Settlement on Major UK Highway Overpass

“I was really pleased with this data. This is what using InSAR for infrastructure is all about. As a use case, I don't think it gets any better than this. It's a very cost-effective way to see overall what's going on, where issues may lie, and what you're likely going to have to do in the future.”

Clearly visible surface deformation on the A14 Brampton viaduct in Cambridgeshire, UK, recently raised concerns about the structure's integrity. The viaduct, which allows the A14 to pass over the A1 motorway, opened in 2020 as part of a broader upgrade project on a 21-mile stretch of the A14, costing a total of £1.5bn.

This caught the attention of professional engineer Casey Jones, who asked Value.Space to conduct a satellite-based movement analysis of the viaduct to evaluate the asset’s structural condition.

In a new video on his YouTube channel, Jones details what engineers can determine from this analysis, describing it as “one of the more interesting and elegant case studies that has come along.” Watch the report to see how he uses Value.Space’s analysis to conclude:

• The data indicates that the viaduct’s bridge structure is stable.

• The north and south approaches to the bridge have experienced settlement of up to 30 mm and 47 mm, respectively, over the past three years.

• Both approach structures continue to exhibit downward movement trends without levelling off, suggesting that primary consolidation is still ongoing and likely to continue for some additional time.

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