Where should the dam be placed?

Deep thoughts about where the dam should be placed, prevailed the construction of the dam. The dam should primarily protect the islands of Goerree Overflakkee and Schouwen Duiveland. For that reason, the dam should be placed as far west as possible. After the pros and cons of four locations had been weighed against each other, the section in which the dam runs to the sandbar Middelplaat via Schouwen Duiveland and from there to Goerree Overflakkee, via the next sandbar, the ‘Kabbelaarsplaat’, was chosen. The first advantage was that the distance between the Oosterschelde barrier and the Brouwers dam was minimal. This was advantageous to the traffic. The second advantage was a financial one. The section that was chosen, was between twenty and thirty per cent cheaper than the alternatives. On September 25th 1962, the section was approved by the government.

Sand bars

Because the water between both sandbars was very narrow and shallow, it was decided to create one sandbar out of the two by closing the narrow canal with sand. As a result of that, there were only two gaps: one on the north side and one on the south side. Caissons were chosen to close the gap on the north side, whereas the gap on the south side was closed by means of a cableway. It was decided to close the gaps simultaneously, because the current could have caused problems. This way, the burden was shared.