Subsurface Utility Mapping

Intertek-PSI is at the forefront of subsurface utility management and geophysical exploration, offering some of the industry’s most advanced and comprehensive services. Our team of highly skilled professionals, comprising geotechnical engineers, geologists, geophysicists, and surveyors, collaborates closely with stakeholders across diverse sectors to prioritize project safety, mitigate risks, and optimize cost efficiencies.

Intertek's Subsurface Utility Engineering (SUE) services adhere to a meticulous 4-Quality Level Iterative Process outlined in ASCE 38-02, ensuring precision and reliability at every stage. From Records Review to Validation/Hydrovac Excavation, our methodical approach guarantees thorough subsurface utility management, minimizing uncertainties and maximizing control.

We deliver unparalleled insights into subsurface environments, empowering clients with a thorough understanding of their underground assets. Our advanced geophysical methods go beyond Ground Penetrating Radar (GPR) surveys, utilizing a wide range of cutting-edge instruments such as Ultrasonic, Electromagnetic, and Acoustic equipment.

Our equipment capabilities include:

• GPR with multiple frequencies for high-resolution, large-area surveys, capable of reaching depths of up to 18 feet in certain soil types.
• RD 8100 system capable of locating a variety of utilities, offering both passive and active locating with integrated GPS options for pinpoint accuracy.
• SPAR 300 Electromagnetics system allows for accurate vertical location and is less sensitive to soil changes.
• Acoustic Pipe Locator ideal for plastic pipes, clay concrete, and fiber optic lines.

The deliverables we provide are tailored to meet the specific needs of each project, ranging from field markings with paint or flags to comprehensive 2D utility plans or alignment drawings with profiles. We also have the capability to deliver accurate 3D models with depth information using AutoCAD Civil 3D and BIM plugins which transform raw data into actionable insights. And our custom-built Utility Data Management Repository, a proprietary software solution, ensures that all subsurface information is meticulously organized and easily accessible.

Our underground utility mapping and advanced geophysical services lead to significant reductions in construction time, costs, and labor, while minimizing risks, change orders, and delays. With Intertek's expertise by your side, you can navigate the complexities below ground with confidence and clarity.

Contact us today to learn how we can support your next project.