Surface screens for maintenance of side channels

Since the dawn of civilization, engineers have adapted rivers to societal needs by implementing training works such as bank revetments, groynes, dams, and excavated new courses. They designed training works to protect land against erosion, but also to let the rivers erode and deposit sediment of the river bed into a desired morphology, making use of the energy of the river. Traditional river training works are often large and expensive, but the principle of using energy of the river to obtain a desired morphological effect can also be used with smaller devices such as vanes and screens. When placed under an angle with the flow, these vanes or screens generate vortices and transverse flows that move sediment sideward.