Spalding DeDecker
Solutions That Shape Communities
Rochester Hills, MI+4
Explore capabilities, project experience, and office locations to build your shortlist.
Solutions That Shape Communities
Rochester Hills, MI+4
Engineering the Future of Transportation

Quality Engineering Beyond Your Expectations
Rocky Hill, CT+1

Turning Visions into Reality
Seattle, WA

Oregon's longest-standing independent transportation engineering and planning practice, with over 40 years of industry experience
Portland, OR+2

Professional Engineering Consulting and Construction Inspection Services
Princeton, NJ

Virginia Civil Engineers
Manassas, VA+8

Focused on the Future, Built on Tradition, Committed to Excellence... Since 1901
Mt. Laurel, NJ

Moving Forward Together
Pottstown, PA

Engineering Services and Highway & Roadway Design.
Marianna, FL

Traffic Engineering and Traffic Studies & Impact Analyses.
Metairie, LA

Trusted advisors serving our clients nationwide
Brookfield, WI+5
Traffic Engineering and Traffic Engineering Analysis.
Traffic Engineering and Access Studies.

Civil Engineering and Master Planning.
Manchester, TN

Build On Our Knowledge!

No Problem
Overland Park, KS+3
Your Vision. Our InNovation.

Experience Dedicated to Your Success
Dallas, TX+3

Civil Engineering and Feasibility Studies, Land Planning, and Site Development.
Oakland, CA+1

Innovative Approach. Essential Expertise.
Fresno, CA+1

Quality, Precise and Dependable Engineering Services
Maumee, OH+1

Innovative & Efficient Engineering Solutions
Cleveland, TN+2

Innovative civil engineering solutions for modern infrastructure
Santa Fe, NM