In 1653 the municipality of Wateringen commissioned a drainage sluice to be built here. The coat of arms of the various District Water Boards, which were involved in the construction of the sluice, can be found at the side of the "havenkom" (inner-harbour). The memorial plaques also found here denote the "high water marks" reached during the various floods. The memorial stone of 1953 is situated near the Monsterse Sluis (Monster Sluice).

Co-operation between the various municipalities was not at it's best in the 11th and 12th centuries. Consequently, it was difficult to reach an agreement regarding the joint drainage of excess water. When the municipality of Vlaardingen complained that the "Vlaardingse Vaart" (Vlaardingen Canal) was being overburdened it was suggested that each municipality take care of their own drainage. And so the brooks from the Vlaardingen Canal to the Maas River were created. On the site of the starting-point of these waterways out to the Maas River stands present-day Maassluis (Maas Sluice). Subsequently, the municipalities of Monster and Wateringen constructed the Monster and Wateringen Sluices. The municipalities of Maasland, Naaldwijk and Voorburg were, however, able to reach an agreement and combined to excavate "de Boonervliet" (the Booner Brook). Nevertheless, they decided to build three adjoining, yet separate, sluices.