What is the life expectancy of ductile iron pipe?

The life expectancy of ductile iron pipe is generally recognized as being around 100 years. This durability is due to the pipe's material properties, combined with appropriate installation practices and maintenance. Ductile iron is engineered to withstand high pressures and has resistance to many environmental factors, such as corrosion, which contributes to its long lifespan.

While the pipe can indeed last longer under optimal conditions, 100 years is a widely accepted benchmark since it is based on historical performance data, testing, and engineering assessments that take into account the various factors affecting pipe longevity, including soil conditions, water chemistry, and the potential for mechanical strain.

Recognizing this life expectancy is crucial for public works managers in planning for infrastructure maintenance, budgets, and future replacements, ensuring that communities have reliable water delivery systems for generations. In contrast, the other choices on the list represent estimates that may reflect overly optimistic views or are not typically cited in industry standards.