Quality, Service & Commitment


  • 22 Jan 2018

    Civil Engineer Needed

  • 08 Dec 2017

    INTERRA Honored With 2017 IRTBA Green Industry Achievement Award For Green Initiatives

  • 26 Oct 2017

    INTERRA To Host Ribbon Cutting With Bolingbrook Mayor Celebrating Going Green

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Laboratory Certifications

  • IL & WI State DOTs
  • ASTM


Firm Certifications

  • DBE with IDOT
  • MBE with City of Chicago

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Chicago O’Hare Airport, Terminal 6 Project: “We would like to extend our appreciation to you and all of your employees who worked on the Terminal 6 Project.  All work was performed professionally, accurately and thoroughly. Your commitment to quality and …

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Assuring that construction projects are delivered according to specification while meeting the objectives of the project owner is of critical importance to any project’s success.  INTERRA’s field inspection and field testing professionals fully realize that even the best engineering can be completely undermined by inferior construction practices and materials.  INTERRA, as owner and client advocate, helps bring confidence and trust that your project is being constructed as specified.

To learn how INTERRA’s inspection and field testing services can make a difference, please take a look at the following project profiles.