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Lead Story · OCT 13

How Potholing Contra Costa Improves Utility Detection Accuracy

Anyone who has spent time around excavation crews knows that utility maps, paint marks, and electronic sweeps are useful, but they are not the same as certainty. The ground has a way of humbling assumptions. Lines drift from as-built drawings. Depth changes after years of repaving and grading. Private utilities appear where nobody expected them. A signal that looked clean on the locator can become questionable the moment a trench bucket gets close. That gap between proba

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Anyone who has spent time around excavation crews knows that utility maps, paint marks, and electronic sweeps are useful, but they are not the same as certainty. The ground has a way of humbling assumptions. Lines drift from as-built drawings. Depth changes after years of repaving and grading. Private utilities appear where nobody expected them. A signal that looked clean on the locator can become questionable the moment a trench bucket gets close. That gap between proba

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