Durdent (river) Durdent (river) The river Durdent is one of the many small coastal rivers that flow from the plateau of the Pays de Caux into the English Channel. The river rises just northwest of Yvetot, near Héricourt-en-Caux, at the meeting of the two streams, the Saint-Denis and the Saint-Riquier, then takes a north-northwest route, typical of the rivers of the Seine-Maritime department. It passes through the villages of Robertot, Sommesnil, Oherville, Le Hanouard, Clasville, Grainville-la-Teinturière, Cany-Barville, Vittefleur and Paluel and empties into the English Channel at Veulettes-sur-Mer. In earlier times, it powered many watermills along its course. The Durdent valley is
Seine River Crossing at Mantes-Gassicourt August. Seine River Crossing at Mantes-Gassicourt General George Patton's Third Army's Seine River Crossing at Mantes-Gassicourt was the first allied bridgehead across the Seine River in the aftermath of Operation Overlord, which allowed the Allies to engage in the Liberation of Paris. During the two days of the bridge crossing, American anti-aircraft artillery shot down almost fifty German planes. After the successful allied invasion of Normandy in June 1944, The United States Third Army was formed in France to assist in the breakout from Normandy, code named Operation Cobra. The drive to the Seine began on 3 August, when General