What is the minimum depth cover requirement for underground piping installed unless under a road?

The minimum depth cover requirement for underground piping, which is specified in various safety regulations and guidelines, is typically set at 18 inches unless the piping is installed under a road. This requirement is in place to ensure that the piping is adequately protected from accidental damage due to surface activities, such as construction, landscaping, or natural forces such as erosion.

The specification of 18 inches helps to provide a balance between practical installation practices and safety concerns, ensuring the piping remains protected while not being overly difficult to install or maintain. When installed at this depth, there is a significant reduction in the risk of damage caused by surface loads or disturbances from above, while also facilitating easier access for repairs or inspections if necessary.

For instances where the piping is located underneath a road, different regulations may apply that consider factors like traffic load and road construction materials. In those cases, the depth requirement may be greater than 18 inches to accommodate the additional stresses that the piping would be subjected to.