A tidal bore is a surge of waters propagating upstream as the tidal flow turns to rising and the flood tide rushes into a funnel shaped river mouth with shallow waters. The present study focused on the unsteady turbulence induced by a breaking tidal bore through some physical modelling. The laboratory data were compared systematically with some field measurements conducted in the breaking bore of the Sélune River (France) by Mouazé et al. [12]. A key finding was the close agreement in terms of dimensionless free-surface and velocity data between laboratory and field observations. The results supported the implementation of the Froude dynamic similarity
