What are the minimum requirements for drainage pipe burial depth?

The minimum requirements for drainage pipe burial depth are specified to prevent damage to the pipes from freezing, shifting soil, or surface activities. The correct answer indicates that the minimum burial depth is at least 12 inches below ground level. This allows for adequate protection against freeze-thaw cycles that could compromise the integrity of the drainage system, especially in regions that experience winter temperatures.

This depth also helps to ensure that the drainage pipes are below the frost line, which is critical in maintaining their functionality throughout the year. By adhering to this requirement, you minimize the risk of the pipes being disturbed or damaged by surface activities, such as vehicular traffic or landscaping work, which could affect their performance and longevity.