AZI of the river La Maine — Linear modification of hydrodynamics — in Loire-Atlantique and Vendée

These data represent the different elements of land cover that may play a role in the hydraulic operation of the alluvial plain. This is linear objects. The zone d’#x27; study of the atlas of flood zones (AZI) of the river Maine s' extends for about 223 km, along the river Maine from its source (Vendée) to its confluence with the river Sèvre Nantaise in Vertou (Loire-Atlantique). __Origin__ This flood zone atlas (AZI) piloted by the Vendée DDE was carried out using the hydrogeomorphological method in accordance with the guide &Atlas of flood zones by hydrogeomorphological analysis — CCTP reference terms for the realisation of atlases — March 2002" the Pollution and Risk Prevention Directorate of the Ministry of Ecology and Sustainable Development;. This method s' relies on 2 complementary tools: L' stereoscopic analysis of aerial photographs and field observations. The envelopes of flood zones defined in this way have been reinforced by a search for historical floods. The inundability maps were made on the background of the scan plan 25 of l'IGN to the #x27; scale from 1/25 000 with zooms to 1/10 000 on the areas at stake. The report and mapping are available on the websites of the services of the Loire-Atlantique State (http://www.loire-atlantique.gouv.fr). __Partner organisations__ DDTM Loire-Atlantique __Links annexes__ * [Atlas-des-zones-inondables-de-la-Maine-en-Vendee-et-Loire-Atlantique](http://loire-atlantique.gouv.fr/Politiques-publiques/Risques-naturels-et-technologiques/Prevention-des-risques-naturels/Atlas-des-zones-inondables/Atlas-des-zones-inondables-de-la-Maine-en-Vendee-et-Loire-Atlantique) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/4e3d2e636ccb247079c5ac0838c874594d9d13b1)