Zandkreekdam (1957-1960)
Shortly after the storm surge barrier in the Hollandse IJssel is finished, the construction of the Zandkreekdam starts. This 830-metre-long dam connects Zuid-Beveland with Noord-Beveland and separates the Oosterschelde from the Veerse Meer. Just like with many other dams, caissons (sinkable large concrete boxes) play an important role in the construction of the Zandkreekdam. Here, “unity caissons” are used, the size of a semi-detached house.
To avoid the immensely heavy caissons from disappearing into the sea bed, a “pavement” is made on top of the sea bed which is made up of a thick layer of sand and rubble. To avoid water from streaming through this the spaces between the rocks are filled up with sand and gravel.
After sinking them, the caissons are hidden under a layer of sand and gravel. Once the dam is finished, a bridge and lock are built, so ships are able to reach Middelburg and Vlissingen via the Veerse Meer and the Channel through Walcheren.


With the increase of traffic on the Midden-Zeeland-route (N256), the hindrance for road traffic when the bridge is open for ships also increases. This is why, in the year 2000, it is decided to create a bypass with a second bridge on the side of the Veerse Meer. When the bridge on the side of the Oosterschelde is open, road traffic can cross the bridge by the Veerse Meer.
To improve the quality of the water of the Veerse Meer – which had become brackish and murky after the closing of the Oosterschelde – fresh salt water is let in via the in 2004 constructed Katse Heule. The water in the Veerse Meer became saltier, more oxygenated and clearer because of it.