> also given that 100+ years ago they weren't as diligent in mapping out things underground and they put sewage, electricity and internet in the same ground sin

> also given that 100+ years ago they weren't as diligent in mapping out things underground and they put sewage, electricity and internet in the same ground since then. I have some experience with the local utility companies in my city and it's shocking how often they don't know where their own lines are, even ones that are only a decade or two old. I can only imagine how lacking the knowledge is from 100+ year old infrastructure.