mayors worried about places weakened by rain

“We will request a state of natural disaster. » For Jean-Luc Lamaison, mayor of Nérigean, it's the right thing, attributing to the heavy rains the collapse of an already weakened underground quarry that this Sunday, March 10, swept away the house built on it, the road from Souloire to Nérigean. “The owner must contact the insurance…

“We will request a state of natural disaster. » For Jean-Luc Lamaison, mayor of Nérigean, it's the right thing, attributing to the heavy rains the collapse of an already weakened underground quarry that this Sunday, March 10, swept away the house built on it, the road from Souloire to Nérigean. “The owner must contact the insurance company,” summarizes the chief city judge. The house was uninhabited for several years, the assessment revealed the risk. However, he failed to obtain compensation from the Barnier Fund, under the Plan for the Prevention of Natural Risks from Land Movements (PPRN-MT).

“He came to see the damage,” says Jean-Luc Lamaison. He asked for an interview. I would like the state services to support me in this process. » The issue of these old quarries, of which there are many in Greater Libourne, is a delicate point in land management, with a number of homes potentially affected in the event of a collapse. This led to the evacuation of the Anglade sector in the neighboring town of Saint-Germain-du-Puch.

Houses destroyed

The procedure for creating the PPRN-MT was prescribed by the prefecture in 2011, reminds the mayor of Saint-Germain-du-Puch, François Tosi. It was completed in 2020 for the 11 municipalities in the region: Saint-Germain-du-Puch, Croignon, Baron, Branne, Cabara, Camarsac, Espiet, Grezillac, Nérigean, Saint-Quentin-de-Baron and Daignac, affected by the problem. It was approved in 2020. “There were risks in the Anglade sector, with five houses in question,” explains François Tosi. The owners could have been supported by Barnier's plan. The houses have been bought and will soon be destroyed. The operation should be completed by the end of the year. »

Bernard Lauret, president of the Grand Saint-Émilionnais, is also attentive to the issue. The area is interspersed with old quarries, sometimes accessible from the road. In history, state services recorded about forty events. The most notable? The collapse of an underground cavity covering 1400 m² in 1997 in the Bélair sector and the collapse of blocks along rue des Douves in 1982 in Saint-Émilion.

Precautionary principle

“I haven't heard of any recent problems,” comments the mayor of Saint-Émilion. However, he would like PPRN-MT to start working in four communes in the area: “Saint-Émilion, Saint-Laurent-des-Combes, Saint-Hippolyte and Saint-Christophe-des-Bardes. »A public investigation must be conducted, reports the website of the Gironde Prefecture.

Jean-Luc Lamaison, for his part, reconnected with the engineers of the Joint Union for the Study and Prevention of the Risks of Quarries and Cliffs (EPRCF33). “To find out where this career actually begins and ends and take the necessary steps. » François Tosi also, as a precautionary measure, to find out if the risks are aggravated by the rain in his municipality.

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