ECN Forum Forums Photo Discussion Forums Photos for General Discussion EMT- Burial Depth Necessary Near Sidewalk?

PVC
Rigid Nonmetallic Conduit (RNC)
Type UF cable (except in direct contact with poured concrete 340.12(8))
Rigid Metal Conduit (RMC)
Intermediate Metal Conduit (IMC)

can be used underground, plus anything else I left out that someone wants to chime in.