In keeping with our full-service reputation and client-focused approach, Tetra Tech provides the complete range of services to the transportation sector. Whether the project is a residential street improvement, a major interchange, an environmental assessment, a corridor study, or a major structural design, our professional, experienced staff will provide support from conception through study, design, and construction.

Tetra Tech combines large-company resources with regional knowledge and expertise in planning, permitting, design, construction administration, and program management consulting for highways, structures, transit systems, and aviation facilities.

Our regional approach and consistent delivery has resulted in the majority of our projects being repeat work with longstanding clients. We are proud of our record and recognize that our success depends on meeting or exceeding our clients’ expectations for delivery, innovation, quality, and service.


  • Transportation planning
  • Traffic studies
  • Environmental permitting and studies
  • Highway and roadway design
  • Bridges and retaining structures
  • Rehabilitation and structure reinforcement design
  • Tunnels and buried structures
  • Noise barriers
  • Traffic signals and intersection design
  • Intelligent transportation systems
  • Transit studies
  • Transit facility design
  • Stormwater design
  • Survey, Geographic Information System (GIS), and remote sensing
  • Right-of-way engineering
  • Program management
  • Construction management
  • Cost control and contract management 
  • Hydrology, hydraulic, and drainage analysis
  • Emergency preparedness and response
  • Contaminated site management
  • Transportation of Dangerous Goods (TDG)

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