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Alternative Project Delivery Solutions

Aerial view of the I-595 Express Concessionaire. Tetra Tech provides ongoing pavement management and life-cycle support
Photo courtesy of Matt Pierce, I-595 Express
Tetra Tech supports clients with alternative project delivery solutions for transportation infrastructure improvements.

Our interdisciplinary teams of professional transportation planners and traffic, highway, bridge, and asset management engineers are Leading with Science® by providing world-class technical services, ranging from artificial intelligence (AI) mechanisms for infrastructure assessments to predictive modeling for asset management to detailed 3D design modeling. Globally we maintain strong relationships with both public and private clients. Multi-year commitments and multiple national awards make us a trusted partner in delivering alternative delivery solutions.

Our experienced teams collaborate and contribute to fast-track transportation projects that address today’s challenges of moving people and goods. We support all project phases, from providing technical requirements and concepts for preliminary design for a client to advancing technical designs as a member of a design-build team and developing life-cycle maintenance plans for public-private partnerships.

A large pre-cast modular panel with two steel plate girders and reinforced concrete deck, being erected with heavy lift equipment


Our global transportation team supports design-build delivery to provide innovation, and in many instances, significantly reduce construction timelines for critical projects. We coordinate with clients, contractors, stakeholders, and designers to advance plans for early material procurement and environmental approvals, and to organize, manage, and advance multidiscipline design efforts to meet construction time constraints.

  • Owner’s engineer
  • Contractor’s engineer
  • Bridge and highway design
  • Construction management
  • Environmental permitting
  • Traffic management
Aerial view of Disraeli Bridges in Winnipeg, Canada, where Tetra Tech supported the replacement of two major structures

Public-Private Partnerships (P3)

Tetra Tech helps private concessionaires navigate the requirements of the governing body and achieve the goals of the project through specialists and experts that implement advanced methods, technologies, and automated intelligent construction processes. Our experts work across multiple geographies, bringing $14 billion of infrastructure support and serving 24 million end users annually. Tetra Tech supports and accompanies the owner in every phase of a project: planning, execution, and closure.

  • Owner’s engineer
  • Concessionaire’s engineer
  • Life cycle planning
  • Project auditing

We help our clients save approximately 20 to 40 percent of their life cycle asset management costs.

Aerial view of the I-595 Express Concessionaire. Tetra Tech provides ongoing pavement management and life-cycle support
Photo courtesy of Matt Pierce, I-595 Express

P3 Operations Support

In addition to involvement in design-build and P3 projects, Tetra Tech provides unique specialized services to P3 projects. Our team of transportation planners and asset management specialists facilitate the development of capital plans, and maintenance and rehabilitation strategies, to maintain and extend the life of transportation infrastructure. In the end, we help our clients save money–approximately 20 to 40 percent in their overall life cycle asset management costs. We can support concessionaires at any point within the project life cycle. Our services include:

  • Asset management and life cycle planning
  • Asset condition assessments
  • Compliance testing and remediation planning
  • Rehabilitation program development and optimization

Connect with us. Reach out to our transportation solutions experts.

Our featured alternative project delivery solutions highlights

I-595 Corridor showing multiple interchanges

Predicting Future Pavement Maintenance and Rehabilitation Needs for the I-595 Express

View of the Turcot Interchange toward the west end of the island of Montréal, between Lachine canal and St-Jacques’s cliff

Managing Montreal’s Turcot Interchange Project and Providing Post-Construction Inspection

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