GPR Utility Scanning Used to Locate Underground Utilities in Toledo, OH

GPRS (Ground Penetrating Radar Systems, Inc.) was recently hired by a local contractor to scan for any utilities in an area where an existing slab would be removed and replaced. The contractor started excavating in the area before our scanning when they discovered a gas line running through the area they would be excavating in. Prior to our scanning, the contactor believed that this gas line ran in a different direction according to the site plans given to them from the building’s owners. Once we arrived, we walked the site with the onsite contact and discussed their plans for removing the existing slab as well as how deep they planned to excavate for the new slab. This was done in order to determine exactly what areas needed scanning and to get an idea of how deep we should scan for utilities. Upon completing the walk-through with the customer, we first used our EM Pipe Locator and walked the proposed area to get an idea of any live communication or electrical signals present within the areas to be scanned. Once we were ready to scan, we set-up and calibrated our 350MHz antenna and GSSI SIR-4000 unit at the area to be excavated and began scanning. During our scanning, we marked all findings on the surface using the appropriate color of paint and flags. The image below depicts our Toledo/NW Ohio Senior Project Manager, Justin Rasanow, scanning on an asphalt drive next to the area being excavated as requested by the contractor. The remaining two images depict on-site photos of areas that were scanned with the located utilities indicated on the surface. It is important to call GPRS and have each area being excavated scanned with GPR prior to any work being done. In this case, we were able to help the contractor avoid possibly excavating through different electrical conduits, a gas line and several unknown utilities. Upon the completion of our scanning and explanation of our markings to the site contact, the contractor was able to determine where they should dig more cautiously when excavating the area.

Contact either Justin Rasanow (419) 481-6737, Justin.rasanow@gprsinc.com or Andy Jurski (419) 376-5021, andy.jurski@gprsinc.com for any of your concrete or utility scanning needs.

GPRS does not provide geophysical, geological, land surveying or engineering services. If you need such services, please contact an appropriate professional.