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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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 …

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Heritage Park Flood Control Facility, Wheeling, IL

The Metropolitan Water Reclamation District of Greater Chicago (MWRDGC) entered into an intergovernmental agreement with the Wheeling Park District and the Village of Wheeling to allow for the construction of the Heritage Park Flood Control Facility, which will provide the necessary compensatory storage for the U.S. Army Corps of Engineers’ (USACE) Levee 37 project located on the Des Plaines River. The project includes an expansion to the existing stormwater detention reservoir known as Heritage Lake, excavation of new floodwater storage areas east and west of Buffalo Creek, and passive and active recreation components.  Interra’s services on the project involve installation and monitoring of geotechnical instrumentation consisting of inclinometers, observation wells and deformation monitoring points; wave-equation analyses for pile driving operations; construction monitoring and laboratory testing for earthwork, cast-in-place concrete, cement-bentonite slurry wall and asphalt paving operations.