GPS/GIS utility mapping is the process of locating, documenting, and digitally mapping underground and above-ground utility infrastructure using Global Positioning System (GPS) and Geographic Information System (GIS) technology. It can help identify and record water lines, gas lines, electrical cables, sewer systems, telecommunications lines, drainage systems, and other utility assets. By creating accurate digital records of utility locations, GPS/GIS mapping gives project teams a clearer understanding of what exists across a property or construction site.

During the mapping process, technicians collect precise field information such as GPS coordinates, utility locations, alignment, depth data, and asset characteristics where available. This information is organized into digital maps that can be reviewed and managed more efficiently than traditional paper records. GPS and GIS data can also help engineers, contractors, developers, and property owners coordinate excavation, design, construction, and infrastructure planning while maintaining a more organized record of existing utilities.

Professional GPS/GIS utility mapping can be valuable for both small property projects and large infrastructure developments. Accurate utility information helps teams plan work more effectively, avoid unnecessary excavation, and reduce the possibility of utility strikes, project delays, unexpected underground conditions, and costly rework. With reliable digital mapping available before and during construction, project teams can make better-informed decisions and work with greater confidence around existing infrastructure.