Having knowledge of exactly where underground utilities and features in the subsurface are located ensures that the project can proceed effectively, efficiently and safely. 

Disrupting private utilities on a project, causing unnecessary headaches for your clients can be a nightmare, but can also be avoided. Prior to any coring, cutting, digging or drilling, It is important to have a Utility Location Survey performed to avoid any accidental shutdowns, safety hazards, or increased insurance through accidents.

Ground Penetrating Radar (GPR)

​Ground penetrating radar (GPR) offers the means to detect embedded or hidden objects within the near subsurface. This non-destructive method uses electromagnetic energy to detect reflected signals from subsurface structures. GPR can be used in a variety of media including concrete, brick, asphalt, and soil. GPR can detect objects, changes in material, as well as voids and fractures.
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GPR uses transmitting and receiving antennas. The transmitting antenna radiates short pulses of the high-frequency (usually polarized) radio waves into the surface. When the wavelet hits an embedded object or a boundary with different dielectric constants the receiving antenna records variations in the reflected return signal.
Applications for GPR
  • Utility location
  • Conduit location  
  • Reinforcement location  
  • Post tension cable location 
  • Slab thickness 
  • Voids 
  • Underground storage tank location 
  • Drum location 
  • Duct bank location 
  • Septic system location  
  • Wall and ceiling surveys 
  • Structural boundary surveys  
  • Soil interface survey 
  • Detection of bridge deterioration 
  • Site assessment for Phase II investigation 
  • Water table mapping  
  • Shallow bathymetry investigation  
  • Engineering site investigations  
  • Hydrogeological investigations  
  • Detection of sub-surface cavities  
  • Location and orientation of buried metallic objects  
  • Archaeogeophysical investigations 
  • Forensic investigations 
553 East Jefferson
Detroit, MI 48226
(734) 780-6849
1230 North Maple Road
Ann Arbor, MI 48103
(734) 474-4591
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