For the stream cross section shown below, find the water surface elevation for a flow of 650 cfs. Determine channel dimensions by scale. The stream has a slope of 0.110 percent and the following...

For the stream cross section shown below, find the water surface elevation for a flow of 650 cfs. Determine channel dimensions by scale. The stream has a slope of 0.110 percent and the following characteristics:

Channel: Fairly regular section, some weeds, light brush on banks

Overbanks: Heavy weeds, scattered brush