Assessing the efficiency of mitigation measures for saltwater intrusion in man-made canals: A comprehensive modelling study of the Ghent-Terneuzen canal

As the New Lock Terneuzen is currently being build, the saltwater intrusion is expected to become more pronound if no action is taken, illustrating the need for mitigation measures. This research’s findings lead to the conclusion that the canal’s salinity levels will escalate as a direct consequence of the construction of the New Lock Terneuzen, necessitating the implementation of appropriate measures. The study emphasizes the importance of physical structures in achieving significant reductions in saltwater intrusion. particularly the saltwater trap and elevated threshold show promising effectiveness in reducing saltwater intrusion. The continuous discharge through culverts is believed to contribute to their success. Consequently, the management measures regarding upstream discharge exhibit limited potential and high uncertainty in water availability, indicating their inadequate strength in mitigating saltwater intrusion.