Power lines are typically buried underground at varying depths depending on the type and voltage of the line, as well as local regulations. Common depths are:
- Cable lines such as phone and pathway lighting wires are buried about 12 inches (1 foot) or less.
- Standard electric lines and gas lines are typically buried around 24 inches (2 feet).
- High voltage electric lines and water lines are often buried deeper, about 36 inches (3 feet) or more.
- In some cases, conduit for electrical wiring is buried 24 inches deep, but it can be as shallow as 18 inches under concrete or in some lower voltage or specific conditions.
- Local codes and climate conditions can influence the required burial depth, with colder regions sometimes requiring deeper burial to avoid frost damage.
It is important to always contact local utility locating services (e.g., calling 811 in the USA) before digging to avoid hitting underground lines, as depths can vary significantly.
