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In the early 1960s, pioneering researchers at Case Institute of Technology in Cleveland, OH were developing new methods of non destructive pile testing to support the industry trend toward more efficient high capacity deep foundations. Those new methods, and associated hardware and software solutions, included the Case Method of Pile Testing, the Pile Driving Analyzer, and the Wave Equation Analysis of Piles computer program. Being most knowledgeable about the capabilities of those new dynamic foundation testing approaches, the research team was frequently asked to provide consulting services to the deep foundations industry. Thus, the research team formed a consulting firm known today as GRL Engineers, Inc., or simply GRL. Dr. Frank Rausche and Garland E. Likins

Dr. Frank Rausche and Garland E. Likins, circa 1970's

Dynamic load testing with an APPLE system. Detroit, Michigan. 2003.

GRL Engineers services range from small or specialized testing jobs (such as investigating unknown foundations) to large-scale projects requiring the monitoring and analysis of hundreds of test piles. GRL's seven offices allow it to maintain a quick, cost-effective responsiveness to client needs throughout the United States, the Caribbean, Central America and Northern South America. GRL also performs offshore foundation testing work and other complex jobs in countries across the globe.

GRL today is led by Pat Hannigan, President, and Mohamad Hussein, Chairman of the Board. They are joined by highly accomplished and experienced engineers, among them Scott Webster, Michael Morgano, Camilo Alvarez and Brent Robinson.

Learn more about GRL

"We wish to extend to you our utmost appreciation for another job well done. Your prompt service, reporting and professionalism are unparalleled (...). We look forward to working with you again in the near future."

- James Pelham, Project Manager, Misener Marine Construction, Inc.

Most GRL Engineers have achieved Advanced Level or higher on both the PDCA/PDI Dynamic Measurement and Analysis Proficiency Test and on the Foundation QA (FQA) High Strain Dynamic Pile Testing Examination.