Maintenance dredging is required in many estuaries worldwide to provide access to ports and inland waterways. A newly developed dredging module is able to capture the two fundamental processes necessary to model the long-term impacts of dredging on turbidity.
By preparing material from maintenance dredging with selected additives, a protective dyke was constructed from 100% reused sediments.
With dredging responsibility for 11 municipalities along the environmentally sensitive Tagus estuary, the Port Authority of Lisbon needed an integrated strategic dredging plan. After detailed studies, they got it.
To take well-founded financial decisions, help manage risks and reduce uncertainty, a model for calculating the probabilistic assessment of maintenance dredging volumes was developed using the Olokola LNG project near Lagos, Nigeria, as an example.
The 2009 IADC Award for the Best Paper by a younger author evaluates how to prioritize channel maintenance dredging to ensure the safety and economic viability of waterborne transportation.
By studying the different mechanisms of sediment movement, solutions were developed to reduce sedimentation in harbours, and thus reduce the need for maintenance dredging.