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Ecuvillens steel truss

Image-based corrosion monitoring of steel trusses supporting motorway noise barriers.

3D reconstructions of the steel trusses at Ecuvillens and Posieux
Client
FEDRO / OFROU / ASTRA
Location
Ecuvillens / Posieux, FR
Material
Steel

Steel · Noise barrier support

Corrosion monitoring

Structure and inspection scope

The Federal Roads Office commissioned inspection of two steel truss structures located in Ecuvillens/Posieux. The study focused on monitoring changes in corrosion across the entire steel structure.

Inspection methodology

Drone images were processed to reconstruct the structures and segment visible corrosion. Corresponding damage areas were compared between campaigns, to identify how corrosion developed over time.

Inspection results

Detected corrosion instances in consecutive inspection campaigns were quantified and localized in a same coordinate system, allowing for growth analysis over time.

SwissInspect / YouTube

Project video

See the inspection and its results on the SwissInspect channel.

Watch on YouTube

Result examples

Example of an image of a corrosion instance.
Example of an image of a corrosion instance.
Corresponding segmentation mask. White pixels mark the segmented corrosion areas; black pixels are the background.
Corresponding segmentation mask. White pixels mark the segmented corrosion areas; black pixels are the background.

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Inspection service

We inspect your structures

Our team handles image acquisition, AI-assisted damage detection and 3D mapping, delivering inspection data and reports for your engineering review.

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Use PRIMA in your organization to manage inspection images, review damage in 3D and track the condition of your structures over time.

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