Flow through and over bridge crossings is a complex affair. Water is forced to: contract and expand due to approach embankments, flow around piers and headstocks, and overtop decks and railings. Emulating this flow, whether in a simple 1D solver or via a complex CFD 3D solution, is challenging with varying degrees of associated uncertainty.

This webinar examines how, as a modeller, bridge crossings are best modelled in 1D, 2D, 3D layered and 3D CFD approaches. The uncertainties associated with each level of modelling and comparisons with measured data and industry guidelines are presented.


Bill Syme


Bill has over 30 years’ experience working on riverine, estuarine and coastal studies, of which most have been in the flood hydraulics field.  During this time, he has successfully managed and led ... Read more

Mitchell Smith


Mitchell is an Associate Principal Engineer at BMT and leads TUFLOW FV’s software development, testing/benchmarking, support and training which most recently has involved delivery of TUFLOW FV’s n... Read more

Greg Collecutt


Greg is Team TUFLOW’s senior GPU code developer and has over 25 years’ experience in writing scientific modelling software. He has degrees in both mechanical engineering and theoretical physics, b... Read more

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