Seismic Refraction Profiling

NDT uses seismic refraction profiling in civil engineering projects to profile bedrock and the thickness of overlying soil layers. We use the seismic compressional wave velocity values measured by seismic refraction profiling to calculate moduli (strength) values of subsurface materials and to make general material identification. Seismic refraction profiling uses include evaluation of excavation techniques; identifying sinkholes, landslides and embankment failures; as well as provide critical top of rock and soil information for project designers.



  • Scour ranking of Bridges
  • I-69 Indianapolis Indiana-Sinkhole Detection
  • Sleepy Hollow, NY-Top Of Bedrock Profiling for Pipeline Design
  • Highway Road Cut Route 70 New Mexico-Bedrock Velocity for Rock removal Design
  • Bulls Bridge, Connecticut Earth Embankment-Top of Bedrock Profile