Check with your city and your local electric service provider for any restrictions prior to running direct burial electrical cable. Each municipality has specific rules that designate the exact depth you must bury your electrical cable.
Depths can range from 18 inches to 24 inches.
Verify the locations of any underground sewage lines, water lines, cable lines or any pre-existing electrical lines prior to running your direct burial electrical cable.
Dig your trench. Use a drain spade or trenching shovel to dig to the depth designated by your municipality or local electrical company.
Use a tape measure and periodically check for the correct depth.
Lay your direct burial cable at the bottom of your trench and cover it with dirt.