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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Great Lakes Naval Base, Great Lakes, IL: “They reacted extremely well to ever changing schedule demands and testing needs on short notice.” Joseph Albrecht, QC Manager, Blinderman Construction Company

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Recruitment Center, Great Lakes Naval Facility – Department of Navy

INTERRA Services

Bearing pressure tests for the foundations

Field soil compaction testing for backfill material in the foundations and floor areas

Concrete field testing including re-bar inspection during the placement of the concrete

Mortar and Grout sampling and testing

Random sampling and testing of the CMU blocks and bricks

Structural steel testing consisting of weld inspections, shear stud testing, magnetic  particle testing and bolted connection testing

Asphalt testing services for the parking areas


Project Background

The Camp Porter project completes the Navy’s $787-million Great Lakes recapitalization Program of the Recruit Training Command. The project includes the design and construction of three recruit barracks; a visitor center; a simulated arms marksmanship trainer; gate entry facilities; an 850-car parking structure; demolition of 14 buildings; and major infrastructure work. Great Lakes Recruit Training Center is the site of basic training for every enlisted recruit in the U.S. Navy. One thousand recruits graduate from the program every week. The Recruit Barracks, Recruit Training Command project, located at the United States Naval Training Center, Great Lakes Illinois is a design/build contract to design and construct a prototypical barracks facility to provide training, housing and galley facilities for 1,056 Navy recruits. The Clark led design/build team was selected after a rigorous national competition. Upon award Clark worked closely with the Navy to refine the proposed design to accommodate the unique needs of the client. The 345,000 SF two building complex is constructed of cast-in-place concrete with an attractive masonry and stone façade consistent with the historic architectural character of the base. This project has received a variety of commendations and awards for design and construction. It will serve as the model design for an additional seven barracks facilities planned as a part of the $300 Million Great Lakes Re-capitalization program