As shown in the sketch below, the expansion transition (n = 0 015) from a rectangular conc...

As shown in the sketch below, the expansion transition (n = 0 015) from a rectangular concrete channel (n = 0.015) to a trapezoidal earth channel (n = 0.035) is 61.0 m

(200ft) long. The rectangular channel has a bottom width of 15.2 m (50.0 ft) and a slope of 0.0005 while the trapezoidal channel has a bottom width of 22.9 m (75 ft), 4H:1V side slopes, and a longitudinal slope of 0!001. If the discharge in the channel is 283.3 cms (10,000 cfs), compute the water depth in each channel and the headloss in the transition based on the average friction slope and an expansion loss coefficient of 0.4. Compute the elevation of the invert of the trapezoidal channel at the end of the transition.