Ground Penetrating Radar Systems Inc.

GPR Scanning SOG Prior to Saw Cutting New Utility Trenches - Maple Plain, MN

If it were up to you to decide, would you choose to have a concrete slab scanned with GPR before saw cutting for new utility trenches, or core drilling for new floor boxes? Would you assume that you would not hit of any of the electrical, data and utility lines during the process? At Ground Penetrating Radar Systems, we see well intentioned decisions like these cost many contractors tens of thousands of dollars in unexpected damages, delays, and repair costs.

You work hard to treat people right and to go that extra mile, even when it means you might have to put forth more effort than the competitor, who is taking shortcuts when their client’s back is turned. Without scanning first, there really is no sure way to know what lies in a concrete slab, or how deep the utilities are placed. Perhaps the space has been remodeled previously. Can you trust the information you’ve received regarding another contractors work?

Scan that slab before you cut or core. Get as clear of a picture as you can of what’s below the surface. Don’t take chances. If you are a property manager, you should require that all of your bids for upcoming projects include scanning any concrete surfaces before drilling or saw cutting takes place. Protect yourself, the structural integrity of the property, and those who use your space from needless damages, and expenses by utilizing the technology that is available through Ground Penetrating Radar Systems. It’s what we do.

By utilizing GPR technology, combined with our experienced technicians, with Ground Penetrating Radar Systems, you can be rest assured that did all that you could do to limit the liability, and uncertainty within the scope of your project. GPR technology, (in the hands of a skilled operator), can provide information such as:

  1. The thickness of a slab
  2. If reinforcing is layered with wire mesh and/or rebar within a concrete slab
  3. If voids are present
  4. The location of conduits that are in or beneath the immediate surface of the concrete

Of course, this information can help you to make educated determinations as to where to place saw cut locations, and what methods might work better than others to meet your desired objectives.

GPR Scan Prior to Saw Cutting Utility Trenches - Maple Plain, MN  Scan Floor Before Saw Cutting
The images above show a floor that was scanned by GPRS at project that was located in Maple Plain, MN.

GPRS was called by an electrical contractor to scan a floor at a renovation project in Maple Plain, MN. The slab needed to be scanned, and all of the conduits needed to be mapped out, as the project required sections of the floor to be cut. Project Manager, Troy Bartlett used GPR and Radio Detection to locate live power, and other trenches (with multiple conduits) crossing the proposed locations of the saw cuts. After the scan was completed, Troy was able to inform the client about the depths and locations of the conduits. Many of the conduits were either in, or right at the bottom of the concrete surface, and many of these conduits carried 480 volt electrical lines. Thanks to our accurate and thorough scanning work, the contractor was able to avoid cutting through several vital utility lines.

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

Ground Radar Scanning
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