Dike inspections

High water levels and floods increasingly show the importance to properly monitor the condition of our dikes. With geophysical research, deformations and weak spots in a dike can be detected quickly and efficiently. This can be done from ground level but also from the air using a drone.

Geo-electrical measurements
Geo-electrical measurements (resistance measurements) are an electrical research technique that determines the resistance of the subsurface in a non-destructive way. This technique can be used in dike inspections if the subsurface has to be accurately mapped in order to record geological structures with a high resistance or a resistance that deviates from the surroundings. The depth range of the measurements varies from a few meters to a depth of more than 500 meters.

Dike inspections with Drone technology
T&A Survey Drone Services performs dike inspections with a drone equipped with various techniques such as infrared (IR) thermography, LiDAR and photogrammetry. Read more about Dike inspections with drones.

Detection of seepage locations in dikes with Infrared (IR) Thermography

For a regional water authority, T&A Drone Services has carried out Infrared (IR) themorgraphy measurements to identify potential seepage locations that may indicate weak spots in the dikes.