trapezoidal canal is to carry 45 m³/s with a mean velocity of 0.6 m/s. One side of the canal is vertical and the other has a slope of 2 horizontal to 1 vertical. Find the minimum hydraulic slope, if Manning’s N = 0.013.

a) A trapezoidal weedy excavated earth channel has a bottom slope of 1°, base width of 5 m and a side surface slope of 1:1, as shown in Figure 1. Given that n = 0.030, calculate the flow depth, y. 45° 45° - 5 m Figure 1

A trapezoidal channel with uniform flow depth 4 m. The base width is 6 m and the side slopes are equal to (1V:1H), Manning's n can be taken as shown in the figure. What is the weighted Manning's coefficient using Horton's equation. n=0.019 n=0.022/|1 n=0.012