Water is to be transported in a cast iron rectangular channel with a bottom width of 6 ft at a rate of 70 ft³/s. The terrain is such that the channel bottom drops 1.5 ft per 1000 ft length. Determine the minimum height of the channel under uniform-flow conditions.

FIGURE P13–57E

Transcribed Image Text:

V = 70 ft³/s y b = 6 ft