Ground Penetrating Radar (GPR) Systems non-destructively assess and evaluate dams and related structures.

GSSI is the world leader in the development, manufacture, and sale of ground penetrating radar (GPR). Its equipment is used all over the world to explore the subsurface of the earth and to inspect infrastructure systems non-destructively. GSSI created the first commercial GPR system over 50 years ago and continues to provide the widest range and highest quality GPR equipment available today.

Dams are engineering structures constructed for different purposes and vary in sizes, shape, and types. As such, characterization of the structure and substructures can be challenging and require multiple geophysical instruments. Ground Penetrating Radar (GPR) is an established and safe non-destructive testing technique for subsurface exploration. It provides a quick and high-resolution survey option.

GPR used for dam investigations can provide information on sediment build up, rip rap monitoring, and leak or void detection.


Non-destructive imaging of the subsurface and manmade materials

Characterizing Internal Structures

Detection of cavities

Concrete inspection and geotechnical investigation of dams, earthen levees and embankments

Reservoir and stilling basin examination

Latest news

Active and passive S-wave investigation in the Central Valley, CA, USA

To evaluate the condition of the levees, some of which are over 150 years old. The California Central Valley is crossed by over 1,100 miles of levees protecting rich farmland, cities, towns, schools, hospitals and […]

Extensive Dam Monitoring for Calaveras Dam, San Francisco

Provided a state-of-the-art Seismic Monitoring and Management Center for SFPUC’s largest Bay Area Dam, the Calaveras Dam. The Water System Improvement Program (WSIP) under the San Francisco Public Utilities Commission is a $4.8 billion, multi-year […]

Using GPR for dam safety projects

Concrete Inspection Concrete inspection is of fundamental importance in meeting the challenge of identifying and prioritizing which areas of the dam need to be repaired and which need to be replaced. Amongst the available tools […]