My expert blog 4506

Potholing Contra Costa for Precise Underground Utility Exposure

By @knoxnvem572

Anyone who has worked around active underground infrastructure in Contra Costa knows the same truth: marks on the surface are only the start. Paint and flags tell you where to be careful. They do not tell you exactly what is in the ground, how deep it sits, whether it drifts from the expected alignment, or what happened after twenty years of repairs, tie-ins, paving, and undocumented field changes. When excavation gets close to live lines, assumptions become expensive.