said by Time4aNAP 
:said by RJ44 :I see, that's great stuff. Somehow though, I expect it costs just a bit more than they're paying for locations today.
Even if ground-penetrating RADAR is too costly for now, an amped-up version of a plain ol' metal detector can be used. I say "amped-up" because the utilities should have a much better idea of what they're looking for. Therefore their equipment can be optimized to find the specific metals (Cu, Fe, Pb), and at greater depths.
Finding metals underground isn't a problem. Figuring out which of the underground cables is live, and which are abandoned is.
