Dan Dammann
Precision Pipe & Products, Inc.
Director of Business Development

John Danello
Gallagher Asphalt

Nicole Darling
Illinois Department of Transportation
Project Development Engineer

Howard Dashiell
Mendocino County
Director of Transportation

Job Davis
SealMaster

Alex Davis
Buchanan County Secondary Roads
Assistant County Engineer

John Mark Davis
Autauga County Commission
County Engineer

Brian Davis
Sangamon County, Illinois
County Engineer

Walter Davis-Oeth
Emmet/Palo Alto County
County Engineer

Hunter Daws
Limestone County Commission
Project Manager

Patrick DeChellis
Los Angeles County Public Works (Retired)
Former Deputy director

Bart Dennison
MasterMind, LLC
Professional Engineer

Grant Deterding
Randolph County Highway Department
Randolph County Engineer

Cynthia Deterding
Illinois Department of Transportation
Operations Design & Planning Engineer

Brennan Detrick
Valmont Industries
Regional Sales Manager

Bryan Dhume
Madison County Engineer
County Engineer

Gavin Diaz
Infotech
Lead: Mid America Territory Sales

Saar Dickman
Dynamic Infrastructure
CEO

Joe Dillon
Gallagher Asphalt Corporation
Technical Sales Manager

Brian Dilworth
Collins Engineers, Inc.
Inspections - Lead Engineer