The source of our spark is the people of HNTB, who aspire to achieve greater things every day.

Ted Zoli

Ted P. Zoli, III, PE

National Chief Bridge Engineer

Sanja Zlatanic

Sanja Zlatanic, PE

National Tunnel Practice Chair

Tim G. Cahill, FAIA, NCARB, LEED® AP 

Architecture Practice Leader


Semyon Treyger, PE, SE

Bridges and Tunnels West Division Director

Jim Barbaresso

Jim Barbaresso 

Intelligent Transportation Systems National Practice Leader

Tony Shkurti

Tony Shkurti, Ph.D., SE, PE

Great Lakes Division Bridge Lead

Diana Mendes, AICP

Mid-Atlantic Division President

Gregory Le Frois

Gregory Le Frois, PE

National Toll Services Vice Chair

Gay Knipper

Gay Knipper

Senior Program Manager

Greg Albjerg

Greg H. Albjerg, PE

National Aviation Planning Practice Leader

Hans Hutton

Hans R. Hutton, PE, SE

Chief Bridge Engineer — Kansas City

Steven Cyra

Steven J. Cyra, PE, PTOE

National Traffic Operations Technical Lead

Michael Jones

Michael H. Jones, PE, SE

Senior Project Manager

John F. Szturo

John F. Szutro, RG, PG

Senior Project Manager and Chief Engineering Geologist - Kansas City

Matthew Riegel

Matthew Riegel, PE

Geotechnical Team Leader

Ray Sandiford

Ray Sandiford, PE

Geotechnical and Foundation Practice Leader

Mala Ciancia

Mala Ciancia, PG

Principal Engineer

Steve Hague

Steve Hague, PE, SE

Program Manager

Ron Deverman

Ron Deverman, CEP

Principal Environmental Planning Manager - Chicago

Charles Dodge

Charles A. Dodge, PE

Senior Project Manager

Gowen Dishman

Gowen E. Dishman, PE

Senior Resident Engineer

Doug Woodbury

Doug Woodbury, PE

Rail Systems Manager

Paul White

Paul White, PE 

Project Manager –  Rail Systems

Charles Miller

Charles A. Miller, Ph.D., PE, PTOE

Senior Project Manager

Jeff Siegel

Jeff Siegel

Technology Solutions Center Director

William Arnhart

William Arnhart, PE

Project Controls Director

Patrick Kennon

Patrick J. Kennon

Senior Project Manager

Walter Ivarson

Walter R. Ivarson, PE

Senior Project Manager and Water Resources Practice Leader

Associate Fellows

Babu Veeregowda

Babu Veeregowda, PhD, PE, PTOE

Project Director


Mark Huffer

Mark Huffer

Project Director


Steve Novosad

Steve Novosad

Senior Project Manager - Engineering