Assessing long period wave mitigation

Contributing to solving operational problems caused by harbour surges

Agitation by long waves often causes mooring lines in the Port of Geraldton to break, endangering both staff and vessels. The Geraldton Port Authority (GPA) – now known as Mid West Ports Authority – organised a workshop with national and international experts to find ways to address this problem. As part of the workshop, we provided a preliminary assessment of potential offshore mitigation schemes that could solve the long wave problems in the Port of Geraldton. As a result of the presentations and discussions, GPA decided not to proceed with the originally envisioned solution – a major extension of the west breakwater – because it was questionable whether sufficient benefits could be obtained, even with very large capital investments.