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)

Related Projects

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The Causeway heading into Auckland

The State Highway 16 Causeway Upgrade

Providing innovative and cost-effective ground improvement strategies to overcome deep and soft soil challenges on the SH16 Causeway upgrade

Tetra Tech supported 222 kilometers of roadway improvements in the Philippines.

Roadway Improvements in the Philippines

Providing sustainable architecture-engineering services to improve road conditions and promote economic development in the Philippines

Rising water of the Quill Lakes threatening Highways 6 and 16.

Engineering Design Services for Flood Prevention, Saskatchewan

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Pearl Creek flooding Highway 22 during embankment failure

Rapid Response and Critical Repair of Washed-out Highway, Saskatchewan

Providing emergency response and time-critical repair of the breached Highway 22 embankment at Pearl Creek in Saskatchewan


Konza Technopolis—the New Silicon Savannah

Providing program management, architecture-engineering services, and training to develop a new smart city in Kenya