Quality, Service & Commitment

INTERRA NEWS

  • 19 Sep 2018

    INTERRA Selected As Finalist To Receive The 2018 Illinois Sustainability Award

  • 08 May 2018

    IRTBA Announces INTERRA President To Serve On Green Council Board Of Directors

  • 28 Apr 2018

    INTERRA AWARDED IDOT PTB 187, ITEM 4 PROJECT

More News

Certified

Laboratory Certifications

  • IL & WI State DOTs
  • ASTM
  • AASHTO
  • USACE

 

Firm Certifications

  • DBE with IDOT
  • MBE with City of Chicago

Read More

Testimonials

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…

Read More

Village of Bolingbrook, IL

The scope of the work includes construction materials testing services for the various city projects, resurfacing, MFT program and Historic District projects to ensure proper installation of construction materials. All work will be performed per the IDOT Standard Specifications for Road and Bridge Construction and the Standard Specifications for Water & Sewer Main Construction of Illinois. Projects will be performed in accordance with the Illinois Department of Transportation specifications for QC/QA of both asphalt and concrete materials. Other Village funded projects will require testing as determined by the Village on-site representative.