Curb Gutter Flow Rate

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

 

Curb gutter Flow Rate formula

\(\large{ Q =  \frac  {  0.56 }  { n } \; m_c^{5/3} \; m_l^{1/2} \; q^{8/3}  }\) 
Symbol English Metric
\(\large{ Q }\) = gutter flow rate  \(\large{\frac{ft^3}{sec}}\) \(\large{\frac{m^3}{s}}\) 
\(\large{ m_c }\) = cross slope of pavement \(\large{ft}\) \(\large{ft}\)
\(\large{ q }\) = flow width \(\large{ft}\) \(\large{ft}\)
\(\large{ m_l }\) = longitudinal slope of pavement \(\large{ft}\) \(\large{ft}\)
\(\large{ n }\) = Manning's roughness coefficient \(\large{dimensionless}\)

 

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Tags: Flow Equations