What is subsurface utility engineering?

Subsurface Utility Engineering (SUE) is a specialized branch of civil engineering focused on the identification, mapping, and management of underground utilities such as water, gas, electric, and telecommunications. SUE professionals use a combination of surveying, geophysical methods, and records research to locate and document these utilities before construction or excavation projects begin. This process helps prevent costly damages, improves safety, and ensures more efficient project planning by reducing the risk of unexpected utility conflicts. SUE is increasingly important for urban development and infrastructure maintenance.