Rivers are the backbones of the vulnerable river deltas that host major portions of the world population. They are also the arteries of wetlands with the world’s richest biodiversity. Rivers supply water and construction aggregates, and they form ecological corridors and economical axes of transportation. However, rivers also cause havoc when their floods engulf the surrounding land. River engineering serves society by optimizing the numerous benefits while providing protection against flooding.
River works are among the oldest feats of engineering since the times of Chinese Emperor Yu and Egyptian Pharaoh Menes. Today, river managers and engineers are faced with the task of reconciling and optimizing the different aspects of safety, water supply, construction aggregates, navigation, hydropower and ecosystem functioning. These are the ‘functions’ of a river in the words of engineers and the ‘ecosystem services’ in the words of ecologists. The Chair of River Engineering studies and teaches measures to enhance these functions, as well as methods to assess the near-field and far-field effects of these measures, on a short term and in the long run.
The chair has a strong foundation in principles of fluid mechanics and sediment transport, developing and using mathematical codes in the SOBEK and Delft3D modelling systems. At the same time, it maintains a firm basis in field experience and laboratory experiments. The chair is manned by a dedicated staff of river engineers who worked on the Rhine branches, the Meuse, the Yangtze, the Brahmaputra, the Ganges, the Amazon, the Nile, the Colorado and many other rivers around the globe. Having close links to Deltares and Rijkswaterstaat, the staff is involved in the Room for the River programme, implementation of the European Water Framework Directive, the DVR project for sustainable river waterways and studies of climate adaptation. Key areas of fundamental research include the transport of graded sediment, the biogeomorphology of floodplains, detailed morphodynamics including the effects of larges eddies and turbulence, river bifurcations, and the hydraulic and morphological effects of river training structures.
The chair plays an active role in the Netherlands Centre of River Studies, with frequent collaboration with IHE and the universities of Utrecht, Twente, Wageningen and Nijmegen.