Comment by jasonkester
15 days ago
Probably should have mentioned that it's not a driveway in the US sense, where it's a strip of pavement with dirt on either side. More like a courtyard that butts up against the main house and guesthouse. There's no digging under it from the side.
Incidentally, what does "DB" mean in the above?
I would guess directional boring. They can start a bore and sort of drive it around corners.
20 years ago when they were putting fiber in all over the place here, they would bore around a whole cul-de-sac in one go. In several cases breaking every water service line on their way through.
https://en.wikipedia.org/wiki/Directional_boring
It probably means "Direct Buried" or "Direct Burial,, see also https://en.wikipedia.org/wiki/Direct-buried_cable