CPM Pipelines

When evaluating rehabilitation options for pressure pipelines, one of the most common questions engineers face is: what matters more—modulus of elasticity or tensile strength? The answer depends entirely on the condition of the host pipe and the structural class of liner required. AWWA doesn’t classify liners by pressure rating. Instead, liners are designated according to the structural role they play in restoring or replacing the pipe wall: Class I – Non-structural:  Corrosion barrier only...

Monthly Update: September 20 – October 20, 2025 Presented by CPM Pipelines – Advancing Water Infrastructure Through Innovation Welcome back to The State of Infrastructure , our monthly report highlighting key force main and sewer main incidents from across the U.S. Between September 20 and October 20, several noteworthy events shed light on the shared challenges utilities face—aging assets, third-party construction damage, and the ever-rising cost of reactive repairs. While only a handful of...

Our team recently completed a 350-foot rehabilitation project on a 10-inch diameter ductile iron pipe using the H-Series   in Northern Arizona-showcasing both efficiency and precision in pipeline renewal. Before lining, we performed a thorough cleaning and CCTV inspection of the line. During this process, we identified a few obstructions and buildup, which our crew addressed to restore the pipe to optimal condition for lining. The team cleaned the line to the best achievable standard,...