Faced with the risk of flooding, what system has the city of Millau put in place?

Since Wednesday October 16, the Saoutadou footbridge has been closed due to the orange rain-flood alert decreed in Aveyron. This closure was accompanied by that of the Roussel Bridge on Wednesday afternoon and this Thursday afternoon.

While the flood alert is maintained for the department this Friday, October 18, the municipality completed its decisions by also closing the parks and gardens of the municipality until the end of the bad weather, at the request of the Prefecture.

Four levels of action for the Town Hall

A series of decisions which follows, in reality, a very specific device set up by the town hall and which allows municipal agents and elected officials to act quickly and clearly to ensure the safety of the population.

Regarding the flood riskThere is four alert levels which each involve different actions. Initially, the town hall services come into play vigilance yes Tarn reaches 0.70 m in Millau and the Dourbie 0.50 m at Nant.

Yes, yes Tarn reached the 1.40 m in Millauand the Dourbie the 0.80 m in Nantthen the services go to pre-alert state. They then proceed in particular to the closure of the Saoutadou footbridge a you low ground of Maladrerie and raise the floodgates of the whitewater stadium.

An information number for the population

The level 2 is reached from 2 m height for Tarn sur Millau. The threshold of pre-alert is then reinforced with the mobilization of road agents and the establishment of mermaids and of information panels. The alert on-call framework the general management of services and elected officials and the number 0825 800 727 (15 cents/min) which gives all the water level coast information Tarn and Dourbie is activated.

From 2.50 m high for the Tarn in Millau et 1.20 m high for the Dourbie in NantTHE municipal services pass into alert state. The Prefecturethe services of Police (national and municipal), the SDIS (firefighters), the Department and the recycling center are alerted, as are the campsites et campervan areas.

An action unit set up if necessary

Yes, yes Tarn reaches 3 m high at Millau and the Dourbie 1.50 m in Nantthe level 3 of the device provides that the Municipal Operational Center (CCO) is activated. It aims to coordinate the action of teams from the municipal technical center which could be mobilized. At the same time, the Roussel Bridge must then necessarily close and his guardrails loweredwhile the stormwater system valves must be closed.

The last level is reached when the Tarn reaches 4 m on the Millau scale and the Dourbie reaches 2.50 m in Nant. He can also be activated if the forecasts estimate a rise in Tarn at a level of 5.50 m in Millau and of 3.10 m for Dourbie in Nant. It is at this level that the Communal Command Post (PCC)bringing together numerous elected officials, municipal agents and possibly state services under the authority of the Sub-Prefecture of Millau, is activated.

The car siren is then sent to alert the population, information is displayed on information panels and residents living in flood zones also receive a automatic call alerting them of the need to evacuate (Antibia device).

Which areas are affected by the risk of flooding?