TTL’s Widespread Involvement in I-75 Reconstruction Project: 2016 – current

Over the past 3 years, TTL has been providing Construction Materials Testing and engineering services for a variety of clients and locations along Interstate 75 in Michigan and Ohio.  Services provided include:

  • Concrete mix designs
  • Concrete testing including air content, slump, unit weight, and density
  • Aggregate sampling and gradation testing including moisture content and sieve analysis
  • Independent Quality Engineer (IQE) Services

The map below summarizes our involvement with this large-scale project.

For your next infrastructure project, please contact:

Curtis Roupe, P.E.

Vice President

Ohio Testing Division


Jeff Elliott, P.E.

Vice President

Michigan Operations