Design a trapezoidal channel lined with stone masonry to carry a discharge of 50cfs. Assume a bottom slope of S0 =0.002 and a side slope of z=0.577. Consider the best hydraulic section. In your answer, report the top width, bottom width, and depth of the channel section. Design a parabolic channel lined with gravel riprap to carry a discharge of 20cfs. Assume a bottom slope of S0 =0.009 and specific weight of water y=62.4lbf/ft 3. Consider the best hydraulic section. In your answer, report the top width and depth of the channel section.