An open-channel reach of the critical bed slope is located after a steep reach and before a mild reach. Two gates are placed at the points where the bed slope is varied. Draw the water surface profile...

An open-channel reach of the critical bed slope is located after a steep reach and before a mild reach. Two gates are placed at the points where the bed slope is varied. Draw the water surface profile along the channel.

A weir is located in the midway of a long steep channel to measure the flow. A gate is placed at the end of the channel to elevate the water level just before the gate. Draw the water surface profile.