What causes the majority of underground pipe failures?

The primary cause of underground pipe failures often pertains to issues related to improper backfill and lack of proper bedding. When pipes are installed, they require adequate support and protection to withstand the weight of the soil above and any external loads. If the backfill material is not placed correctly or lacks sufficient density, it can lead to settling or shifting, which places stress on the pipe and may result in cracks or breaks over time.

Proper bedding ensures that the pipe is evenly supported along its length, which is essential for maintaining its integrity under pressure and preventing failures. On the other hand, poor backfill techniques can lead to voids around the pipe, reducing its ability to withstand external forces and increasing the likelihood of failure.

While other factors, such as corrosion or using substandard materials, can indeed contribute to pipe failures, improper backfill and inadequate bedding are particularly critical because they directly relate to the structural support required to keep the pipes functional over their intended lifespan. If the installation process is compromised, it can lead to problems that outweigh other failure causes.