A trapezoidal channel is to be designed through a silty clayalluvium on a slope of 0.0035 ft/ft. The angle of repose of thematerial is 35° and the Manning coefficient is 0.025. If thechannel is to be designed to carry a maximum discharge of 700 cfsat a depth of 4.9 ft, determine if rip-rap will be required, and,if so, compute the stone size for both the bed and sides.
