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Transportation projects are essential to public safety and a strong economy. Our team helps them move forward, no matter how challenging or complex – from highway construction to transit to waterways to airports, and all points in between.

SWCA has developed a transportation consulting practice with highly skilled project managers supported by teams of scientists, planners, and subject matter experts. From environmental planning to permitting and compliance, SWCA has the experience to help move transportation projects forward.  

SWCA has contracts that support departments of transportation and public works, port and airport authorities, regional transportation authorities, and engineering firms throughout the country. In every case, wherever the project and however large or small, our single focus is to provide meaningful transportation consulting, constructive ideas, and active project management to support our clients’ projects through completion, efficiently and successfully.

Association Involvement

• Arizona Airports Association

• Arizona Transportation Builders Association

• Association of Pacific Ports (APP)

• Transportation Advocacy Group Houston

• Women in Transportation

Relevant Services


  • Constraints and Feasibility Studies
  • GIS Mapping and Alternatives Analyses
  • Owner’s Environmental Representative and Staff Augmentation
  • Community-based Transportation Plans and Land Use Needs Assessments
  • Section 4(f)/6(f) Evaluations

Licensing and Permitting

biological resources

cultural and historic resources

construction environmental compliance

Project Spotlights

Meet the Experts

Sr. Client Services Director

Steve Stielstra

Steve brings more than 30 years experience, as both a proponent and a consultant, in strategic planning, policy development, permitting, team building, project management, and complex problem solving for infrastructure and facilities programs and projects.

sstielstra [at] (Contact Steve  →)
Matt Zoss | Vice President, Rocky Mountain Plains

Matt Zoss

Matt’s expertise includes environmental construction compliance, permitting, field surveys, and project management on large transportation, energy, and commercial projects. 

matthew.zoss [at] (Contact Matt  →)