I suppose one doesn't get to dig holes because of one's brain power.
Where were the supervisors ?
This is what happens when services are accessed randomly on multiple occasions by the various utilities, digging up and back-filling over and over, (causing inconvenience to everybody, and making a horrible mess of roads and pavements) instead of coordinating the works... plus more are using mini-diggers, rather than (more sensitive) hand tools.
Some local authorities
insist upon this now, fortunately.