Q5 Water Surface Sketch Sketch the expected water surface profiles for the following figure. Assume that the channel width and side slopes are constant in each reach. Label the point of controls (POC), Location of rapidly varied flow (RVF) and the water surface profile (M1, S3, etc). Assume that the water surface at the dam on the downstream end is larger than critical and normal depth. Mild Channel Mild Channel 1% Slope 0.5% slope Horizontal Channel Steep Channel