Description
A culvert is a covered channel of relatively short length designed to pass water through an embankment (e.g. highway, railroad, dam). It is a hydraulic structure and it may carry flood waters, drainage flows, natural streams below earthfill and rockfill structures. From a hydraulic aspect, a dominant feature of a culvert is whether it runs full or not.
The design can vary from a simple geometry (i.e. box culvert) to a hydraulically-smooth shape (i.e. Minimum Energy Loss culvert) (Chanson 2004).
The video shows the flow in a box culvert (barrel width : 0.15 m). for a discharge less than the design flow rate. The model is in perspex . The video shows first the inflow, the barrel flow and later the outflow. The movie was taken in the Gordon McKay Hydraulics Laboratory of the University of Queensland.
