GPRS Locates Utilities Prior to Trenching

Ground Penetrating Radar Systems of Virginia was utilized to detect underground utilities prior to trenching. A runway lighting installation company needed assistance in locating underground utilities before trenching for new conduits. GPRS Project Manager Josiah Donaldson verified the location, depth, and direction of several live conduits and abandoned lines. Prior to trenching, the contractor hand-dug an electric line marked by GPRS. It revealed trench tape and a live conduit underneath at precisely the depth annotated.

GPRS of Virginia performs GPR concrete and ground scanning to locate underground storage tanks, utilities, and subsurface anomalies. Whether you are locating utilities or satisfying the bank’s questions about any subsurface surprises, GPRS has your answers. For UST and utility locating projects in Richmond, Williamsburg, or Virginia Beach, VA contact Josiah Donaldson at or call 804-393-8744.

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Concrete GPR Scanning at Aventura, Florida

GPRS South Florida, recently completed scanning to locate post tension cables and conduits in a condo in Aventura, Florida. The homeowner was concerned about damaging post tension cables and conduits located in the floor slab. The ground penetrating radar technology is effective in locating post tension cables, reinforcing steel and conduits without delivering any radiation to the surrounding area. This is very important in high density residential locations where clearing the area for X-ray is not feasible.


GPRS is able to mark the location of the post tension cables and conduits directly on the surface using approved markings. After the service is completed, the homeowner can coordinate with construction personnel to begin work. By not damaging the post tension cables or conduits, the cost savings for the homeowner is substantial. It also increases the safety of the job site, keeping all workers and residents safe.

GPRS Aventura services all of South Florida including Boca Raton, Fort Lauderdale, West Palm Beach, Plantation, Hialeah, Coral Springs and Sunrise. Please contact Brad Goforth at 954-734-4091 or by email at

GPRS INC. Located Post-Tension Cables & Rebar in Downtown Charleston, SC

Prior to the installation of water pipes through the concrete slab floors, a local construction company contacted GPRS to scan the areas before coring took place in a hotel in downtown Charleston. Jeremy Martin – GPRS South Carolina mobilized to perform a non-hazardous, non-destructive method of concrete x-ray. Due to the portability of the GPR antenna, the scanning was performed quickly and accurately. Since the results were marked directly onto the surface, the customer was able to preserve the structures integrity and miss the reinforcing steel within the elevated concrete slab.

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Unlike x-ray/gamma ray, Ground Penetrating Radar is time efficient, non-hazardous and able to show real time results. The energy emitted is equivalent to 1% of a cell phone, therefore, the production of the construction site can continue without any radiation hazards. Our Mission is to provide solutions to the critical problems our customersface regarding the location of hidden elements in concrete and underground.

Learn how Ground Penetrating Radar Systems can assist your company with your next project throughout the South Carolina area. GPRS specializes in locating conduit, finding post tension cables/rebar, or searching for underground utilities. Please contact Jeremy Martin at 843.312.6662 or by email at

Ground Penetrating Radar Utilized to Locate Reinforcing Steel in CMU Elevator Shaft in Corvallis, OR


A construction company needed to confirm what reinforcment was present in an elevator shaft of a large apartment complex. There was concern that no reinfrocing steel was used to build the CMU wall. Prior to beginning the inspection process, the company contacted Ground Penetrating Radar Systems of Portland to scan the elevator shaft to locate any rebar present.

GPRS used a 1600 mhz antenna for the project that allowed for precise locating of the reinforcement. GPRS marked the reinforcing steel locations directly on the walls using black permanent marker, as well as providing a detailed written report of the findings. The company was then able to proceed with confidence in knowing that the elevator shaft was properly constructed and supported.

To learn more about the capabilities of GPRS in the Pacific Northwest, contact Project Manager, Eric Steyer, at 503.502.4781 or

GPRS Saves Time & Money by Locating Conduit in Concrete Slab

Ground Penetrating Radar Systems was called out by a general contractor to locate the conduits that were buried just underneath the concrete slab they were saw cutting. It was important that GPRS located the conduits because they have already hit multiple electrical lines and didn’t want to spend anymore more money on repairs or potentially get someone hurt. Ground Penetrating Radar Systems came out and successfully located all of the conduits inside the slab along with other utilities.

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Ground Penetrating Radar Systems used a GSSI 1600 MHz antenna for this application to locate the reinforcement and conduits. All findings were marked directly on the concrete at customers request for easy interpretation. GPR was ideal for this application due to the active work site in the surrounding areas. GPR emits no radiation and is safe for others to work in the area near the scan location.

For a similar scan on your job site in Utah, Idaho, or Montana please call Adam Kubicki at 801-599-2115 or at Sonar has also been used to locate underground utilities. X-ray can also be utilized in Provo, Ogden, Salt Lake City, Heber City, Tooele, and Park City.

Ground Penetrating Radar Locates PT Cables and Rebar in Downtown Austin Condo Prior to Ceiling Installation

Ground penetrating radar (GPR) is a great tool for locating all kinds of targets in your concrete slab. Before contractors drilled into this ceiling to set anchors for a track, they recommended having a GPR scan conducted. The result of the scan showed the locations of the reinforcing steel that would have been in their way had they drilled without a scan, which could have been dangerous.

Before you cut or drill in your elevated slab, find out what’s in your way by calling Corey Brecht for a GPR inspection at 512-417-6105 or email at

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GPR and Thermal Imaging – Radiant Floor Tubing

Troy Bartlett, Project Manager with GPRS used a thermal imaging equipment as well as Ground Penetrating Radar to locate in-floor radiant heat tubing and utilities for a home owner in Minnesota. The home owner had hired a contractor to level the concrete floor of their basement and wanted to make certain that before any holes were drilled the tubing and utilities were marked out.


For GPRS with Thermal Imaging applications in Minnesota, South Dakota and North Dakota, call 320.247.0451 or 507.884.0836, or email

Post Tension Cable Locating in Apartment Complex

GPRS was contacted by a general contractor in the Louisville area to locate post-tension cables in the slab. The concrete slab was to be sawed to access the clean out drains in the breezeways of the apartment complex. The drains had to be repaired and the contractor did not want to saw through one of the many post-tension cables in the slab.

The 1600 MHz antenna was used to locate the cables. Once the cable was located, it was marked on the slab with orange paint. The area was scanned 5 feet on each side of the cleanout drain. After marking the locations on the slab, the findings were communicated to the general contractor.

In the pictures below are two separate breezeways where the post tension cables were located prior to cleanout drain repairs.


To set up scanning for concrete or for locating utilities, contact Tyler Allen at (502) 528-8396 or