Ground Penetrating Radar Systems (GPRS) was recently called out to locate a storm drain for a contractor in Indianapolis. The contractor was planning to install a large car port on both sides of a multi-story office building. However, per the as built plans, there were a lot of under ground utilities including a large storm drain running underneath the building. GPRS was able to locate most of the utilities using traditional methods. However, the size and depth of the storm drain presented a unique challenge.
GPRS Project Manager, James Hacker, was able to setup by the man hole access point and deployed the Enviro sight RX130 crawler equipped with a video camera, large wheels and an 8KHZ transmitter attached. The storm drain being located had a diameter of 84” and its length was approximately 580LF (within property limits). The crawler was moved in increments of 10-20ft, and each time it stopped a location mark, the depth was drawn out on the asphalt. Now that the location points and depths were recorded James was able to mark out the inside diameter of the sewer pipe and it showed the path the pipe took from one end of the building to the other.
Once the work was complete the contractor could now make decisions on where to anchor their beams without hitting any underground utilities.
GPRS has many different subsurface inspection services including manhole inspections (Level 1&2), general CCTV inspections for pipe sizes ranging from 2” and up, cross bore mitigation, NASSCO reporting and mapping. No job is too big or too small, if you have an inquiry or need to schedule a CCTV pipe inspection in the Indiana area, please contact firstname.lastname@example.org or call 213-215-1835.
Note: GPRS does not provide geophysical, geological, land surveying or engineering services. If you need such services, please contact an appropriate professional.