Devastated by the storm, the Lyons forest partly closed to the public

The storm that crossed the Normandie On the evening of Wednesday June 25, 2025 will not have spared the state forest of Lyons.

3,500 of the 10,700 hectares were swept by the winds, the rain and the hailstones, mainly in its western part as specified in theNational Forest Office (ONF) in a press release.

“All the roads on the thunderstorm trajectory have been cut. »»

The forest closed in part to the public

The next day, Thursday, June 26, 2025, the foresters began the release and securing work, in the forest, on the forest roads as well as on the outskirts of public roads, in connection with the services of the department and the municipalities concerned. Large -scale work.

“The forest is dangerous as it is. Given the scale of the damage and the sites to be implemented, the ONF decided to close the forest, on its hardest affected part, and until further notice. »»

It is thus prohibited to go to the forest to the municipalities of Rosay-sur-Lieure, Charleval, Perriers-sur-AndelleThe hugues, Vascœuil et The tronquay in Eure but also those of Haye and The leafyin Seine-Maritime.

In fact, all the events authorized by the ONF bringing together public on this part are canceled.

The NFB asks the public to respect the rumors and signage prohibited the dangerous areas.

70 hectares destroyed at 100 %

According to the latest elements of the inventory made by the foresters, an area of ​​around 70 hectares was 100 %destroyed, including the organized biological reserve.

100 hectares around Colmont and Mont du Frêne are 50 %affected.

In the butcher’s croc sectors, ash oven and the sale of broom, the forest is 30 %destroyed.

The volume of wood on earth is estimated at 30,000 m³.

Vigilance in the parts still accessible

Regarding the still accessible parts, the ONF appeals a vigilance.

“The reception areas are secure but it is important to respect the ban on penetrating plots. Indeed, the risks of falling trees and branches are real for a few days after the storm. Weakened trees or branches can then drop (broken branches that have remained in suspension, staked trees, half-tight … ”

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