InfraShield® Webinar

Designing for Differential Settlement: How to Reduce Risk and Lower Costs with Geohazard Resistant Steel Pipe

Tuesday, April 15, 2025
12:00 P.M. – 1:00 P.M CT

Buried water transmission pipelines connected to rigid structures or existing pipelines often undergo differential settlement or subsidence. This movement can cause significant stress and strain in the pipe wall, affecting the structural integrity of the pipeline and ultimately leading to leaks, or worse, critical failure.

The InfraShield® Joint System by Northwest Pipe Company is an innovative, fully welded Geohazard Resistant Steel Pipe (GRSP) technology designed to safeguard steel pipelines in differential settlement areas without the need for gasketed joints. Installation requires no specialized tools, training, or supervision, resulting in reduced risk and lower installed costs for project stakeholders. This webinar introduces the strain-based design concept behind InfraShield,® which builds on the proven performance of C200 steel pipe with a bell and spigot lap-welded joint, adding a small projection on the spigot end that predictably absorbs deformation and protects the joint.

Hear from the engineers who developed the technology as they walk through the rigorous full-scale testing and finite element analysis that has verified the system’s performance, as well as a case study on its application in a major water transmission project in Houston. Then, learn how this GRSP solution can be easily specified for differential settlement areas using a simple design table and diagram.

Earn up to 1 PDH / CEU credit for attending (check with your local licensing agency for eligibility. A certificate of completion will be provided after the webinar).

Topics Covered:

• Overview of the InfraShield® GRSP Design Concept
• Testing and FEA Verification
• GRSP Installation – Reducing Risk and Costs
• Case Study: 84” and 96” Steel Water Pipeline in Houston, TX
• Designing for Differential Settlement using the InfraShield® Design Table
• Q&A