A trapezoidal channel with a bed width of 7.0 m and a side slope of 3 : 2 has a bed slope of XXXXXXXXXXThe channel conveys a discharge of 30 /s and has the Manning roughness coefficient of 0.02. A dam...

A trapezoidal channel with a bed width of 7.0 m and a side slope of 3 : 2 has a bed slope of 0.001. The channel conveys a discharge of 30
/s and has the Manning roughness coefficient of 0.02. A dam is constructed to elevate the water level. The water depth at the dam is 2.5 m. Find the distance upstream from the dam where the water depth is 2.0 m.