There were three fiber optic lines across the Mt. Hood NF when I did road maintenance and management work there. The heavy duty one carried major traffic from Portland to the central Oregon area around Bend...a big high tech zone. If I had ditch work that were to sever that line, word was the Forest Service would be liable for costs of $50,000 PER HOUR until it was back on line...on top of the repairs, which could have been in excess of a quarter of a million dollars, we were warned.
I ALWAYS called for a locate service, no matter how miniscule the work on those many miles of roadway might have been.