Past Project Archive

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Featured Concrete Scanning Story

GPR Used Concrete Scanning At Commerical Property

Ground Penetrating Radar Systems was called to scan the floor of a commercial property prior to the installation of new floor boxes, and repositioning existing ones. The scanning done by GPRS allowed the customer to confidently cut into the slab without damaging the conduits located just a few inches below the top of the slab. GPRS used a radio detection wand to pick up any live cables that might be in the area along with a 1600 MHz antenna with the ground penetrating radar to scan the areas.

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Featured Utility Locating story

GPR Used To Locate Underground Electrical Utilities

Ground Penetrating Radar Systems, LLC. (GPRS) of Arizona was contacted by a large mining company to locate all underground electrical utilities in a large renovation / upgrade project outside of Camp Verde, Arizona. There were known electrical lines present and it was essential that their locations were properly documented to prevent injury, damage, and costly repairs or interruptions to mine operations.

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GPR used for Subsurface Locate In Phoenix

Ground Penetrating Radar Systems, LLC. of Phoenix, Arizona was contacted by a local Environmental firm to clear some areas inside this factory so they were able to drill for soil samples. When doing this type of locate we need to utilize two types of scanners so that we can see what lies within the concrete and what lies beneath it. This factory has a bunch of machinery that requires a bunch of electrical to operate it and the last thing...

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Utility Locating in Tucson

GPRS’s office in Phoenix, Arizona was hired by a client to locate utilities outside of a small strip mall in Tucson, AZ. The contractor at the site was needing to cut the asphalt and excavate for the installation of a new gas line to a pizza store that was being built inside a vacant tenant space. All of the utilities for this entire strip mall entered through the back of the plaza where they were wanting to install the new gas line. This...

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GPR Used for Subsurface Locate

Ground Penetrating Radar Systems, LLC. of Phoenix, Arizona was contacted by a local General Contractor that was using an existing office and turning it into a building for a storage company. The general contractor on this project was in the planning process of this project and needed to have all of the rebar and post tension in the concrete beams identified so they could see if the building is strong enough to hold the new storage units....

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GPR used for Subsurface Locate in Chandler, AZ

Ground Penetrating Radar Systems, LLC. of Phoenix, AZ. was contacted by a local General Contractor that was building a new office complex. The GC on this project was in the planning process of this project and needed to have all of the rebar and concrete beams identified so they could adjust their core holes accordingly. This particular slab in the building was constructed with multiple concrete beams that were filled with post...

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Utility Locating at McCarran Airport

GPRS’s office in Phoenix, AZ was hired by a client to locate utilities in the center of the airport prior to the install of a new concrete slab and bollards for a larger propane tank. This job was next to the radar building and had multiple lines running near the proposed area for the upgraded equipment. GPRS utilizes both Ground Penetrating Radar as well as your typical electromagnetic locating wand. The area scanned for the tank was...

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Utility Locating in Safford

GPRS’s office in Phoenix was hired by a client to locate utilities outside a Walmart parking lot in Flagstaff, AZ prior to the installation of a new canopy and signs throughout the parking lot. GPRS utilizes both Ground Penetrating Radar, as well as, your typical electromagnetic locating wand. The area scanned for the canopy was roughly 200’ x 100', just out front of the main entrance of the building. It was very important to have us come...

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GPR used for Subsurface Locate in Las Vegas

Ground Penetrating Radar Systems, LLC. of Las Vegas, Nevada was recently contracted out by a local general contractor to scan a concrete slab prior to cutting the slab. The plumbing contractor on this job site needed to cut the slab to add some new underground plumbing for this tenant improvement project. Prior to them cutting the floor they wanted to verify that there were no utilities underneath or within the slab that would be affected by...

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Utility Locate in Prescott

The purpose of this utility locate was to potentially find the main water line. The customer is going to be installing a canopy in the area where this main water line was found. It was crucial to find the water line and trace it out so that the customer was aware of the water line running down the middle of the install area. It is necessary using underground utility locating to find any other potential lines as well, as it is our duty to...

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GPR Used For Subsurface Locate at Phoenix Airport

Ground Penetrating Radar Systems, LLC. of Phoenix, AZ was contacted by a local general contractor that was preparing to do a tenant buildout on one of the spaces for the new terminal at the Sky Harbor Airport. The general contractor on this project was in the planning process and needed to have all of the rebar and concrete beams identified so they could adjust their core holes accordingly. This particular slab at the airport was constructed...

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Ground Penetrating Radar & Radio Detection Utilized to Locate Utilities inside a Cell Tower Compound

Prior to excavating or drilling it’s always essential to have information as to what underground utilities could possibly be passing through the proposed areas. Not knowing what utilities could be in the area could result in serious injury and potentially cost the contractor a bunch of money to repair anything damaged. These facts are multiplied when working inside a cell tower compound. If any utilities were damaged, the cost of repair would...

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CCTV Crawler Video Inspections For Sewers And Storm Drains

Inspecting the internal condition of gravity utility pipes is not a new thing in the world of underground utilities. However, it is something that has become increasingly important as many gravity utility infrastructures have become older, and the pipes have been compromised over the years. A problem with a sewer or storm drain pipe can cause major concerns, such as: sink holes, ground water contamination, soil contamination, sewage...

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Ground Penetrating Radar Used to Investigate Outside for Utilities Prior to Digging a Trench at an Industrial Facility

It’s essential to have as much information as possible before digging or drilling as to what utilities could be passing through underground. It’s even more essential when working inside an industrial facility with multiple electrical feeds passing through. The thought of digging, trenching or drilling prior to having a private utility locate completed, should never happen. The risk of injuries is too high.

A general contractor had a...

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Concrete Imaging Technology used to Locate Obstructions Embedded in a Concrete Slab

Never go in to a demolition project without having as much information as possible. It can be difficult to determine where new floor plugs & plumbing should be placed in the design phase without having any information as to where existing conduits/structures are below. Ground Penetrating Radar is an excellent tool to utilize when trying to layout floor cores. GPR can detect structural beams, conduits, reinforcing steel, etc. inside or...

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GPR Used To Locate Post-Tension For Solar Contractor

Ground Penetrating Radar Systems, LLC. of Phoenix, AZ. was contacted by a solar contractor in Tucson, AZ. to locate PT cables on an outdoor basketball court. The contractor was looking to install multiple support columns to carry the load of new solar panels over top of a basketball court at a park in Tucson. Four of the columns were to run between the two basketball courts through the concrete. It was very important to scan this area prior...

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Concrete GPR At Arizona State University

Ground Penetrating Radar Systems of Arizona recently completed scanning of an exterior wall prior to drilling to run a new fiber optic line. The contractor was drilling through the block wall but was unsure where the rebar and possible conduits were located.

GPRS of Tempe scanned the location and located rebar both vertically and horizontally. GPRS was able to mark the location of the reinforcing along with an approximate depth of the...

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Ground Penetrating Radar Used for Utility Locating at the US / Mexico Border

Ground Penetrating Radar Systems, LLC. of Arizona was contacted by a national contractor to locate all underground utilities for the U.S. Border Patrol fence at the US / Mexico Border in Yuma, Arizona. The contractor was given the difficult task of excavating near the Border Patrol fence line in order to install a new observation post for Homeland Security. This was a highly secured area requiring security escorts from Homeland Security and...

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Utility Locate Prior to Monitoring Well Install

Monitoring wells are needed on a regular basis in order to test soil conditions below the surface. They can be necessary when selling property, when a hazardous material spill occurs, or for a number of different reasons. When installing or removing monitoring wells, it is important to know what utilities might be in the area. No matter what project is happening where digging is necessary, there are ways to keep yourself and your crew safer...

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Locating Abandoned UST

Ground Penetrating Radar Systems, LLC. was contacted by the city of Phoenix to locate and map an old and abandoned UST which was from the mid-1930s. Ground Penetrating Radar Systems, LLC. used a 400 MHz GPR antenna to perform the survey. The findings were marked directly on the surface with spray paint as shown in the picture below. Knowing the exact location of UST allowed the city and the contractors that were working for them to continue...

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Ground Penetrating Radar Used to Locate Rebar Within Pan Deck

Ground Penetrating Radar Systems, LLC. - GPRS - of Arizona was contacted by a major national general contractor to locate rebar within a pan deck concrete slab in Phoenix, Arizona. This Phoenix, Arizona project required the core drilling of the concrete slab to allow for installation of new conduit lines. It was essential to avoid hitting and damaging all structural rebar as well as to locate any conduit that was within the concrete...

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Rebar Locating Services

GPRS Phoenix office recently completed scanning in a commercial building in Chandler, Arizona. The purpose of the scanning was to locate rebar and conduits in a metal deck prior to core drilling. The customer was aware that conduits were present in the concrete above the metal deck and could possibly be struck during drilling.

GPRS, LLC. scanned 2 large areas using 1600MHz ground penetrating radar or “GPR” to locate reinforcing steel...

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Ground Penetrating Radar Used to Locate Post Tension Cable at Private Residence

Ground Penetrating Radar Systems, LLC. of Phoenix, AZ was contacted by a local residential general contractor to locate post tension reinforcement and conduit in a concrete slab for a residential renovation in Phoenix, AZ.

The contractor had the task of relocating a shower / sewer drain line in a post tension concrete slab. This required the locating of post tension cable in the slab. Post tension cable is often tightened to 20,000 psi...

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Private Underground Utility Locating For Gas, Water, and Electric

Ground Penetrating Radar Systems, LLC. - GPRS - of Arizona was contacted by a major general contractor to help locate underground utilities such as gas, water, electric, and power lines. Private underground utility locating was necessary as 811 or “Blue Stake” services will only locate on the public utility side of any meter. The contractor knew it was essential to recruit a private utility locator like GPRS, LLC. to locate all underground...

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Private Utility Locating At Flagstaff Mall

GPRS of Flagstaff performed a utility locate in a shopping mall in Flagstaff, Arizona. GPRS was hired to locate and mark utilities around 5 different boring sites around the mall parking lot.

Ground Penetrating Radar Systems of Arizona was able to clear each boring location by partnering GPR technology with a utility wand. The ground penetrating radar was used to scan a grid around each site and located several anomalies. A utility wand...

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Post Tension Cable Locating Project

Ground Penetrating Radar Systems, LLC., serving the entire state of Arizona and nationwide, was contacted by a major contractor to conduct an investigation of a residential high rise are where two water drains needed to be relocated. This required cutting through the concrete where it was critical to locate and avoid all post tension cable and rebar. Ground Penetrating Radar Systems, was required to immediately respond to the urgent nature of...

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Imaging of Concrete For Contractor

Ground Penetrating Radar Systems of Phoenix office was contacted to scan a concrete slab. The customer was worried that post tension cables would be damaged during the remodeling of office restrooms. GPR is an effective method in quickly locating post tension cables.

GPRS Phoenix scanned the areas in the restroom for reinforcing steel and PT cables. The findings were marked directly on the surface with permanent marker and clearly...

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Ground Penetrating Radar Used to Locate Underground Water Line

Ground Penetrating Radar Systems, LLC. - GPRS - of Arizona was contacted a locate contractor to locate private utilities on a commercial site. The contractor was unable to complete the project without locating a high voltage 480 volt power line as well as an unknown sanitary / sewer / septic line.

Ground Penetrating Radar Systems, LLC. arrived on site and used both ground penetrating radar and radio detection / signal induction...

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Ground Penetrating Radar Used to Locate Conduit and Post Tension Cable

Ground Penetrating Radar Systems, LLC. of Arizona was contacted by a local tenant improvement contractor to locate post tension reinforcement and conduit in a concrete slab over grade at a commercial office location in Phoenix, AZ.

This demanding job had a narrow timeframe for completion as well as a large number of core drilling locations to clear for all reinforcements such as post tension cable and rebar as well as any electrical or...

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Concrete Scanning At Hospital

Ground Penetrating Radar Systems Phoenix was hired to scan multiple locations at a hospital in Glendale, Arizona. The contractor needed to have the concrete walls scanned prior to core drilling to run conduit lines.

GPRS Arizona scanned each location using radar designed for concrete applications. The ground penetrating radar or “GPR” is the new way to x-ray concrete slabs and walls. The technology is extremely accurate and allows for...

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Underground Utility Line Locating for Retail Tenant Improvement Project

Ground Penetrating Radar Systems, LLC. - GPRS - of Arizona was called upon by a major general contractor to help locate underground utility lines in a retail tenant improvement project. All underground utility locating services were needed for finding potential gas, water, communication, electric, other any other underground utility present. GPRS’ private underground utility locating was necessary as 811 or “Blue Stake” services will only...

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Ground Penetrating Radar Used to Locate all Underground Utilities

Ground Penetrating Radar Systems, LLC. - GPRS - of Arizona was contacted by a locate contractor in the city of Tucson, Arizona to locate all underground utilities within a designated area in a commercial parking lot to clear nine separate areas for soil borings. These soil borings were expected to extend between 50 and 100 feet deep. Therefore, it was essential that all utilities were located to ensure no soil boring drill bits would damage...

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Ground Penetrating Radar Used for Locating Underground Utilities and Underground Storage Tanks (UST)

Ground Penetrating Radar Systems, LLC. of Arizona was contacted by a national contractor to locate all underground utilities and multiple underground storage tanks (UST) in Yuma, Arizona. The contractor was given the difficult task of not only finding underground utilities, but also the former locations of where underground storage tanks once were installed. GPRS, Inc. arrived on site to provide digital underground imaging (Ground Penetrating...

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Ground Penetrating Radar Used to Locate and Confirm Post Tension Cable

Ground Penetrating Radar Systems, LLC., serving the entire state of Arizona and nationwide, was contacted by a major contractor to conduct an investigation in Tucson, Arizona. This tenant improvement project required several proposed core-drilling locations to be drilled through an elevated concrete slab. This slab was known to have several post tension cables (PT) as well as rebar. Adding to this, were several concrete beams. The project...

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Ground Penetrating Radar Used to Locate Post Tension Cables and Conduit in a Residential Home

Ground Penetrating Radar Systems, LLC. of Phoenix, AZ was contacted by a local residential general contractor to locate post tension reinforcement and conduit in a concrete slab for a residential renovation.

The contractor had the task of relocating a drain that was situated within a wall. This required the wall and drain to be moved over 12" and cutting through the post tension concrete floor. It was necessary to scan the floor with...

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Concrete Scanning at Chase Bank

An electrical contractor was hired to install electric for a new customer service desk at a Chase Bank branch. The new desk required saw cutting the concrete to install the electric. The contractor was concerned about live power and communication lines in and below the slab. GPRS was hired to scan the saw cut trench line to locate the conduits.

GPRS met the contractor on site and walked the job scope. The contractor laid out the...

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Scanning Ancient Burial Site for Documentary Film

Ground Penetrating Radar Systems, LLC was contacted by Committee Films to assist in locating a burial site on the Mustang Mountains near Ft. Huachuca, Arizona. The customer was filming a documentary and utilized GPR to scan the area around a memorial tombstone believed to be a burial site. GPRS used 400MHz ground penetrating radar to locate any density changes or anomalies in the ground at the site. Please contact Ground Penetrating Radar...

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Ground Penetrating Radar Used to Locate Post Tension Cable at Large Commercial Renovation

Ground Penetrating Radar Systems, LLC. - GPRS - of Arizona was contacted by a local contractor to locate all post tension cable, rebar, and conduit in the concrete slabs on multiple floors in a large commercial renovation project in Phoenix, AZ. The project required core-drilling several large holes ranging from 3" to 8" in diameter into the concrete slab. It was critical to avoid hitting any post tension cable, reinforcements, or...

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Ground Penetrating Radar Used to Locate Underground Utilities

Ground Penetrating Radar Systems, LLC. - GPRS - of Arizona was contacted by a large mining company to locate all underground electrical utilities in a large renovation / upgrade project outside of Camp Verde, Arizona. There were known electrical lines present and it was essential that their locations were properly documented to prevent injury, damage, and costly repairs or interruptions to mine operations.

This project was a particular...

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Private Utility Locating At North Arizona University

GPRS of Arizona was contacted to provide private utility locating at North Arizona University in Flagstaff, Arizona. The contractor was hired to build a new building on campus and would need to dig to install new utility tunnels and foundations. Due to the high number of utilities running in the area, GPRS was able to mobilize quickly to the location.

GPRS Arizona used ground penetrating radar and radio detection to detect and locate...

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Ground Penetrating Radar Used to Locate and Confirm Rebar

Ground Penetrating Radar Systems, LLC., serving the entire state of Arizona and nationwide, was contacted by a major contractor to conduct an investigation of several key areas where concrete coring was to take place, in order to locate all post tension cable and rebar. Ground Penetrating Radar Systems, was required to immediately respond within hours of the need, traveling to the job site in Phoenix, AZ.

This particular job was...

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Concrete Scanning at Commercial Property

Conduits in a concrete slab can cause a huge headache if hit while saw cutting. It’s very difficult to tell the direction they’re headed if you don’t take the proper precautions before cutting begins. Using ground penetrating radar can help determine the direction and depths of conduits located in a concrete slab. If there’s any question if conduits exist in a concrete slab, it is imperative that any and all of them are located prior to...

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