GPRS Used to Locate Utilities at 2 Schools in Nashville

Ground Penetrating Radar Systems’ Nashville, TN office was recently utilized on two separate projects to locate underground utilities at local schools.  McMurray Middle school is planning renovations and additions across the property. The environmental company hired to oversee the project hired GPRS to scan for and locate utilities not only in the areas that were slated for soil borings, but also for expansion areas.  Over the course of 2 days, GPRS scanned several acres on the school property and were able to clear the soil boring locations but also to identify several of the utilities in question, including primary water, power and gas services, secondary power, sanitary and data/comm lines to and from multiple buildings.  Working directly with the environmental company, GPRS was able to scan alternate areas when the soil boring crew hit refusal on bedrock. All findings were marked with paint/flags so they could easily be identified.

Electric, Data and Sanitary lines at McMurray on left and Gas at Marvin Wright on right.


GPRS also recently worked with a local building contractor to locate and mark the underground gas line from the tank into Marvin Wright Elementary.  Drawings showed two gas entry points on two opposite wings of the school.  GPRS was able to locate the line from the tank to one entrance via the use of active mode electromagnetic induction.  The second line had no tracer wire but Ground Penetrating Radar technology was able to accurately locate the 2” plastic line at a depth of approximately 3’-4’, thus preserving the line from destruction by heavy equipment.

Radar technology used by GPRS

GPRS uses non-destructive testing equipment to locate utilities, piping, power-lines, underground storage tanks, and grave sites that are unable to be seen. Using GPRS is a safe, cost effective way to make sure you can safely drill or dig and not destroy any underground utilities or determine if USTs exist on a property.Other services we offer are: Post-Tension Cable Location, Conduit Mapping, Rebar Mapping, Void Location and more. GPRS is a nationwide company with local project managers in over 50 cities.  If GPR services are needed in Central Tennessee, contact Casey Barefield at 615.418.4023 or  Also visit for a directory, to view important information about our company, or request more information about how we can serve you on your project.

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