A 10-m wide rectangular channel is to carry 44 m3/s with a uniform depth of 3 m. The channel is lined with concrete, for which n is 0.014. a. What is the slope of this channel, and what is the drop in elevation per kilometer? b. If the flow in the channel were to decrease to 22 m3/s, all other data (including slope and n) being the same, what would be the depth of water?

Question

A 10-m wide rectangular channel is to carry 44 m3/s with a uniform depth of 3 m. The channel is lined with concrete, for which n is 0.014.


a. What is the slope of this channel, and what is the drop in elevation per kilometer?


b. If the flow in the channel were to decrease to 22 m3/s, all other data (including slope and n) being the same, what would be the depth of water?

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