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Remains of Mulberry harbors in Zeeland

Intentional Inundation of Walcheren

Remains of Mulberry harbors in Zeeland

At the beginning of October 1944, the British Air Force bombed the sea dike at Ritthem in the Netherlands. The aim was to flood Walcheren and force away the German army.

The dikes were repaired after the Second World War, and the land was pumped dry. To close the dike holes at Rammekens, east of Vlissingen, caissons were brought in from Normandy.

Normandy landings

These concrete caissons were initially intended to construct the Mulberry harbours (temporary portable harbours) after the Allied landing in Normandy in 1944.

The concrete caisson units were filled with stones, rubble and clay and then sunk to hold back the water. On the beach of Rammekens, two Beetles and a giant Phoenix caisson are buried in the sand.

Phoenix caisson

Of the sixty-meter-long and twenty-meter-wide Phoenix caissons, about twenty are still visible off the coast of Arromanches-les-Bains in France and one in Walcheren in the Netherlands.

Such parts of the Mulberry harbours were also reclaimed elsewhere in the Netherlands to strengthen dikes.

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