Overhaul of Communications and Power Stations

Ground Penetrating Radar Systems (GPRS) Inc. was contacted to locate underground utilities by a construction company that is completing an overhaul of the communications and power stations around the Pittsburgh International Airport.

An urgent request was made by the contractor to have a same day underground utility locate done, and with over 150 GPRS technicians across the country, the request was met by the GPRS technicians out of Pittsburgh.

The job required the location of an underground power line that would be tapped into and run directly to the energy shelter to reduce redundancy and material.  Ground Penetrating Radar (GPR) along with passive and direct connect radio detection were used to locate the power line and the communication lines that crossed through the prospective trench dig path.

The GPR and direct connect radio detection methods were able to accurately locate the position of four underground lines that would impact the project.  Along with location, GPRS technicians were able to determine the depths of the lines as well.  Knowing the location and depths of the lines helped the contractor save time and eliminate potential stress, injury and additional costs for this project.  Communicating with the contractor and documenting the utility locations with clear and accurate field markings and site photos were helpful methods to ensure the safe completion of the project.

Overhaul of Communications and Power Stations
(Field markings and GPR cart with 400MHz antenna attached.)

In construction, professionalism is everything, and completing your projects without incidents can make or break your bottom line. When you are excavating, it is important to have the utilities privately and publicly located. Utilizing GPRS for your project will help reduce injury, reduce lost productivity, and maintain incident-free professionalism that your clients demand.

GPRS uses the latest and greatest technology to locate power lines, fiber lines, water lines, UST’s, storm drains, and sewer drains under the surface. Utilizing GPRS on your project can help mitigate costly repairs, prevent severe injuries, and also maintain the integrity of your project.

Ground Penetrating Radar Systems of Pittsburgh is available to service the private utility locating and concrete scanning needs of Western Pennsylvania.

GPRS Locates Utilities, Vault, & Tunnel at Youngstown State University

Ground Penetrating Radar Systems was recently called out to a project by a general contractor to locate utilities for a project at Youngstown State University.  The scope of work was to locate any underground utilities for a new steam line that needed to be installed.  By using GPR and Radio Detection, many utilities were located.  Gas, electric, communication, chilled water, steam, sanitary, storm, and fire water were all located in the area of concern.  The outlining of an underground vault was also located with GPR as well as an underground tunnel that connected to the vault.  GPRS painted and flagged all utilities, the vault, and the tunnel on site.  In addition to locating the utilities on site, GPRS also completed a CAD and Google overlay of everything located on site to the contractor.  GPR and Radio Detection is an accurate and effective way of locating underground utilities, vaults, tunnels, and other obstructions prior to excavation.  Why dig not knowing where any utilities are when GPRS can locate and mark all utilities with depth indications for your safety!

The image below shows some of the many utilities located on site.

Youngstown State University1

Below is an aerial displaying everything located on site.

Youngstown State University2

Equipment

Equipmenttool

Ground Penetrating Radar (GPR)

  • GSSI SIR – 3000
    • GPRS uses a Geophysical Survey Systems Inc. (GSSI) SIR-3000 Radar unit. This is the most advanced GPR available. It allows for onsite interpretation, as well as stores data for later processing. This equipment is self-calibrating, allowing more precise depth and location measurements.
  • 400 MHz Antenna
    • This antenna typically allows data collection to a depth of approximately 4’- 6’, with a maximum capability up to 12’ depending on soil conditions. This specific antenna was created and calibrated specifically for locating underground utilities, UST’s, and other underground anomalies.

Radiofrequency Detection System (RD)

  • RD 7000+
    • This is an electro-magnetic tone locating device manufactured by Radio Detection. This specific model detects live power and RF signals underground, allowing us to locate electrical or telephone lines even if they are below the minimum size requirements to be detected by GPR.  It also allows us to detect utilities via induction or conduction with an exposed or known surface of the utility.

For more information on how GPRS, Inc. can help you on your next project, please contact Micah Stair at 330-639-8933 or by email at micah.stair@gp-radar.com.  We also have the capabilities of locating conduits, rebar, and post tension cables in a concrete slab.


GPRS Used to Help Drillers Miss Radiant Heat Tubes

A General Contractor had a project in Wrentham, MA inside of a new office building development. The scope of the project was to drill through the floor in multiple locations so that anchor bolts could be placed in the ground to secure multiple staircases. The drillers did not want to hit any radiant heating tubes because, if they did, the entire floor would have had to be excavated and the radiant heating would have had to be repaired or redone entirely. The General Contractor decided to contact Ground Penetrating Radar Systems of Rhode Island after learning that they have been in business since 2001 and each technician has the experience of performing an average of 350 surveys per year. GPRS was able to complete the investigation the next day and allowed the project to proceed without hitting a single radiant heating tube. GPRS uses real time applications and were experienced enough to be able to locate all of the radiant heating in the scope of work and differentiate between the mesh in the floor and the radiant heat tubes.

At the job site, GPRS scanned the new development in 12 locations where the anchor bolts were to be placed. The radiant heating was not ready to be turned on, so a thermal imager was not able to be used. With the vast knowledge and experience of the GPRS technician, the radiant heat was able to be mapped using only GPR. The General Contractor now had the information they needed to proceed with the project without causing any delays in the project going forward.

Before saw cutting, trenching, or coring in Massachusetts, Rhode Island, Vermont, Maine & New Hampshire, con-tact Project Manager of GPRS, Eric Fish, at 401.474.4505 or Eric.Fish@gprsinc.com. You can also visit us on the web at www.gprsinc.com.

Radiant Heat Tubes

Ground Penetrating Radar Technology Utilized to Scan a Room inside a New Hospital in Ann Arbor, MI

Ann Arbor MI

It is always best to know more information as to what lies beneath a concrete floor before beginning to saw cut, even in the event the project is an ongoing new build of a hospital. It’s easy to say there aren’t any conduits passing through the room where saw cutting is to take place thinking nothing is there. Regardless if the building is a new build or constructed 30 years ago, the importance of knowing the paths of any sub-surface utilities should be the first step.

A general contractor had a project inside a hospital in Ann Arbor, MI where they had to make some improvements to a newly constructed room and add a floor drain. They didn’t know for sure if any conduits were placed in the floors during construction of the hospital. The fact the project was inside an ongoing newly constructed hospital, they thought nothing was laid in the concrete or just beneath but wanted to do their due diligence before compromising any utilities. Prior to saw cutting the floor, the contractor needed information on any sub-surface utilities that might be passing through the room. Ground Penetrating Radar Systems of the Ann Arbor & Detroit Michigan region was contacted by the contractor to investigate the floor for sub-surface conduits. GPRS was able to mobilize to the site and utilize the latest in GPR technology to locate any obstructions in the proposed saw cutting area. While scanning the room, GPRS located numerous embedded conduits along with the plumbing pipe that needed to be tapped into. They marked the paths of the conduits/pipes directly on the surface and also provided the depths. It was a great idea for the contractor to have the floors scanned prior to saw cutting even though they thought nothing was passing through. By having GPRS out to investigate, it saved countless hours of having to trace back the origin of the conduits.

Ann Arbor MI2

GPRS uses applications that are both safe & cost effective for everyone involved. The methods provide real-time results which allow projects to continue without interruption. For more information regarding the services GPRS provides, contact Regional Manager of Michigan, Thaddeus Bullock, at 734.377.4551 or Thaddeus.bullock@gprsinc.com.

Locating Underground Utilities at Energy Services Facility in Ohio

Ground Penetrating Radar Systems, Inc. was contacted to locate underground utilities at an energy services facility in Ohio that was planning a construction project on a site that required excavation of property close to integral facilities.

The utility location service was provided to ensure the safe excavation of the work site along with the goal of not interrupting vital services to the facility itself.  Ground penetrating radar along with radio detection and direct connect methods were used to locate the water lines, gas lines, power lines, steam lines, and unknown underground utilities that passed through or near the excavation site.

The depths of the utility lines were also detected by GPR and radio detection, giving the excavation crew additional information to avoid encountering utilities during the project.  Documentation of the located utilities was done by GPRS technicians using GPS.  A Google Earth Map, photos of the job site and a summary report were also provided by GPRS in order to ensure engineers, project managers, safety personnel and construction crew members have documentation of the findings.  The information that GPRS, Inc. is able to provide to planning and construction teams is an important step in the completion of many construction projects.  The safety and money-saving advantages of using GPRS on the job site cannot be overlooked.

Ohio - Locating Underground Utilities at Energy Services Facility in Ohio

Field markings of power, gas, water, and steam lines located with GPR and radio detection methods.

In construction, professionalism is everything, and completing your projects without incidents can make or break your bottom line. When you are excavating, it is important to have the utilities privately and publicly located. Utilizing GPRS for your project will help reduce injury, reduce lost productivity, and maintain incident-free professionalism that your clients demand.

GPRS uses the latest and greatest technology to locate power lines, fiber lines, water lines, UST’s, storm drains, and sewer drains under the surface. Utilizing GPRS on your project can help mitigate costly repairs, prevent severe injuries, and also maintain the integrity of your project.

Ground Penetrating Radar Systems of Pittsburgh is available to service the private utility locating and concrete scanning needs of Western Pennsylvania.

GPR & Radio Detection used to Locate Conduits in a Slab at a School in Ann Arbor, MI Prior to Saw Cutting

GPR & Radio Detection

A lot of times in older schools, electricians placed conduits in the pour of the concrete. It’s always hard to know the actual paths of the conduits 20-30 years after. There is technology such as ground penetrating radar & radio detection that can help identify where the conduits were placed. It is always good practice to have the floors scanned prior to any saw cutting to ensure existing utilities don’t get compromised.

In this situation, a general contractor began to saw cut the floors without having GPR & radio detection utilized. Once they began the saw cutting, numerous conduits were struck immediately. GPRS of Michigan was contacted by the general contractor to investigate the concrete floors before saw cutting any further. Once notified of the situation, GPRS was able to mobilize to the site the following day. They used a high resolution concrete antenna along with a radio detection device to scan the rest of the proposed saw cutting areas. As you can see from the photos it was a great idea for the general contractor to contact GPRS to scan the floors going forward. Numerous conduits were marked directly on the surface with the depths provided. It would’ve have taken days to figure out the paths of where the conduits ran to if they were cut & had to be replaced. Plus, the school was still in session so there would’ve been some power knocked out that was feeding the classrooms. The GPRS technician walked the site contact around to ensure everyone was on the same page with what had been located. In the future the general contractor mentioned they will no longer saw cut without having the floors scanned prior.

GPR & Radio Detection-2

Ground Penetrating Radar & Radio Detection are both great methods to locate underground utilities, sub-surface voids, conduits, reinforcing steel, etc. If you would like more information regarding the capabilities of GPRS, please contact Regional Manager of Michigan, Thaddeus Bullock, at 734.377.4551 or thaddeus.bullock@gprsinc.com. You can also visit the website at www.gprsinc.com.

GPRS Locates Utilities outside First Energy Stadium

Ground Penetrating Radar Systems was recently called by a general contractor to locate utilities for a project just outside First Energy Stadium in Cleveland, Ohio.  The scope of work was to locate any underground utilities for a new pole location that needed to be installed.  By using GPR and Radio Detection, a gas line, electrical lighting conduit, and communication duct bank were located in the area of concern.  GPRS was able to designate areas to safely install new pole locations.  GPR and Radio Detection is an accurate and effective way of locating underground utilities prior to excavation.  Give us a call prior to your next project and we will find what’s below the ground.

Below lists further details of the equipment used.
GPRS Locates Utilities outside First Energy Stadium

Equipment

Equipmenttool

Ground Penetrating Radar (GPR)

  • GSSI SIR – 3000
    • GPRS uses a Geophysical Survey Systems Inc. (GSSI) SIR-3000 Radar unit. This is the most advanced GPR available. It allows for onsite interpretation, as well as stores data for later processing. This equipment is self-calibrating, allowing more precise depth and location measurements.
  • 1600 MHz Antenna
    • This antenna allows data collection to a maximum depth of approximately 18”, depending on concrete conditions

Radiofrequency Detection System (RD)

  • RD 7000+
    • This is an electro-magnetic tone locating device manufactured by Radio Detection. This specific model detects live power and RF signals underground, allowing us to locate electrical or telephone lines even if they are below the minimum size requirements to be detected by GPR.  It also allows us to detect utilities via induction or conduction with an exposed or known surface of the utility.

For more information on how GPRS, Inc. can help you on your next project, please contact Micah Stair at 330-639-8933 or by email at micah.stair@gp-radar.com.  We also have the capabilities of locating conduits, rebar, and post tension cables in a concrete slab.


GPRS Makes Demolition Project Safer at Ann Arbor University

University in Ann Arbor

Having information on what lies beneath the concrete floors prior to saw cutting is essential to ensure the safety of the workers involved with the demolition. Also, having the information of where existing embedded conduits & plumbing run throughout the areas allows everyone to devise a plan as to where future utilities should be placed. The last thing you would want to do is cut through an electrical conduit that is feeding a portion of the University. Ground Penetrating Radar should be used to provide as much information as possible so that the saw cutting process goes smoothly.

A plumbing contractor had a project inside a University building in Ann Arbor, MI where they needed to saw cut portions of concrete slabs to install new utilities throughout the space. There was a need to locate all the existing plumbing lines that passed through the areas so that a plan could be devised on how to place the new plumbing. There was also a concern considering the main electrical panel was in the same area as the future saw cuts. The contractor didn’t have any information as to where the electrical passed through. The risk of possibly damaging multiple live power feeds during the saw cutting was too great to continue without added information. Ground Penetrating Radar Systems of Ann Arbor, MI was contacted by the plumbing contractor to conduct a concrete investigation to determine the paths of any embedded conduits & existing plumbing lines. GPRS performed the project using a 1600 MHz high resolution concrete antenna accompanied with a RD8000 (radio detection wand). The equipment used allowed GPRS to identify the main live power feeds passing through the saw cut areas & mark the findings directly on the surface in real time. All of the plumbing lines were also identified throughout the areas. All the findings were then communicated clearly to the onsite Superintendent.

University in Ann Arbor2

Don’t saw cut, core drill or dig without calling GPRS first. For more information in the Ann Arbor, MI area, contact Regional Manager, Thaddeus Bullock at 734.377.4551 or Thaddeus.bullock@gp-radar.com. You may also visit www.gp-radar.com.

GPRS Locates Electrical/Data Conduits at the Cleveland Clinic-Richard E Jacobs Health Center in Avon, Ohio

On December 19th 2016, Ground Penetrating Radar Systems (GPRS) was requested on site by a general contractor to perform a Ground Penetrating Radar (GPR) survey at the Cleveland Clinic-Richard E Jacobs Health Center.  The contractor needed to saw cut a trench to install new plumbing lines and remove existing drains.  The contractor needed to know if there were any conduits in the area to avoid saw cutting through them.  GPRS located two active electrical/data banks of conduits going directly through their saw cut area.  The conduits were painted on the surface with depth indications so that the contractor could safely saw cut over or around them without hitting the conduits.  The hospital had no drawings showing the banks of conduits.  Without GPRS on site, the contractor would have saw cut through them as they were right at the bottom of the concrete slab.  Before you saw cut or core drill, call GPRS to know what’s underground!

The pictures below show the banks of conduits marked out on site.

Avon1

Avon2
 

Equipment

Equipment

Ground Penetrating Radar (GPR)

  • GSSI SIR – 3000
    • GPRS uses a Geophysical Survey Systems Inc. (GSSI) SIR-3000 Radar unit. This is the most advanced GPR available. It allows for onsite interpretation, as well as stores data for later processing. This equipment is self-calibrating, allowing more precise depth and location measurements.
  • 1600 MHz Antenna
    • This antenna allows data collection to a maximum depth of approximately 18”, depending on concrete conditions

Ground Penetrating Radar Systems is the best way to ensure the locations of reinforcement and conduits prior to saw cutting/drilling through concrete.  For more information on how GPRS, Inc. can help you on your next project, please contact Micah Stair at 330-639-8933 or by email at micah.stair@gp-radar.com.  We also have the capabilities of locating underground utilities, UST’s, and voids.