Franki Foundations is working on behalf of BESIX Gabon as part of the duplication of the bridge, which is currently limited to a single lane.
This ambitious project aims to improve traffic flow and enhance the safety of this key piece of infrastructure.
This site comes with its share of challenges:
- A tropical environment less familiar to our teams,
- High temperatures,
- Highly variable ground conditions from one bank to the other.
- On the right bank, made up of rock and schist, our teams will execute around 70 micropiles with an average depth of 20 metres.
- On the left bank, where the soil is sandier, around 100 driven piles will support the future bridge structure.
Each ground, its own technique!