Utility Mapping

Utility mapping combines multiple data sources and methods to build a comprehensive picture of the subsurface environment. Desktop research reviews existing records, as-built drawings, and GIS databases. Field surveys identify visible surface features such as manholes, valve boxes, and markers. Geophysical methods like ground-penetrating radar and electromagnetic locating detect subsurface anomalies. Physical verification through hydrovac potholing confirms the exact position and characteristics of buried utilities.

The quality and completeness of utility mapping directly affects project outcomes. Accurate maps prevent utility strikes during construction, reduce design conflicts, minimize change orders, and enable efficient maintenance and emergency response. Conversely, inaccurate or incomplete utility maps lead to construction delays, utility damage, costly redesigns, and safety incidents.

Modern utility mapping increasingly integrates field data into GIS platforms that provide digital access to utility information. Some municipalities and utility operators maintain comprehensive GIS databases that include three-dimensional utility positions verified through SUE investigations. Hydrovac potholing data is a critical input to these databases, providing the Quality Level A verification that anchors the mapping accuracy.