer

Kellie Goddard
Kellie Goddard

Director of Business Development, Communications and Public Involvement

Scott Greenhalgh, M.S., P.G.
Scott Greenhalgh, M.S., P.G.

Geologist

Ridley Griggs, M.Eng., P.E.
Ridley Griggs, M.Eng., P.E.

Civil and Environmental Engineer

David E. Hansen, Ph.D., P.E.
David E. Hansen, Ph.D., P.E.

Sr. Principal

Cindy Aiello-Harris
Cindy Aiello-Harris

CAD Manager

Katie Gibson Jacobsen, P.E.
Katie Gibson Jacobsen, P.E.

Civil and Env. Engineer, Project Manager

Mark Jacobson
Mark Jacobson

Drafter

Celinda Jensen, M.S.
Celinda Jensen, M.S.

Civil Engineer

Delmas Johnson, M.S., P.E.
Delmas Johnson, M.S., P.E.

Civil Engineer, Project Manager

Noelle Johnson
Noelle Johnson

Office Manager & Accounts Receivable

Dan Jones, M.S., P.E., C.F.M.
Dan Jones, M.S., P.E., C.F.M.

Civil Engineer

Gordon L. Jones, M.S., P.E.
Gordon L. Jones, M.S., P.E.

President

Steven C. Jones, M.S., P.E.
Steven C. Jones, M.S., P.E.

Chief Executive Officer

Than Jones, M.S., P.E.
Than Jones, M.S., P.E.

Civil Engineer, Project Manager

Kai Krieger, M.S., P.E.
Kai Krieger, M.S., P.E.

Civil and Environmental Engineer

Doug Lewis
Doug Lewis

Civil Designer

Stephen Marginson
Stephen Marginson

Civil Engineer

Erin McAnally-Trejo, M.S.
Erin McAnally-Trejo, M.S.

Environmental Engineer

Benjamin D. Miner, M.P.A., P.E.
Benjamin D. Miner, M.P.A., P.E.

Sr. Principal

Laura Moyer
Laura Moyer

HR Manager & Accounts Payable

Mickey Navidomskis, M.S., P.E.
Mickey Navidomskis, M.S., P.E.

Civil and Environmental Engineer

Jacob Nielsen, M.S., P.E.
Jacob Nielsen, M.S., P.E.

Civil and Environmental Engineer

J. Lance Nielsen, M.S., P.E.
J. Lance Nielsen, M.S., P.E.

Sr. Principal

Richard M. Noble, P.E.
Richard M. Noble, P.E.

Civil and Environmental Engineer

Gregory J. Poole, M.S., P.E.
Gregory J. Poole, M.S., P.E.

Principal

Ashton Posacki
Ashton Posacki

Executive Administrative Assistant

Kayson M. Shurtz, M.S., P.E.
Kayson M. Shurtz, M.S., P.E.

Associate

Robert B. Sowby, Ph.D., P.E.
Robert B. Sowby, Ph.D., P.E.

Special Projects Advisor

Aaron Spencer, P.E.
Aaron Spencer, P.E.

Civil Engineer

Zak Steele, P.E.
Zak Steele, P.E.

Civil and Environmental Engineer

Garrick Stephenson, M.Eng., P.E.
Garrick Stephenson, M.Eng., P.E.

Civil and Environmental Engineer

Greg S. Thomas, P.E.
Greg S. Thomas, P.E.

Civil Engineer, Project Manager

Former Principals

William A. Luce, P.E. (Retired)
William A. Luce, P.E. (Retired)

Former Principal

Vaughn E. Hansen, Ph.D., P.E. (1921–2018)
Vaughn E. Hansen, Ph.D., P.E. (1921–2018)

Founder; Former Principal

We're Hiring!

Apply Now