INTERRA provides geotechnical, environmental, and material testing and inspection services delivered in support of transportation, buildings, and other civil infrastructure projects. An industry leading provider, INTERRA delivers support of construction and development in a wide variety of end-user markets throughout the United States.

State highway departments, federal agencies, FORTUNE® 500 companies, municipalities, top-tier healthcare corporations, preeminent construction firms, commercial property owners – to name a few – are all long-term INTERRA clients; many of which retained the firm when it opened its doors in 1996 as Great Lakes Soil & Environmental Consultants, Inc.

We believe the number and duration of our long-term clients is indicative of our consistent ability to deliver:
•cost-effective, common-sense solutions to challenging engineering problems,
•value-added inspection services to achieve project and owner objectives, and
•reliable material testing data when promised to facilitate project decisions and progress.

Our clients know that INTERRA is fully committed to complete client satisfaction and that we have the  personnel, expertise, experience, systems, technology, competitive pricing, and drive to deliver just that…complete satisfaction for every client on every project.

INTERRA, Inc.

This office likely supports field operations, providing resources and coordination for technical staff in the area.

INTERRA, Inc.

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INTERRA, Inc.

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