300.5: Minimum Burial Depth

Source: NEC 2020

Minimum cover requirements (inches) for direct burial, conduit, and other wiring methods.

Location	Direct Burial (in)	Rigid Metal (in)	PVC/Non-Metallic (in)
General (Not under slabs)	24	6	18
Under residential driveways	18	18	18
Under individual residential garage	18	18	18
Under public streets/alleys	24	24	24
In airport / heavy traffic areas	24	24	24

Professional Usage Disclaimer

This data is provided for informational purposes only. Always verify with the latest edition of the National Electrical Code (NFPA 70) and consult with a licensed electrical professional or AHJ (Authority Having Jurisdiction) before performing any electrical work. Zing² is a reference tool, not a substitute for qualified engineering.