ground penetrating radar

About GPR Data Inc.

GPR Data, Inc. established in 1998, is a company using Ground Penetrating Radar for non destructive investigation of earth and concrete. Based in Eugene, Oregon GPR Data Inc. has a servicing area which covers the globe. GPR Data has worked in countries and conditions all over the world. We strive to provide the most innovative solutions to your problems. GPR Data uses the latest radar technology available and each member of our team is certified in Radar Engineering and Evaluation.

What is in and beneath soil and concrete is our business. Investigations in sub-surface range from 1 inch to 300 feet depending on local conditions. From air voids and delaminations in concrete to bedrock and soil, to gem bearing vugs in pegmatic flows, we can find what you’re looking for.

Committed to customer service, we are building relationships with our clients through our technology, unmatched experience, and accurate solutions.

About the Industry Experts in
Ground Penetrating Radar Services

Ground penetrating radar (GPR) technology is used to image anything in concrete or soil. It is commonly employed before digging, cutting, or coring. GPR is a geophysical method, very similar to concrete xray imaging. Electromagnetic waves are pulsed into the concrete or earth and mapped as they refract back to the surface. GPR methods include REALTIME 2D LINE SCANNING or 3D GRID SCANNING.

Every GPR system contains one or multiple antennas. These antennas transmit and receive radio frequency waves. Upon transmission, these radio waves penetrate the surface that the user intends to investigate if and when the antenna is touching or in close proximity to the surface. While much of the signal dissipates, a percentage of the signal comes back to be received by the antenna. This return signal brings data that can be recorded, interpreted and manipulated. The data shows up on a control unit as images that give the operator the ability to see the size of objects and the depths at which they are located.

GPR has the same basic principles as a metal detector. A metal detector sends energy into the earth in up to 17 frequencies. When that energy meets a metallic object, it is translated into a recognizable tone. The GPR sends out millions of frequencies that return to the antenna and translate material composition definition in the subsurface. Radar is sensitive to changes in material composition. Detecting these changes requires movement. In the case of air traffic control radar, the targets are moving, so a stationary transmitter works. In the case of GPR, we are looking for stationary targets, so it is necessary to move the radar to detect the target.

Realtime 2D Line Scanning

Marking post-tension cables and determining safe core drilling locations in reinforced concrete; locating utilities like water or gas mains and service drops for safe excavation and directional boring; quickly clearing anchor embeds for seismic reinforcement and equipment installation. REALTIME 2D LINE SCANNING presents some limitations and isn’t appropriate for all work sites.

3D Grid Scanning

3D GRID SCANNING is a technique used to capture the dimensions and shape of embedded objects using our engineered patented in-house data collection processes. The result is a high-resolution 3D image model of the object which can be saved, edited, mapped, printed, or tailored to meet the clients output expectations.

What We Do

GPR Data Inc. engineers are the industry experts in 2D and 3D ground penetrating radar concrete or earth scanning. Technical experience and customer relationships are the foundation of our corporation. Our non-destructive testing and inspection services are not limited to GPR. GPR Data Inc. offers a wide range of professional services to support our ground penetrating radar service applications. Our staff is not limited geographically. With offices throughout the United States supporting our clients we have worked in all states of the union and most countries around the world.

Technical Experience

  • Licensed & certified professionally trained staff.
  • Over 30+ years of ground penetrating radar data collection and data post processing experience.
  • State of the art ground penetrating radar technologies.

Client Relationships

  • Rapid field response times.
  • Quick complex information turn around and output reporting.
  • Dedicated support to project goals.
  • Loyalty

Our Team Leaders

michael edwardsMichael Edwards

Michael “Big Mike” Edwards, with a background in business and heavy construction, is shown here conducting a chloride corrosion deterioration study of the Burnside Bridge, in Portland, OR.

matthew edwardsMatthew Edwards

Matthew “Data Man” Edwards, with a background in geophysics, is shown here conducting a structural evaluation of a concrete dam abutment in Brownsville, OR.

casey coyle

Casey Coyle

Field Engineer | GPR Data Eugene

Bringing all the experience needed in geology, Casey is our in house geologist. When we are looking for soul permativity or needing to model antenna penetration feasibility for certain projects. Casey is our go to guy! As an expert in GPR concrete imaging, Casey offers professionalism and value to all our projects.

casey coyle

Daniel Hardy

Field Engineer | GPR Data Los Angles

With a background in geophysics Daniel can post process, model, duplicate, analyze, and georeferenced any site in the world. Being trained by some of the GPR Data post processing pioneers, he is an industry expert in GPR Data collection.

casey coyle

Ian McMullen

Field Engineer | GPR Data Portland

Construction materials and laboratory testing are Ian’s specialties. With 10 plus years experience in nondestructive testing and ground penetrating radar there is hardly a case scenario he hasn’t seen. Ian’s work ethic is second to none! If compressive strength of concrete or corrosion on banded post tension cables is the information you are after Ian delivers every time!

casey coyle

Billy Malone

Field Engineer | GPR Data Las Vegas

Mechanical and Geotechnical Engineering are his trades, pulling off the impossible is his specialty.

casey coyle

Nathan Rasnick

General Manager | GPR Data Las Vegas

With 15 years of applied field experience and a background in geophysics, Nathan is a go-getter! If your industry is oil and gas or a power producer Nathan will engineer a solution that will last. The quality of his data and accuracy of his findings will not disappoint!

Our Team Leaders

casey coyle

Michael Edwards

Michael “Big Mike” Edwards, with a background in business and heavy construction, is shown here conducting a chloride corrosion deterioration study of the Burnside Bridge, in Portland, OR.

casey coyle

Matthew Edwards

Matthew “Data Man” Edwards, with a background in geophysics, is shown here conducting a structural evaluation of a concrete dam abutment in Brownsville, OR.

casey coyle

Casey Coyle

Field Engineer | GPR Data Eugene

Bringing all the experience needed in geology, Casey is our in house geologist. When we are looking for soul permativity or needing to model antenna penetration feasibility for certain projects. Casey is our go to guy! As an expert in GPR concrete imaging, Casey offers professionalism and value to all our projects.

casey coyle

Daniel Hardy

Field Engineer | GPR Data Los Angles

With a background in geophysics Daniel can post process, model, duplicate, analyze, and georeferenced any site in the world. Being trained by some of the GPR Data post processing pioneers, he is an industry expert in GPR Data collection.

casey coyle

Ian McMullen

Field Engineer | GPR Data Portland

Construction materials and laboratory testing are Ian’s specialties. With 10 plus years experience in nondestructive testing and ground penetrating radar there is hardly a case scenario he hasn’t seen. Ian’s work ethic is second to none! If compressive strength of concrete or corrosion on banded post tension cables is the information you are after Ian delivers every time!

casey coyle

Billy Malone

Field Engineer | GPR Data Las Vegas

Mechanical and Geotechnical Engineering are his trades, pulling off the impossible is his specialty.

casey coyle

Nathan Rasnick

General Manager | GPR Data Las Vegas

With 15 years of applied field experience and a background in geophysics, Nathan is a go-getter! If your industry is oil and gas or a power producer Nathan will engineer a solution that will last. The quality of his data and accuracy of his findings will not disappoint!

What is Ground Penetrating Radar?

Ground penetrating radar is a non-destructive geophysical method that produces a continuous cross-sectional profile or record of subsurface features, without drilling, probing, or digging. Ground penetrating radar (GPR) profiles are used for evaluating the location and depth of buried objects and to investigate the presence and continuity of natural subsurface conditions and features.

Ground penetrating radar operates by transmitting pulses of ultra high frequency radio waves (microwave electromagnetic energy) down into the ground through a transducer (also called an antenna). The transmited energy is reflected from various buried objects or distinct contacts between different earth materials. The antenna then receives the reflected waves and stores them in the digital control unit.

GPR works by sending a pulse of energy into a material and recording the time required for the return of any reflected signal. A series of pulses over a single area make up what is called a scan, or trace. Reflections are produced whenever the energy pulse enters into a material with different electrical conduction properties (dielectric permittivity) from the material it left. The strength, or amplitude, of the reflection is determined by the contrast in the dielectric constants of the two materials. This means that a pulse which moves from dry sand (diel of 5) to wet sand (diel of 30) will produce a very strong, brilliantly visible reflection, while one moving from dry sand (5) to limestone (7) will produce a weak reflection.

what is gpr

Advantages

GPR measurements are relatively easy to make and are not intrusive. Antennas may be pulled by hand or with a vehicle from .8 to 8 kph, or more, that can produce considerable data processing. Graphic displays of GPR often resemble geologic cross sections. When GPR data are collected on closely spaced (less than 1 meter) lines, these data can be used to generate dimensional views of radar data greatly improving the ability to interpret subsurface conditions.

“The engineers at GPR Data Inc’s Portland office are top notch. We called on them to help settle a dispute over the location of multiple UST’s situated close to an adjoining property we had under contract to close. Matthew sent two engineers out to collect the GPR data then produced a report detailing the location, depth, and size, of each UST. To our benefit we discovered the tanks were there but not situated on the sale property. It turned out the property line was plotted wrong and the tanks belonged to the adjacent property. Matthew was professional, accurate, and saved us a lot of unanticipated costs. Their services offer great value and we highly recommend GPR DATA Inc.”

 
Holdhusen Real Estate Group  |  Keller Williams Portland Central

Contact Us

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Eugene, Oregon (Corporate Office)

Phone: 541-345-1075
Fax: 541-684-7865

2645 Suzanne Way, Eugene, OR 97408

Portland, Oregon

Phone: 541-255-8780

1261 SW Binford Lake Pkwy, Portland, OR 97080

Medford, Oregon

Phone: 541-953-0039

Seattle, Washington

Phone: 541-228-6851

Las Vegas, Nevada

Phone: 702-240-3046

8220 Ducharme St, Las Vegas, NV 89145

Los Angeles, California

Phone: 805-320-2421