GPR: Ground Penetrating Radar

GPR Method Overview

Ground Penetrating Radar (GPR) is non-destructive geophysical tool. It measures travel times and magnitudes of reflected pulses of EM radiation and then a 2-D or a 3-D subsurface model is generated.

Antennas with various frequencies (typically 200 MHz to 2.6 GHz) are used for different applications.

GPR Applications

  • Bridge deck integrity studies

  • Pavement thickness mapping

  • Locating cavities beneath pavement

  • Locating rebar in concrete

  • Locating utilities

  • Locating underground storage tanks (USTs)

  • Archaeological investigations (unmarked burials, etc.)

  • Mapping mine shafts

  • Forensic investigations

  • Depth to shallow bedrock

  • Mapping lithology

  • Mapping top of groundwater

  • Mapping contaminant plumes

  • Mapping water depths