What is the minimum burial depth for gas lines in areas where external forces could damage the pipe?

The minimum burial depth for gas lines in areas where external forces could damage the pipe is 18 inches. This depth is established to protect the integrity of the gas line from potential damage caused by surface activities, including foot traffic, vehicle loads, and other external pressures that could compress or puncture the pipe.

The 18-inch requirement serves as a standard to ensure that the line is adequately shielded from everyday risks, helping to prevent leaks or failures that could pose safety hazards. In addition, this depth allows for installation practices that promote safety and compliance with relevant codes and regulations governing gas line installations.

Underground lines should always be buried deep enough to withstand environmental conditions and external forces, which is why this 18-inch measure is a critical guideline for technicians working with gas utility lines.