How deep should the compacted covering layer be for pipes larger than 8 inches in diameter?

The recommended depth for the compacted covering layer for pipes larger than 8 inches in diameter is indeed 12-24 inches. This depth is essential for ensuring adequate support for the pipes, protecting them from external loads, and minimizing the risk of damage from ground movements or surface activities. Proper coverage helps to distribute the weight evenly along the pipe and reduces the likelihood of deformation.

This depth range is particularly important in water distribution systems, where the integrity of the pipes is critical to maintaining service and reducing leaks. Proper installation practices, including the thickness of the cover, ensure that the pipes are adequately protected while allowing for sufficient soil compaction and drainage, which helps in maintaining the longevity and functionality of the water distribution system.