Map Viewing Service (WMS) of the dataset: Exceptional flood hazard for a centennial flood of the Marne — Flood risk prevention plan Châlons-en-Champagne sector (department de la Marne)
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Get early access to Map Viewing Service (WMS) of the dataset: Exceptional flood hazard for a centennial flood of the Marne — Flood risk prevention plan Châlons-en-Champagne sector (department de la Marne) API!
The exceptional hazard corresponds to the additional area that would be flooded for a centennial flood in the event of a malfunction of the Marne reservoir dam (flow rate of 1 000 m³/s).
Mapping of the flood hazard for a centennial flood of the Marne carried out as part of the development of the PPRi — Châlons-en-Champagne sector (prefectural decrees of 1 July 2011). This area concerns 32 communes of Chaussée-sur-Marne in Cherville.
This digital mapping is not regulatory in nature.
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