Awareness of the reference marine submersion hazard on the eastern part of TRI ST-Malo-Baie-du-Mont-St-Michel for the department of Ille et Vilaine.

This layer brings to the attention of the marine submersion reference hazard on the eastern part of TRI ST-Malo-Baie-du-Mont-St-Michel for the department of Ille et Vilaine. The studies carried out in 2015 under the Floods Directive drew up risk maps which were annexed to the Loire-Bretagne Basin Flood Risk Management Plan (PGRI Loire-Bretagne). In the eastern part of the territory subject to flood risks in the Bay-du-Mont-Saint-Michel, knowledge of the risk sectors has since improved and has taken into account up-to-date knowledge on the protection works and on the topography of sectors that were being developed at Couesnon level. On the basis of these data, a report on marine flooding was sent to the six coastal municipalities concerned on 19 September 2017:Pleine-Fougères, Roz-sur-Couesnon, Sougéal, St-Broladre, St-Georges-de-Gréhaigne and Val-Couesnon.