Compartmentalisation dam
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A compartmentalisation dam is a dam that divides a body of water into two parts. A typical use of such a dam is the regulation of water levels separately in different sections of a basin. One application of a compartmentalisation dam is to facilitate closures of areas with multiple tidal inlets, such as in the case of the Delta Works.[1]
Compartmentalisation dams have been deployed in scenarios where there is a significant disparity in water quality across different basins, where separation is used to address undesirable conditions. Such structures play a crucial role in water management by creating physical barriers between bodies of water with differing qualities. Noteworthy examples include the following compartmentalisation dams in the Netherlands:
- Volkerakdam: This dam was constructed to prevent saltwater intrusion into the freshwater Haringvliet, and to protect the relatively pristine Oosterschelde area from being contaminated by the polluted waters of the Rhine.[2]
- Houtribdijk: Initially built as the northern boundary for the Markerwaard, it now functions to delineate the waters between the Markermeer and IJsselmeer. Furthermore, the Houtribdijk mitigates the impact of wind fetch under certain wind conditions, which in turn reduces wave formation and wind setup within the basin.[2][3]
- Oesterdam: Erected to facilitate a tide-free navigational route from Antwerp to Rotterdam, the Oesterdam also narrows the tidal basin of the Oosterschelde. This constriction ensures that the tidal range at Yerseke and Zierikzee remains significant, even following the construction of the Oosterscheldekering.[3][4][5]
