A trapezoidal channel has a 5-m bottom width and side slope m = 1. 0 and discharges 3 5 m3 /sec The smooth, concrete channel (0.01 l) has a slope of 0.004. Determine the depth of flow 6.0 re upstream from a section that has a measured depth of 1. 69 m. But first determine the channel and flow classification (e.g., M-1, S-2) and explain your supporting logic. Will the depth increase o: decrease going upstream? Use the standard step method (one step) to determine the depth.