The
Grevelingendam between
Goeree-Overflakkee and
Schouwen-Duiveland was completed in 1965. The Grevelingen south of Goeree-Overflakkee were still connected to the North Sea. The storm surge could therefore be higher here, so
dykes were raised on the south side of the island in 1965. Construction of the Brouwersdam was begun immediately after the Gavelingendam was completed in order to shorten the period of higher flood. After more than six years, in the spring of 1971, the dam was finished. Between 1964 and 1971 there had been some very high water levels. In November 1966 the water was just a few centimeters below the level of the infamous
floods of February 1, 1953. Construction of the six-kilometer long dam was begun in 1962. The inlet between Goeree-Overflakke and Schouwen-Duiveland was 30 meters deep. As with other dams,
caissons with holes were lowered, allowing the tides to go through during the construction of the dam. This avoided creating too strong a current in the narrowing gap. This method was used for the northern gap at De Kous. ==Activities==