Our Team

Serving our clients since 1974

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

Civil & Environmental Engineer,
Sr. Principal

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

Civil & Environmental Engineer,
Chief Operating Officer

Andrew Alvaro, B.S.
Andrew Alvaro, B.S.

Environmental Services Director

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

Irrigation Engineer,
Principal

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

Civil & Environmental Engineer

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

Civil Engineer,
Sr. Project Manager

Tom Bautista, B.S.
Tom Bautista, B.S.

Environmental Engineer

Jeff Beverley, B.S., P.E.
Jeff Beverley, B.S., P.E.

Civil Engineer

Jason Biesinger, M.S.
Jason Biesinger, M.S.

Civil and Environmental Engineer

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

Principal

Trevor Blanco
Trevor Blanco

Information Technology

Connor Butterfield B.S., P.E.
Connor Butterfield B.S., P.E.

Civil Engineer

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

Civil Engineer,
Principal

Bob Chandler
Bob Chandler

Drafter

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

Environmental Engineer

Danisa Dolder, M.S.
Danisa Dolder, M.S.

Civil Engineer

George Elliott, M.S., P.E.
George Elliott, M.S., P.E.

Civil Engineer

Kellie Goddard, B.S., CPSM
Kellie Goddard, B.S., CPSM

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,
Project Manager

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

Sr. Principal

Cindy Aiello-Harris
Cindy Aiello-Harris

CAD Manager

Easton Hopkins, B.S.
Easton Hopkins, B.S.

Civil Engineer

Josh Hortin, M.S.
Josh Hortin, M.S.

Civil Engineer

Katie Gibson Jacobsen, B.S., P.E.
Katie Gibson Jacobsen, B.S., 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,
Sr. 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, B.S.
Stephen Marginson, B.S.

Civil Engineer

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

Sr. Principal

Trey McGhin, M.S, P.E.
Trey McGhin, M.S, P.E.

Civil Engineer

Laura Moyer, MAcc.
Laura Moyer, MAcc.

HR Manager & Accounts Payable

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

Civil and Environmental Engineer

Ben Nelson, B.S.
Ben Nelson, B.S.

Civil Engineer

Tim Newell, M.A., P.L.S., R.L.A.
Tim Newell, M.A., P.L.S., R.L.A.

Survey Manager

Kate Nicponski-Herbert, B.S.
Kate Nicponski-Herbert, B.S.

Geologist

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, B.S., P.E.
Richard M. Noble, B.S., P.E.

Civil and Environmental Engineer

Aaron Olney, B.S.
Aaron Olney, B.S.

Civil 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, Civil and Environmental Engineer,
Project Manager

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

Special Projects Advisor

Aaron Spencer, B.S., P.E.
Aaron Spencer, B.S., P.E.

Civil Engineer

Zak Steele, B.S., P.E.
Zak Steele, B.S., P.E.

Civil and Environmental Engineer,
Project Manager

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,
Sr. Project Manager

Ted Wallace, B.S.
Ted Wallace, B.S.

Geologist

Drew Wangsgard, M.S.
Drew Wangsgard, M.S.

Civil Engineer

Ry Weber, M.S.
Ry Weber, M.S.

Civil and Environmental Engineer

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

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