Case Studies
Real Results. Real Solutions. Proven Performance Across the U.S.
At Williams Testing, we don’t just talk about solving pipe deflection—we prove it every day in the field. From municipal sewer systems to complex landfill infrastructure, our team has tackled some of the toughest rerounding challenges in the country.
This page showcases just a few of the real-world projects where The Original Williams℠ Rerounder™ System delivered fast, cost-effective, and permanent solutions. You’ll find detailed case studies, project photos, and videos that show exactly how our patented process works—and why it’s trusted nationwide.
See how we turn complex pipe problems into smart, lasting solutions.
Restoring Pipeline Integrity Without Excavation Kokosing Construction | I-271 Infrastructure Project Study
On a major I-271 project, Kokosing Construction faced a critical setback when underground pipe deflection exceeded allowable limits—bringing all surface work to a halt. With traditional excavation no longer a viable option, the team needed a faster, less disruptive solution to keep the project moving.
Sewer Project Lafayette, Ohio
In July of 1980, a 288 foot section of the newly constructed 8″ SDR-35 sewer main in Lafayette, OH failed to meet the 5% deflection test. The Williams crew Rerounded the section of pipe and it subsequently passed the mandrel test.
In a follow-up test two years later, project engineer Henry Hollinger, P. E. of Kohli & Kaliher Associates indicated that the section had passed the deflection test and that the “bedding and trench conditions had been stabilized by the Rerounding process and no further deflections should be expected.”
Later, as a longevity check, James Myers, P. E., also of Kohli & Kaliher Associates, reports that in February 2006, after 26 years, the section of pipe still passed a 4% deflection test.
Sewer Project Brentwood, California
In 1990, a 764′ section of 36″ HDPE Pipe failed to meet a deflection test. Television inspection showed several joint leaks prior to the Rerounding process. Following Rerounding, all sections of the pipeline passed the mandrel test using a 5 percent mandrel.
Follow up tests eight years later showed the rerounded sections of pipe appeared to have minimal deflection with no systematic deflection of the pipe joints.