It's true that most cities don't have records of everything that has been buried beneath their streets, although I don't know whether the additional costs of fi

It's true that most cities don't have records of everything that has been buried beneath their streets, although I don't know whether the additional costs of finding the appropriate items and the occasional unintended damage to other bits of infrastructure outweigh the increased costs of having to deal with far longer pipes/cables/whatever. https://www.bloomberg.com/news/features/2017-08-10/nobody-knows-what-lies-beneath-new-york-city https://www.bloomberg.com/news/features/2017-08-10/nobody-kn...