Non Destructive Utility Scanning at VA Hospital - St. Louis, MO

Ground Penetrating Radar Systems, Inc. (GPRS) was contacted by a construction company in order to locate utilities at a VA Hospital in St. Louis, MO. The hospital was adding a new building and expanding a few of their existing buildings. The construction company needed all utilities located, marked out on the surface with paint, flags, and a depth. When each area of concern was located, the contractor needed all findings put into a CAD file for the company to have the site drawings. The contractor contacted GPRS of St. Louis to perform the GPR and GPS mapping needed for this project. This project was time sensitive due to the hospital staying open during the duration of the project. The contractor needed this project completed prior to any excavating and in order to remain on schedule.

Isaiah Runkle of GPRS was contacted in order to perform the survey at this location. Using our 400MHz antenna and RD8000 radar equipment, we scanned each area of concern. We were able to map out all buried utilities. All located utilities were marked with paint, flags and a depth to the top of the anomaly directly on the surface. After all areas of concern were located and marked out, I clearly relayed the findings to the onsite contact. The hospital was to remain open during the project so the contractor needed to be very careful with the excavating operations. The contractor was pleased with our results and felt relieved to know where the utilities were located, and at what depth each utility was prior to excavating. This allowed for the project to stay on schedule with no setbacks.

Upon arriving onsite, I met with the contractor and went over the areas of concern that needed utilities located. I then scanned each area in a north/south, east/west pattern with the RD8000 for any power or communications. I then used the GPR 400MHz antenna to scan each area in a north/south, east/west pattern to locate the exact location and depth of the utility. Lines that were too deep to locate with the GPR, we were able to connect our RD8000 base and send a signal on the line to trace it out. I marked out all located utilities with paint, flags and a depth. I color coded each utility accordingly. Red-power, Orange-communications, Blue-water, Yellow-gas, Green-storm/sewer, Pink-unknown utility. I then used our Trimble Global Positioning System, (GPS) technology to locate the coordinates of each located utility. We then took this information and created a CAD file, so the contractor would have drawings of the site.

Above is a photo that was taken on-site which depicts Isaiah locating utilities running through the area of concern using the RD8000 to mark out a power bank in an area of concern. If you have a need for utility locating or concrete scanned before coring or saw cutting contact, Isaiah Runkle at (314-412-9806) or Isaiah.Runkle@gp-radar.com. Isaiah works out of the St. Louis office and covers the greater St. Louis area.


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