Hydraulic jump, low head dam installation, and coarse sediment transport

River Geomorphology Video created by Little River Research and Design, with funding from the Missouri Department of Natural Resources. As the clip opens you see shallow flow with uniform bedmaterial transport throughout. A small low head wier or dam is installed. This produces deep subcritical flow above the dam and critical flow over it. Below the dam we see supercritical flow. The deeper, low velocity flow above the dam cannot move the coarse bedload