We intervene preventively in the protection of existing structures by installing stone-proof screens which are capable of stopping or slowing down any rocks which may have come away from the vertical walls overhanging the road.
The current coastal road or the secondary roads up in the caldera of Salazie are fine examples of projects carried out in Reunion Island. In Mayotte, we also used these stone-proof screens in road safety projects.
Sometimes these screens are used to protect structures other than roads: in this photo, a gabion merlon was used to protect a dam in the Saint Denis river.
