For 6 months, they worked on the construction of multiple structures :

- High resistance plated mesh coupled with a coconut mat
- Reinforced concrete cap beam with drainage water collection gutter
- Nailed wall in dry shotcrete
- Double-twisted hanging wire mesh

Key figures :

- 1,200 m² of shotcrete
- 3,900 m of anchors
- 2,000 m² of high resistance mesh
- 750 m of sub-horizontal drains
- 500 m3 of concrete
- 6,000 m² of hanging wire mesh

Congratulations to the Résirep and Forézienne teams who worked tirelessly to restore traffic on the A20 !