A trapezoidal channel is to be designed through a silty clay alluvium on a slope of XXXXXXXXXXft/ft. The angle of repose of the material is 35° and the Manning coefficient is XXXXXXXXXXIf the channel...

A trapezoidal channel is to be designed through a silty clay alluvium on a slope of 0.0035 ft/ft. The angle of repose of the material is 35° and the Manning coefficient is 0.025. If the channel is to be designed to carry a maximum discharge of 700 cfs at 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.