Quality, Service & Commitment


  • 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


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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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Tamiami Trail Project-Florida: “Mr. Vyas and the whole Interra team were instrumental in contributing to the high quality work provided to the USACE.  Interra’s management went above and beyond in meeting our needs.” Larry Corn, Area Quality Manager,  Kiewit Infrastructure …

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Little Village High School, Chicago, IL

INTERRA Services

During the demolition phase, INTERRA provided field compaction testing of the backfill material. In addition, the exposed subgrade after removal of the foundations was approved, prior to placement of the fill material. During the construction of the school, INTERRA provided bearing pressure tests for the foundations, field soil compaction testing for backfill material in the foundations and floor areas. Concrete testing was performed in the field including re-bar inspection during the placement of the concrete. Mortar and Grout sampling was also performed. Random sampling and testing of the CMU blocks and bricks was also performed. Structural steel testing consisted of weld inspections, shear stud testing, magnetic particle testing and bolted connection testing. Continuos roof inspection services were provided through our subconsultant. Asphalt testing services were provided for the parking areas.


Project Summary

The campus is comprised of four autonomous small schools: Multicultural Arts H.S., World Language H.S., Social Justice H.S., and Infinity: Math, Science, and Technology High School. The new school consisted of over 250,000 square foot area with basketball courts, swimming pools and auditorium.