What is the required depth for burying water mains to protect against frost?

The required depth for burying water mains to protect against frost is 30 inches. This depth is important because it helps prevent the water in the pipes from freezing during colder months. When water freezes, it expands, which can lead to pipes breaking or bursting, causing damage that can be costly to repair and potentially disrupting water service.

In many areas, local building codes and regulations establish this depth based on historical data regarding frost depth in the region. While frost depth can vary depending on geographical location and specific weather patterns, a standard depth of 30 inches is commonly recommended to provide adequate protection against freezing temperatures. This ensures that the water mains remain safe and functioning throughout the winter season.