Federal Services


Affinis is a small business that performs in a big way. Our team is able to self-execute, full civil engineering work. We offer more than just hydraulic design and even have in-house survey capabilities. This means you’ll have one civil engineering firm as your point of contact throughout the course of your project.

Our experienced team understands the intricacies of working with the government. The best testament to this is our high ACASS ratings. With a focus on federal clients, we strive to continually improve, setting new standards in client service.

541310, 541330, 541340, 541360 and 541370


  • Infrastructure planning and design
  • Bridge and structural design
  • Civil/site planning and design
  • Consulting services
  • Water resources analysis and design
  • Levee and dam assessment, analysis, and design
  • Sustainable design and green solutions