Find normal depth for a discharge of 75 cfs in a 60-inch-diameter concrete pipe (n = 0.012). The ...1 answer below »

Find normal depth for a discharge of 75 cfs in a 60-inch-diameter concrete pipe (n = 0.012). The pipe has a slope of 1.20 percent. Use Manning's equation. Find normal depth for a discharge of 50 cfs in a 48-inch diameter concrete pipe (n = 0.012). The pipe has a slope of 1.90 percent. Use Manning's equation.

## 1 Approved Answer

December 21, 2020Answer:-

21 - Given Data :-

Q = 75 cfs

D =60 in

S =0.012

n = 0.012

Consider a formula

A (Rh 2/3 ) /n = Q /1.49 (S1/2)

so Q /1.49 (S1/2) = 75 / 1.49(0.0121/2) = 459.49

Consider r =...

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