“Taking the train in recent days, I noticed that the level of the Seine was rising,” observes Serge, a resident of Montereau-Fault-Yonne (Seine-et-Marne). Due to heavy rainfall in recent days in Île-de-France, Météo France has placed the middle Seine section (between Montereau and Saint-Fargeau-Ponthierry) on yellow alert for risk of overflows. For the moment, this is a “usual” flood for the season, but the prefecture encourages residents of the municipalities concerned to limit their travel, not to take a submerged route and to move away from river courses. 'water. The water level is expected to rise further in the coming hours and reach a peak on Saturday.
“We are following the evolution of the Yonne at Montereau, which will bring a significant flow in the coming hours and days,” indicates James Chéron, the mayor (UDI). In fact, this Thursday noon, if the Seine Bassée Ile-de-France section, upstream of Montereau, was green, those further upstream of Seine Trooyenne and Aube, a tributary, were yellow, Seine upstream being orange, which suggests the flow important in a few days. In the southeast, the Yonne and the Serein are yellow while the Armançon, in the Tonnerre region, is always orange. Finally, due south, if the downstream Loing is green, the upstream Loing is yellow. A flood wave is also predictable.
“For the moment, we are not at a point of concern but it is possible that there will be some excesses. We are counting on local surveillance, we are putting state services on alert,” assures Frédéric Lavigne, the chief of staff of the prefect of Seine-et-Marne.
“We are also monitoring the Grand Morin”
Indeed, even if the Grand Morin is on green alert this Thursday midday, this capricious tributary of the Marne, 118 km long, including 77 km in Seine-et-Marne, came out of its bed at the end of February in several municipalities. Floods had been observed in Esbly, Saint-Germain-sur-Morin, Couilly-Pont-aux-Dames, Crécy-la-Chapelle, Coulommiers, Saint-Siméon, Saint-Rémy-de-la-Vanne, Jouy-sur- Morin, La Ferté-Gaucher and Pommeuse. In the latter town, Stacy Atwood, owner of the Grands Soleils ranch, saw her main meadow swallowed up by water. “We had to move the horses in a hurry and had a lot of damage to our fences and some of our land was unusable for several days,” she remembers.
Read also Pommeuse: faced with the flooding of the Grand Morin, the three bridges overlooking the river were closed
To avoid a similar episode, residents of the municipalities affected by the prefectural alert concerning the middle Seine are invited to keep informed of developments in the situation on the Vigicrues website.