Potholing / Daylighting
Potholing techniques, also known as daylighting, are vital during the construction phase of a project that involves the drilling of exploratory holes exposing the location of the underground utilities.
Often settlement or ground movement over time tends to shift the location of utilities. If ground movement is a factor, other methods of existing utility location, such as charts, maps, and as-built drawings, do not provide an accurate reflection of their position.
This process confirms the location of utility lines and any other existing structures within the defined construction area that could be damaged and to evaluate any damage that requires remedial work or replacement in the maintenance phase of a project.
Exposing utilities using potholing techniques eliminates the risks associated with outdated reports so the project can move forward with confidence.