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

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…

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I-94 Mitchell Interchange, Milwaukee, WI

INTERRA Services

Materials Coordination

Concrete Plant and Field   Inspections

Concrete Strength Testing

Concrete Maturity Testing

Aggregate Testing

Project Summary

INTERRA provided construction materials inspection, testing and materials QMP services for reconstruction of the Mitchell Interchange project in Milwaukee Area, Wisconsin. The project will improve safety, help ease congestion and modernize this important 35-mile transportation artery, including: constructing an additional lane in each direction for a total of eight lanes, replacing deteriorating pavement and structures with new designs, moving ramp exits to the right side of the freeway, providing aesthetic treatments for those who live adjacent to the freeway.