When potholing, utility crews use a conveyable vacuum excavator. First, exam holes, normally measuring 6 to twelve inches deep, are created along the road exactly where they plan to dig or start off building. They excavate soil with superior-pace suction straight down until finally the utility line is partly uncovered. https://objects-us-east-1.dream.io/blissdrive/Bess-Utility-Solutions-Hayward/Potholing-Utilities.html