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

More News


Laboratory Certifications

  • IL & WI State DOTs
  • ASTM


Firm Certifications

  • DBE with IDOT
  • MBE with City of Chicago

Read More


LPV111, New Orleans East Back Levee, Louisiana: “Management was attentive to our needs, provided the advice needed to make cost effective decisions, and followed through with action in the field.  This was a very high profile project with a one …

Read More


INTERRA has provided  engineering, inspection, and testing services for municipal clients that demand quality work products and responsive service on a consistent basis.  Municipal clients maintain long-term relationships with INTERRA because they know they can count on us to get the job done…no matter what the job is.

As one example of many, a municipal client initially retained INTERRA to determine subsurface soil stratification for a new salt dome.  This project was then quickly followed by a subsurface investigation for a proposed roadway reconstruction project and another to perform asphalt coring and test analyses.  Ultimately, INTERRA was retained for another four geotechnical investigations in rapid succession.

Additional examples of INTERRA’s work with municipalities can be found below.