Flood hazard flood rates

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Provided by Direction Départementale des Territoires et de la Mer d'Ille-et-Vilaine

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Dataset information

Catalog

Direction Départementale des Territoires et de la Mer d'Ille-et-Vilaine catalog

Country of origin

France

Updated

2025.11.13 23:00

Created

2024.02.12

Available languages

English

Keywords

cotes, innondation, alea, risque-zonages-risque-naturel, ppri, crue, donnees-ouvertes

Datasource

Official portal for European data link

Quality scoring

Dataset description

This layer corresponds to the flood hazard calculated by hydraulic modelling for a flood event of 100 years (except on the Ise line, which includes the right-of-way and the current PPRI ratings determined by hydrogeomorphological method) and gathers all the flood ratings at a pitch of 10 cm in height. This modelling was carried out as part of the hydraulic study on the Vilaine basin and its tributaries carried out by the EGIS/DHI design office from 2020 to 2023 under the project management of the Ille-et-Vilaine DDTM. MàJ: 2025-11-13 Flood ratings (Q100): ID = ID ELEVATION = flood rating in mNGF TITLE = Name of the area concerned DATECARTE = Date of data

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