GPRS of Kansas City was contracted by a client in Kansas City to locate underground utilities before the start of their project. Ground Penetrating Radar Systems, Inc. utilizes the Subsurface Investigation Methodology (SIM) to limit subsurface risks. SIM pairs electromagnetic induction with ground penetrating radar and a highly trained Project Manager who utilizes a specific standard operation procedure that maximizes the technologies at our disposal.

Ground penetrating radar is a great tool to use when searching for underground utilities, but it has its limitations. This is the reason why GPRS, Inc. uses electromagnetic induction. Electromagnetic induction allows the GPRS Project Manager to use a tracer wire to induce and trace a specific signal to locate utilities. This is a technology to use when attempting to locate a utility that’s too deep for the ground penetrating radar. The electromagnetic locator can passively detect live AC power or radio signals that are traveling along some conductive utilities. The EM locator can be used in conjunction with a transmitter to...

You may have watched the NFL draft from your home or favorite sports bar; hopefully you enjoyed it. It was quite a production throughout, but maybe even more amazing was the effort to set the stage for the event! There were thousands of crew members that helped to create the one of a kind stage and environment at the end of Broadway St. in downtown Nashville.

One of the crews that played a critical role in the success of the event was GPRS. GPRS was called to the project on a weekly basis to support operations by locating subsurface utilities throughout the work area and beyond. GPRS was utilized to provide utility locating prior to driving fence posts, tent anchors, support columns and placing temporary electrical, drainage and sewer lines. Throughout the weeks leading up to the NFL Draft event, GPRS located dozens of main utility lines including gas, electrical, water, sewer, storm and telecommunication. GPRS was also successful in locating a number of secondary and service lines. Having each of these utilities located ensured that the other personnel on site were safe...

Ground Penetrating Radar Systems, Inc. of Minneapolis, MN was contacted by an electrical subcontractor to locate reinforcement and conduits in an elevated, post tension, concrete slab in Minneapolis. The customer was looking to core drill through the slab and did not wish to strike any power, post tension cables or under slab contents during the process. GPRS, Inc. arrived on site to supply the customer with concrete imaging without delay, providing the information needed and keeping the project on schedule. Our standard turnaround time for scheduling projects is twenty-four to forty-eight hours and we are often available to be on projects for same day service requests.

Ground Penetrating Radar was ideal for this site as it is an active office building in Minneapolis with many people on site for the construction project as well as tenants on different floors. GPR does not require the evacuation of the area as does traditional x-ray concrete imaging. GPR doesn’t emit any radiation and is completely safe to be around. Traditional xray is mostly done after hours; GPR can...

Ground Penetrating Radar Systems, LLC. was contacted by an electrical contractor in Fargo, ND prior to drilling through an elevated concrete slab. The contractor was concerned about drilling through critical reinforcement and thus contacted GPRS to do concrete scanning using GPR (ground penetrating radar). This particular project involved the building of a 17-story building in downtown Fargo along with an adjacent parking ramp. This particular Fargo building had lots of different types of slabs with consduits, rebar and post-tension reinforcement in different areas. GPRS was able to perform the concrete scanning in a non-destructive and timely matter without interfering with the other work being done on site. While on site, GPRS was able to help out another Fargo plumbing contractor with locating rebar in a poured wall prior to core drilling. With the schedule and scope of this Fargo project being of highest importance, GPRS was able to have a project manager on site within 24-48 hours. By having project managers located near all major cities nationwide, GPRS is the industry...

GPRS was contacted by a local construction company to scan for suspect radiant heat tubing at a new Tesla facility near Chicago, Illinois. The contractor needed to find the heat tubing in order to safely remove the metal sheath around the existing vehicle lifts future building projects.

GPRS also scanned several areas for the electricians on site in order for them to safely dig a trench for new underground electric lines for the Tesla charging stations. GPRS was able to pair thermal imaging and GPR technologies in order to locate the heat tubing for a safer dig and saw cutting.

The thermal camera we use can detect changes in temperature as small as <0.1°C with accuracy with 2°C. When the system is heated near to or after the start of the project there is a contrast between the temperature of the tubing and the concrete slab.

“Time is a primary currency traded on any given construction project. At Ground Penetrating Radar Systems, our everyday efficiency in operations allows us to respond to the immediate needs of our customers, often within 24 hours or...

It’s no mystery that drilling for environmental samples comes with certain risks. Overhead power lines, above ground obstacles like crowded parking lots, and, perhaps most challenging of all, underground utilities.

Drillers, geotechs, and environmental firms alike know this particular challenge full well. Because of this, robust damage prevention plans are created in attempt to eliminate line strikes and other hazards associated with drilling for samples. Various best practices are considered, implemented, and refined as experience dictates.

Construction teams and engineers must work hand in hand to make sure that buildings and structures go up in a safe yet timely manner. In Orlando, there is an array of amusement parks, resorts, hotels and a so on. Currently everything seems to be growing which is great for business, but it also means that sometimes, we must be even more careful when making changes to plans

A construction team at one of these amusement parks was handed down an alteration that needed to take place to account for an addition they had not initially planned on. Basically, they needed to drill for anchors into a structural column to add some metal plates. They needed to make sure they abided by the requests for the changes without undermining the integrity of the structural steel. Being well acquainted with Ground Penetrating Radar Systems the supervisor reached out to them and had them come out to scan for the structural steel (rebar) prior to drilling.

After arriving on site, the construction team had already had a boom lift brought into the area so that the GPRS professional could access...

Ground Penetrating Radar Systems, LLC. (GPRS) was contracted to locate everything in a concrete slab at a parking garage, located in West Palm Beach, Florida. The contractor had no idea what was in this slab where they wanted to core due to the fact that the post tension plans are not 100% accurate. GPRS was hired to mark all findings in order for them to core drill so the local electricians could run electrical lines through the slab. With the amount of structural steel and post tension within a slab it is not easy to find a good place to core through a slab without compromising the strength of the structure. Reference the picture below.

A valued customer recently requested that we map out all post tension cables in an Orlando area resort. There were four areas, each about 500-1000 square feet, that needed to be mapped out, with both the post tension cables and the conduit marked. We were asked to paint the PT cables red and the conduit blue in order to distinguish between the two.

The customer had photos of the area prior to the concrete pour, so we were able to compare our field markings to photograph, and we thought the results were worth sharing. Not every job allows for such a stark visual confirmation of our findings, but in this case, the customer’s photo demonstrated the clarity and accuracy of our marks.

Note: There was a piece of conduit in the photograph that was not in our field markings. We confirmed that this conduit had, in fact, been removed prior to the pour.

The conduit was easy to distinguish from rebar in this particular slab because it was empty and thus created a negative reaction—the metal rebar reflects the GPR signal back to the receiver, whereas the air inside empty...

GPRS of Florida received a call from a new customer who had recently hired one of our competitors to scan an area prior to the installation of several plumbing lines. Our customer was concerned that the scanning service that they had used made several mistakes, and several items had been missed. After the customer called GPRS, we offered to only charge them for the project if we were able to offer them new, and relevant information.

After getting started with the scan, it became immediately clear to us that our competitor made several mistakes. In the image above, you can see several of the markings that GPRS marked onto the surface (in black). You can also see our competitor’s markings (in red crayon). Our competitor had missed the fact that one of the lines ran at a slight diagonal (at about a 15º angle). Our competitor had marked the line as through it were straight, and as a result, their markings were off by up to 4”.

As we completed this project, it became clear to us that our competitor had likely rushed the scanning process, as there were several obvious...

It can be hard to foresee all situations and plan accordingly for each scenario when constructing new buildings. Subcontractors come and go and you can’t always keep an eye on what every person does on a job site. A plumbing contractor had installed the necessary plumbing lines and also installed clean-outs for future lines to be installed at a new warehouse in Orlando, FL. Little to their knowledge that after they installed everything the concrete team cover the clean-outs and poured concrete over them. The problem was that there was no way of them knowing where the clean-outs would be for future use. They had a good idea of where they were but finding multiple clean-outs in a large warehouse can be like finding a needle in a haystack.

Fortunately, for this team they knew about Ground Penetrating Radar Systems. GPRS is a team of professionals that specializes in locating subsurface elements. This was a unique project for the Orlando team, but when it comes to problem solving GPRS shines. After a few conversations, it was decided that we could help their team find a...

The Fort Lauderdale Airport has been making countless changes in recent years, as a result they’ve had Ground Penetrating Radar out there sporadically working alongside them in different projects. Recently, they were tasked with adding multiple steel plates to several beams. Normally, this would not be such a complicated job because the beams would not be filled with too many rebars that could hinder them from finding their coring locations. However, things were very different this time around and a bit problematic because, each time they drilled, they’d hit multiple rebars.

In light of that, in an effort to avoid wasting their time guessing where to drill and to avoid damaging the beams, the crew at Fort Lauderdale Airport decided to call out Ground’s Penetrating Radar to help them locate all of the rebars. We were happy to lend our services and demonstrate our expertise in concrete scanning. They knew that with our technology we could successfully identify and mark all of the rebars for them, thus providing them with an efficient way to complete their work and ensure...

GPRS was called out to scan for private utilities at a wastewater treatment plant near the quad cities in Iowa. The engineers on this project were not only concerned with where each utility was but also interested in mapping the features and including depths of each utilities. GPRS was able to come out with only a day notice and do just that!

Scan before you plan! This ensures worker safety and saves valuable time by targeting specific areas of concern. GPRS was able to provide a GPS report overlaid on Google Earth and an overlay on a pre-existing CAD file for the future building plans at this site.

GPRS was contacted by a engineering firm to investigate for any buried structures or possible underground storage tanks (USTs). After arriving on site, the firm let GPRS know that there had been a truck stop with diesel filling stations at one point dating back all the way to the late 40’s or early 50’s.

There was no clear documentation stating whether the USTs had been removed or abandoned in place, so GPRS did what we do best; create a strategy to provide the best subsurface scanning solution.

GPRS scanned the area with Electromagnetic Induction (EMI) equipment, and we were able to provide conductivity maps that represented the data collected from the scanning process and overlaid on to Google Earth. GPRS also provided a detailed report which included maps of any utilities around the area as well as where the suspect tanks were to be. Data screenshots were saved for the reporting as well.

“Time is a primary currency traded on any given construction project. At Ground Penetrating Radar Systems, our everyday efficiency in operations allows us to respond to...

The Chicagoland area is filled every year for the summer festivals, food, music, and fun. With so much entertainment available, it is commonplace to see contractors setting up structures and other festival related items, seemingly daily. The skilled contractors whom perform these tasks can make it seem like an easy and often occurring task. But it is worth noting, that these professionals would likely spend time preparing and planning in order to perform these setups safely and efficiently.

An important tool in any contractor or installer toolbox, is the utilization of locating procedures by GPRS. GPRS provides critical information regarding the location of utilities which can be beneficial to the design, installation, and site safety for each jobsite. Additionally, the information GPRS provides can aid in lessening the delays, costly repairs or downtime, and safety risks which occur when utilities are struck. In addition to markings on-site, GPRS can quickly produce GPS maps and CAD drawings from the findings which communicate utility locations to stake holders and assist...

There is a lot happening in Tampa right now, and we have recently expanded our North Florida team to stay ahead of the demand. We believe that scheduling GPR should be simple. You should trust the team you call. You should know that they have your best interest in mind. Scheduling an appointment should be quick, and you shouldn’t have to wait a week to receive service. Every project manager should arrive on time and be friendly, qualified, and dedicated to your project. He should make clear markings, explain what they mean, and his results should be industry leading in their accuracy. We believe that our Tampa customers deserve our above and beyond, standard. Everything we do is a reflection of these beliefs.

We recently got a call from a new customer in the Tampa area and we were able to mobilize a project manager the next day. Nate used a high frequency GPR antenna to scan for anomalies in and directly below the slab, and then he used a low frequency antenna to scan for utilities deeper down. Finally, he swept the scan are with our EM technology to detect...

Ground Penetrating Radar Systems, LLC. of Denver, Colorado was contacted by a contractor to locate post tension cables in a concrete slab at a new building in Westminster, CO. The customer was looking to drill dowels into the concrete slab to install an additional reinforced slab within the building. The customer was looking to avoid striking post tension cables within the concrete deck. GPRS, LLC. arrived on site to provide digital concrete imaging (Ground Penetrating Radar) for the customer keeping the project on schedule without repairs or serious safety risks.

Ground Penetrating Radar was ideal on this site as it was a construction site with many people on site working. GPR does not require evacuation of the area as does traditional x-ray concrete imaging. GPR emits no radiation and is completely safe to be around. Traditional x-ray is mostly done after hours; GPR can be done during normal business hours. All data findings are marked directly on the surface at the customer’s request for the easiest interpretation of the scanning provided, with GPR there is...

Ground Penetrating Radar Systems, LLC. of Denver, Colorado was contacted by a casino to locate post tension cables as well as conduit within a concrete slab. The client was looking to determine where the best places to core new holes for a planned renovation including new plumbing and electrical would be. GPRS, LLC. arrived on site without delay using digital concrete imaging utilizing ground penetrating radar to map out the contents of the slab to determine how to best design the upcoming renovation.

Ground Penetrating Radar Systems, LLC. specializes in ground penetrating radar service and is our primary source of revenue. With that in mind, the amount of experience and specialization of subsurface imaging and investigations as well as a nationwide network of project managers; GPRS, LLC. is unrivaled in the Ground Penetrating Radar industry. GPRS, LLC. can supply your project with the safest and most accurate ground penetrating radar service in the business. Your safety and job efficiency is our main goal at Ground Penetrating Radar Systems, LLC.

If you...

Ground Penetrating Radar Systems, LLC. of Denver, CO was contacted by a contractor to locate reinforcement within a concrete slab. The client was looking to drill into the concrete slab to install new dowels for a planned block wall. The customer was looking to drill holes through the concrete slab and did not wish to strike any reinforcement in the process. For a project like this, GPRS is able to determine several key factors of the concrete slab such as: reinforcement spacing, reinforcement depth, and slab depth of the concrete. GPRS, LLC. arrived on site without delay using digital concrete imaging utilizing ground penetrating radar to map out the contents of the slab to determine how to best proceed with this part of their project.

Ground Penetrating Radar Systems specializes in ground penetrating radar service and is our primary source of revenue. With that in mind, the amount of experience and specialization of subsurface imaging and investigations as well as a nationwide network of project managers; GPRS is unrivaled in the Ground Penetrating Radar...

Ground Penetrating Radar Systems of Denver, CO was contacted by a contractor to locate reinforcement within a concrete slab. The client was looking to determine how much weight the concrete slab could hold for the installation of heavy equipment on the unknown concrete slab. The customer was also then looking to install anchors to secure the equipment to the concrete slab and did not wish to strike any reinforcement in the process. For a project like this, GPRS is able to determine several key factors of the concrete slab such as: reinforcement spacing, reinforcement depth, slab depth, approximate reinforcement size, and the existence of grade beams and/or footers in the concrete. GPRS arrived on site without delay using digital concrete imaging utilizing ground penetrating radar to map out the contents of the slab to determine how to best proceed with the installation of the equipment.

Ground Penetrating Radar Systems, LLC. specializes in ground penetrating radar service and is our primary source of revenue. With that in mind, the amount of experience and...

Ground Penetrating Radar Systems of Denver, CO was contacted by a contractor to locate anomalies prior to drilling anchors at a construction site in Denver, CO. The customer was looking to drill in the ceiling just above water pipes. The customer was looking to avoid striking any unknown anomalies. GPRS, LLC. arrived on site without delay utilizing GPR for a more thorough sweep of the entire area, limiting any surprises of costly repairs and/or safety concerns. While being suspended on water pipes 20 feet in the air, GPRS, LLC. adheres to all safety measures and is properly trained to handle any situation.

Ground Penetrating Radar Systems specializes in ground penetrating radar service and is our primary source of revenue. With that in mind, the amount of experience and specialization of subsurface imaging and investigations as well as a nationwide network of project managers; GPRS, LLC. is unrivaled in the Ground Penetrating Radar industry. GPRS, LLC. can supply your project with the most accurate ground penetrating radar service in the business so you can...

Ground Penetrating Radar Systems of Denver, CO was contacted by a contractor to locate known and unknown utilities prior to boring for soil samples at an auto repair store in Northglenn, CO. The customer was looking to excavate and avoid striking any known and unknown lines while digging. GPRS arrived on site without delay using standard locating techniques as well as utilizing GPR for a more thorough sweep of the entire area, limiting any surprises of costly repairs and/or safety concerns.

Ground Penetrating Radar Systems specializes in ground penetrating radar service and is our primary source of revenue. With that in mind, the amount of experience and specialization of subsurface imaging and investigations as well as a nationwide network of project managers; GPRS, LLC. is unrivaled in the Ground Penetrating Radar industry. GPRS, LLC. can supply your project with the most accurate ground penetrating radar service in the business so you can rest easy in knowing that any safety concerns will be eliminated. Your safety and job efficiency is our main goal at...

Ground Penetrating Radar Systems of Denver, CO was contacted by a contractor to locate known and unknown utilities prior excavating for structural footers at a car dealership in Golden, CO. The customer was looking to excavate and avoid striking any known and unknown lines while digging. GPRS arrived on site without delay using standard locating techniques as well as utilizing GPR for a more thorough sweep of the entire area, limiting any surprises of costly repairs and/or safety concerns.

Ground Penetrating Radar Systems specializes in ground penetrating radar service and is our primary source of revenue. With that in mind, the amount of experience and specialization of subsurface imaging and investigations as well as a nationwide network of project managers; GPRS is unrivaled in the Ground Penetrating Radar industry. GPRS can supply your project with the most accurate ground penetrating radar service in the business so you can rest easy in knowing that any safety concerns will be eliminated. Your safety and job efficiency is our main goal at Ground...

GPRS of Denver, CO was contacted by a contractor to locate reinforcement within a concrete slab at a high rise building in downtown Denver, CO. The client was looking to drill into the concrete slab to install electrical and data in floor boxes and did not wish to strike any reinforcement in the process. GPRS arrived on site without delay using digital concrete imaging utilizing ground penetrating radar to map out the contents of the slab to determine how to best proceed with this part of their project.

GPRS specializes in ground penetrating radar service as a critical part of our subsurface scanning system. With that in mind, the amount of experience and specialization of subsurface imaging and investigations as well as a nationwide network of project managers; GPRS is unrivaled in the Ground Penetrating Radar industry. GPRS can supply your project with the safest and most accurate ground penetrating radar service in the business. Your safety and job efficiency is our main goal at GPRS.

If you are interested in learning more about our subsurface imaging...

Ground Penetrating Radar Systems of Denver, CO was contacted by a contractor to locate anomalies prior to boring for soil samples at an apartment complex in Denver, CO. The customer was looking to bore in several locations. The customer was looking to avoid striking any unknown anomalies. GPRS, LLC. arrived on site without delay utilizing GPR for a more thorough sweep of the entire area, limiting any surprises of costly repairs and/or safety concerns.

Ground Penetrating Radar Systems specializes in ground penetrating radar service and is our primary source of revenue. With that in mind, the amount of experience and specialization of subsurface imaging and investigations as well as a nationwide network of project managers; GPRS, LLC. is unrivaled in the Ground Penetrating Radar industry. GPRS, LLC. can supply your project with the most accurate ground penetrating radar service in the business so you can rest easy in knowing that any safety concerns will be eliminated. Your safety and job efficacy is our main goal at Ground Penetrating Radar Systems.

If...

Ground Penetrating Radar Systems, LLC. was contacted by a large contractor in the bay area that needed to know the location of utilities prior to excavation. The customer’s primary concern was to identify any utilities and other subsurface items within the excavation area prior to digging, so that they could take appropriate measures to avoid costly and hazardous utility strikes. The project consisted of scanning a large section of a road within the park to prepare for excavation and road repairs.

Utilizing the latest in Ground Penetrating Radar (GPR) technology and Radio Detection, Greg Milburn of the GPRS San Francisco/Oakland office, responded to the site and was able to mark out various utilities traveling through the proposed excavation area. Scans were taken with the GSSI 400mhz antenna, combined with the RD7000 radio detection device to search for electric, gas, communication, water, sewer and unknown lines. GPRS findings were then marked directly onto the surface in real time for the customer to see. By utilizing GPRS, the customer was able to identify...

GPRS LLC. of San Diego was contacted by a local general contractor to scan for known and unknown utilities prior to installing new footings for the car ports, and boring for a new power run from the panels to the school building. This contractor was installing a new solar car port structure at an elementary school.

GPRS was onsite within 24 hours of the general contractor’s request. Upon arrival, the general contractor showed the GPRS project manager the approximate location of the bore path, as well as the area where the new solar car port structures were to be erected. At this point, the project manager onsite thoroughly investigated the areas shown, and used a combination of ground penetrating radar, which is also known as “x-ray”, as well as traditional locating methods using electromagnetic locating, to locate all existing utilities in their path. All findings were marked directly on the surface with their corresponding depths, and explained to the site contact at the completion of the job. The project took approximately three hours to complete, which kept...

Ground Penetrating Radar Systems, LLC. – GPRS of Arizona was contacted by a national contractor to locate all post tension cable, rebar, and conduit lines in concrete on a multi-level parking garage, in downtown Phoenix, AZ.

The local contractor was responsible for installing a newly upgraded roll-up security door which was to be anchored into the existing flooring and ceiling. Timeliness of the project relied completely upon GPRS to respond and produce findings of anomalies within concrete in a quick manner so as to facility a quick install of the new door without compromising on security.

Ground Penetrating Radar Systems, LLC. is very familiar with high volume and urgent projects. GPRS was called that afternoon and was able to arrive on site to scan the entire area with ground penetrating radar and signal induction technologies. GPRS completed the survey for electrical conduit and reinforcements and was able to determine that the area was highly congested with conduit and reinforcements and thus avoid costly damage that could have taken place, had...