Quality, Service & Commitment

INTERRA NEWS

  • 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

  • 08 Dec 2017

    INTERRA Honored With 2017 IRTBA Green Industry Achievement Award For Green Initiatives

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Certified

Laboratory Certifications

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

 

Firm Certifications

  • DBE with IDOT
  • MBE with City of Chicago

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Testimonials

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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K.I. Sawyer Air Force Base – Landfill 4, Gwinn, Michigan

INTERRA Services

Provided Construction Quality Assurance (CQA) Services on the installation of  approximately 2,000,000 sq. ft. of flexible membrane liner, gas vent layer, drainage layer for the final cap of  Landfill 4 at K.I. Sawyer AFB.  The cap construction was performed per Michigan Department of Environmental Quality (MDEQ) regulations. The work involved attending pre-construction meeting,  inventory of FML and on-site borrow soil at the site, density testing for gas vent layer, observation and documentation of the placement of drainage layer, material delivery, unloading, on-site transport and storage. Also monitored and documented activities such as trial seaming, panel deployment, and joining and seaming, non-destructive and destructive seam testing and repair operations.  Provided sampling for destructive seam testing and performed conformance sampling, measurement of installed quantities and visual inspection by walkover. Provided preparation of panel layout drawing, daily reports for Flexible Membrane Liner (FML) and the soils placed.