Bird's eye view of the Coaticook-Massawippi confluence. Combined LIF and PIV experimental image of streamwise orientated vortex (SOV). Summer view of the Mitis-Neigette confluence with typical Kelvin-Helmholtz instabilities present. Digital elevation models of an ice jam's elevation derived from drone photogrammetry. Scaled laboratory experiment of a river confluence. Life-cycle of an SOV visualised using laser induced flouresence. Passage of a Kelvin-Helmholtz instability in an experimental confluence flume. Ghostly volumetric render of pollutant transport at the Mitis-Neigette confluence from a 3D numerical model. Turbulent mixing processes predicted from 3D eddy-resolved numerical modeling. Experimentally reconstructed 3D track of a juvenile Rainbow trout swimming over an obstactle captured using stereoscoptic high-speed videography. Particle image velocimetry measurements of the flow over a bed-mounted bar with and without sediment deposition. 3D point cloud of sediment caught in an trap in an experimental flume. Data used to validate a 3D sediment transport model. Fish baffle design now successfully installed and operational to improve fish passage at multiple locations in Canada. 3D geometry used to numerically model a large fishway at a hydroelectric generation facility in Canada. Blender render of an outdoor experimental fish passage testing flume located in the United States. Blender render of the experimental flume used to track the 3D trajectories of juvenile rainbow trout.