Hello All, I'm planning on installing a new 200 Amp service to my house in the near future, unfutunately I need to add a new concrete walk on the service side of the house before the service, If I drive down 2 rods 6-7 ft apart, #4 between them and to the panel ,can I cover them with the walk?(no visual inspection possible). leaving them above would become a tripping hazard. Any Ideas?