A Utility Locator should be used to locate utilities before excavation begins. Whether it is on a right-of-way, private property or on a construction project, it is important to know what lies beneath the surface. There are many conditions that make it difficult to determine what has gone on in the past ...drawings and as-builts get lost, are not updated as installation conditions require repositioning of utilities or services, ...utilities and services are installed without tracer wires or trace mechanisms. All of this can make it difficult to know what lies ahead of the excavation.

Why We Use GPR
It is a very beneficial tool to assist to locate utilities in the conditions stated above. With its Real-Time capability it is possible for our GPR Survey Technicians to locate utilities and mark utilities and services within minutes of arriving at the site. Using GPR our technician can mark-out metallic, concrete, plastic conduits and other utilities and services indicating position and depth to the object and map utilities on a site plan.

Our Utility Locating Methods
Global GPR Survey Technicians often collect data for the utility locating survey area in a grid format. A GPR survey grid means that more area is covered and unknown objects can be discovered and ensure full coverage of the area. Traditional (EM) electro magnetic locate equipment requires the transmitting antenna be inline with the utility, if you are using induction mode, or they may be missed. GPR does not have this requirement so utilities running in an obscure direction can be identified. Once we have collected the GPR data we can produce 3D mapped reports with interpreted locations and depths of the anomalies located plotted to scale. This can be beneficial in congested areas for identifying utilities and also for pre-engineering purposes. It's always a good idea to contact your local utility companies or "One Call" service first to have them identify where the main utility lines are located before we do a comprehensive GPR utility locating survey by one of our trained utility locators.

For more information about Private Utility Locating Services and how "One Call" Public Utility Locator Services work go to our UTILITY LOCATING FAQ page.

Global GPR Utility Locating Services for Experienced Utility Locator using Ground Penetrating Radar (GPR) to Locate Utilities Nationally