Olson Engineering, Inc. offers consulting services for a wide variety of Nondestructive Testing (NDT) and geophysical investigations.

Olson’s NDT services can test, evaluate, image, measure, and scan almost any type of structural or infrastructure element, and offer options for repair of the concerns found, allowing the risk to be mitigated.  Olson’s geophysical imaging services are primarily applied to engineering, environmental and ground water problems helping to determine subsurface conditions that are problematic, anomalous or unpredictable, permitting our clients to better design and minimize risk for construction, site investigation, and drilling. The strength of Olson Engineering is that we have a dedicated team of professional staff that can image and evaluate man-made structures with NDT, and characterize geologic conditions for many applications. The staff of engineers and geoscientists work closely to provide superior evaluation of your structural or site concerns.  Olson conducts about 200 projects per year domestically and internationally.

NDT methods are applied to:
  • Pavements
  • Concrete
  • Buildings
  • Bridges
  • Foundations
  • Dams and their appurtenances
  • Civil infrastructure 
  • Characterize earth materials
  • Structural health monitoring
Geophysical methods are applied to: 
  • Dams
  • Levees 
  • Unknown foundations
  • Windfarms
  • Pipelines
  • Landfills
  • Contaminated sites
  • Karst problems 
  • Exploration and resource evaluation

The benefits of NDT include complete diagnosis of visible and hidden structural material conditions with minimal or no damage along with lower cost and reduced risk for the public, owners, contractors, and engineers. Similarly, geophysics is a non-invasive approach to image large volumes of earth materials beneath a site in one-, two- or three-dimensions (1D, 2D or 3D), and uses any existing geotechnical data to calibrate (i.e., ‘ground truth’) the results between, below and beyond drill holes.  

Both NDT and geophysical testing are highly technical and interdisciplinary, therefore at Olson Engineering we have assembled a team of highly-educated and experienced professional engineers and geoscientists.  The Olson team is continually researching new methods and developing new equipment to remain your experts in the specialty services of NDT and Geophysics. Details on the various services offered and methods used by Olson are available on this site, and can be quickly linked from the column on the right side of this page. If you have a specific question or need additional information, please contact us.