Quality, Service & Commitment


  • 26 Oct 2017

    INTERRA To Host Ribbon Cutting With Bolingbrook Mayor Celebrating Going Green

  • 21 Jul 2017

    Recipient Of Service Award Thanks INTERRA for Engineering Support With Jane Byrne Circle Interchange

  • 15 Mar 2017

    INTERRA, Inc. Full-Time Field Technician Openings in Franklin, WI

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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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With this letter we provide our confidence in INTERRA in providing comprehensive field and laboratory testing for projects involving soils investigations, design and construction monitoring … Their services are consistently ontime and within budget…

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Circle Interchange Flyover Project Featured in “Roads & Bridges” Magazine

IDOT’s Circle Interchange Flyover project, now featured in Roads & Bridges Highway Construction article, encompasses the construction of a new flyover ramp from the Northbound Dan Ryan Expressway (I-90/94) to I-290 West. The structure was originally erected over 50 years …

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ACEC Wisconsin Awards Hoan Bridge Best of State Award for Structural Systems

The American Council of Engineering Companies of Wisconsin (ACEC Wisconsin) awarded Michael Baker International, Inc. a Best of State Award for Structural Systems for I-794 Lake Freeway, Hoan Bridge. The completion of the Hoan Bridge Project was celebrated with a …

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INTERRA, Inc. Celebrates 20 Years

On this last day of March, INTERRA, Inc. celebrates and reflects on its 20 year anniversary since this company was founded on the motto: “Quality, Service and Commitment” in March of 1996. Every project since that founding moment has provided …

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