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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INTERRA’s engineering, geotechnical, and environmental professionals have successfully completed for clients in a wide variety of industries and settings, some of the most demanding projects encountered – in terms of scale, schedule, coordination, and physical constraints.  With a team-based effort to provide solutions that are practical, innovative, and cost-effective, INTERRA routinely provides its expertise to achieve project objectives.

For insight into just a few of our many engineering project successes, we invite you to review the following project profiles.