Tetra Tech has experience with a wide variety of project delivery methods, including design-build, engineering, procurement, and construction (EPC), build-to-print, and design-bid-build.

Tetra Tech self-performs many types of design-build and construction projects. This provides greater accuracy in cost estimating, fewer problems during construction, and realistic design and construction scheduling. Our design engineers, cost estimators, and construction managers have the experience to complete projects on time and within budget.

Tetra Tech provides EPC and design-build services for mining and minerals projects, industrial projects, transportation infrastructure projects, and international construction projects for U.S. federal clients such as the U.S. Army Corps of Engineers and the U.S. Air Force.


  • Detailed design
  • Cost estimating
  • Procurement
  • Logistics
  • Bid conditioning and negotiations
  • Project management
  • Subcontractor management
  • Scheduling
  • Construction
  • Commissioning